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<a class="variable" href="#UTINYINT_MIN">UTINYINT_MIN</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#UTINYINT_MAX">UTINYINT_MAX</a>
|
|
</li>
|
|
<li>
|
|
<a class="class" href="#UnsupportedUnit">UnsupportedUnit</a>
|
|
<ul class="memberlist">
|
|
</ul>
|
|
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify">simplify</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#connector_depth">connector_depth</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#catch">catch</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#rewrite_between">rewrite_between</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#COMPLEMENT_COMPARISONS">COMPLEMENT_COMPARISONS</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#COMPLEMENT_SUBQUERY_PREDICATES">COMPLEMENT_SUBQUERY_PREDICATES</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_not">simplify_not</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#flatten">flatten</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_connectors">simplify_connectors</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#LT_LTE">LT_LTE</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#GT_GTE">GT_GTE</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#COMPARISONS">COMPARISONS</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#INVERSE_COMPARISONS">INVERSE_COMPARISONS</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#NONDETERMINISTIC">NONDETERMINISTIC</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#AND_OR">AND_OR</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#remove_complements">remove_complements</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#uniq_sort">uniq_sort</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#absorb_and_eliminate">absorb_and_eliminate</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#propagate_constants">propagate_constants</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#INVERSE_DATE_OPS">INVERSE_DATE_OPS</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#INVERSE_OPS">INVERSE_OPS</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_equality">simplify_equality</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_literals">simplify_literals</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#NULL_OK">NULL_OK</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_parens">simplify_parens</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_coalesce">simplify_coalesce</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#CONCATS">CONCATS</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_concat">simplify_concat</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_conditionals">simplify_conditionals</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_startswith">simplify_startswith</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#DateRange">DateRange</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#DATETRUNC_BINARY_COMPARISONS">DATETRUNC_BINARY_COMPARISONS</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#DATETRUNC_COMPARISONS">DATETRUNC_COMPARISONS</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#DATETRUNCS">DATETRUNCS</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#simplify_datetrunc">simplify_datetrunc</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#sort_comparison">sort_comparison</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#JOINS">JOINS</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#remove_where_true">remove_where_true</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#always_true">always_true</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#always_false">always_false</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#is_zero">is_zero</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#is_complement">is_complement</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#is_false">is_false</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#is_null">is_null</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#eval_boolean">eval_boolean</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#cast_as_date">cast_as_date</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#cast_as_datetime">cast_as_datetime</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#cast_value">cast_value</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#extract_date">extract_date</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#extract_interval">extract_interval</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#extract_type">extract_type</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#date_literal">date_literal</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#interval">interval</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#date_floor">date_floor</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#date_ceil">date_ceil</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#boolean_literal">boolean_literal</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#gen">gen</a>
|
|
</li>
|
|
<li>
|
|
<a class="class" href="#Gen">Gen</a>
|
|
<ul class="memberlist">
|
|
<li>
|
|
<a class="variable" href="#Gen.stack">stack</a>
|
|
</li>
|
|
<li>
|
|
<a class="variable" href="#Gen.sqls">sqls</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.gen">gen</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.add_sql">add_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.alias_sql">alias_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.and_sql">and_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.anonymous_sql">anonymous_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.between_sql">between_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.boolean_sql">boolean_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.bracket_sql">bracket_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.column_sql">column_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.datatype_sql">datatype_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.div_sql">div_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.dot_sql">dot_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.eq_sql">eq_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.from_sql">from_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.gt_sql">gt_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.gte_sql">gte_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.identifier_sql">identifier_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.ilike_sql">ilike_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.in_sql">in_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.intdiv_sql">intdiv_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.is_sql">is_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.like_sql">like_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.literal_sql">literal_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.lt_sql">lt_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.lte_sql">lte_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.mod_sql">mod_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.mul_sql">mul_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.neg_sql">neg_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.neq_sql">neq_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.not_sql">not_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.null_sql">null_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.or_sql">or_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.paren_sql">paren_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.sub_sql">sub_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.subquery_sql">subquery_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.table_sql">table_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.tablealias_sql">tablealias_sql</a>
|
|
</li>
|
|
<li>
|
|
<a class="function" href="#Gen.var_sql">var_sql</a>
|
|
</li>
|
|
</ul>
|
|
|
|
</li>
|
|
</ul>
|
|
|
|
|
|
<footer>Copyright (c) 2023 Toby Mao</footer>
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|
|
|
<a class="attribution" title="pdoc: Python API documentation generator" href="https://pdoc.dev" target="_blank">
|
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built with <span class="visually-hidden">pdoc</span><img
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alt="pdoc logo"
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<a class="pdoc-button git-button" href="https://github.com/tobymao/sqlglot/tree/main/sqlglot/optimizer/simplify.py">Edit on GitHub</a>
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<h1 class="modulename">
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<a href="./../../sqlglot.html">sqlglot</a><wbr>.<a href="./../optimizer.html">optimizer</a><wbr>.simplify </h1>
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<div class="pdoc-code codehilite"><pre><span></span><span id="L-1"><a href="#L-1"><span class="linenos"> 1</span></a><span class="kn">from</span><span class="w"> </span><span class="nn">__future__</span><span class="w"> </span><span class="kn">import</span> <span class="n">annotations</span>
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</span><span id="L-2"><a href="#L-2"><span class="linenos"> 2</span></a>
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</span><span id="L-3"><a href="#L-3"><span class="linenos"> 3</span></a><span class="kn">import</span><span class="w"> </span><span class="nn">datetime</span>
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</span><span id="L-4"><a href="#L-4"><span class="linenos"> 4</span></a><span class="kn">import</span><span class="w"> </span><span class="nn">logging</span>
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</span><span id="L-5"><a href="#L-5"><span class="linenos"> 5</span></a><span class="kn">import</span><span class="w"> </span><span class="nn">functools</span>
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</span><span id="L-6"><a href="#L-6"><span class="linenos"> 6</span></a><span class="kn">import</span><span class="w"> </span><span class="nn">itertools</span>
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</span><span id="L-7"><a href="#L-7"><span class="linenos"> 7</span></a><span class="kn">import</span><span class="w"> </span><span class="nn">typing</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="nn">t</span>
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</span><span id="L-8"><a href="#L-8"><span class="linenos"> 8</span></a><span class="kn">from</span><span class="w"> </span><span class="nn">collections</span><span class="w"> </span><span class="kn">import</span> <span class="n">deque</span><span class="p">,</span> <span class="n">defaultdict</span>
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</span><span id="L-9"><a href="#L-9"><span class="linenos"> 9</span></a><span class="kn">from</span><span class="w"> </span><span class="nn">functools</span><span class="w"> </span><span class="kn">import</span> <span class="n">reduce</span>
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</span><span id="L-10"><a href="#L-10"><span class="linenos"> 10</span></a>
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</span><span id="L-11"><a href="#L-11"><span class="linenos"> 11</span></a><span class="kn">import</span><span class="w"> </span><span class="nn">sqlglot</span>
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</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a><span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot</span><span class="w"> </span><span class="kn">import</span> <span class="n">Dialect</span><span class="p">,</span> <span class="n">exp</span>
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</span><span id="L-13"><a href="#L-13"><span class="linenos"> 13</span></a><span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.helper</span><span class="w"> </span><span class="kn">import</span> <span class="n">first</span><span class="p">,</span> <span class="n">merge_ranges</span><span class="p">,</span> <span class="n">while_changing</span>
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</span><span id="L-14"><a href="#L-14"><span class="linenos"> 14</span></a><span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">find_all_in_scope</span><span class="p">,</span> <span class="n">walk_in_scope</span>
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</span><span id="L-15"><a href="#L-15"><span class="linenos"> 15</span></a>
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</span><span id="L-16"><a href="#L-16"><span class="linenos"> 16</span></a><span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">TYPE_CHECKING</span><span class="p">:</span>
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</span><span id="L-17"><a href="#L-17"><span class="linenos"> 17</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.dialects.dialect</span><span class="w"> </span><span class="kn">import</span> <span class="n">DialectType</span>
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</span><span id="L-18"><a href="#L-18"><span class="linenos"> 18</span></a>
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</span><span id="L-19"><a href="#L-19"><span class="linenos"> 19</span></a> <span class="n">DateTruncBinaryTransform</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">[</span>
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</span><span id="L-20"><a href="#L-20"><span class="linenos"> 20</span></a> <span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">Dialect</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span>
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</span><span id="L-21"><a href="#L-21"><span class="linenos"> 21</span></a> <span class="p">]</span>
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</span><span id="L-22"><a href="#L-22"><span class="linenos"> 22</span></a>
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</span><span id="L-23"><a href="#L-23"><span class="linenos"> 23</span></a><span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s2">"sqlglot"</span><span class="p">)</span>
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</span><span id="L-24"><a href="#L-24"><span class="linenos"> 24</span></a>
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</span><span id="L-25"><a href="#L-25"><span class="linenos"> 25</span></a><span class="c1"># Final means that an expression should not be simplified</span>
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</span><span id="L-26"><a href="#L-26"><span class="linenos"> 26</span></a><span class="n">FINAL</span> <span class="o">=</span> <span class="s2">"final"</span>
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</span><span id="L-27"><a href="#L-27"><span class="linenos"> 27</span></a>
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</span><span id="L-28"><a href="#L-28"><span class="linenos"> 28</span></a><span class="c1"># Value ranges for byte-sized signed/unsigned integers</span>
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</span><span id="L-29"><a href="#L-29"><span class="linenos"> 29</span></a><span class="n">TINYINT_MIN</span> <span class="o">=</span> <span class="o">-</span><span class="mi">128</span>
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</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a><span class="n">TINYINT_MAX</span> <span class="o">=</span> <span class="mi">127</span>
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</span><span id="L-31"><a href="#L-31"><span class="linenos"> 31</span></a><span class="n">UTINYINT_MIN</span> <span class="o">=</span> <span class="mi">0</span>
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</span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a><span class="n">UTINYINT_MAX</span> <span class="o">=</span> <span class="mi">255</span>
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</span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a>
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</span><span id="L-34"><a href="#L-34"><span class="linenos"> 34</span></a>
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</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a><span class="k">class</span><span class="w"> </span><span class="nc">UnsupportedUnit</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
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</span><span id="L-36"><a href="#L-36"><span class="linenos"> 36</span></a> <span class="k">pass</span>
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</span><span id="L-37"><a href="#L-37"><span class="linenos"> 37</span></a>
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</span><span id="L-38"><a href="#L-38"><span class="linenos"> 38</span></a>
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</span><span id="L-39"><a href="#L-39"><span class="linenos"> 39</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify</span><span class="p">(</span>
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</span><span id="L-40"><a href="#L-40"><span class="linenos"> 40</span></a> <span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span>
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</span><span id="L-41"><a href="#L-41"><span class="linenos"> 41</span></a> <span class="n">constant_propagation</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">,</span>
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</span><span id="L-42"><a href="#L-42"><span class="linenos"> 42</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">DialectType</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
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</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</span></a> <span class="n">max_depth</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
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</span><span id="L-44"><a href="#L-44"><span class="linenos"> 44</span></a><span class="p">):</span>
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</span><span id="L-45"><a href="#L-45"><span class="linenos"> 45</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="L-46"><a href="#L-46"><span class="linenos"> 46</span></a><span class="sd"> Rewrite sqlglot AST to simplify expressions.</span>
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</span><span id="L-47"><a href="#L-47"><span class="linenos"> 47</span></a>
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</span><span id="L-48"><a href="#L-48"><span class="linenos"> 48</span></a><span class="sd"> Example:</span>
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</span><span id="L-49"><a href="#L-49"><span class="linenos"> 49</span></a><span class="sd"> >>> import sqlglot</span>
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</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a><span class="sd"> >>> expression = sqlglot.parse_one("TRUE AND TRUE")</span>
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</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a><span class="sd"> >>> simplify(expression).sql()</span>
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</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a><span class="sd"> 'TRUE'</span>
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</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a>
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</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a><span class="sd"> Args:</span>
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</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a><span class="sd"> expression: expression to simplify</span>
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</span><span id="L-56"><a href="#L-56"><span class="linenos"> 56</span></a><span class="sd"> constant_propagation: whether the constant propagation rule should be used</span>
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</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a><span class="sd"> max_depth: Chains of Connectors (AND, OR, etc) exceeding `max_depth` will be skipped</span>
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</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a><span class="sd"> Returns:</span>
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</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a><span class="sd"> sqlglot.Expression: simplified expression</span>
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</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a><span class="sd"> """</span>
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</span><span id="L-61"><a href="#L-61"><span class="linenos"> 61</span></a>
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</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a> <span class="n">dialect</span> <span class="o">=</span> <span class="n">Dialect</span><span class="o">.</span><span class="n">get_or_raise</span><span class="p">(</span><span class="n">dialect</span><span class="p">)</span>
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</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a>
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</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="k">if</span> <span class="p">(</span>
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</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a> <span class="n">max_depth</span>
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</span><span id="L-67"><a href="#L-67"><span class="linenos"> 67</span></a> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span>
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</span><span id="L-68"><a href="#L-68"><span class="linenos"> 68</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span>
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</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a> <span class="p">):</span>
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</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a> <span class="n">depth</span> <span class="o">=</span> <span class="n">connector_depth</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
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</span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a> <span class="k">if</span> <span class="n">depth</span> <span class="o">></span> <span class="n">max_depth</span><span class="p">:</span>
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</span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a> <span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span>
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</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="sa">f</span><span class="s2">"Skipping simplification because connector depth </span><span class="si">{</span><span class="n">depth</span><span class="si">}</span><span class="s2"> exceeds max </span><span class="si">{</span><span class="n">max_depth</span><span class="si">}</span><span class="s2">"</span>
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</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a> <span class="p">)</span>
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</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a>
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</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="k">if</span> <span class="n">expression</span><span class="o">.</span><span class="n">meta</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">FINAL</span><span class="p">):</span>
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</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a>
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</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="c1"># group by expressions cannot be simplified, for example</span>
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</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="c1"># select x + 1 + 1 FROM y GROUP BY x + 1 + 1</span>
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</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="c1"># the projection must exactly match the group by key</span>
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</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"group"</span><span class="p">)</span>
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</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a>
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</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="k">if</span> <span class="n">group</span> <span class="ow">and</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="s2">"selects"</span><span class="p">):</span>
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</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="n">groups</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">group</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span>
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</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="n">group</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
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</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a>
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</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span>
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</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span>
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</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span>
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</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="n">e</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
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</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="k">break</span>
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</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a>
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</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="n">having</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"having"</span><span class="p">)</span>
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</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="k">if</span> <span class="n">having</span><span class="p">:</span>
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</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">having</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span>
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</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span>
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</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="n">having</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
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</span><span id="L-100"><a href="#L-100"><span class="linenos"> 100</span></a> <span class="k">break</span>
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</span><span id="L-101"><a href="#L-101"><span class="linenos"> 101</span></a>
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</span><span id="L-102"><a href="#L-102"><span class="linenos"> 102</span></a> <span class="c1"># Pre-order transformations</span>
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</span><span id="L-103"><a href="#L-103"><span class="linenos"> 103</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">expression</span>
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</span><span id="L-104"><a href="#L-104"><span class="linenos"> 104</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">rewrite_between</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-105"><a href="#L-105"><span class="linenos"> 105</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">uniq_sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="L-106"><a href="#L-106"><span class="linenos"> 106</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">absorb_and_eliminate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="L-107"><a href="#L-107"><span class="linenos"> 107</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_concat</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-108"><a href="#L-108"><span class="linenos"> 108</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_conditionals</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-109"><a href="#L-109"><span class="linenos"> 109</span></a>
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</span><span id="L-110"><a href="#L-110"><span class="linenos"> 110</span></a> <span class="k">if</span> <span class="n">constant_propagation</span><span class="p">:</span>
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</span><span id="L-111"><a href="#L-111"><span class="linenos"> 111</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">propagate_constants</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="L-112"><a href="#L-112"><span class="linenos"> 112</span></a>
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</span><span id="L-113"><a href="#L-113"><span class="linenos"> 113</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">replace_children</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">_simplify</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span>
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</span><span id="L-114"><a href="#L-114"><span class="linenos"> 114</span></a>
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</span><span id="L-115"><a href="#L-115"><span class="linenos"> 115</span></a> <span class="c1"># Post-order transformations</span>
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</span><span id="L-116"><a href="#L-116"><span class="linenos"> 116</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_not</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-117"><a href="#L-117"><span class="linenos"> 117</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-118"><a href="#L-118"><span class="linenos"> 118</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_connectors</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="L-119"><a href="#L-119"><span class="linenos"> 119</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">remove_complements</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="L-120"><a href="#L-120"><span class="linenos"> 120</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_coalesce</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-121"><a href="#L-121"><span class="linenos"> 121</span></a> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span>
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</span><span id="L-122"><a href="#L-122"><span class="linenos"> 122</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_literals</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="L-123"><a href="#L-123"><span class="linenos"> 123</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_equality</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-124"><a href="#L-124"><span class="linenos"> 124</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_parens</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-125"><a href="#L-125"><span class="linenos"> 125</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_datetrunc</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
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</span><span id="L-126"><a href="#L-126"><span class="linenos"> 126</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">sort_comparison</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-127"><a href="#L-127"><span class="linenos"> 127</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_startswith</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-128"><a href="#L-128"><span class="linenos"> 128</span></a>
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</span><span id="L-129"><a href="#L-129"><span class="linenos"> 129</span></a> <span class="k">if</span> <span class="n">root</span><span class="p">:</span>
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</span><span id="L-130"><a href="#L-130"><span class="linenos"> 130</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
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</span><span id="L-131"><a href="#L-131"><span class="linenos"> 131</span></a> <span class="k">return</span> <span class="n">node</span>
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</span><span id="L-132"><a href="#L-132"><span class="linenos"> 132</span></a>
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</span><span id="L-133"><a href="#L-133"><span class="linenos"> 133</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">while_changing</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify</span><span class="p">)</span>
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</span><span id="L-134"><a href="#L-134"><span class="linenos"> 134</span></a> <span class="n">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
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</span><span id="L-135"><a href="#L-135"><span class="linenos"> 135</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-136"><a href="#L-136"><span class="linenos"> 136</span></a>
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</span><span id="L-137"><a href="#L-137"><span class="linenos"> 137</span></a>
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</span><span id="L-138"><a href="#L-138"><span class="linenos"> 138</span></a><span class="k">def</span><span class="w"> </span><span class="nf">connector_depth</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
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</span><span id="L-139"><a href="#L-139"><span class="linenos"> 139</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="L-140"><a href="#L-140"><span class="linenos"> 140</span></a><span class="sd"> Determine the maximum depth of a tree of Connectors.</span>
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</span><span id="L-141"><a href="#L-141"><span class="linenos"> 141</span></a>
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</span><span id="L-142"><a href="#L-142"><span class="linenos"> 142</span></a><span class="sd"> For example:</span>
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</span><span id="L-143"><a href="#L-143"><span class="linenos"> 143</span></a><span class="sd"> >>> from sqlglot import parse_one</span>
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</span><span id="L-144"><a href="#L-144"><span class="linenos"> 144</span></a><span class="sd"> >>> connector_depth(parse_one("a AND b AND c AND d"))</span>
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</span><span id="L-145"><a href="#L-145"><span class="linenos"> 145</span></a><span class="sd"> 3</span>
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</span><span id="L-146"><a href="#L-146"><span class="linenos"> 146</span></a><span class="sd"> """</span>
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</span><span id="L-147"><a href="#L-147"><span class="linenos"> 147</span></a> <span class="n">stack</span> <span class="o">=</span> <span class="n">deque</span><span class="p">([(</span><span class="n">expression</span><span class="p">,</span> <span class="mi">0</span><span class="p">)])</span>
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</span><span id="L-148"><a href="#L-148"><span class="linenos"> 148</span></a> <span class="n">max_depth</span> <span class="o">=</span> <span class="mi">0</span>
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</span><span id="L-149"><a href="#L-149"><span class="linenos"> 149</span></a>
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</span><span id="L-150"><a href="#L-150"><span class="linenos"> 150</span></a> <span class="k">while</span> <span class="n">stack</span><span class="p">:</span>
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</span><span id="L-151"><a href="#L-151"><span class="linenos"> 151</span></a> <span class="n">expression</span><span class="p">,</span> <span class="n">depth</span> <span class="o">=</span> <span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
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</span><span id="L-152"><a href="#L-152"><span class="linenos"> 152</span></a>
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</span><span id="L-153"><a href="#L-153"><span class="linenos"> 153</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
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</span><span id="L-154"><a href="#L-154"><span class="linenos"> 154</span></a> <span class="k">continue</span>
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</span><span id="L-155"><a href="#L-155"><span class="linenos"> 155</span></a>
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</span><span id="L-156"><a href="#L-156"><span class="linenos"> 156</span></a> <span class="n">depth</span> <span class="o">+=</span> <span class="mi">1</span>
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</span><span id="L-157"><a href="#L-157"><span class="linenos"> 157</span></a> <span class="n">max_depth</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">depth</span><span class="p">,</span> <span class="n">max_depth</span><span class="p">)</span>
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</span><span id="L-158"><a href="#L-158"><span class="linenos"> 158</span></a>
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</span><span id="L-159"><a href="#L-159"><span class="linenos"> 159</span></a> <span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">depth</span><span class="p">))</span>
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</span><span id="L-160"><a href="#L-160"><span class="linenos"> 160</span></a> <span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">depth</span><span class="p">))</span>
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</span><span id="L-161"><a href="#L-161"><span class="linenos"> 161</span></a>
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</span><span id="L-162"><a href="#L-162"><span class="linenos"> 162</span></a> <span class="k">return</span> <span class="n">max_depth</span>
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</span><span id="L-163"><a href="#L-163"><span class="linenos"> 163</span></a>
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</span><span id="L-164"><a href="#L-164"><span class="linenos"> 164</span></a>
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</span><span id="L-165"><a href="#L-165"><span class="linenos"> 165</span></a><span class="k">def</span><span class="w"> </span><span class="nf">catch</span><span class="p">(</span><span class="o">*</span><span class="n">exceptions</span><span class="p">):</span>
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</span><span id="L-166"><a href="#L-166"><span class="linenos"> 166</span></a><span class="w"> </span><span class="sd">"""Decorator that ignores a simplification function if any of `exceptions` are raised"""</span>
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</span><span id="L-167"><a href="#L-167"><span class="linenos"> 167</span></a>
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</span><span id="L-168"><a href="#L-168"><span class="linenos"> 168</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">decorator</span><span class="p">(</span><span class="n">func</span><span class="p">):</span>
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</span><span id="L-169"><a href="#L-169"><span class="linenos"> 169</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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</span><span id="L-170"><a href="#L-170"><span class="linenos"> 170</span></a> <span class="k">try</span><span class="p">:</span>
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</span><span id="L-171"><a href="#L-171"><span class="linenos"> 171</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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</span><span id="L-172"><a href="#L-172"><span class="linenos"> 172</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span>
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</span><span id="L-173"><a href="#L-173"><span class="linenos"> 173</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-174"><a href="#L-174"><span class="linenos"> 174</span></a>
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|
</span><span id="L-175"><a href="#L-175"><span class="linenos"> 175</span></a> <span class="k">return</span> <span class="n">wrapped</span>
|
|
</span><span id="L-176"><a href="#L-176"><span class="linenos"> 176</span></a>
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|
</span><span id="L-177"><a href="#L-177"><span class="linenos"> 177</span></a> <span class="k">return</span> <span class="n">decorator</span>
|
|
</span><span id="L-178"><a href="#L-178"><span class="linenos"> 178</span></a>
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</span><span id="L-179"><a href="#L-179"><span class="linenos"> 179</span></a>
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</span><span id="L-180"><a href="#L-180"><span class="linenos"> 180</span></a><span class="k">def</span><span class="w"> </span><span class="nf">rewrite_between</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
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</span><span id="L-181"><a href="#L-181"><span class="linenos"> 181</span></a><span class="w"> </span><span class="sd">"""Rewrite x between y and z to x >= y AND x <= z.</span>
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</span><span id="L-182"><a href="#L-182"><span class="linenos"> 182</span></a>
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</span><span id="L-183"><a href="#L-183"><span class="linenos"> 183</span></a><span class="sd"> This is done because comparison simplification is only done on lt/lte/gt/gte.</span>
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|
</span><span id="L-184"><a href="#L-184"><span class="linenos"> 184</span></a><span class="sd"> """</span>
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</span><span id="L-185"><a href="#L-185"><span class="linenos"> 185</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">):</span>
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</span><span id="L-186"><a href="#L-186"><span class="linenos"> 186</span></a> <span class="n">negate</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span>
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</span><span id="L-187"><a href="#L-187"><span class="linenos"> 187</span></a>
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|
</span><span id="L-188"><a href="#L-188"><span class="linenos"> 188</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
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</span><span id="L-189"><a href="#L-189"><span class="linenos"> 189</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"low"</span><span class="p">]),</span>
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|
</span><span id="L-190"><a href="#L-190"><span class="linenos"> 190</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"high"</span><span class="p">]),</span>
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|
</span><span id="L-191"><a href="#L-191"><span class="linenos"> 191</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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|
</span><span id="L-192"><a href="#L-192"><span class="linenos"> 192</span></a> <span class="p">)</span>
|
|
</span><span id="L-193"><a href="#L-193"><span class="linenos"> 193</span></a>
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|
</span><span id="L-194"><a href="#L-194"><span class="linenos"> 194</span></a> <span class="k">if</span> <span class="n">negate</span><span class="p">:</span>
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|
</span><span id="L-195"><a href="#L-195"><span class="linenos"> 195</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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|
</span><span id="L-196"><a href="#L-196"><span class="linenos"> 196</span></a>
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|
</span><span id="L-197"><a href="#L-197"><span class="linenos"> 197</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-198"><a href="#L-198"><span class="linenos"> 198</span></a>
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|
</span><span id="L-199"><a href="#L-199"><span class="linenos"> 199</span></a>
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|
</span><span id="L-200"><a href="#L-200"><span class="linenos"> 200</span></a><span class="n">COMPLEMENT_COMPARISONS</span> <span class="o">=</span> <span class="p">{</span>
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|
</span><span id="L-201"><a href="#L-201"><span class="linenos"> 201</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">,</span>
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|
</span><span id="L-202"><a href="#L-202"><span class="linenos"> 202</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">,</span>
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|
</span><span id="L-203"><a href="#L-203"><span class="linenos"> 203</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span>
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|
</span><span id="L-204"><a href="#L-204"><span class="linenos"> 204</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span>
|
|
</span><span id="L-205"><a href="#L-205"><span class="linenos"> 205</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">,</span>
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|
</span><span id="L-206"><a href="#L-206"><span class="linenos"> 206</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
|
|
</span><span id="L-207"><a href="#L-207"><span class="linenos"> 207</span></a><span class="p">}</span>
|
|
</span><span id="L-208"><a href="#L-208"><span class="linenos"> 208</span></a>
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</span><span id="L-209"><a href="#L-209"><span class="linenos"> 209</span></a><span class="n">COMPLEMENT_SUBQUERY_PREDICATES</span> <span class="o">=</span> <span class="p">{</span>
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|
</span><span id="L-210"><a href="#L-210"><span class="linenos"> 210</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">All</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span>
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</span><span id="L-211"><a href="#L-211"><span class="linenos"> 211</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Any</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">All</span><span class="p">,</span>
|
|
</span><span id="L-212"><a href="#L-212"><span class="linenos"> 212</span></a><span class="p">}</span>
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</span><span id="L-213"><a href="#L-213"><span class="linenos"> 213</span></a>
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</span><span id="L-214"><a href="#L-214"><span class="linenos"> 214</span></a>
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</span><span id="L-215"><a href="#L-215"><span class="linenos"> 215</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_not</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
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</span><span id="L-216"><a href="#L-216"><span class="linenos"> 216</span></a><span class="w"> </span><span class="sd">"""</span>
|
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</span><span id="L-217"><a href="#L-217"><span class="linenos"> 217</span></a><span class="sd"> Demorgan's Law</span>
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</span><span id="L-218"><a href="#L-218"><span class="linenos"> 218</span></a><span class="sd"> NOT (x OR y) -> NOT x AND NOT y</span>
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</span><span id="L-219"><a href="#L-219"><span class="linenos"> 219</span></a><span class="sd"> NOT (x AND y) -> NOT x OR NOT y</span>
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</span><span id="L-220"><a href="#L-220"><span class="linenos"> 220</span></a><span class="sd"> """</span>
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</span><span id="L-221"><a href="#L-221"><span class="linenos"> 221</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
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</span><span id="L-222"><a href="#L-222"><span class="linenos"> 222</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
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</span><span id="L-223"><a href="#L-223"><span class="linenos"> 223</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">this</span><span class="p">):</span>
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</span><span id="L-224"><a href="#L-224"><span class="linenos"> 224</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
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</span><span id="L-225"><a href="#L-225"><span class="linenos"> 225</span></a> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">COMPLEMENT_COMPARISONS</span><span class="p">:</span>
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</span><span id="L-226"><a href="#L-226"><span class="linenos"> 226</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">expression</span>
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</span><span id="L-227"><a href="#L-227"><span class="linenos"> 227</span></a> <span class="n">complement_subquery_predicate</span> <span class="o">=</span> <span class="n">COMPLEMENT_SUBQUERY_PREDICATES</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="vm">__class__</span><span class="p">)</span>
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</span><span id="L-228"><a href="#L-228"><span class="linenos"> 228</span></a> <span class="k">if</span> <span class="n">complement_subquery_predicate</span><span class="p">:</span>
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</span><span id="L-229"><a href="#L-229"><span class="linenos"> 229</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">complement_subquery_predicate</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">right</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
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</span><span id="L-230"><a href="#L-230"><span class="linenos"> 230</span></a>
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</span><span id="L-231"><a href="#L-231"><span class="linenos"> 231</span></a> <span class="k">return</span> <span class="n">COMPLEMENT_COMPARISONS</span><span class="p">[</span><span class="n">this</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">this</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">right</span><span class="p">)</span>
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</span><span id="L-232"><a href="#L-232"><span class="linenos"> 232</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span>
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</span><span id="L-233"><a href="#L-233"><span class="linenos"> 233</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span>
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</span><span id="L-234"><a href="#L-234"><span class="linenos"> 234</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span>
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</span><span id="L-235"><a href="#L-235"><span class="linenos"> 235</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span>
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</span><span id="L-236"><a href="#L-236"><span class="linenos"> 236</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span>
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</span><span id="L-237"><a href="#L-237"><span class="linenos"> 237</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
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</span><span id="L-238"><a href="#L-238"><span class="linenos"> 238</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="L-239"><a href="#L-239"><span class="linenos"> 239</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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</span><span id="L-240"><a href="#L-240"><span class="linenos"> 240</span></a> <span class="p">)</span>
|
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</span><span id="L-241"><a href="#L-241"><span class="linenos"> 241</span></a> <span class="p">)</span>
|
|
</span><span id="L-242"><a href="#L-242"><span class="linenos"> 242</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span>
|
|
</span><span id="L-243"><a href="#L-243"><span class="linenos"> 243</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span>
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</span><span id="L-244"><a href="#L-244"><span class="linenos"> 244</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
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</span><span id="L-245"><a href="#L-245"><span class="linenos"> 245</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
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</span><span id="L-246"><a href="#L-246"><span class="linenos"> 246</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="L-247"><a href="#L-247"><span class="linenos"> 247</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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|
</span><span id="L-248"><a href="#L-248"><span class="linenos"> 248</span></a> <span class="p">)</span>
|
|
</span><span id="L-249"><a href="#L-249"><span class="linenos"> 249</span></a> <span class="p">)</span>
|
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</span><span id="L-250"><a href="#L-250"><span class="linenos"> 250</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span>
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</span><span id="L-251"><a href="#L-251"><span class="linenos"> 251</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
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</span><span id="L-252"><a href="#L-252"><span class="linenos"> 252</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">this</span><span class="p">):</span>
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</span><span id="L-253"><a href="#L-253"><span class="linenos"> 253</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-254"><a href="#L-254"><span class="linenos"> 254</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">this</span><span class="p">):</span>
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</span><span id="L-255"><a href="#L-255"><span class="linenos"> 255</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
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</span><span id="L-256"><a href="#L-256"><span class="linenos"> 256</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
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</span><span id="L-257"><a href="#L-257"><span class="linenos"> 257</span></a> <span class="c1"># double negation</span>
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</span><span id="L-258"><a href="#L-258"><span class="linenos"> 258</span></a> <span class="c1"># NOT NOT x -> x</span>
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</span><span id="L-259"><a href="#L-259"><span class="linenos"> 259</span></a> <span class="k">return</span> <span class="n">this</span><span class="o">.</span><span class="n">this</span>
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</span><span id="L-260"><a href="#L-260"><span class="linenos"> 260</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-261"><a href="#L-261"><span class="linenos"> 261</span></a>
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</span><span id="L-262"><a href="#L-262"><span class="linenos"> 262</span></a>
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</span><span id="L-263"><a href="#L-263"><span class="linenos"> 263</span></a><span class="k">def</span><span class="w"> </span><span class="nf">flatten</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
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</span><span id="L-264"><a href="#L-264"><span class="linenos"> 264</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="L-265"><a href="#L-265"><span class="linenos"> 265</span></a><span class="sd"> A AND (B AND C) -> A AND B AND C</span>
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</span><span id="L-266"><a href="#L-266"><span class="linenos"> 266</span></a><span class="sd"> A OR (B OR C) -> A OR B OR C</span>
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</span><span id="L-267"><a href="#L-267"><span class="linenos"> 267</span></a><span class="sd"> """</span>
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</span><span id="L-268"><a href="#L-268"><span class="linenos"> 268</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
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</span><span id="L-269"><a href="#L-269"><span class="linenos"> 269</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">():</span>
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</span><span id="L-270"><a href="#L-270"><span class="linenos"> 270</span></a> <span class="n">child</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span>
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</span><span id="L-271"><a href="#L-271"><span class="linenos"> 271</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">child</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">):</span>
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</span><span id="L-272"><a href="#L-272"><span class="linenos"> 272</span></a> <span class="n">node</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">child</span><span class="p">)</span>
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</span><span id="L-273"><a href="#L-273"><span class="linenos"> 273</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-274"><a href="#L-274"><span class="linenos"> 274</span></a>
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</span><span id="L-275"><a href="#L-275"><span class="linenos"> 275</span></a>
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</span><span id="L-276"><a href="#L-276"><span class="linenos"> 276</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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</span><span id="L-277"><a href="#L-277"><span class="linenos"> 277</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">):</span>
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</span><span id="L-278"><a href="#L-278"><span class="linenos"> 278</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span>
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</span><span id="L-279"><a href="#L-279"><span class="linenos"> 279</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="L-280"><a href="#L-280"><span class="linenos"> 280</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-281"><a href="#L-281"><span class="linenos"> 281</span></a> <span class="k">if</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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|
</span><span id="L-282"><a href="#L-282"><span class="linenos"> 282</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-283"><a href="#L-283"><span class="linenos"> 283</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="L-284"><a href="#L-284"><span class="linenos"> 284</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
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</span><span id="L-285"><a href="#L-285"><span class="linenos"> 285</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="L-286"><a href="#L-286"><span class="linenos"> 286</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
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|
</span><span id="L-287"><a href="#L-287"><span class="linenos"> 287</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">):</span>
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</span><span id="L-288"><a href="#L-288"><span class="linenos"> 288</span></a> <span class="k">return</span> <span class="n">right</span>
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</span><span id="L-289"><a href="#L-289"><span class="linenos"> 289</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="L-290"><a href="#L-290"><span class="linenos"> 290</span></a> <span class="k">return</span> <span class="n">left</span>
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</span><span id="L-291"><a href="#L-291"><span class="linenos"> 291</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">)</span>
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</span><span id="L-292"><a href="#L-292"><span class="linenos"> 292</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span>
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</span><span id="L-293"><a href="#L-293"><span class="linenos"> 293</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="L-294"><a href="#L-294"><span class="linenos"> 294</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
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</span><span id="L-295"><a href="#L-295"><span class="linenos"> 295</span></a> <span class="k">if</span> <span class="p">(</span>
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</span><span id="L-296"><a href="#L-296"><span class="linenos"> 296</span></a> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span>
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</span><span id="L-297"><a href="#L-297"><span class="linenos"> 297</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_false</span><span class="p">(</span><span class="n">right</span><span class="p">))</span>
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</span><span id="L-298"><a href="#L-298"><span class="linenos"> 298</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">always_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span>
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</span><span id="L-299"><a href="#L-299"><span class="linenos"> 299</span></a> <span class="p">):</span>
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</span><span id="L-300"><a href="#L-300"><span class="linenos"> 300</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
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</span><span id="L-301"><a href="#L-301"><span class="linenos"> 301</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">):</span>
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</span><span id="L-302"><a href="#L-302"><span class="linenos"> 302</span></a> <span class="k">return</span> <span class="n">right</span>
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</span><span id="L-303"><a href="#L-303"><span class="linenos"> 303</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="L-304"><a href="#L-304"><span class="linenos"> 304</span></a> <span class="k">return</span> <span class="n">left</span>
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</span><span id="L-305"><a href="#L-305"><span class="linenos"> 305</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
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</span><span id="L-306"><a href="#L-306"><span class="linenos"> 306</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Xor</span><span class="p">):</span>
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</span><span id="L-307"><a href="#L-307"><span class="linenos"> 307</span></a> <span class="k">if</span> <span class="n">left</span> <span class="o">==</span> <span class="n">right</span><span class="p">:</span>
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</span><span id="L-308"><a href="#L-308"><span class="linenos"> 308</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-309"><a href="#L-309"><span class="linenos"> 309</span></a>
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</span><span id="L-310"><a href="#L-310"><span class="linenos"> 310</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
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</span><span id="L-311"><a href="#L-311"><span class="linenos"> 311</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_connectors</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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|
</span><span id="L-312"><a href="#L-312"><span class="linenos"> 312</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-313"><a href="#L-313"><span class="linenos"> 313</span></a>
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</span><span id="L-314"><a href="#L-314"><span class="linenos"> 314</span></a>
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</span><span id="L-315"><a href="#L-315"><span class="linenos"> 315</span></a><span class="n">LT_LTE</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">)</span>
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</span><span id="L-316"><a href="#L-316"><span class="linenos"> 316</span></a><span class="n">GT_GTE</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">)</span>
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|
</span><span id="L-317"><a href="#L-317"><span class="linenos"> 317</span></a>
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</span><span id="L-318"><a href="#L-318"><span class="linenos"> 318</span></a><span class="n">COMPARISONS</span> <span class="o">=</span> <span class="p">(</span>
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|
</span><span id="L-319"><a href="#L-319"><span class="linenos"> 319</span></a> <span class="o">*</span><span class="n">LT_LTE</span><span class="p">,</span>
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|
</span><span id="L-320"><a href="#L-320"><span class="linenos"> 320</span></a> <span class="o">*</span><span class="n">GT_GTE</span><span class="p">,</span>
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</span><span id="L-321"><a href="#L-321"><span class="linenos"> 321</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
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</span><span id="L-322"><a href="#L-322"><span class="linenos"> 322</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">,</span>
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</span><span id="L-323"><a href="#L-323"><span class="linenos"> 323</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">,</span>
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</span><span id="L-324"><a href="#L-324"><span class="linenos"> 324</span></a><span class="p">)</span>
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</span><span id="L-325"><a href="#L-325"><span class="linenos"> 325</span></a>
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</span><span id="L-326"><a href="#L-326"><span class="linenos"> 326</span></a><span class="n">INVERSE_COMPARISONS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span>
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</span><span id="L-327"><a href="#L-327"><span class="linenos"> 327</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span>
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</span><span id="L-328"><a href="#L-328"><span class="linenos"> 328</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span>
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</span><span id="L-329"><a href="#L-329"><span class="linenos"> 329</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">,</span>
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</span><span id="L-330"><a href="#L-330"><span class="linenos"> 330</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">,</span>
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|
</span><span id="L-331"><a href="#L-331"><span class="linenos"> 331</span></a><span class="p">}</span>
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</span><span id="L-332"><a href="#L-332"><span class="linenos"> 332</span></a>
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</span><span id="L-333"><a href="#L-333"><span class="linenos"> 333</span></a><span class="n">NONDETERMINISTIC</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Rand</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Randn</span><span class="p">)</span>
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</span><span id="L-334"><a href="#L-334"><span class="linenos"> 334</span></a><span class="n">AND_OR</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">)</span>
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|
</span><span id="L-335"><a href="#L-335"><span class="linenos"> 335</span></a>
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|
</span><span id="L-336"><a href="#L-336"><span class="linenos"> 336</span></a>
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|
</span><span id="L-337"><a href="#L-337"><span class="linenos"> 337</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
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|
</span><span id="L-338"><a href="#L-338"><span class="linenos"> 338</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">right</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span>
|
|
</span><span id="L-339"><a href="#L-339"><span class="linenos"> 339</span></a> <span class="n">ll</span><span class="p">,</span> <span class="n">lr</span> <span class="o">=</span> <span class="n">left</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()</span>
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</span><span id="L-340"><a href="#L-340"><span class="linenos"> 340</span></a> <span class="n">rl</span><span class="p">,</span> <span class="n">rr</span> <span class="o">=</span> <span class="n">right</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()</span>
|
|
</span><span id="L-341"><a href="#L-341"><span class="linenos"> 341</span></a>
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</span><span id="L-342"><a href="#L-342"><span class="linenos"> 342</span></a> <span class="n">largs</span> <span class="o">=</span> <span class="p">{</span><span class="n">ll</span><span class="p">,</span> <span class="n">lr</span><span class="p">}</span>
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</span><span id="L-343"><a href="#L-343"><span class="linenos"> 343</span></a> <span class="n">rargs</span> <span class="o">=</span> <span class="p">{</span><span class="n">rl</span><span class="p">,</span> <span class="n">rr</span><span class="p">}</span>
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</span><span id="L-344"><a href="#L-344"><span class="linenos"> 344</span></a>
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</span><span id="L-345"><a href="#L-345"><span class="linenos"> 345</span></a> <span class="n">matching</span> <span class="o">=</span> <span class="n">largs</span> <span class="o">&</span> <span class="n">rargs</span>
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</span><span id="L-346"><a href="#L-346"><span class="linenos"> 346</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">m</span> <span class="k">for</span> <span class="n">m</span> <span class="ow">in</span> <span class="n">matching</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">m</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">m</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="o">*</span><span class="n">NONDETERMINISTIC</span><span class="p">)}</span>
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</span><span id="L-347"><a href="#L-347"><span class="linenos"> 347</span></a>
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</span><span id="L-348"><a href="#L-348"><span class="linenos"> 348</span></a> <span class="k">if</span> <span class="n">matching</span> <span class="ow">and</span> <span class="n">columns</span><span class="p">:</span>
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</span><span id="L-349"><a href="#L-349"><span class="linenos"> 349</span></a> <span class="k">try</span><span class="p">:</span>
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</span><span id="L-350"><a href="#L-350"><span class="linenos"> 350</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">first</span><span class="p">(</span><span class="n">largs</span> <span class="o">-</span> <span class="n">columns</span><span class="p">)</span>
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</span><span id="L-351"><a href="#L-351"><span class="linenos"> 351</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">first</span><span class="p">(</span><span class="n">rargs</span> <span class="o">-</span> <span class="n">columns</span><span class="p">)</span>
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</span><span id="L-352"><a href="#L-352"><span class="linenos"> 352</span></a> <span class="k">except</span> <span class="ne">StopIteration</span><span class="p">:</span>
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</span><span id="L-353"><a href="#L-353"><span class="linenos"> 353</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-354"><a href="#L-354"><span class="linenos"> 354</span></a>
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</span><span id="L-355"><a href="#L-355"><span class="linenos"> 355</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="n">is_number</span> <span class="ow">and</span> <span class="n">r</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span>
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</span><span id="L-356"><a href="#L-356"><span class="linenos"> 356</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span>
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|
</span><span id="L-357"><a href="#L-357"><span class="linenos"> 357</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span>
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</span><span id="L-358"><a href="#L-358"><span class="linenos"> 358</span></a> <span class="k">elif</span> <span class="n">l</span><span class="o">.</span><span class="n">is_string</span> <span class="ow">and</span> <span class="n">r</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span>
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</span><span id="L-359"><a href="#L-359"><span class="linenos"> 359</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">name</span>
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</span><span id="L-360"><a href="#L-360"><span class="linenos"> 360</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">name</span>
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</span><span id="L-361"><a href="#L-361"><span class="linenos"> 361</span></a> <span class="k">else</span><span class="p">:</span>
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</span><span id="L-362"><a href="#L-362"><span class="linenos"> 362</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">l</span><span class="p">)</span>
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</span><span id="L-363"><a href="#L-363"><span class="linenos"> 363</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">l</span><span class="p">:</span>
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</span><span id="L-364"><a href="#L-364"><span class="linenos"> 364</span></a> <span class="k">return</span> <span class="kc">None</span>
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|
</span><span id="L-365"><a href="#L-365"><span class="linenos"> 365</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
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</span><span id="L-366"><a href="#L-366"><span class="linenos"> 366</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">r</span><span class="p">:</span>
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</span><span id="L-367"><a href="#L-367"><span class="linenos"> 367</span></a> <span class="k">return</span> <span class="kc">None</span>
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|
</span><span id="L-368"><a href="#L-368"><span class="linenos"> 368</span></a> <span class="c1"># python won't compare date and datetime, but many engines will upcast</span>
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</span><span id="L-369"><a href="#L-369"><span class="linenos"> 369</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
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</span><span id="L-370"><a href="#L-370"><span class="linenos"> 370</span></a>
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</span><span id="L-371"><a href="#L-371"><span class="linenos"> 371</span></a> <span class="k">for</span> <span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">av</span><span class="p">),</span> <span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">bv</span><span class="p">)</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(((</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="p">),</span> <span class="p">(</span><span class="n">right</span><span class="p">,</span> <span class="n">r</span><span class="p">))):</span>
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</span><span id="L-372"><a href="#L-372"><span class="linenos"> 372</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">):</span>
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</span><span id="L-373"><a href="#L-373"><span class="linenos"> 373</span></a> <span class="k">return</span> <span class="n">left</span> <span class="k">if</span> <span class="p">(</span><span class="n">av</span> <span class="o">></span> <span class="n">bv</span> <span class="k">if</span> <span class="n">or_</span> <span class="k">else</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span><span class="p">)</span> <span class="k">else</span> <span class="n">right</span>
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</span><span id="L-374"><a href="#L-374"><span class="linenos"> 374</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">):</span>
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|
</span><span id="L-375"><a href="#L-375"><span class="linenos"> 375</span></a> <span class="k">return</span> <span class="n">left</span> <span class="k">if</span> <span class="p">(</span><span class="n">av</span> <span class="o"><</span> <span class="n">bv</span> <span class="k">if</span> <span class="n">or_</span> <span class="k">else</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span><span class="p">)</span> <span class="k">else</span> <span class="n">right</span>
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</span><span id="L-376"><a href="#L-376"><span class="linenos"> 376</span></a>
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</span><span id="L-377"><a href="#L-377"><span class="linenos"> 377</span></a> <span class="c1"># we can't ever shortcut to true because the column could be null</span>
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|
</span><span id="L-378"><a href="#L-378"><span class="linenos"> 378</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">or_</span><span class="p">:</span>
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</span><span id="L-379"><a href="#L-379"><span class="linenos"> 379</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">):</span>
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</span><span id="L-380"><a href="#L-380"><span class="linenos"> 380</span></a> <span class="k">if</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span><span class="p">:</span>
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</span><span id="L-381"><a href="#L-381"><span class="linenos"> 381</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-382"><a href="#L-382"><span class="linenos"> 382</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">):</span>
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</span><span id="L-383"><a href="#L-383"><span class="linenos"> 383</span></a> <span class="k">if</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span><span class="p">:</span>
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</span><span id="L-384"><a href="#L-384"><span class="linenos"> 384</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-385"><a href="#L-385"><span class="linenos"> 385</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span>
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</span><span id="L-386"><a href="#L-386"><span class="linenos"> 386</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span>
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|
</span><span id="L-387"><a href="#L-387"><span class="linenos"> 387</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span>
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</span><span id="L-388"><a href="#L-388"><span class="linenos"> 388</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span>
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</span><span id="L-389"><a href="#L-389"><span class="linenos"> 389</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">></span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span>
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</span><span id="L-390"><a href="#L-390"><span class="linenos"> 390</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span>
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</span><span id="L-391"><a href="#L-391"><span class="linenos"> 391</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span>
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</span><span id="L-392"><a href="#L-392"><span class="linenos"> 392</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span>
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</span><span id="L-393"><a href="#L-393"><span class="linenos"> 393</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o"><</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span>
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</span><span id="L-394"><a href="#L-394"><span class="linenos"> 394</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span>
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</span><span id="L-395"><a href="#L-395"><span class="linenos"> 395</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">==</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span>
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</span><span id="L-396"><a href="#L-396"><span class="linenos"> 396</span></a> <span class="k">return</span> <span class="kc">None</span>
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</span><span id="L-397"><a href="#L-397"><span class="linenos"> 397</span></a>
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</span><span id="L-398"><a href="#L-398"><span class="linenos"> 398</span></a>
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</span><span id="L-399"><a href="#L-399"><span class="linenos"> 399</span></a><span class="k">def</span><span class="w"> </span><span class="nf">remove_complements</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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|
</span><span id="L-400"><a href="#L-400"><span class="linenos"> 400</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="L-401"><a href="#L-401"><span class="linenos"> 401</span></a><span class="sd"> Removing complements.</span>
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</span><span id="L-402"><a href="#L-402"><span class="linenos"> 402</span></a>
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</span><span id="L-403"><a href="#L-403"><span class="linenos"> 403</span></a><span class="sd"> A AND NOT A -> FALSE</span>
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</span><span id="L-404"><a href="#L-404"><span class="linenos"> 404</span></a><span class="sd"> A OR NOT A -> TRUE</span>
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</span><span id="L-405"><a href="#L-405"><span class="linenos"> 405</span></a><span class="sd"> """</span>
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</span><span id="L-406"><a href="#L-406"><span class="linenos"> 406</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">AND_OR</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span>
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</span><span id="L-407"><a href="#L-407"><span class="linenos"> 407</span></a> <span class="n">ops</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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</span><span id="L-408"><a href="#L-408"><span class="linenos"> 408</span></a> <span class="k">for</span> <span class="n">op</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
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|
</span><span id="L-409"><a href="#L-409"><span class="linenos"> 409</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">op</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
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|
</span><span id="L-410"><a href="#L-410"><span class="linenos"> 410</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
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</span><span id="L-411"><a href="#L-411"><span class="linenos"> 411</span></a>
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|
</span><span id="L-412"><a href="#L-412"><span class="linenos"> 412</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-413"><a href="#L-413"><span class="linenos"> 413</span></a>
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|
</span><span id="L-414"><a href="#L-414"><span class="linenos"> 414</span></a>
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|
</span><span id="L-415"><a href="#L-415"><span class="linenos"> 415</span></a><span class="k">def</span><span class="w"> </span><span class="nf">uniq_sort</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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|
</span><span id="L-416"><a href="#L-416"><span class="linenos"> 416</span></a><span class="w"> </span><span class="sd">"""</span>
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|
</span><span id="L-417"><a href="#L-417"><span class="linenos"> 417</span></a><span class="sd"> Uniq and sort a connector.</span>
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</span><span id="L-418"><a href="#L-418"><span class="linenos"> 418</span></a>
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</span><span id="L-419"><a href="#L-419"><span class="linenos"> 419</span></a><span class="sd"> C AND A AND B AND B -> A AND B AND C</span>
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</span><span id="L-420"><a href="#L-420"><span class="linenos"> 420</span></a><span class="sd"> """</span>
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</span><span id="L-421"><a href="#L-421"><span class="linenos"> 421</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span>
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</span><span id="L-422"><a href="#L-422"><span class="linenos"> 422</span></a> <span class="n">flattened</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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|
</span><span id="L-423"><a href="#L-423"><span class="linenos"> 423</span></a>
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|
</span><span id="L-424"><a href="#L-424"><span class="linenos"> 424</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Xor</span><span class="p">):</span>
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</span><span id="L-425"><a href="#L-425"><span class="linenos"> 425</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">xor</span>
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</span><span id="L-426"><a href="#L-426"><span class="linenos"> 426</span></a> <span class="c1"># Do not deduplicate XOR as A XOR A != A if A == True</span>
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</span><span id="L-427"><a href="#L-427"><span class="linenos"> 427</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="kc">None</span>
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|
</span><span id="L-428"><a href="#L-428"><span class="linenos"> 428</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">((</span><span class="n">gen</span><span class="p">(</span><span class="n">e</span><span class="p">),</span> <span class="n">e</span><span class="p">)</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">)</span>
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|
</span><span id="L-429"><a href="#L-429"><span class="linenos"> 429</span></a> <span class="k">else</span><span class="p">:</span>
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|
</span><span id="L-430"><a href="#L-430"><span class="linenos"> 430</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span>
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|
</span><span id="L-431"><a href="#L-431"><span class="linenos"> 431</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="p">{</span><span class="n">gen</span><span class="p">(</span><span class="n">e</span><span class="p">):</span> <span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">}</span>
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|
</span><span id="L-432"><a href="#L-432"><span class="linenos"> 432</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">deduped</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
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</span><span id="L-433"><a href="#L-433"><span class="linenos"> 433</span></a>
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</span><span id="L-434"><a href="#L-434"><span class="linenos"> 434</span></a> <span class="c1"># check if the operands are already sorted, if not sort them</span>
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|
</span><span id="L-435"><a href="#L-435"><span class="linenos"> 435</span></a> <span class="c1"># A AND C AND B -> A AND B AND C</span>
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</span><span id="L-436"><a href="#L-436"><span class="linenos"> 436</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">arr</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span>
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</span><span id="L-437"><a href="#L-437"><span class="linenos"> 437</span></a> <span class="k">if</span> <span class="n">sql</span> <span class="o"><</span> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span>
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</span><span id="L-438"><a href="#L-438"><span class="linenos"> 438</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="p">(</span><span class="n">e</span> <span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">arr</span><span class="p">)),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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</span><span id="L-439"><a href="#L-439"><span class="linenos"> 439</span></a> <span class="k">break</span>
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|
</span><span id="L-440"><a href="#L-440"><span class="linenos"> 440</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-441"><a href="#L-441"><span class="linenos"> 441</span></a> <span class="c1"># we didn't have to sort but maybe we need to dedup</span>
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</span><span id="L-442"><a href="#L-442"><span class="linenos"> 442</span></a> <span class="k">if</span> <span class="n">deduped</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">deduped</span><span class="p">)</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">flattened</span><span class="p">):</span>
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|
</span><span id="L-443"><a href="#L-443"><span class="linenos"> 443</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="n">deduped</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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</span><span id="L-444"><a href="#L-444"><span class="linenos"> 444</span></a>
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|
</span><span id="L-445"><a href="#L-445"><span class="linenos"> 445</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-446"><a href="#L-446"><span class="linenos"> 446</span></a>
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|
</span><span id="L-447"><a href="#L-447"><span class="linenos"> 447</span></a>
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</span><span id="L-448"><a href="#L-448"><span class="linenos"> 448</span></a><span class="k">def</span><span class="w"> </span><span class="nf">absorb_and_eliminate</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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|
</span><span id="L-449"><a href="#L-449"><span class="linenos"> 449</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="L-450"><a href="#L-450"><span class="linenos"> 450</span></a><span class="sd"> absorption:</span>
|
|
</span><span id="L-451"><a href="#L-451"><span class="linenos"> 451</span></a><span class="sd"> A AND (A OR B) -> A</span>
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|
</span><span id="L-452"><a href="#L-452"><span class="linenos"> 452</span></a><span class="sd"> A OR (A AND B) -> A</span>
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|
</span><span id="L-453"><a href="#L-453"><span class="linenos"> 453</span></a><span class="sd"> A AND (NOT A OR B) -> A AND B</span>
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|
</span><span id="L-454"><a href="#L-454"><span class="linenos"> 454</span></a><span class="sd"> A OR (NOT A AND B) -> A OR B</span>
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|
</span><span id="L-455"><a href="#L-455"><span class="linenos"> 455</span></a><span class="sd"> elimination:</span>
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|
</span><span id="L-456"><a href="#L-456"><span class="linenos"> 456</span></a><span class="sd"> (A AND B) OR (A AND NOT B) -> A</span>
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|
</span><span id="L-457"><a href="#L-457"><span class="linenos"> 457</span></a><span class="sd"> (A OR B) AND (A OR NOT B) -> A</span>
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|
</span><span id="L-458"><a href="#L-458"><span class="linenos"> 458</span></a><span class="sd"> """</span>
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|
</span><span id="L-459"><a href="#L-459"><span class="linenos"> 459</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">AND_OR</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span>
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|
</span><span id="L-460"><a href="#L-460"><span class="linenos"> 460</span></a> <span class="n">kind</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span>
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|
</span><span id="L-461"><a href="#L-461"><span class="linenos"> 461</span></a>
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|
</span><span id="L-462"><a href="#L-462"><span class="linenos"> 462</span></a> <span class="n">ops</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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|
</span><span id="L-463"><a href="#L-463"><span class="linenos"> 463</span></a>
|
|
</span><span id="L-464"><a href="#L-464"><span class="linenos"> 464</span></a> <span class="c1"># Initialize lookup tables:</span>
|
|
</span><span id="L-465"><a href="#L-465"><span class="linenos"> 465</span></a> <span class="c1"># Set of all operands, used to find complements for absorption.</span>
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|
</span><span id="L-466"><a href="#L-466"><span class="linenos"> 466</span></a> <span class="n">op_set</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
|
|
</span><span id="L-467"><a href="#L-467"><span class="linenos"> 467</span></a> <span class="c1"># Sub-operands, used to find subsets for absorption.</span>
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|
</span><span id="L-468"><a href="#L-468"><span class="linenos"> 468</span></a> <span class="n">subops</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span>
|
|
</span><span id="L-469"><a href="#L-469"><span class="linenos"> 469</span></a> <span class="c1"># Pairs of complements, used for elimination.</span>
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|
</span><span id="L-470"><a href="#L-470"><span class="linenos"> 470</span></a> <span class="n">pairs</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span>
|
|
</span><span id="L-471"><a href="#L-471"><span class="linenos"> 471</span></a>
|
|
</span><span id="L-472"><a href="#L-472"><span class="linenos"> 472</span></a> <span class="c1"># Populate the lookup tables</span>
|
|
</span><span id="L-473"><a href="#L-473"><span class="linenos"> 473</span></a> <span class="k">for</span> <span class="n">op</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
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|
</span><span id="L-474"><a href="#L-474"><span class="linenos"> 474</span></a> <span class="n">op_set</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">op</span><span class="p">)</span>
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|
</span><span id="L-475"><a href="#L-475"><span class="linenos"> 475</span></a>
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|
</span><span id="L-476"><a href="#L-476"><span class="linenos"> 476</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span>
|
|
</span><span id="L-477"><a href="#L-477"><span class="linenos"> 477</span></a> <span class="c1"># In cases like: A OR (A AND B)</span>
|
|
</span><span id="L-478"><a href="#L-478"><span class="linenos"> 478</span></a> <span class="c1"># Subop will be: ^</span>
|
|
</span><span id="L-479"><a href="#L-479"><span class="linenos"> 479</span></a> <span class="n">subops</span><span class="p">[</span><span class="n">op</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="n">op</span><span class="p">})</span>
|
|
</span><span id="L-480"><a href="#L-480"><span class="linenos"> 480</span></a> <span class="k">continue</span>
|
|
</span><span id="L-481"><a href="#L-481"><span class="linenos"> 481</span></a>
|
|
</span><span id="L-482"><a href="#L-482"><span class="linenos"> 482</span></a> <span class="c1"># In cases like: (A AND B) OR (A AND B AND C)</span>
|
|
</span><span id="L-483"><a href="#L-483"><span class="linenos"> 483</span></a> <span class="c1"># Subops will be: ^ ^</span>
|
|
</span><span id="L-484"><a href="#L-484"><span class="linenos"> 484</span></a> <span class="n">subset</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">op</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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|
</span><span id="L-485"><a href="#L-485"><span class="linenos"> 485</span></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">subset</span><span class="p">:</span>
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|
</span><span id="L-486"><a href="#L-486"><span class="linenos"> 486</span></a> <span class="n">subops</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">subset</span><span class="p">)</span>
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|
</span><span id="L-487"><a href="#L-487"><span class="linenos"> 487</span></a>
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|
</span><span id="L-488"><a href="#L-488"><span class="linenos"> 488</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">op</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span>
|
|
</span><span id="L-489"><a href="#L-489"><span class="linenos"> 489</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
|
|
</span><span id="L-490"><a href="#L-490"><span class="linenos"> 490</span></a> <span class="n">pairs</span><span class="p">[</span><span class="nb">frozenset</span><span class="p">((</span><span class="n">a</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">b</span><span class="p">))]</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">op</span><span class="p">,</span> <span class="n">b</span><span class="p">))</span>
|
|
</span><span id="L-491"><a href="#L-491"><span class="linenos"> 491</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
|
|
</span><span id="L-492"><a href="#L-492"><span class="linenos"> 492</span></a> <span class="n">pairs</span><span class="p">[</span><span class="nb">frozenset</span><span class="p">((</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span><span class="p">))]</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">op</span><span class="p">,</span> <span class="n">a</span><span class="p">))</span>
|
|
</span><span id="L-493"><a href="#L-493"><span class="linenos"> 493</span></a>
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|
</span><span id="L-494"><a href="#L-494"><span class="linenos"> 494</span></a> <span class="k">for</span> <span class="n">op</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
|
|
</span><span id="L-495"><a href="#L-495"><span class="linenos"> 495</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span>
|
|
</span><span id="L-496"><a href="#L-496"><span class="linenos"> 496</span></a> <span class="k">continue</span>
|
|
</span><span id="L-497"><a href="#L-497"><span class="linenos"> 497</span></a>
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|
</span><span id="L-498"><a href="#L-498"><span class="linenos"> 498</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">op</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span>
|
|
</span><span id="L-499"><a href="#L-499"><span class="linenos"> 499</span></a>
|
|
</span><span id="L-500"><a href="#L-500"><span class="linenos"> 500</span></a> <span class="c1"># Absorb</span>
|
|
</span><span id="L-501"><a href="#L-501"><span class="linenos"> 501</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">op_set</span><span class="p">:</span>
|
|
</span><span id="L-502"><a href="#L-502"><span class="linenos"> 502</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span>
|
|
</span><span id="L-503"><a href="#L-503"><span class="linenos"> 503</span></a> <span class="k">continue</span>
|
|
</span><span id="L-504"><a href="#L-504"><span class="linenos"> 504</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">op_set</span><span class="p">:</span>
|
|
</span><span id="L-505"><a href="#L-505"><span class="linenos"> 505</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span>
|
|
</span><span id="L-506"><a href="#L-506"><span class="linenos"> 506</span></a> <span class="k">continue</span>
|
|
</span><span id="L-507"><a href="#L-507"><span class="linenos"> 507</span></a> <span class="n">superset</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">op</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
|
|
</span><span id="L-508"><a href="#L-508"><span class="linenos"> 508</span></a> <span class="k">if</span> <span class="nb">any</span><span class="p">(</span><span class="nb">any</span><span class="p">(</span><span class="n">subset</span> <span class="o"><</span> <span class="n">superset</span> <span class="k">for</span> <span class="n">subset</span> <span class="ow">in</span> <span class="n">subops</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">superset</span><span class="p">):</span>
|
|
</span><span id="L-509"><a href="#L-509"><span class="linenos"> 509</span></a> <span class="n">op</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span>
|
|
</span><span id="L-510"><a href="#L-510"><span class="linenos"> 510</span></a> <span class="k">continue</span>
|
|
</span><span id="L-511"><a href="#L-511"><span class="linenos"> 511</span></a>
|
|
</span><span id="L-512"><a href="#L-512"><span class="linenos"> 512</span></a> <span class="c1"># Eliminate</span>
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</span><span id="L-513"><a href="#L-513"><span class="linenos"> 513</span></a> <span class="k">for</span> <span class="n">other</span><span class="p">,</span> <span class="n">complement</span> <span class="ow">in</span> <span class="n">pairs</span><span class="p">[</span><span class="nb">frozenset</span><span class="p">((</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">))]:</span>
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</span><span id="L-514"><a href="#L-514"><span class="linenos"> 514</span></a> <span class="n">op</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">complement</span><span class="p">)</span>
|
|
</span><span id="L-515"><a href="#L-515"><span class="linenos"> 515</span></a> <span class="n">other</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">complement</span><span class="p">)</span>
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|
</span><span id="L-516"><a href="#L-516"><span class="linenos"> 516</span></a>
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</span><span id="L-517"><a href="#L-517"><span class="linenos"> 517</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-518"><a href="#L-518"><span class="linenos"> 518</span></a>
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|
</span><span id="L-519"><a href="#L-519"><span class="linenos"> 519</span></a>
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</span><span id="L-520"><a href="#L-520"><span class="linenos"> 520</span></a><span class="k">def</span><span class="w"> </span><span class="nf">propagate_constants</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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</span><span id="L-521"><a href="#L-521"><span class="linenos"> 521</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="L-522"><a href="#L-522"><span class="linenos"> 522</span></a><span class="sd"> Propagate constants for conjunctions in DNF:</span>
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</span><span id="L-523"><a href="#L-523"><span class="linenos"> 523</span></a>
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</span><span id="L-524"><a href="#L-524"><span class="linenos"> 524</span></a><span class="sd"> SELECT * FROM t WHERE a = b AND b = 5 becomes</span>
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</span><span id="L-525"><a href="#L-525"><span class="linenos"> 525</span></a><span class="sd"> SELECT * FROM t WHERE a = 5 AND b = 5</span>
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</span><span id="L-526"><a href="#L-526"><span class="linenos"> 526</span></a>
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</span><span id="L-527"><a href="#L-527"><span class="linenos"> 527</span></a><span class="sd"> Reference: https://www.sqlite.org/optoverview.html</span>
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</span><span id="L-528"><a href="#L-528"><span class="linenos"> 528</span></a><span class="sd"> """</span>
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</span><span id="L-529"><a href="#L-529"><span class="linenos"> 529</span></a>
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</span><span id="L-530"><a href="#L-530"><span class="linenos"> 530</span></a> <span class="k">if</span> <span class="p">(</span>
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</span><span id="L-531"><a href="#L-531"><span class="linenos"> 531</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span>
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</span><span id="L-532"><a href="#L-532"><span class="linenos"> 532</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">)</span>
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</span><span id="L-533"><a href="#L-533"><span class="linenos"> 533</span></a> <span class="ow">and</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">normalize</span><span class="o">.</span><span class="n">normalized</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">dnf</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
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</span><span id="L-534"><a href="#L-534"><span class="linenos"> 534</span></a> <span class="p">):</span>
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</span><span id="L-535"><a href="#L-535"><span class="linenos"> 535</span></a> <span class="n">constant_mapping</span> <span class="o">=</span> <span class="p">{}</span>
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|
</span><span id="L-536"><a href="#L-536"><span class="linenos"> 536</span></a> <span class="k">for</span> <span class="n">expr</span> <span class="ow">in</span> <span class="n">walk_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">prune</span><span class="o">=</span><span class="k">lambda</span> <span class="n">node</span><span class="p">:</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)):</span>
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</span><span id="L-537"><a href="#L-537"><span class="linenos"> 537</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span>
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</span><span id="L-538"><a href="#L-538"><span class="linenos"> 538</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expr</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expr</span><span class="o">.</span><span class="n">right</span>
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</span><span id="L-539"><a href="#L-539"><span class="linenos"> 539</span></a>
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</span><span id="L-540"><a href="#L-540"><span class="linenos"> 540</span></a> <span class="c1"># TODO: create a helper that can be used to detect nested literal expressions such</span>
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</span><span id="L-541"><a href="#L-541"><span class="linenos"> 541</span></a> <span class="c1"># as CAST(123456 AS BIGINT), since we usually want to treat those as literals too</span>
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</span><span id="L-542"><a href="#L-542"><span class="linenos"> 542</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span>
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</span><span id="L-543"><a href="#L-543"><span class="linenos"> 543</span></a> <span class="n">constant_mapping</span><span class="p">[</span><span class="n">l</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">r</span><span class="p">)</span>
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</span><span id="L-544"><a href="#L-544"><span class="linenos"> 544</span></a>
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</span><span id="L-545"><a href="#L-545"><span class="linenos"> 545</span></a> <span class="k">if</span> <span class="n">constant_mapping</span><span class="p">:</span>
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</span><span id="L-546"><a href="#L-546"><span class="linenos"> 546</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">):</span>
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</span><span id="L-547"><a href="#L-547"><span class="linenos"> 547</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span>
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</span><span id="L-548"><a href="#L-548"><span class="linenos"> 548</span></a> <span class="n">column_id</span><span class="p">,</span> <span class="n">constant</span> <span class="o">=</span> <span class="n">constant_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
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</span><span id="L-549"><a href="#L-549"><span class="linenos"> 549</span></a> <span class="k">if</span> <span class="p">(</span>
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</span><span id="L-550"><a href="#L-550"><span class="linenos"> 550</span></a> <span class="n">column_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
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</span><span id="L-551"><a href="#L-551"><span class="linenos"> 551</span></a> <span class="ow">and</span> <span class="nb">id</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="o">!=</span> <span class="n">column_id</span>
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</span><span id="L-552"><a href="#L-552"><span class="linenos"> 552</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">))</span>
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</span><span id="L-553"><a href="#L-553"><span class="linenos"> 553</span></a> <span class="p">):</span>
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</span><span id="L-554"><a href="#L-554"><span class="linenos"> 554</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">constant</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
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</span><span id="L-555"><a href="#L-555"><span class="linenos"> 555</span></a>
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</span><span id="L-556"><a href="#L-556"><span class="linenos"> 556</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-557"><a href="#L-557"><span class="linenos"> 557</span></a>
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|
</span><span id="L-558"><a href="#L-558"><span class="linenos"> 558</span></a>
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</span><span id="L-559"><a href="#L-559"><span class="linenos"> 559</span></a><span class="n">INVERSE_DATE_OPS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span>
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</span><span id="L-560"><a href="#L-560"><span class="linenos"> 560</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span>
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</span><span id="L-561"><a href="#L-561"><span class="linenos"> 561</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateSub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span>
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</span><span id="L-562"><a href="#L-562"><span class="linenos"> 562</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeAdd</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span>
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</span><span id="L-563"><a href="#L-563"><span class="linenos"> 563</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeSub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span>
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</span><span id="L-564"><a href="#L-564"><span class="linenos"> 564</span></a><span class="p">}</span>
|
|
</span><span id="L-565"><a href="#L-565"><span class="linenos"> 565</span></a>
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</span><span id="L-566"><a href="#L-566"><span class="linenos"> 566</span></a><span class="n">INVERSE_OPS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span>
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</span><span id="L-567"><a href="#L-567"><span class="linenos"> 567</span></a> <span class="o">**</span><span class="n">INVERSE_DATE_OPS</span><span class="p">,</span>
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</span><span id="L-568"><a href="#L-568"><span class="linenos"> 568</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span>
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</span><span id="L-569"><a href="#L-569"><span class="linenos"> 569</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span>
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</span><span id="L-570"><a href="#L-570"><span class="linenos"> 570</span></a><span class="p">}</span>
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</span><span id="L-571"><a href="#L-571"><span class="linenos"> 571</span></a>
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</span><span id="L-572"><a href="#L-572"><span class="linenos"> 572</span></a>
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|
</span><span id="L-573"><a href="#L-573"><span class="linenos"> 573</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_is_number</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
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</span><span id="L-574"><a href="#L-574"><span class="linenos"> 574</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">is_number</span>
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</span><span id="L-575"><a href="#L-575"><span class="linenos"> 575</span></a>
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</span><span id="L-576"><a href="#L-576"><span class="linenos"> 576</span></a>
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</span><span id="L-577"><a href="#L-577"><span class="linenos"> 577</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_is_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
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</span><span id="L-578"><a href="#L-578"><span class="linenos"> 578</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">)</span> <span class="ow">and</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
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</span><span id="L-579"><a href="#L-579"><span class="linenos"> 579</span></a>
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</span><span id="L-580"><a href="#L-580"><span class="linenos"> 580</span></a>
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</span><span id="L-581"><a href="#L-581"><span class="linenos"> 581</span></a><span class="nd">@catch</span><span class="p">(</span><span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="n">UnsupportedUnit</span><span class="p">)</span>
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</span><span id="L-582"><a href="#L-582"><span class="linenos"> 582</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_equality</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
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</span><span id="L-583"><a href="#L-583"><span class="linenos"> 583</span></a><span class="w"> </span><span class="sd">"""</span>
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|
</span><span id="L-584"><a href="#L-584"><span class="linenos"> 584</span></a><span class="sd"> Use the subtraction and addition properties of equality to simplify expressions:</span>
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</span><span id="L-585"><a href="#L-585"><span class="linenos"> 585</span></a>
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</span><span id="L-586"><a href="#L-586"><span class="linenos"> 586</span></a><span class="sd"> x + 1 = 3 becomes x = 2</span>
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</span><span id="L-587"><a href="#L-587"><span class="linenos"> 587</span></a>
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</span><span id="L-588"><a href="#L-588"><span class="linenos"> 588</span></a><span class="sd"> There are two binary operations in the above expression: + and =</span>
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</span><span id="L-589"><a href="#L-589"><span class="linenos"> 589</span></a><span class="sd"> Here's how we reference all the operands in the code below:</span>
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</span><span id="L-590"><a href="#L-590"><span class="linenos"> 590</span></a>
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</span><span id="L-591"><a href="#L-591"><span class="linenos"> 591</span></a><span class="sd"> l r</span>
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</span><span id="L-592"><a href="#L-592"><span class="linenos"> 592</span></a><span class="sd"> x + 1 = 3</span>
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</span><span id="L-593"><a href="#L-593"><span class="linenos"> 593</span></a><span class="sd"> a b</span>
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</span><span id="L-594"><a href="#L-594"><span class="linenos"> 594</span></a><span class="sd"> """</span>
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</span><span id="L-595"><a href="#L-595"><span class="linenos"> 595</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span>
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</span><span id="L-596"><a href="#L-596"><span class="linenos"> 596</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span>
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</span><span id="L-597"><a href="#L-597"><span class="linenos"> 597</span></a>
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</span><span id="L-598"><a href="#L-598"><span class="linenos"> 598</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">INVERSE_OPS</span><span class="p">:</span>
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</span><span id="L-599"><a href="#L-599"><span class="linenos"> 599</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-600"><a href="#L-600"><span class="linenos"> 600</span></a>
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</span><span id="L-601"><a href="#L-601"><span class="linenos"> 601</span></a> <span class="k">if</span> <span class="n">r</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span>
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</span><span id="L-602"><a href="#L-602"><span class="linenos"> 602</span></a> <span class="n">a_predicate</span> <span class="o">=</span> <span class="n">_is_number</span>
|
|
</span><span id="L-603"><a href="#L-603"><span class="linenos"> 603</span></a> <span class="n">b_predicate</span> <span class="o">=</span> <span class="n">_is_number</span>
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</span><span id="L-604"><a href="#L-604"><span class="linenos"> 604</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">r</span><span class="p">):</span>
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</span><span id="L-605"><a href="#L-605"><span class="linenos"> 605</span></a> <span class="n">a_predicate</span> <span class="o">=</span> <span class="n">_is_date_literal</span>
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|
</span><span id="L-606"><a href="#L-606"><span class="linenos"> 606</span></a> <span class="n">b_predicate</span> <span class="o">=</span> <span class="n">_is_interval</span>
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|
</span><span id="L-607"><a href="#L-607"><span class="linenos"> 607</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-608"><a href="#L-608"><span class="linenos"> 608</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-609"><a href="#L-609"><span class="linenos"> 609</span></a>
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|
</span><span id="L-610"><a href="#L-610"><span class="linenos"> 610</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_DATE_OPS</span><span class="p">:</span>
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|
</span><span id="L-611"><a href="#L-611"><span class="linenos"> 611</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">IntervalOp</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span>
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|
</span><span id="L-612"><a href="#L-612"><span class="linenos"> 612</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">this</span>
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|
</span><span id="L-613"><a href="#L-613"><span class="linenos"> 613</span></a> <span class="n">b</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">interval</span><span class="p">()</span>
|
|
</span><span id="L-614"><a href="#L-614"><span class="linenos"> 614</span></a> <span class="k">else</span><span class="p">:</span>
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|
</span><span id="L-615"><a href="#L-615"><span class="linenos"> 615</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span>
|
|
</span><span id="L-616"><a href="#L-616"><span class="linenos"> 616</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="o">.</span><span class="n">right</span>
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|
</span><span id="L-617"><a href="#L-617"><span class="linenos"> 617</span></a>
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|
</span><span id="L-618"><a href="#L-618"><span class="linenos"> 618</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">a_predicate</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b_predicate</span><span class="p">(</span><span class="n">b</span><span class="p">):</span>
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|
</span><span id="L-619"><a href="#L-619"><span class="linenos"> 619</span></a> <span class="k">pass</span>
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|
</span><span id="L-620"><a href="#L-620"><span class="linenos"> 620</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="n">a_predicate</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b_predicate</span><span class="p">(</span><span class="n">a</span><span class="p">):</span>
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|
</span><span id="L-621"><a href="#L-621"><span class="linenos"> 621</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">b</span><span class="p">,</span> <span class="n">a</span>
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|
</span><span id="L-622"><a href="#L-622"><span class="linenos"> 622</span></a> <span class="k">else</span><span class="p">:</span>
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</span><span id="L-623"><a href="#L-623"><span class="linenos"> 623</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-624"><a href="#L-624"><span class="linenos"> 624</span></a>
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|
</span><span id="L-625"><a href="#L-625"><span class="linenos"> 625</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span>
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|
</span><span id="L-626"><a href="#L-626"><span class="linenos"> 626</span></a> <span class="n">this</span><span class="o">=</span><span class="n">a</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">INVERSE_OPS</span><span class="p">[</span><span class="n">l</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">r</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">b</span><span class="p">)</span>
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|
</span><span id="L-627"><a href="#L-627"><span class="linenos"> 627</span></a> <span class="p">)</span>
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|
</span><span id="L-628"><a href="#L-628"><span class="linenos"> 628</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-629"><a href="#L-629"><span class="linenos"> 629</span></a>
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|
</span><span id="L-630"><a href="#L-630"><span class="linenos"> 630</span></a>
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|
</span><span id="L-631"><a href="#L-631"><span class="linenos"> 631</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_literals</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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|
</span><span id="L-632"><a href="#L-632"><span class="linenos"> 632</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
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|
</span><span id="L-633"><a href="#L-633"><span class="linenos"> 633</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_binary</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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|
</span><span id="L-634"><a href="#L-634"><span class="linenos"> 634</span></a>
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|
</span><span id="L-635"><a href="#L-635"><span class="linenos"> 635</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">):</span>
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|
</span><span id="L-636"><a href="#L-636"><span class="linenos"> 636</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-637"><a href="#L-637"><span class="linenos"> 637</span></a>
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|
</span><span id="L-638"><a href="#L-638"><span class="linenos"> 638</span></a> <span class="k">if</span> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">in</span> <span class="n">INVERSE_DATE_OPS</span><span class="p">:</span>
|
|
</span><span id="L-639"><a href="#L-639"><span class="linenos"> 639</span></a> <span class="k">return</span> <span class="n">_simplify_binary</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">interval</span><span class="p">())</span> <span class="ow">or</span> <span class="n">expression</span>
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|
</span><span id="L-640"><a href="#L-640"><span class="linenos"> 640</span></a>
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|
</span><span id="L-641"><a href="#L-641"><span class="linenos"> 641</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-642"><a href="#L-642"><span class="linenos"> 642</span></a>
|
|
</span><span id="L-643"><a href="#L-643"><span class="linenos"> 643</span></a>
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|
</span><span id="L-644"><a href="#L-644"><span class="linenos"> 644</span></a><span class="n">NULL_OK</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">NullSafeEQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NullSafeNEQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">PropertyEQ</span><span class="p">)</span>
|
|
</span><span id="L-645"><a href="#L-645"><span class="linenos"> 645</span></a>
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|
</span><span id="L-646"><a href="#L-646"><span class="linenos"> 646</span></a>
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|
</span><span id="L-647"><a href="#L-647"><span class="linenos"> 647</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_simplify_integer_cast</span><span class="p">(</span><span class="n">expr</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
|
|
</span><span id="L-648"><a href="#L-648"><span class="linenos"> 648</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span>
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|
</span><span id="L-649"><a href="#L-649"><span class="linenos"> 649</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">_simplify_integer_cast</span><span class="p">(</span><span class="n">expr</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="L-650"><a href="#L-650"><span class="linenos"> 650</span></a> <span class="k">else</span><span class="p">:</span>
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|
</span><span id="L-651"><a href="#L-651"><span class="linenos"> 651</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expr</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-652"><a href="#L-652"><span class="linenos"> 652</span></a>
|
|
</span><span id="L-653"><a href="#L-653"><span class="linenos"> 653</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">)</span> <span class="ow">and</span> <span class="n">this</span><span class="o">.</span><span class="n">is_int</span><span class="p">:</span>
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|
</span><span id="L-654"><a href="#L-654"><span class="linenos"> 654</span></a> <span class="n">num</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span>
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|
</span><span id="L-655"><a href="#L-655"><span class="linenos"> 655</span></a>
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|
</span><span id="L-656"><a href="#L-656"><span class="linenos"> 656</span></a> <span class="c1"># Remove the (up)cast from small (byte-sized) integers in predicates which is side-effect free. Downcasts on any</span>
|
|
</span><span id="L-657"><a href="#L-657"><span class="linenos"> 657</span></a> <span class="c1"># integer type might cause overflow, thus the cast cannot be eliminated and the behavior is</span>
|
|
</span><span id="L-658"><a href="#L-658"><span class="linenos"> 658</span></a> <span class="c1"># engine-dependent</span>
|
|
</span><span id="L-659"><a href="#L-659"><span class="linenos"> 659</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="L-660"><a href="#L-660"><span class="linenos"> 660</span></a> <span class="n">TINYINT_MIN</span> <span class="o"><=</span> <span class="n">num</span> <span class="o"><=</span> <span class="n">TINYINT_MAX</span> <span class="ow">and</span> <span class="n">expr</span><span class="o">.</span><span class="n">to</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">SIGNED_INTEGER_TYPES</span>
|
|
</span><span id="L-661"><a href="#L-661"><span class="linenos"> 661</span></a> <span class="p">)</span> <span class="ow">or</span> <span class="p">(</span>
|
|
</span><span id="L-662"><a href="#L-662"><span class="linenos"> 662</span></a> <span class="n">UTINYINT_MIN</span> <span class="o"><=</span> <span class="n">num</span> <span class="o"><=</span> <span class="n">UTINYINT_MAX</span>
|
|
</span><span id="L-663"><a href="#L-663"><span class="linenos"> 663</span></a> <span class="ow">and</span> <span class="n">expr</span><span class="o">.</span><span class="n">to</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">UNSIGNED_INTEGER_TYPES</span>
|
|
</span><span id="L-664"><a href="#L-664"><span class="linenos"> 664</span></a> <span class="p">):</span>
|
|
</span><span id="L-665"><a href="#L-665"><span class="linenos"> 665</span></a> <span class="k">return</span> <span class="n">this</span>
|
|
</span><span id="L-666"><a href="#L-666"><span class="linenos"> 666</span></a>
|
|
</span><span id="L-667"><a href="#L-667"><span class="linenos"> 667</span></a> <span class="k">return</span> <span class="n">expr</span>
|
|
</span><span id="L-668"><a href="#L-668"><span class="linenos"> 668</span></a>
|
|
</span><span id="L-669"><a href="#L-669"><span class="linenos"> 669</span></a>
|
|
</span><span id="L-670"><a href="#L-670"><span class="linenos"> 670</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_simplify_binary</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
|
|
</span><span id="L-671"><a href="#L-671"><span class="linenos"> 671</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span>
|
|
</span><span id="L-672"><a href="#L-672"><span class="linenos"> 672</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">_simplify_integer_cast</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
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</span><span id="L-673"><a href="#L-673"><span class="linenos"> 673</span></a> <span class="n">b</span> <span class="o">=</span> <span class="n">_simplify_integer_cast</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-674"><a href="#L-674"><span class="linenos"> 674</span></a>
|
|
</span><span id="L-675"><a href="#L-675"><span class="linenos"> 675</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">):</span>
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|
</span><span id="L-676"><a href="#L-676"><span class="linenos"> 676</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
|
|
</span><span id="L-677"><a href="#L-677"><span class="linenos"> 677</span></a> <span class="n">c</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span>
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|
</span><span id="L-678"><a href="#L-678"><span class="linenos"> 678</span></a> <span class="n">not_</span> <span class="o">=</span> <span class="kc">True</span>
|
|
</span><span id="L-679"><a href="#L-679"><span class="linenos"> 679</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-680"><a href="#L-680"><span class="linenos"> 680</span></a> <span class="n">c</span> <span class="o">=</span> <span class="n">b</span>
|
|
</span><span id="L-681"><a href="#L-681"><span class="linenos"> 681</span></a> <span class="n">not_</span> <span class="o">=</span> <span class="kc">False</span>
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|
</span><span id="L-682"><a href="#L-682"><span class="linenos"> 682</span></a>
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|
</span><span id="L-683"><a href="#L-683"><span class="linenos"> 683</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">c</span><span class="p">):</span>
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|
</span><span id="L-684"><a href="#L-684"><span class="linenos"> 684</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span>
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|
</span><span id="L-685"><a href="#L-685"><span class="linenos"> 685</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">not_</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
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</span><span id="L-686"><a href="#L-686"><span class="linenos"> 686</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">):</span>
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|
</span><span id="L-687"><a href="#L-687"><span class="linenos"> 687</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">not_</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
|
|
</span><span id="L-688"><a href="#L-688"><span class="linenos"> 688</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">NULL_OK</span><span class="p">):</span>
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|
</span><span id="L-689"><a href="#L-689"><span class="linenos"> 689</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-690"><a href="#L-690"><span class="linenos"> 690</span></a> <span class="k">elif</span> <span class="n">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">b</span><span class="p">):</span>
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|
</span><span id="L-691"><a href="#L-691"><span class="linenos"> 691</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="L-692"><a href="#L-692"><span class="linenos"> 692</span></a>
|
|
</span><span id="L-693"><a href="#L-693"><span class="linenos"> 693</span></a> <span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">is_number</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span>
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|
</span><span id="L-694"><a href="#L-694"><span class="linenos"> 694</span></a> <span class="n">num_a</span> <span class="o">=</span> <span class="n">a</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span>
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|
</span><span id="L-695"><a href="#L-695"><span class="linenos"> 695</span></a> <span class="n">num_b</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span>
|
|
</span><span id="L-696"><a href="#L-696"><span class="linenos"> 696</span></a>
|
|
</span><span id="L-697"><a href="#L-697"><span class="linenos"> 697</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span>
|
|
</span><span id="L-698"><a href="#L-698"><span class="linenos"> 698</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">num_a</span> <span class="o">+</span> <span class="n">num_b</span><span class="p">)</span>
|
|
</span><span id="L-699"><a href="#L-699"><span class="linenos"> 699</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">):</span>
|
|
</span><span id="L-700"><a href="#L-700"><span class="linenos"> 700</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">num_a</span> <span class="o">*</span> <span class="n">num_b</span><span class="p">)</span>
|
|
</span><span id="L-701"><a href="#L-701"><span class="linenos"> 701</span></a>
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|
</span><span id="L-702"><a href="#L-702"><span class="linenos"> 702</span></a> <span class="c1"># We only simplify Sub, Div if a and b have the same parent because they're not associative</span>
|
|
</span><span id="L-703"><a href="#L-703"><span class="linenos"> 703</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">):</span>
|
|
</span><span id="L-704"><a href="#L-704"><span class="linenos"> 704</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">num_a</span> <span class="o">-</span> <span class="n">num_b</span><span class="p">)</span> <span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">parent</span> <span class="ow">is</span> <span class="n">b</span><span class="o">.</span><span class="n">parent</span> <span class="k">else</span> <span class="kc">None</span>
|
|
</span><span id="L-705"><a href="#L-705"><span class="linenos"> 705</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">):</span>
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|
</span><span id="L-706"><a href="#L-706"><span class="linenos"> 706</span></a> <span class="c1"># engines have differing int div behavior so intdiv is not safe</span>
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|
</span><span id="L-707"><a href="#L-707"><span class="linenos"> 707</span></a> <span class="k">if</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">num_a</span><span class="p">,</span> <span class="nb">int</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">num_b</span><span class="p">,</span> <span class="nb">int</span><span class="p">))</span> <span class="ow">or</span> <span class="n">a</span><span class="o">.</span><span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">b</span><span class="o">.</span><span class="n">parent</span><span class="p">:</span>
|
|
</span><span id="L-708"><a href="#L-708"><span class="linenos"> 708</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-709"><a href="#L-709"><span class="linenos"> 709</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">num_a</span> <span class="o">/</span> <span class="n">num_b</span><span class="p">)</span>
|
|
</span><span id="L-710"><a href="#L-710"><span class="linenos"> 710</span></a>
|
|
</span><span id="L-711"><a href="#L-711"><span class="linenos"> 711</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">num_a</span><span class="p">,</span> <span class="n">num_b</span><span class="p">)</span>
|
|
</span><span id="L-712"><a href="#L-712"><span class="linenos"> 712</span></a>
|
|
</span><span id="L-713"><a href="#L-713"><span class="linenos"> 713</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span>
|
|
</span><span id="L-714"><a href="#L-714"><span class="linenos"> 714</span></a> <span class="k">return</span> <span class="n">boolean</span>
|
|
</span><span id="L-715"><a href="#L-715"><span class="linenos"> 715</span></a> <span class="k">elif</span> <span class="n">a</span><span class="o">.</span><span class="n">is_string</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span>
|
|
</span><span id="L-716"><a href="#L-716"><span class="linenos"> 716</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="L-717"><a href="#L-717"><span class="linenos"> 717</span></a>
|
|
</span><span id="L-718"><a href="#L-718"><span class="linenos"> 718</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span>
|
|
</span><span id="L-719"><a href="#L-719"><span class="linenos"> 719</span></a> <span class="k">return</span> <span class="n">boolean</span>
|
|
</span><span id="L-720"><a href="#L-720"><span class="linenos"> 720</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">):</span>
|
|
</span><span id="L-721"><a href="#L-721"><span class="linenos"> 721</span></a> <span class="n">date</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-722"><a href="#L-722"><span class="linenos"> 722</span></a> <span class="k">if</span> <span class="n">date</span> <span class="ow">and</span> <span class="n">b</span><span class="p">:</span>
|
|
</span><span id="L-723"><a href="#L-723"><span class="linenos"> 723</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeAdd</span><span class="p">)):</span>
|
|
</span><span id="L-724"><a href="#L-724"><span class="linenos"> 724</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date</span> <span class="o">+</span> <span class="n">b</span><span class="p">,</span> <span class="n">extract_type</span><span class="p">(</span><span class="n">a</span><span class="p">))</span>
|
|
</span><span id="L-725"><a href="#L-725"><span class="linenos"> 725</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DateSub</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeSub</span><span class="p">)):</span>
|
|
</span><span id="L-726"><a href="#L-726"><span class="linenos"> 726</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date</span> <span class="o">-</span> <span class="n">b</span><span class="p">,</span> <span class="n">extract_type</span><span class="p">(</span><span class="n">a</span><span class="p">))</span>
|
|
</span><span id="L-727"><a href="#L-727"><span class="linenos"> 727</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">)</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">b</span><span class="p">):</span>
|
|
</span><span id="L-728"><a href="#L-728"><span class="linenos"> 728</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-729"><a href="#L-729"><span class="linenos"> 729</span></a> <span class="c1"># you cannot subtract a date from an interval</span>
|
|
</span><span id="L-730"><a href="#L-730"><span class="linenos"> 730</span></a> <span class="k">if</span> <span class="n">a</span> <span class="ow">and</span> <span class="n">b</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span>
|
|
</span><span id="L-731"><a href="#L-731"><span class="linenos"> 731</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">date</span><span class="p">,</span> <span class="n">extract_type</span><span class="p">(</span><span class="n">b</span><span class="p">))</span>
|
|
</span><span id="L-732"><a href="#L-732"><span class="linenos"> 732</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">b</span><span class="p">):</span>
|
|
</span><span id="L-733"><a href="#L-733"><span class="linenos"> 733</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">):</span>
|
|
</span><span id="L-734"><a href="#L-734"><span class="linenos"> 734</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-735"><a href="#L-735"><span class="linenos"> 735</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-736"><a href="#L-736"><span class="linenos"> 736</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span>
|
|
</span><span id="L-737"><a href="#L-737"><span class="linenos"> 737</span></a> <span class="k">return</span> <span class="n">boolean</span>
|
|
</span><span id="L-738"><a href="#L-738"><span class="linenos"> 738</span></a>
|
|
</span><span id="L-739"><a href="#L-739"><span class="linenos"> 739</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-740"><a href="#L-740"><span class="linenos"> 740</span></a>
|
|
</span><span id="L-741"><a href="#L-741"><span class="linenos"> 741</span></a>
|
|
</span><span id="L-742"><a href="#L-742"><span class="linenos"> 742</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_parens</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-743"><a href="#L-743"><span class="linenos"> 743</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span>
|
|
</span><span id="L-744"><a href="#L-744"><span class="linenos"> 744</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-745"><a href="#L-745"><span class="linenos"> 745</span></a>
|
|
</span><span id="L-746"><a href="#L-746"><span class="linenos"> 746</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-747"><a href="#L-747"><span class="linenos"> 747</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span>
|
|
</span><span id="L-748"><a href="#L-748"><span class="linenos"> 748</span></a> <span class="n">parent_is_predicate</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span>
|
|
</span><span id="L-749"><a href="#L-749"><span class="linenos"> 749</span></a>
|
|
</span><span id="L-750"><a href="#L-750"><span class="linenos"> 750</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="L-751"><a href="#L-751"><span class="linenos"> 751</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
|
|
</span><span id="L-752"><a href="#L-752"><span class="linenos"> 752</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">SubqueryPredicate</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Bracket</span><span class="p">))</span>
|
|
</span><span id="L-753"><a href="#L-753"><span class="linenos"> 753</span></a> <span class="ow">and</span> <span class="p">(</span>
|
|
</span><span id="L-754"><a href="#L-754"><span class="linenos"> 754</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span>
|
|
</span><span id="L-755"><a href="#L-755"><span class="linenos"> 755</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span>
|
|
</span><span id="L-756"><a href="#L-756"><span class="linenos"> 756</span></a> <span class="ow">or</span> <span class="p">(</span>
|
|
</span><span id="L-757"><a href="#L-757"><span class="linenos"> 757</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span>
|
|
</span><span id="L-758"><a href="#L-758"><span class="linenos"> 758</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">))</span> <span class="ow">and</span> <span class="n">parent_is_predicate</span><span class="p">)</span>
|
|
</span><span id="L-759"><a href="#L-759"><span class="linenos"> 759</span></a> <span class="p">)</span>
|
|
</span><span id="L-760"><a href="#L-760"><span class="linenos"> 760</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">parent_is_predicate</span><span class="p">)</span>
|
|
</span><span id="L-761"><a href="#L-761"><span class="linenos"> 761</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">))</span>
|
|
</span><span id="L-762"><a href="#L-762"><span class="linenos"> 762</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">))</span>
|
|
</span><span id="L-763"><a href="#L-763"><span class="linenos"> 763</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)))</span>
|
|
</span><span id="L-764"><a href="#L-764"><span class="linenos"> 764</span></a> <span class="p">)</span>
|
|
</span><span id="L-765"><a href="#L-765"><span class="linenos"> 765</span></a> <span class="p">):</span>
|
|
</span><span id="L-766"><a href="#L-766"><span class="linenos"> 766</span></a> <span class="k">return</span> <span class="n">this</span>
|
|
</span><span id="L-767"><a href="#L-767"><span class="linenos"> 767</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-768"><a href="#L-768"><span class="linenos"> 768</span></a>
|
|
</span><span id="L-769"><a href="#L-769"><span class="linenos"> 769</span></a>
|
|
</span><span id="L-770"><a href="#L-770"><span class="linenos"> 770</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_is_nonnull_constant</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
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</span><span id="L-771"><a href="#L-771"><span class="linenos"> 771</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NONNULL_CONSTANTS</span><span class="p">)</span> <span class="ow">or</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span><span id="L-772"><a href="#L-772"><span class="linenos"> 772</span></a>
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|
</span><span id="L-773"><a href="#L-773"><span class="linenos"> 773</span></a>
|
|
</span><span id="L-774"><a href="#L-774"><span class="linenos"> 774</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_is_constant</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
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|
</span><span id="L-775"><a href="#L-775"><span class="linenos"> 775</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">CONSTANTS</span><span class="p">)</span> <span class="ow">or</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
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|
</span><span id="L-776"><a href="#L-776"><span class="linenos"> 776</span></a>
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|
</span><span id="L-777"><a href="#L-777"><span class="linenos"> 777</span></a>
|
|
</span><span id="L-778"><a href="#L-778"><span class="linenos"> 778</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_coalesce</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
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|
</span><span id="L-779"><a href="#L-779"><span class="linenos"> 779</span></a> <span class="c1"># COALESCE(x) -> x</span>
|
|
</span><span id="L-780"><a href="#L-780"><span class="linenos"> 780</span></a> <span class="k">if</span> <span class="p">(</span>
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|
</span><span id="L-781"><a href="#L-781"><span class="linenos"> 781</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">)</span>
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|
</span><span id="L-782"><a href="#L-782"><span class="linenos"> 782</span></a> <span class="ow">and</span> <span class="p">(</span><span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> <span class="ow">or</span> <span class="n">_is_nonnull_constant</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
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|
</span><span id="L-783"><a href="#L-783"><span class="linenos"> 783</span></a> <span class="c1"># COALESCE is also used as a Spark partitioning hint</span>
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|
</span><span id="L-784"><a href="#L-784"><span class="linenos"> 784</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Hint</span><span class="p">)</span>
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|
</span><span id="L-785"><a href="#L-785"><span class="linenos"> 785</span></a> <span class="p">):</span>
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|
</span><span id="L-786"><a href="#L-786"><span class="linenos"> 786</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
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|
</span><span id="L-787"><a href="#L-787"><span class="linenos"> 787</span></a>
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|
</span><span id="L-788"><a href="#L-788"><span class="linenos"> 788</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span>
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|
</span><span id="L-789"><a href="#L-789"><span class="linenos"> 789</span></a> <span class="k">return</span> <span class="n">expression</span>
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|
</span><span id="L-790"><a href="#L-790"><span class="linenos"> 790</span></a>
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|
</span><span id="L-791"><a href="#L-791"><span class="linenos"> 791</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span>
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|
</span><span id="L-792"><a href="#L-792"><span class="linenos"> 792</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span>
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|
</span><span id="L-793"><a href="#L-793"><span class="linenos"> 793</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span>
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</span><span id="L-794"><a href="#L-794"><span class="linenos"> 794</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span>
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</span><span id="L-795"><a href="#L-795"><span class="linenos"> 795</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span>
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|
</span><span id="L-796"><a href="#L-796"><span class="linenos"> 796</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span>
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|
</span><span id="L-797"><a href="#L-797"><span class="linenos"> 797</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-798"><a href="#L-798"><span class="linenos"> 798</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-799"><a href="#L-799"><span class="linenos"> 799</span></a>
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|
</span><span id="L-800"><a href="#L-800"><span class="linenos"> 800</span></a> <span class="c1"># This transformation is valid for non-constants,</span>
|
|
</span><span id="L-801"><a href="#L-801"><span class="linenos"> 801</span></a> <span class="c1"># but it really only does anything if they are both constants.</span>
|
|
</span><span id="L-802"><a href="#L-802"><span class="linenos"> 802</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">other</span><span class="p">):</span>
|
|
</span><span id="L-803"><a href="#L-803"><span class="linenos"> 803</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-804"><a href="#L-804"><span class="linenos"> 804</span></a>
|
|
</span><span id="L-805"><a href="#L-805"><span class="linenos"> 805</span></a> <span class="c1"># Find the first constant arg</span>
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|
</span><span id="L-806"><a href="#L-806"><span class="linenos"> 806</span></a> <span class="k">for</span> <span class="n">arg_index</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">):</span>
|
|
</span><span id="L-807"><a href="#L-807"><span class="linenos"> 807</span></a> <span class="k">if</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">arg</span><span class="p">):</span>
|
|
</span><span id="L-808"><a href="#L-808"><span class="linenos"> 808</span></a> <span class="k">break</span>
|
|
</span><span id="L-809"><a href="#L-809"><span class="linenos"> 809</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-810"><a href="#L-810"><span class="linenos"> 810</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-811"><a href="#L-811"><span class="linenos"> 811</span></a>
|
|
</span><span id="L-812"><a href="#L-812"><span class="linenos"> 812</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">[:</span><span class="n">arg_index</span><span class="p">])</span>
|
|
</span><span id="L-813"><a href="#L-813"><span class="linenos"> 813</span></a>
|
|
</span><span id="L-814"><a href="#L-814"><span class="linenos"> 814</span></a> <span class="c1"># Remove the COALESCE function. This is an optimization, skipping a simplify iteration,</span>
|
|
</span><span id="L-815"><a href="#L-815"><span class="linenos"> 815</span></a> <span class="c1"># since we already remove COALESCE at the top of this function.</span>
|
|
</span><span id="L-816"><a href="#L-816"><span class="linenos"> 816</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">coalesce</span> <span class="k">if</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span> <span class="k">else</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-817"><a href="#L-817"><span class="linenos"> 817</span></a>
|
|
</span><span id="L-818"><a href="#L-818"><span class="linenos"> 818</span></a> <span class="c1"># This expression is more complex than when we started, but it will get simplified further</span>
|
|
</span><span id="L-819"><a href="#L-819"><span class="linenos"> 819</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span>
|
|
</span><span id="L-820"><a href="#L-820"><span class="linenos"> 820</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span>
|
|
</span><span id="L-821"><a href="#L-821"><span class="linenos"> 821</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
|
|
</span><span id="L-822"><a href="#L-822"><span class="linenos"> 822</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">())</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="L-823"><a href="#L-823"><span class="linenos"> 823</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span>
|
|
</span><span id="L-824"><a href="#L-824"><span class="linenos"> 824</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="L-825"><a href="#L-825"><span class="linenos"> 825</span></a> <span class="p">),</span>
|
|
</span><span id="L-826"><a href="#L-826"><span class="linenos"> 826</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
|
|
</span><span id="L-827"><a href="#L-827"><span class="linenos"> 827</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()),</span>
|
|
</span><span id="L-828"><a href="#L-828"><span class="linenos"> 828</span></a> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)(</span><span class="n">this</span><span class="o">=</span><span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">other</span><span class="o">.</span><span class="n">copy</span><span class="p">()),</span>
|
|
</span><span id="L-829"><a href="#L-829"><span class="linenos"> 829</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="L-830"><a href="#L-830"><span class="linenos"> 830</span></a> <span class="p">),</span>
|
|
</span><span id="L-831"><a href="#L-831"><span class="linenos"> 831</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="L-832"><a href="#L-832"><span class="linenos"> 832</span></a> <span class="p">)</span>
|
|
</span><span id="L-833"><a href="#L-833"><span class="linenos"> 833</span></a> <span class="p">)</span>
|
|
</span><span id="L-834"><a href="#L-834"><span class="linenos"> 834</span></a>
|
|
</span><span id="L-835"><a href="#L-835"><span class="linenos"> 835</span></a>
|
|
</span><span id="L-836"><a href="#L-836"><span class="linenos"> 836</span></a><span class="n">CONCATS</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Concat</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">)</span>
|
|
</span><span id="L-837"><a href="#L-837"><span class="linenos"> 837</span></a>
|
|
</span><span id="L-838"><a href="#L-838"><span class="linenos"> 838</span></a>
|
|
</span><span id="L-839"><a href="#L-839"><span class="linenos"> 839</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_concat</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-840"><a href="#L-840"><span class="linenos"> 840</span></a><span class="w"> </span><span class="sd">"""Reduces all groups that contain string literals by concatenating them."""</span>
|
|
</span><span id="L-841"><a href="#L-841"><span class="linenos"> 841</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">CONCATS</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span>
|
|
</span><span id="L-842"><a href="#L-842"><span class="linenos"> 842</span></a> <span class="c1"># We can't reduce a CONCAT_WS call if we don't statically know the separator</span>
|
|
</span><span id="L-843"><a href="#L-843"><span class="linenos"> 843</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="L-844"><a href="#L-844"><span class="linenos"> 844</span></a> <span class="p">):</span>
|
|
</span><span id="L-845"><a href="#L-845"><span class="linenos"> 845</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-846"><a href="#L-846"><span class="linenos"> 846</span></a>
|
|
</span><span id="L-847"><a href="#L-847"><span class="linenos"> 847</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">):</span>
|
|
</span><span id="L-848"><a href="#L-848"><span class="linenos"> 848</span></a> <span class="n">sep_expr</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span>
|
|
</span><span id="L-849"><a href="#L-849"><span class="linenos"> 849</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="n">sep_expr</span><span class="o">.</span><span class="n">name</span>
|
|
</span><span id="L-850"><a href="#L-850"><span class="linenos"> 850</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span>
|
|
</span><span id="L-851"><a href="#L-851"><span class="linenos"> 851</span></a> <span class="n">args</span> <span class="o">=</span> <span class="p">{}</span>
|
|
</span><span id="L-852"><a href="#L-852"><span class="linenos"> 852</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-853"><a href="#L-853"><span class="linenos"> 853</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span>
|
|
</span><span id="L-854"><a href="#L-854"><span class="linenos"> 854</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="s2">""</span>
|
|
</span><span id="L-855"><a href="#L-855"><span class="linenos"> 855</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Concat</span>
|
|
</span><span id="L-856"><a href="#L-856"><span class="linenos"> 856</span></a> <span class="n">args</span> <span class="o">=</span> <span class="p">{</span>
|
|
</span><span id="L-857"><a href="#L-857"><span class="linenos"> 857</span></a> <span class="s2">"safe"</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"safe"</span><span class="p">),</span>
|
|
</span><span id="L-858"><a href="#L-858"><span class="linenos"> 858</span></a> <span class="s2">"coalesce"</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"coalesce"</span><span class="p">),</span>
|
|
</span><span id="L-859"><a href="#L-859"><span class="linenos"> 859</span></a> <span class="p">}</span>
|
|
</span><span id="L-860"><a href="#L-860"><span class="linenos"> 860</span></a>
|
|
</span><span id="L-861"><a href="#L-861"><span class="linenos"> 861</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="L-862"><a href="#L-862"><span class="linenos"> 862</span></a> <span class="k">for</span> <span class="n">is_string_group</span><span class="p">,</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span>
|
|
</span><span id="L-863"><a href="#L-863"><span class="linenos"> 863</span></a> <span class="n">expressions</span> <span class="ow">or</span> <span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="L-864"><a href="#L-864"><span class="linenos"> 864</span></a> <span class="p">):</span>
|
|
</span><span id="L-865"><a href="#L-865"><span class="linenos"> 865</span></a> <span class="k">if</span> <span class="n">is_string_group</span><span class="p">:</span>
|
|
</span><span id="L-866"><a href="#L-866"><span class="linenos"> 866</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">group</span><span class="p">)))</span>
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</span><span id="L-867"><a href="#L-867"><span class="linenos"> 867</span></a> <span class="k">else</span><span class="p">:</span>
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|
</span><span id="L-868"><a href="#L-868"><span class="linenos"> 868</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">group</span><span class="p">)</span>
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</span><span id="L-869"><a href="#L-869"><span class="linenos"> 869</span></a>
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|
</span><span id="L-870"><a href="#L-870"><span class="linenos"> 870</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">new_args</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span>
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</span><span id="L-871"><a href="#L-871"><span class="linenos"> 871</span></a> <span class="k">return</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
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|
</span><span id="L-872"><a href="#L-872"><span class="linenos"> 872</span></a>
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|
</span><span id="L-873"><a href="#L-873"><span class="linenos"> 873</span></a> <span class="k">if</span> <span class="n">concat_type</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">:</span>
|
|
</span><span id="L-874"><a href="#L-874"><span class="linenos"> 874</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">sep_expr</span><span class="p">]</span> <span class="o">+</span> <span class="n">new_args</span>
|
|
</span><span id="L-875"><a href="#L-875"><span class="linenos"> 875</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">):</span>
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</span><span id="L-876"><a href="#L-876"><span class="linenos"> 876</span></a> <span class="k">return</span> <span class="n">reduce</span><span class="p">(</span><span class="k">lambda</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">x</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">y</span><span class="p">),</span> <span class="n">new_args</span><span class="p">)</span>
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|
</span><span id="L-877"><a href="#L-877"><span class="linenos"> 877</span></a>
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|
</span><span id="L-878"><a href="#L-878"><span class="linenos"> 878</span></a> <span class="k">return</span> <span class="n">concat_type</span><span class="p">(</span><span class="n">expressions</span><span class="o">=</span><span class="n">new_args</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
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|
</span><span id="L-879"><a href="#L-879"><span class="linenos"> 879</span></a>
|
|
</span><span id="L-880"><a href="#L-880"><span class="linenos"> 880</span></a>
|
|
</span><span id="L-881"><a href="#L-881"><span class="linenos"> 881</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_conditionals</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
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</span><span id="L-882"><a href="#L-882"><span class="linenos"> 882</span></a><span class="w"> </span><span class="sd">"""Simplifies expressions like IF, CASE if their condition is statically known."""</span>
|
|
</span><span id="L-883"><a href="#L-883"><span class="linenos"> 883</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span>
|
|
</span><span id="L-884"><a href="#L-884"><span class="linenos"> 884</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-885"><a href="#L-885"><span class="linenos"> 885</span></a> <span class="k">for</span> <span class="n">case</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span>
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|
</span><span id="L-886"><a href="#L-886"><span class="linenos"> 886</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">case</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-887"><a href="#L-887"><span class="linenos"> 887</span></a> <span class="k">if</span> <span class="n">this</span><span class="p">:</span>
|
|
</span><span id="L-888"><a href="#L-888"><span class="linenos"> 888</span></a> <span class="c1"># Convert CASE x WHEN matching_value ... to CASE WHEN x = matching_value ...</span>
|
|
</span><span id="L-889"><a href="#L-889"><span class="linenos"> 889</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">cond</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">this</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span><span class="o">.</span><span class="n">eq</span><span class="p">(</span><span class="n">cond</span><span class="p">))</span>
|
|
</span><span id="L-890"><a href="#L-890"><span class="linenos"> 890</span></a>
|
|
</span><span id="L-891"><a href="#L-891"><span class="linenos"> 891</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span>
|
|
</span><span id="L-892"><a href="#L-892"><span class="linenos"> 892</span></a> <span class="k">return</span> <span class="n">case</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span>
|
|
</span><span id="L-893"><a href="#L-893"><span class="linenos"> 893</span></a>
|
|
</span><span id="L-894"><a href="#L-894"><span class="linenos"> 894</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span>
|
|
</span><span id="L-895"><a href="#L-895"><span class="linenos"> 895</span></a> <span class="k">case</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-896"><a href="#L-896"><span class="linenos"> 896</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span>
|
|
</span><span id="L-897"><a href="#L-897"><span class="linenos"> 897</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"default"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="L-898"><a href="#L-898"><span class="linenos"> 898</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span>
|
|
</span><span id="L-899"><a href="#L-899"><span class="linenos"> 899</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="L-900"><a href="#L-900"><span class="linenos"> 900</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span>
|
|
</span><span id="L-901"><a href="#L-901"><span class="linenos"> 901</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="L-902"><a href="#L-902"><span class="linenos"> 902</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"false"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="L-903"><a href="#L-903"><span class="linenos"> 903</span></a>
|
|
</span><span id="L-904"><a href="#L-904"><span class="linenos"> 904</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-905"><a href="#L-905"><span class="linenos"> 905</span></a>
|
|
</span><span id="L-906"><a href="#L-906"><span class="linenos"> 906</span></a>
|
|
</span><span id="L-907"><a href="#L-907"><span class="linenos"> 907</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_startswith</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
|
|
</span><span id="L-908"><a href="#L-908"><span class="linenos"> 908</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="L-909"><a href="#L-909"><span class="linenos"> 909</span></a><span class="sd"> Reduces a prefix check to either TRUE or FALSE if both the string and the</span>
|
|
</span><span id="L-910"><a href="#L-910"><span class="linenos"> 910</span></a><span class="sd"> prefix are statically known.</span>
|
|
</span><span id="L-911"><a href="#L-911"><span class="linenos"> 911</span></a>
|
|
</span><span id="L-912"><a href="#L-912"><span class="linenos"> 912</span></a><span class="sd"> Example:</span>
|
|
</span><span id="L-913"><a href="#L-913"><span class="linenos"> 913</span></a><span class="sd"> >>> from sqlglot import parse_one</span>
|
|
</span><span id="L-914"><a href="#L-914"><span class="linenos"> 914</span></a><span class="sd"> >>> simplify_startswith(parse_one("STARTSWITH('foo', 'f')")).sql()</span>
|
|
</span><span id="L-915"><a href="#L-915"><span class="linenos"> 915</span></a><span class="sd"> 'TRUE'</span>
|
|
</span><span id="L-916"><a href="#L-916"><span class="linenos"> 916</span></a><span class="sd"> """</span>
|
|
</span><span id="L-917"><a href="#L-917"><span class="linenos"> 917</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="L-918"><a href="#L-918"><span class="linenos"> 918</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">StartsWith</span><span class="p">)</span>
|
|
</span><span id="L-919"><a href="#L-919"><span class="linenos"> 919</span></a> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="L-920"><a href="#L-920"><span class="linenos"> 920</span></a> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="L-921"><a href="#L-921"><span class="linenos"> 921</span></a> <span class="p">):</span>
|
|
</span><span id="L-922"><a href="#L-922"><span class="linenos"> 922</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">convert</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="p">))</span>
|
|
</span><span id="L-923"><a href="#L-923"><span class="linenos"> 923</span></a>
|
|
</span><span id="L-924"><a href="#L-924"><span class="linenos"> 924</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-925"><a href="#L-925"><span class="linenos"> 925</span></a>
|
|
</span><span id="L-926"><a href="#L-926"><span class="linenos"> 926</span></a>
|
|
</span><span id="L-927"><a href="#L-927"><span class="linenos"> 927</span></a><span class="n">DateRange</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]</span>
|
|
</span><span id="L-928"><a href="#L-928"><span class="linenos"> 928</span></a>
|
|
</span><span id="L-929"><a href="#L-929"><span class="linenos"> 929</span></a>
|
|
</span><span id="L-930"><a href="#L-930"><span class="linenos"> 930</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">DateRange</span><span class="p">]:</span>
|
|
</span><span id="L-931"><a href="#L-931"><span class="linenos"> 931</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="L-932"><a href="#L-932"><span class="linenos"> 932</span></a><span class="sd"> Get the date range for a DATE_TRUNC equality comparison:</span>
|
|
</span><span id="L-933"><a href="#L-933"><span class="linenos"> 933</span></a>
|
|
</span><span id="L-934"><a href="#L-934"><span class="linenos"> 934</span></a><span class="sd"> Example:</span>
|
|
</span><span id="L-935"><a href="#L-935"><span class="linenos"> 935</span></a><span class="sd"> _datetrunc_range(date(2021-01-01), 'year') == (date(2021-01-01), date(2022-01-01))</span>
|
|
</span><span id="L-936"><a href="#L-936"><span class="linenos"> 936</span></a><span class="sd"> Returns:</span>
|
|
</span><span id="L-937"><a href="#L-937"><span class="linenos"> 937</span></a><span class="sd"> tuple of [min, max) or None if a value can never be equal to `date` for `unit`</span>
|
|
</span><span id="L-938"><a href="#L-938"><span class="linenos"> 938</span></a><span class="sd"> """</span>
|
|
</span><span id="L-939"><a href="#L-939"><span class="linenos"> 939</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
|
|
</span><span id="L-940"><a href="#L-940"><span class="linenos"> 940</span></a>
|
|
</span><span id="L-941"><a href="#L-941"><span class="linenos"> 941</span></a> <span class="k">if</span> <span class="n">date</span> <span class="o">!=</span> <span class="n">floor</span><span class="p">:</span>
|
|
</span><span id="L-942"><a href="#L-942"><span class="linenos"> 942</span></a> <span class="c1"># This will always be False, except for NULL values.</span>
|
|
</span><span id="L-943"><a href="#L-943"><span class="linenos"> 943</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-944"><a href="#L-944"><span class="linenos"> 944</span></a>
|
|
</span><span id="L-945"><a href="#L-945"><span class="linenos"> 945</span></a> <span class="k">return</span> <span class="n">floor</span><span class="p">,</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span>
|
|
</span><span id="L-946"><a href="#L-946"><span class="linenos"> 946</span></a>
|
|
</span><span id="L-947"><a href="#L-947"><span class="linenos"> 947</span></a>
|
|
</span><span id="L-948"><a href="#L-948"><span class="linenos"> 948</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_datetrunc_eq_expression</span><span class="p">(</span>
|
|
</span><span id="L-949"><a href="#L-949"><span class="linenos"> 949</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">drange</span><span class="p">:</span> <span class="n">DateRange</span><span class="p">,</span> <span class="n">target_type</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">]</span>
|
|
</span><span id="L-950"><a href="#L-950"><span class="linenos"> 950</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
|
|
</span><span id="L-951"><a href="#L-951"><span class="linenos"> 951</span></a><span class="w"> </span><span class="sd">"""Get the logical expression for a date range"""</span>
|
|
</span><span id="L-952"><a href="#L-952"><span class="linenos"> 952</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
|
|
</span><span id="L-953"><a href="#L-953"><span class="linenos"> 953</span></a> <span class="n">left</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">target_type</span><span class="p">),</span>
|
|
</span><span id="L-954"><a href="#L-954"><span class="linenos"> 954</span></a> <span class="n">left</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">target_type</span><span class="p">),</span>
|
|
</span><span id="L-955"><a href="#L-955"><span class="linenos"> 955</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="L-956"><a href="#L-956"><span class="linenos"> 956</span></a> <span class="p">)</span>
|
|
</span><span id="L-957"><a href="#L-957"><span class="linenos"> 957</span></a>
|
|
</span><span id="L-958"><a href="#L-958"><span class="linenos"> 958</span></a>
|
|
</span><span id="L-959"><a href="#L-959"><span class="linenos"> 959</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_datetrunc_eq</span><span class="p">(</span>
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</span><span id="L-960"><a href="#L-960"><span class="linenos"> 960</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span>
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</span><span id="L-961"><a href="#L-961"><span class="linenos"> 961</span></a> <span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span>
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</span><span id="L-962"><a href="#L-962"><span class="linenos"> 962</span></a> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
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</span><span id="L-963"><a href="#L-963"><span class="linenos"> 963</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">,</span>
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</span><span id="L-964"><a href="#L-964"><span class="linenos"> 964</span></a> <span class="n">target_type</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">],</span>
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</span><span id="L-965"><a href="#L-965"><span class="linenos"> 965</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]:</span>
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</span><span id="L-966"><a href="#L-966"><span class="linenos"> 966</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
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</span><span id="L-967"><a href="#L-967"><span class="linenos"> 967</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">drange</span><span class="p">:</span>
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</span><span id="L-968"><a href="#L-968"><span class="linenos"> 968</span></a> <span class="k">return</span> <span class="kc">None</span>
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</span><span id="L-969"><a href="#L-969"><span class="linenos"> 969</span></a>
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</span><span id="L-970"><a href="#L-970"><span class="linenos"> 970</span></a> <span class="k">return</span> <span class="n">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">drange</span><span class="p">,</span> <span class="n">target_type</span><span class="p">)</span>
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</span><span id="L-971"><a href="#L-971"><span class="linenos"> 971</span></a>
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</span><span id="L-972"><a href="#L-972"><span class="linenos"> 972</span></a>
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</span><span id="L-973"><a href="#L-973"><span class="linenos"> 973</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_datetrunc_neq</span><span class="p">(</span>
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</span><span id="L-974"><a href="#L-974"><span class="linenos"> 974</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span>
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</span><span id="L-975"><a href="#L-975"><span class="linenos"> 975</span></a> <span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span>
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</span><span id="L-976"><a href="#L-976"><span class="linenos"> 976</span></a> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
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</span><span id="L-977"><a href="#L-977"><span class="linenos"> 977</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">,</span>
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</span><span id="L-978"><a href="#L-978"><span class="linenos"> 978</span></a> <span class="n">target_type</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">],</span>
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</span><span id="L-979"><a href="#L-979"><span class="linenos"> 979</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]:</span>
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</span><span id="L-980"><a href="#L-980"><span class="linenos"> 980</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
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</span><span id="L-981"><a href="#L-981"><span class="linenos"> 981</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">drange</span><span class="p">:</span>
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</span><span id="L-982"><a href="#L-982"><span class="linenos"> 982</span></a> <span class="k">return</span> <span class="kc">None</span>
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</span><span id="L-983"><a href="#L-983"><span class="linenos"> 983</span></a>
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</span><span id="L-984"><a href="#L-984"><span class="linenos"> 984</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
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</span><span id="L-985"><a href="#L-985"><span class="linenos"> 985</span></a> <span class="n">left</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">target_type</span><span class="p">),</span>
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</span><span id="L-986"><a href="#L-986"><span class="linenos"> 986</span></a> <span class="n">left</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">target_type</span><span class="p">),</span>
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</span><span id="L-987"><a href="#L-987"><span class="linenos"> 987</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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</span><span id="L-988"><a href="#L-988"><span class="linenos"> 988</span></a> <span class="p">)</span>
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</span><span id="L-989"><a href="#L-989"><span class="linenos"> 989</span></a>
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</span><span id="L-990"><a href="#L-990"><span class="linenos"> 990</span></a>
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</span><span id="L-991"><a href="#L-991"><span class="linenos"> 991</span></a><span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">DateTruncBinaryTransform</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
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</span><span id="L-992"><a href="#L-992"><span class="linenos"> 992</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">t</span><span class="p">:</span> <span class="n">l</span>
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</span><span id="L-993"><a href="#L-993"><span class="linenos"> 993</span></a> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">dt</span> <span class="k">if</span> <span class="n">dt</span> <span class="o">==</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">)</span> <span class="k">else</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">),</span> <span class="n">t</span><span class="p">),</span>
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</span><span id="L-994"><a href="#L-994"><span class="linenos"> 994</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">t</span><span class="p">:</span> <span class="n">l</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">),</span> <span class="n">t</span><span class="p">),</span>
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</span><span id="L-995"><a href="#L-995"><span class="linenos"> 995</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">t</span><span class="p">:</span> <span class="n">l</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">),</span> <span class="n">t</span><span class="p">),</span>
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</span><span id="L-996"><a href="#L-996"><span class="linenos"> 996</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">t</span><span class="p">:</span> <span class="n">l</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_ceil</span><span class="p">(</span><span class="n">dt</span><span class="p">,</span> <span class="n">u</span><span class="p">,</span> <span class="n">d</span><span class="p">),</span> <span class="n">t</span><span class="p">),</span>
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</span><span id="L-997"><a href="#L-997"><span class="linenos"> 997</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">:</span> <span class="n">_datetrunc_eq</span><span class="p">,</span>
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</span><span id="L-998"><a href="#L-998"><span class="linenos"> 998</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">:</span> <span class="n">_datetrunc_neq</span><span class="p">,</span>
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</span><span id="L-999"><a href="#L-999"><span class="linenos"> 999</span></a><span class="p">}</span>
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</span><span id="L-1000"><a href="#L-1000"><span class="linenos">1000</span></a><span class="n">DATETRUNC_COMPARISONS</span> <span class="o">=</span> <span class="p">{</span><span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">,</span> <span class="o">*</span><span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">}</span>
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</span><span id="L-1001"><a href="#L-1001"><span class="linenos">1001</span></a><span class="n">DATETRUNCS</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimestampTrunc</span><span class="p">)</span>
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</span><span id="L-1002"><a href="#L-1002"><span class="linenos">1002</span></a>
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</span><span id="L-1003"><a href="#L-1003"><span class="linenos">1003</span></a>
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</span><span id="L-1004"><a href="#L-1004"><span class="linenos">1004</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">right</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
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</span><span id="L-1005"><a href="#L-1005"><span class="linenos">1005</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">DATETRUNCS</span><span class="p">)</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">right</span><span class="p">)</span>
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</span><span id="L-1006"><a href="#L-1006"><span class="linenos">1006</span></a>
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</span><span id="L-1007"><a href="#L-1007"><span class="linenos">1007</span></a>
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</span><span id="L-1008"><a href="#L-1008"><span class="linenos">1008</span></a><span class="nd">@catch</span><span class="p">(</span><span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="n">UnsupportedUnit</span><span class="p">)</span>
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</span><span id="L-1009"><a href="#L-1009"><span class="linenos">1009</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_datetrunc</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
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</span><span id="L-1010"><a href="#L-1010"><span class="linenos">1010</span></a><span class="w"> </span><span class="sd">"""Simplify expressions like `DATE_TRUNC('year', x) >= CAST('2021-01-01' AS DATE)`"""</span>
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</span><span id="L-1011"><a href="#L-1011"><span class="linenos">1011</span></a> <span class="n">comparison</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span>
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</span><span id="L-1012"><a href="#L-1012"><span class="linenos">1012</span></a>
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</span><span id="L-1013"><a href="#L-1013"><span class="linenos">1013</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">DATETRUNCS</span><span class="p">):</span>
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</span><span id="L-1014"><a href="#L-1014"><span class="linenos">1014</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
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</span><span id="L-1015"><a href="#L-1015"><span class="linenos">1015</span></a> <span class="n">trunc_type</span> <span class="o">=</span> <span class="n">extract_type</span><span class="p">(</span><span class="n">this</span><span class="p">)</span>
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</span><span id="L-1016"><a href="#L-1016"><span class="linenos">1016</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">this</span><span class="p">)</span>
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</span><span id="L-1017"><a href="#L-1017"><span class="linenos">1017</span></a> <span class="k">if</span> <span class="n">date</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">unit</span><span class="p">:</span>
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</span><span id="L-1018"><a href="#L-1018"><span class="linenos">1018</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">(),</span> <span class="n">dialect</span><span class="p">),</span> <span class="n">trunc_type</span><span class="p">)</span>
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</span><span id="L-1019"><a href="#L-1019"><span class="linenos">1019</span></a> <span class="k">elif</span> <span class="n">comparison</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">DATETRUNC_COMPARISONS</span><span class="p">:</span>
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</span><span id="L-1020"><a href="#L-1020"><span class="linenos">1020</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-1021"><a href="#L-1021"><span class="linenos">1021</span></a>
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</span><span id="L-1022"><a href="#L-1022"><span class="linenos">1022</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
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</span><span id="L-1023"><a href="#L-1023"><span class="linenos">1023</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span>
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</span><span id="L-1024"><a href="#L-1024"><span class="linenos">1024</span></a>
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</span><span id="L-1025"><a href="#L-1025"><span class="linenos">1025</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">):</span>
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</span><span id="L-1026"><a href="#L-1026"><span class="linenos">1026</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="L-1027"><a href="#L-1027"><span class="linenos">1027</span></a>
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</span><span id="L-1028"><a href="#L-1028"><span class="linenos">1028</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span>
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</span><span id="L-1029"><a href="#L-1029"><span class="linenos">1029</span></a> <span class="n">trunc_arg</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">this</span>
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</span><span id="L-1030"><a href="#L-1030"><span class="linenos">1030</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
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</span><span id="L-1031"><a href="#L-1031"><span class="linenos">1031</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
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</span><span id="L-1032"><a href="#L-1032"><span class="linenos">1032</span></a>
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</span><span id="L-1033"><a href="#L-1033"><span class="linenos">1033</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">date</span><span class="p">:</span>
|
|
</span><span id="L-1034"><a href="#L-1034"><span class="linenos">1034</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1035"><a href="#L-1035"><span class="linenos">1035</span></a>
|
|
</span><span id="L-1036"><a href="#L-1036"><span class="linenos">1036</span></a> <span class="k">return</span> <span class="p">(</span>
|
|
</span><span id="L-1037"><a href="#L-1037"><span class="linenos">1037</span></a> <span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">[</span><span class="n">comparison</span><span class="p">](</span>
|
|
</span><span id="L-1038"><a href="#L-1038"><span class="linenos">1038</span></a> <span class="n">trunc_arg</span><span class="p">,</span> <span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">,</span> <span class="n">extract_type</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
|
|
</span><span id="L-1039"><a href="#L-1039"><span class="linenos">1039</span></a> <span class="p">)</span>
|
|
</span><span id="L-1040"><a href="#L-1040"><span class="linenos">1040</span></a> <span class="ow">or</span> <span class="n">expression</span>
|
|
</span><span id="L-1041"><a href="#L-1041"><span class="linenos">1041</span></a> <span class="p">)</span>
|
|
</span><span id="L-1042"><a href="#L-1042"><span class="linenos">1042</span></a>
|
|
</span><span id="L-1043"><a href="#L-1043"><span class="linenos">1043</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">):</span>
|
|
</span><span id="L-1044"><a href="#L-1044"><span class="linenos">1044</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-1045"><a href="#L-1045"><span class="linenos">1045</span></a> <span class="n">rs</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span>
|
|
</span><span id="L-1046"><a href="#L-1046"><span class="linenos">1046</span></a>
|
|
</span><span id="L-1047"><a href="#L-1047"><span class="linenos">1047</span></a> <span class="k">if</span> <span class="n">rs</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">)</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">rs</span><span class="p">):</span>
|
|
</span><span id="L-1048"><a href="#L-1048"><span class="linenos">1048</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span>
|
|
</span><span id="L-1049"><a href="#L-1049"><span class="linenos">1049</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
|
|
</span><span id="L-1050"><a href="#L-1050"><span class="linenos">1050</span></a>
|
|
</span><span id="L-1051"><a href="#L-1051"><span class="linenos">1051</span></a> <span class="n">ranges</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="L-1052"><a href="#L-1052"><span class="linenos">1052</span></a> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">rs</span><span class="p">:</span>
|
|
</span><span id="L-1053"><a href="#L-1053"><span class="linenos">1053</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
|
|
</span><span id="L-1054"><a href="#L-1054"><span class="linenos">1054</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">date</span><span class="p">:</span>
|
|
</span><span id="L-1055"><a href="#L-1055"><span class="linenos">1055</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1056"><a href="#L-1056"><span class="linenos">1056</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
|
|
</span><span id="L-1057"><a href="#L-1057"><span class="linenos">1057</span></a> <span class="k">if</span> <span class="n">drange</span><span class="p">:</span>
|
|
</span><span id="L-1058"><a href="#L-1058"><span class="linenos">1058</span></a> <span class="n">ranges</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">drange</span><span class="p">)</span>
|
|
</span><span id="L-1059"><a href="#L-1059"><span class="linenos">1059</span></a>
|
|
</span><span id="L-1060"><a href="#L-1060"><span class="linenos">1060</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">ranges</span><span class="p">:</span>
|
|
</span><span id="L-1061"><a href="#L-1061"><span class="linenos">1061</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1062"><a href="#L-1062"><span class="linenos">1062</span></a>
|
|
</span><span id="L-1063"><a href="#L-1063"><span class="linenos">1063</span></a> <span class="n">ranges</span> <span class="o">=</span> <span class="n">merge_ranges</span><span class="p">(</span><span class="n">ranges</span><span class="p">)</span>
|
|
</span><span id="L-1064"><a href="#L-1064"><span class="linenos">1064</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="n">extract_type</span><span class="p">(</span><span class="o">*</span><span class="n">rs</span><span class="p">)</span>
|
|
</span><span id="L-1065"><a href="#L-1065"><span class="linenos">1065</span></a>
|
|
</span><span id="L-1066"><a href="#L-1066"><span class="linenos">1066</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span>
|
|
</span><span id="L-1067"><a href="#L-1067"><span class="linenos">1067</span></a> <span class="o">*</span><span class="p">[</span><span class="n">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">drange</span><span class="p">,</span> <span class="n">target_type</span><span class="p">)</span> <span class="k">for</span> <span class="n">drange</span> <span class="ow">in</span> <span class="n">ranges</span><span class="p">],</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span>
|
|
</span><span id="L-1068"><a href="#L-1068"><span class="linenos">1068</span></a> <span class="p">)</span>
|
|
</span><span id="L-1069"><a href="#L-1069"><span class="linenos">1069</span></a>
|
|
</span><span id="L-1070"><a href="#L-1070"><span class="linenos">1070</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1071"><a href="#L-1071"><span class="linenos">1071</span></a>
|
|
</span><span id="L-1072"><a href="#L-1072"><span class="linenos">1072</span></a>
|
|
</span><span id="L-1073"><a href="#L-1073"><span class="linenos">1073</span></a><span class="k">def</span><span class="w"> </span><span class="nf">sort_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
|
|
</span><span id="L-1074"><a href="#L-1074"><span class="linenos">1074</span></a> <span class="k">if</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">COMPLEMENT_COMPARISONS</span><span class="p">:</span>
|
|
</span><span id="L-1075"><a href="#L-1075"><span class="linenos">1075</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">expression</span>
|
|
</span><span id="L-1076"><a href="#L-1076"><span class="linenos">1076</span></a> <span class="n">l_column</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span>
|
|
</span><span id="L-1077"><a href="#L-1077"><span class="linenos">1077</span></a> <span class="n">r_column</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span>
|
|
</span><span id="L-1078"><a href="#L-1078"><span class="linenos">1078</span></a> <span class="n">l_const</span> <span class="o">=</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">l</span><span class="p">)</span>
|
|
</span><span id="L-1079"><a href="#L-1079"><span class="linenos">1079</span></a> <span class="n">r_const</span> <span class="o">=</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
|
|
</span><span id="L-1080"><a href="#L-1080"><span class="linenos">1080</span></a>
|
|
</span><span id="L-1081"><a href="#L-1081"><span class="linenos">1081</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="L-1082"><a href="#L-1082"><span class="linenos">1082</span></a> <span class="p">(</span><span class="n">l_column</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">r_column</span><span class="p">)</span>
|
|
</span><span id="L-1083"><a href="#L-1083"><span class="linenos">1083</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">r_const</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">l_const</span><span class="p">)</span>
|
|
</span><span id="L-1084"><a href="#L-1084"><span class="linenos">1084</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">SubqueryPredicate</span><span class="p">)</span>
|
|
</span><span id="L-1085"><a href="#L-1085"><span class="linenos">1085</span></a> <span class="p">):</span>
|
|
</span><span id="L-1086"><a href="#L-1086"><span class="linenos">1086</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1087"><a href="#L-1087"><span class="linenos">1087</span></a> <span class="k">if</span> <span class="p">(</span><span class="n">r_column</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">l_column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">l_const</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">r_const</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">gen</span><span class="p">(</span><span class="n">l</span><span class="p">)</span> <span class="o">></span> <span class="n">gen</span><span class="p">(</span><span class="n">r</span><span class="p">)):</span>
|
|
</span><span id="L-1088"><a href="#L-1088"><span class="linenos">1088</span></a> <span class="k">return</span> <span class="n">INVERSE_COMPARISONS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">)(</span>
|
|
</span><span id="L-1089"><a href="#L-1089"><span class="linenos">1089</span></a> <span class="n">this</span><span class="o">=</span><span class="n">r</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">l</span>
|
|
</span><span id="L-1090"><a href="#L-1090"><span class="linenos">1090</span></a> <span class="p">)</span>
|
|
</span><span id="L-1091"><a href="#L-1091"><span class="linenos">1091</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1092"><a href="#L-1092"><span class="linenos">1092</span></a>
|
|
</span><span id="L-1093"><a href="#L-1093"><span class="linenos">1093</span></a>
|
|
</span><span id="L-1094"><a href="#L-1094"><span class="linenos">1094</span></a><span class="c1"># CROSS joins result in an empty table if the right table is empty.</span>
|
|
</span><span id="L-1095"><a href="#L-1095"><span class="linenos">1095</span></a><span class="c1"># So we can only simplify certain types of joins to CROSS.</span>
|
|
</span><span id="L-1096"><a href="#L-1096"><span class="linenos">1096</span></a><span class="c1"># Or in other words, LEFT JOIN x ON TRUE != CROSS JOIN x</span>
|
|
</span><span id="L-1097"><a href="#L-1097"><span class="linenos">1097</span></a><span class="n">JOINS</span> <span class="o">=</span> <span class="p">{</span>
|
|
</span><span id="L-1098"><a href="#L-1098"><span class="linenos">1098</span></a> <span class="p">(</span><span class="s2">""</span><span class="p">,</span> <span class="s2">""</span><span class="p">),</span>
|
|
</span><span id="L-1099"><a href="#L-1099"><span class="linenos">1099</span></a> <span class="p">(</span><span class="s2">""</span><span class="p">,</span> <span class="s2">"INNER"</span><span class="p">),</span>
|
|
</span><span id="L-1100"><a href="#L-1100"><span class="linenos">1100</span></a> <span class="p">(</span><span class="s2">"RIGHT"</span><span class="p">,</span> <span class="s2">""</span><span class="p">),</span>
|
|
</span><span id="L-1101"><a href="#L-1101"><span class="linenos">1101</span></a> <span class="p">(</span><span class="s2">"RIGHT"</span><span class="p">,</span> <span class="s2">"OUTER"</span><span class="p">),</span>
|
|
</span><span id="L-1102"><a href="#L-1102"><span class="linenos">1102</span></a><span class="p">}</span>
|
|
</span><span id="L-1103"><a href="#L-1103"><span class="linenos">1103</span></a>
|
|
</span><span id="L-1104"><a href="#L-1104"><span class="linenos">1104</span></a>
|
|
</span><span id="L-1105"><a href="#L-1105"><span class="linenos">1105</span></a><span class="k">def</span><span class="w"> </span><span class="nf">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-1106"><a href="#L-1106"><span class="linenos">1106</span></a> <span class="k">for</span> <span class="n">where</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span>
|
|
</span><span id="L-1107"><a href="#L-1107"><span class="linenos">1107</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="L-1108"><a href="#L-1108"><span class="linenos">1108</span></a> <span class="n">where</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-1109"><a href="#L-1109"><span class="linenos">1109</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span>
|
|
</span><span id="L-1110"><a href="#L-1110"><span class="linenos">1110</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="L-1111"><a href="#L-1111"><span class="linenos">1111</span></a> <span class="n">always_true</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span>
|
|
</span><span id="L-1112"><a href="#L-1112"><span class="linenos">1112</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span>
|
|
</span><span id="L-1113"><a href="#L-1113"><span class="linenos">1113</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"method"</span><span class="p">)</span>
|
|
</span><span id="L-1114"><a href="#L-1114"><span class="linenos">1114</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">side</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">kind</span><span class="p">)</span> <span class="ow">in</span> <span class="n">JOINS</span>
|
|
</span><span id="L-1115"><a href="#L-1115"><span class="linenos">1115</span></a> <span class="p">):</span>
|
|
</span><span id="L-1116"><a href="#L-1116"><span class="linenos">1116</span></a> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"on"</span><span class="p">]</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-1117"><a href="#L-1117"><span class="linenos">1117</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"side"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
|
|
</span><span id="L-1118"><a href="#L-1118"><span class="linenos">1118</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"kind"</span><span class="p">,</span> <span class="s2">"CROSS"</span><span class="p">)</span>
|
|
</span><span id="L-1119"><a href="#L-1119"><span class="linenos">1119</span></a>
|
|
</span><span id="L-1120"><a href="#L-1120"><span class="linenos">1120</span></a>
|
|
</span><span id="L-1121"><a href="#L-1121"><span class="linenos">1121</span></a><span class="k">def</span><span class="w"> </span><span class="nf">always_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-1122"><a href="#L-1122"><span class="linenos">1122</span></a> <span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span>
|
|
</span><span id="L-1123"><a href="#L-1123"><span class="linenos">1123</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span><span id="L-1124"><a href="#L-1124"><span class="linenos">1124</span></a> <span class="p">)</span>
|
|
</span><span id="L-1125"><a href="#L-1125"><span class="linenos">1125</span></a>
|
|
</span><span id="L-1126"><a href="#L-1126"><span class="linenos">1126</span></a>
|
|
</span><span id="L-1127"><a href="#L-1127"><span class="linenos">1127</span></a><span class="k">def</span><span class="w"> </span><span class="nf">always_false</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-1128"><a href="#L-1128"><span class="linenos">1128</span></a> <span class="k">return</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span><span id="L-1129"><a href="#L-1129"><span class="linenos">1129</span></a>
|
|
</span><span id="L-1130"><a href="#L-1130"><span class="linenos">1130</span></a>
|
|
</span><span id="L-1131"><a href="#L-1131"><span class="linenos">1131</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_zero</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-1132"><a href="#L-1132"><span class="linenos">1132</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span> <span class="o">==</span> <span class="mi">0</span>
|
|
</span><span id="L-1133"><a href="#L-1133"><span class="linenos">1133</span></a>
|
|
</span><span id="L-1134"><a href="#L-1134"><span class="linenos">1134</span></a>
|
|
</span><span id="L-1135"><a href="#L-1135"><span class="linenos">1135</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
|
|
</span><span id="L-1136"><a href="#L-1136"><span class="linenos">1136</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="o">==</span> <span class="n">a</span>
|
|
</span><span id="L-1137"><a href="#L-1137"><span class="linenos">1137</span></a>
|
|
</span><span id="L-1138"><a href="#L-1138"><span class="linenos">1138</span></a>
|
|
</span><span id="L-1139"><a href="#L-1139"><span class="linenos">1139</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_false</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="L-1140"><a href="#L-1140"><span class="linenos">1140</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-1141"><a href="#L-1141"><span class="linenos">1141</span></a>
|
|
</span><span id="L-1142"><a href="#L-1142"><span class="linenos">1142</span></a>
|
|
</span><span id="L-1143"><a href="#L-1143"><span class="linenos">1143</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="L-1144"><a href="#L-1144"><span class="linenos">1144</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span>
|
|
</span><span id="L-1145"><a href="#L-1145"><span class="linenos">1145</span></a>
|
|
</span><span id="L-1146"><a href="#L-1146"><span class="linenos">1146</span></a>
|
|
</span><span id="L-1147"><a href="#L-1147"><span class="linenos">1147</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
|
|
</span><span id="L-1148"><a href="#L-1148"><span class="linenos">1148</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)):</span>
|
|
</span><span id="L-1149"><a href="#L-1149"><span class="linenos">1149</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1150"><a href="#L-1150"><span class="linenos">1150</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span>
|
|
</span><span id="L-1151"><a href="#L-1151"><span class="linenos">1151</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">!=</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1152"><a href="#L-1152"><span class="linenos">1152</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span>
|
|
</span><span id="L-1153"><a href="#L-1153"><span class="linenos">1153</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1154"><a href="#L-1154"><span class="linenos">1154</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span>
|
|
</span><span id="L-1155"><a href="#L-1155"><span class="linenos">1155</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1156"><a href="#L-1156"><span class="linenos">1156</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span>
|
|
</span><span id="L-1157"><a href="#L-1157"><span class="linenos">1157</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1158"><a href="#L-1158"><span class="linenos">1158</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span>
|
|
</span><span id="L-1159"><a href="#L-1159"><span class="linenos">1159</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1160"><a href="#L-1160"><span class="linenos">1160</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1161"><a href="#L-1161"><span class="linenos">1161</span></a>
|
|
</span><span id="L-1162"><a href="#L-1162"><span class="linenos">1162</span></a>
|
|
</span><span id="L-1163"><a href="#L-1163"><span class="linenos">1163</span></a><span class="k">def</span><span class="w"> </span><span class="nf">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]:</span>
|
|
</span><span id="L-1164"><a href="#L-1164"><span class="linenos">1164</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span>
|
|
</span><span id="L-1165"><a href="#L-1165"><span class="linenos">1165</span></a> <span class="k">return</span> <span class="n">value</span><span class="o">.</span><span class="n">date</span><span class="p">()</span>
|
|
</span><span id="L-1166"><a href="#L-1166"><span class="linenos">1166</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span>
|
|
</span><span id="L-1167"><a href="#L-1167"><span class="linenos">1167</span></a> <span class="k">return</span> <span class="n">value</span>
|
|
</span><span id="L-1168"><a href="#L-1168"><span class="linenos">1168</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="L-1169"><a href="#L-1169"><span class="linenos">1169</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="o">.</span><span class="n">date</span><span class="p">()</span>
|
|
</span><span id="L-1170"><a href="#L-1170"><span class="linenos">1170</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
|
</span><span id="L-1171"><a href="#L-1171"><span class="linenos">1171</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1172"><a href="#L-1172"><span class="linenos">1172</span></a>
|
|
</span><span id="L-1173"><a href="#L-1173"><span class="linenos">1173</span></a>
|
|
</span><span id="L-1174"><a href="#L-1174"><span class="linenos">1174</span></a><span class="k">def</span><span class="w"> </span><span class="nf">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]:</span>
|
|
</span><span id="L-1175"><a href="#L-1175"><span class="linenos">1175</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span>
|
|
</span><span id="L-1176"><a href="#L-1176"><span class="linenos">1176</span></a> <span class="k">return</span> <span class="n">value</span>
|
|
</span><span id="L-1177"><a href="#L-1177"><span class="linenos">1177</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span>
|
|
</span><span id="L-1178"><a href="#L-1178"><span class="linenos">1178</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">month</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">day</span><span class="p">)</span>
|
|
</span><span id="L-1179"><a href="#L-1179"><span class="linenos">1179</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="L-1180"><a href="#L-1180"><span class="linenos">1180</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
|
</span><span id="L-1181"><a href="#L-1181"><span class="linenos">1181</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
|
</span><span id="L-1182"><a href="#L-1182"><span class="linenos">1182</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1183"><a href="#L-1183"><span class="linenos">1183</span></a>
|
|
</span><span id="L-1184"><a href="#L-1184"><span class="linenos">1184</span></a>
|
|
</span><span id="L-1185"><a href="#L-1185"><span class="linenos">1185</span></a><span class="k">def</span><span class="w"> </span><span class="nf">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">to</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span>
|
|
</span><span id="L-1186"><a href="#L-1186"><span class="linenos">1186</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="p">:</span>
|
|
</span><span id="L-1187"><a href="#L-1187"><span class="linenos">1187</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1188"><a href="#L-1188"><span class="linenos">1188</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">):</span>
|
|
</span><span id="L-1189"><a href="#L-1189"><span class="linenos">1189</span></a> <span class="k">return</span> <span class="n">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
|
</span><span id="L-1190"><a href="#L-1190"><span class="linenos">1190</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span>
|
|
</span><span id="L-1191"><a href="#L-1191"><span class="linenos">1191</span></a> <span class="k">return</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
|
</span><span id="L-1192"><a href="#L-1192"><span class="linenos">1192</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1193"><a href="#L-1193"><span class="linenos">1193</span></a>
|
|
</span><span id="L-1194"><a href="#L-1194"><span class="linenos">1194</span></a>
|
|
</span><span id="L-1195"><a href="#L-1195"><span class="linenos">1195</span></a><span class="k">def</span><span class="w"> </span><span class="nf">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span>
|
|
</span><span id="L-1196"><a href="#L-1196"><span class="linenos">1196</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span>
|
|
</span><span id="L-1197"><a href="#L-1197"><span class="linenos">1197</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">to</span>
|
|
</span><span id="L-1198"><a href="#L-1198"><span class="linenos">1198</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">cast</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"format"</span><span class="p">):</span>
|
|
</span><span id="L-1199"><a href="#L-1199"><span class="linenos">1199</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">)</span>
|
|
</span><span id="L-1200"><a href="#L-1200"><span class="linenos">1200</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1201"><a href="#L-1201"><span class="linenos">1201</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1202"><a href="#L-1202"><span class="linenos">1202</span></a>
|
|
</span><span id="L-1203"><a href="#L-1203"><span class="linenos">1203</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span>
|
|
</span><span id="L-1204"><a href="#L-1204"><span class="linenos">1204</span></a> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span>
|
|
</span><span id="L-1205"><a href="#L-1205"><span class="linenos">1205</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)):</span>
|
|
</span><span id="L-1206"><a href="#L-1206"><span class="linenos">1206</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="L-1207"><a href="#L-1207"><span class="linenos">1207</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1208"><a href="#L-1208"><span class="linenos">1208</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1209"><a href="#L-1209"><span class="linenos">1209</span></a> <span class="k">return</span> <span class="n">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">to</span><span class="p">)</span>
|
|
</span><span id="L-1210"><a href="#L-1210"><span class="linenos">1210</span></a>
|
|
</span><span id="L-1211"><a href="#L-1211"><span class="linenos">1211</span></a>
|
|
</span><span id="L-1212"><a href="#L-1212"><span class="linenos">1212</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_is_date_literal</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="L-1213"><a href="#L-1213"><span class="linenos">1213</span></a> <span class="k">return</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
|
|
</span><span id="L-1214"><a href="#L-1214"><span class="linenos">1214</span></a>
|
|
</span><span id="L-1215"><a href="#L-1215"><span class="linenos">1215</span></a>
|
|
</span><span id="L-1216"><a href="#L-1216"><span class="linenos">1216</span></a><span class="k">def</span><span class="w"> </span><span class="nf">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="L-1217"><a href="#L-1217"><span class="linenos">1217</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="L-1218"><a href="#L-1218"><span class="linenos">1218</span></a> <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">to_py</span><span class="p">())</span>
|
|
</span><span id="L-1219"><a href="#L-1219"><span class="linenos">1219</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="s2">"unit"</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
|
|
</span><span id="L-1220"><a href="#L-1220"><span class="linenos">1220</span></a> <span class="k">return</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1221"><a href="#L-1221"><span class="linenos">1221</span></a> <span class="k">except</span> <span class="p">(</span><span class="n">UnsupportedUnit</span><span class="p">,</span> <span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="ne">ValueError</span><span class="p">):</span>
|
|
</span><span id="L-1222"><a href="#L-1222"><span class="linenos">1222</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="L-1223"><a href="#L-1223"><span class="linenos">1223</span></a>
|
|
</span><span id="L-1224"><a href="#L-1224"><span class="linenos">1224</span></a>
|
|
</span><span id="L-1225"><a href="#L-1225"><span class="linenos">1225</span></a><span class="k">def</span><span class="w"> </span><span class="nf">extract_type</span><span class="p">(</span><span class="o">*</span><span class="n">expressions</span><span class="p">):</span>
|
|
</span><span id="L-1226"><a href="#L-1226"><span class="linenos">1226</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="kc">None</span>
|
|
</span><span id="L-1227"><a href="#L-1227"><span class="linenos">1227</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span>
|
|
</span><span id="L-1228"><a href="#L-1228"><span class="linenos">1228</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">to</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">)</span> <span class="k">else</span> <span class="n">expression</span><span class="o">.</span><span class="n">type</span>
|
|
</span><span id="L-1229"><a href="#L-1229"><span class="linenos">1229</span></a> <span class="k">if</span> <span class="n">target_type</span><span class="p">:</span>
|
|
</span><span id="L-1230"><a href="#L-1230"><span class="linenos">1230</span></a> <span class="k">break</span>
|
|
</span><span id="L-1231"><a href="#L-1231"><span class="linenos">1231</span></a>
|
|
</span><span id="L-1232"><a href="#L-1232"><span class="linenos">1232</span></a> <span class="k">return</span> <span class="n">target_type</span>
|
|
</span><span id="L-1233"><a href="#L-1233"><span class="linenos">1233</span></a>
|
|
</span><span id="L-1234"><a href="#L-1234"><span class="linenos">1234</span></a>
|
|
</span><span id="L-1235"><a href="#L-1235"><span class="linenos">1235</span></a><span class="k">def</span><span class="w"> </span><span class="nf">date_literal</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">target_type</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
|
|
</span><span id="L-1236"><a href="#L-1236"><span class="linenos">1236</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">target_type</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">target_type</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span>
|
|
</span><span id="L-1237"><a href="#L-1237"><span class="linenos">1237</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="p">(</span>
|
|
</span><span id="L-1238"><a href="#L-1238"><span class="linenos">1238</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATETIME</span>
|
|
</span><span id="L-1239"><a href="#L-1239"><span class="linenos">1239</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">)</span>
|
|
</span><span id="L-1240"><a href="#L-1240"><span class="linenos">1240</span></a> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span>
|
|
</span><span id="L-1241"><a href="#L-1241"><span class="linenos">1241</span></a> <span class="p">)</span>
|
|
</span><span id="L-1242"><a href="#L-1242"><span class="linenos">1242</span></a>
|
|
</span><span id="L-1243"><a href="#L-1243"><span class="linenos">1243</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">date</span><span class="p">),</span> <span class="n">target_type</span><span class="p">)</span>
|
|
</span><span id="L-1244"><a href="#L-1244"><span class="linenos">1244</span></a>
|
|
</span><span id="L-1245"><a href="#L-1245"><span class="linenos">1245</span></a>
|
|
</span><span id="L-1246"><a href="#L-1246"><span class="linenos">1246</span></a><span class="k">def</span><span class="w"> </span><span class="nf">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">):</span>
|
|
</span><span id="L-1247"><a href="#L-1247"><span class="linenos">1247</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">dateutil.relativedelta</span><span class="w"> </span><span class="kn">import</span> <span class="n">relativedelta</span>
|
|
</span><span id="L-1248"><a href="#L-1248"><span class="linenos">1248</span></a>
|
|
</span><span id="L-1249"><a href="#L-1249"><span class="linenos">1249</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span>
|
|
</span><span id="L-1250"><a href="#L-1250"><span class="linenos">1250</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">years</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1251"><a href="#L-1251"><span class="linenos">1251</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span>
|
|
</span><span id="L-1252"><a href="#L-1252"><span class="linenos">1252</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">3</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1253"><a href="#L-1253"><span class="linenos">1253</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span>
|
|
</span><span id="L-1254"><a href="#L-1254"><span class="linenos">1254</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1255"><a href="#L-1255"><span class="linenos">1255</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span>
|
|
</span><span id="L-1256"><a href="#L-1256"><span class="linenos">1256</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">weeks</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1257"><a href="#L-1257"><span class="linenos">1257</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span>
|
|
</span><span id="L-1258"><a href="#L-1258"><span class="linenos">1258</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1259"><a href="#L-1259"><span class="linenos">1259</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"hour"</span><span class="p">:</span>
|
|
</span><span id="L-1260"><a href="#L-1260"><span class="linenos">1260</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">hours</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1261"><a href="#L-1261"><span class="linenos">1261</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"minute"</span><span class="p">:</span>
|
|
</span><span id="L-1262"><a href="#L-1262"><span class="linenos">1262</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">minutes</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1263"><a href="#L-1263"><span class="linenos">1263</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"second"</span><span class="p">:</span>
|
|
</span><span id="L-1264"><a href="#L-1264"><span class="linenos">1264</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="L-1265"><a href="#L-1265"><span class="linenos">1265</span></a>
|
|
</span><span id="L-1266"><a href="#L-1266"><span class="linenos">1266</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
|
|
</span><span id="L-1267"><a href="#L-1267"><span class="linenos">1267</span></a>
|
|
</span><span id="L-1268"><a href="#L-1268"><span class="linenos">1268</span></a>
|
|
</span><span id="L-1269"><a href="#L-1269"><span class="linenos">1269</span></a><span class="k">def</span><span class="w"> </span><span class="nf">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span>
|
|
</span><span id="L-1270"><a href="#L-1270"><span class="linenos">1270</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span>
|
|
</span><span id="L-1271"><a href="#L-1271"><span class="linenos">1271</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1272"><a href="#L-1272"><span class="linenos">1272</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span>
|
|
</span><span id="L-1273"><a href="#L-1273"><span class="linenos">1273</span></a> <span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span>
|
|
</span><span id="L-1274"><a href="#L-1274"><span class="linenos">1274</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1275"><a href="#L-1275"><span class="linenos">1275</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">6</span><span class="p">:</span>
|
|
</span><span id="L-1276"><a href="#L-1276"><span class="linenos">1276</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1277"><a href="#L-1277"><span class="linenos">1277</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">:</span>
|
|
</span><span id="L-1278"><a href="#L-1278"><span class="linenos">1278</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1279"><a href="#L-1279"><span class="linenos">1279</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1280"><a href="#L-1280"><span class="linenos">1280</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1281"><a href="#L-1281"><span class="linenos">1281</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span>
|
|
</span><span id="L-1282"><a href="#L-1282"><span class="linenos">1282</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1283"><a href="#L-1283"><span class="linenos">1283</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span>
|
|
</span><span id="L-1284"><a href="#L-1284"><span class="linenos">1284</span></a> <span class="c1"># Assuming week starts on Monday (0) and ends on Sunday (6)</span>
|
|
</span><span id="L-1285"><a href="#L-1285"><span class="linenos">1285</span></a> <span class="k">return</span> <span class="n">d</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">weekday</span><span class="p">()</span> <span class="o">-</span> <span class="n">dialect</span><span class="o">.</span><span class="n">WEEK_OFFSET</span><span class="p">)</span>
|
|
</span><span id="L-1286"><a href="#L-1286"><span class="linenos">1286</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span>
|
|
</span><span id="L-1287"><a href="#L-1287"><span class="linenos">1287</span></a> <span class="k">return</span> <span class="n">d</span>
|
|
</span><span id="L-1288"><a href="#L-1288"><span class="linenos">1288</span></a>
|
|
</span><span id="L-1289"><a href="#L-1289"><span class="linenos">1289</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
|
|
</span><span id="L-1290"><a href="#L-1290"><span class="linenos">1290</span></a>
|
|
</span><span id="L-1291"><a href="#L-1291"><span class="linenos">1291</span></a>
|
|
</span><span id="L-1292"><a href="#L-1292"><span class="linenos">1292</span></a><span class="k">def</span><span class="w"> </span><span class="nf">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span>
|
|
</span><span id="L-1293"><a href="#L-1293"><span class="linenos">1293</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
|
|
</span><span id="L-1294"><a href="#L-1294"><span class="linenos">1294</span></a>
|
|
</span><span id="L-1295"><a href="#L-1295"><span class="linenos">1295</span></a> <span class="k">if</span> <span class="n">floor</span> <span class="o">==</span> <span class="n">d</span><span class="p">:</span>
|
|
</span><span id="L-1296"><a href="#L-1296"><span class="linenos">1296</span></a> <span class="k">return</span> <span class="n">d</span>
|
|
</span><span id="L-1297"><a href="#L-1297"><span class="linenos">1297</span></a>
|
|
</span><span id="L-1298"><a href="#L-1298"><span class="linenos">1298</span></a> <span class="k">return</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span>
|
|
</span><span id="L-1299"><a href="#L-1299"><span class="linenos">1299</span></a>
|
|
</span><span id="L-1300"><a href="#L-1300"><span class="linenos">1300</span></a>
|
|
</span><span id="L-1301"><a href="#L-1301"><span class="linenos">1301</span></a><span class="k">def</span><span class="w"> </span><span class="nf">boolean_literal</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span>
|
|
</span><span id="L-1302"><a href="#L-1302"><span class="linenos">1302</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">condition</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
|
|
</span><span id="L-1303"><a href="#L-1303"><span class="linenos">1303</span></a>
|
|
</span><span id="L-1304"><a href="#L-1304"><span class="linenos">1304</span></a>
|
|
</span><span id="L-1305"><a href="#L-1305"><span class="linenos">1305</span></a><span class="k">def</span><span class="w"> </span><span class="nf">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">simplifier</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
|
|
</span><span id="L-1306"><a href="#L-1306"><span class="linenos">1306</span></a> <span class="k">if</span> <span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">:</span>
|
|
</span><span id="L-1307"><a href="#L-1307"><span class="linenos">1307</span></a> <span class="n">operands</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="L-1308"><a href="#L-1308"><span class="linenos">1308</span></a> <span class="n">queue</span> <span class="o">=</span> <span class="n">deque</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(</span><span class="n">unnest</span><span class="o">=</span><span class="kc">False</span><span class="p">))</span>
|
|
</span><span id="L-1309"><a href="#L-1309"><span class="linenos">1309</span></a> <span class="n">size</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">queue</span><span class="p">)</span>
|
|
</span><span id="L-1310"><a href="#L-1310"><span class="linenos">1310</span></a>
|
|
</span><span id="L-1311"><a href="#L-1311"><span class="linenos">1311</span></a> <span class="k">while</span> <span class="n">queue</span><span class="p">:</span>
|
|
</span><span id="L-1312"><a href="#L-1312"><span class="linenos">1312</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">queue</span><span class="o">.</span><span class="n">popleft</span><span class="p">()</span>
|
|
</span><span id="L-1313"><a href="#L-1313"><span class="linenos">1313</span></a>
|
|
</span><span id="L-1314"><a href="#L-1314"><span class="linenos">1314</span></a> <span class="k">for</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">queue</span><span class="p">:</span>
|
|
</span><span id="L-1315"><a href="#L-1315"><span class="linenos">1315</span></a> <span class="n">result</span> <span class="o">=</span> <span class="n">simplifier</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1316"><a href="#L-1316"><span class="linenos">1316</span></a>
|
|
</span><span id="L-1317"><a href="#L-1317"><span class="linenos">1317</span></a> <span class="k">if</span> <span class="n">result</span> <span class="ow">and</span> <span class="n">result</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">expression</span><span class="p">:</span>
|
|
</span><span id="L-1318"><a href="#L-1318"><span class="linenos">1318</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
|
|
</span><span id="L-1319"><a href="#L-1319"><span class="linenos">1319</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">appendleft</span><span class="p">(</span><span class="n">result</span><span class="p">)</span>
|
|
</span><span id="L-1320"><a href="#L-1320"><span class="linenos">1320</span></a> <span class="k">break</span>
|
|
</span><span id="L-1321"><a href="#L-1321"><span class="linenos">1321</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1322"><a href="#L-1322"><span class="linenos">1322</span></a> <span class="n">operands</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
|
|
</span><span id="L-1323"><a href="#L-1323"><span class="linenos">1323</span></a>
|
|
</span><span id="L-1324"><a href="#L-1324"><span class="linenos">1324</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">operands</span><span class="p">)</span> <span class="o"><</span> <span class="n">size</span><span class="p">:</span>
|
|
</span><span id="L-1325"><a href="#L-1325"><span class="linenos">1325</span></a> <span class="k">return</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span>
|
|
</span><span id="L-1326"><a href="#L-1326"><span class="linenos">1326</span></a> <span class="k">lambda</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">a</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">b</span><span class="p">),</span> <span class="n">operands</span>
|
|
</span><span id="L-1327"><a href="#L-1327"><span class="linenos">1327</span></a> <span class="p">)</span>
|
|
</span><span id="L-1328"><a href="#L-1328"><span class="linenos">1328</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="L-1329"><a href="#L-1329"><span class="linenos">1329</span></a>
|
|
</span><span id="L-1330"><a href="#L-1330"><span class="linenos">1330</span></a>
|
|
</span><span id="L-1331"><a href="#L-1331"><span class="linenos">1331</span></a><span class="k">def</span><span class="w"> </span><span class="nf">gen</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
|
|
</span><span id="L-1332"><a href="#L-1332"><span class="linenos">1332</span></a><span class="w"> </span><span class="sd">"""Simple pseudo sql generator for quickly generating sortable and uniq strings.</span>
|
|
</span><span id="L-1333"><a href="#L-1333"><span class="linenos">1333</span></a>
|
|
</span><span id="L-1334"><a href="#L-1334"><span class="linenos">1334</span></a><span class="sd"> Sorting and deduping sql is a necessary step for optimization. Calling the actual</span>
|
|
</span><span id="L-1335"><a href="#L-1335"><span class="linenos">1335</span></a><span class="sd"> generator is expensive so we have a bare minimum sql generator here.</span>
|
|
</span><span id="L-1336"><a href="#L-1336"><span class="linenos">1336</span></a>
|
|
</span><span id="L-1337"><a href="#L-1337"><span class="linenos">1337</span></a><span class="sd"> Args:</span>
|
|
</span><span id="L-1338"><a href="#L-1338"><span class="linenos">1338</span></a><span class="sd"> expression: the expression to convert into a SQL string.</span>
|
|
</span><span id="L-1339"><a href="#L-1339"><span class="linenos">1339</span></a><span class="sd"> comments: whether to include the expression's comments.</span>
|
|
</span><span id="L-1340"><a href="#L-1340"><span class="linenos">1340</span></a><span class="sd"> """</span>
|
|
</span><span id="L-1341"><a href="#L-1341"><span class="linenos">1341</span></a> <span class="k">return</span> <span class="n">Gen</span><span class="p">()</span><span class="o">.</span><span class="n">gen</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">comments</span><span class="o">=</span><span class="n">comments</span><span class="p">)</span>
|
|
</span><span id="L-1342"><a href="#L-1342"><span class="linenos">1342</span></a>
|
|
</span><span id="L-1343"><a href="#L-1343"><span class="linenos">1343</span></a>
|
|
</span><span id="L-1344"><a href="#L-1344"><span class="linenos">1344</span></a><span class="k">class</span><span class="w"> </span><span class="nc">Gen</span><span class="p">:</span>
|
|
</span><span id="L-1345"><a href="#L-1345"><span class="linenos">1345</span></a> <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
|
</span><span id="L-1346"><a href="#L-1346"><span class="linenos">1346</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="L-1347"><a href="#L-1347"><span class="linenos">1347</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="L-1348"><a href="#L-1348"><span class="linenos">1348</span></a>
|
|
</span><span id="L-1349"><a href="#L-1349"><span class="linenos">1349</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gen</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
|
|
</span><span id="L-1350"><a href="#L-1350"><span class="linenos">1350</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="p">]</span>
|
|
</span><span id="L-1351"><a href="#L-1351"><span class="linenos">1351</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
|
|
</span><span id="L-1352"><a href="#L-1352"><span class="linenos">1352</span></a>
|
|
</span><span id="L-1353"><a href="#L-1353"><span class="linenos">1353</span></a> <span class="k">while</span> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="p">:</span>
|
|
</span><span id="L-1354"><a href="#L-1354"><span class="linenos">1354</span></a> <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-1355"><a href="#L-1355"><span class="linenos">1355</span></a>
|
|
</span><span id="L-1356"><a href="#L-1356"><span class="linenos">1356</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">):</span>
|
|
</span><span id="L-1357"><a href="#L-1357"><span class="linenos">1357</span></a> <span class="k">if</span> <span class="n">comments</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">comments</span><span class="p">:</span>
|
|
</span><span id="L-1358"><a href="#L-1358"><span class="linenos">1358</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">" /*</span><span class="si">{</span><span class="s1">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">comments</span><span class="p">)</span><span class="si">}</span><span class="s2">*/"</span><span class="p">)</span>
|
|
</span><span id="L-1359"><a href="#L-1359"><span class="linenos">1359</span></a>
|
|
</span><span id="L-1360"><a href="#L-1360"><span class="linenos">1360</span></a> <span class="n">exp_handler_name</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">key</span><span class="si">}</span><span class="s2">_sql"</span>
|
|
</span><span id="L-1361"><a href="#L-1361"><span class="linenos">1361</span></a>
|
|
</span><span id="L-1362"><a href="#L-1362"><span class="linenos">1362</span></a> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exp_handler_name</span><span class="p">):</span>
|
|
</span><span id="L-1363"><a href="#L-1363"><span class="linenos">1363</span></a> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exp_handler_name</span><span class="p">)(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="L-1364"><a href="#L-1364"><span class="linenos">1364</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Func</span><span class="p">):</span>
|
|
</span><span id="L-1365"><a href="#L-1365"><span class="linenos">1365</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_function</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="L-1366"><a href="#L-1366"><span class="linenos">1366</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1367"><a href="#L-1367"><span class="linenos">1367</span></a> <span class="n">key</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">key</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="L-1368"><a href="#L-1368"><span class="linenos">1368</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2"> "</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="k">else</span> <span class="n">key</span><span class="p">)</span>
|
|
</span><span id="L-1369"><a href="#L-1369"><span class="linenos">1369</span></a> <span class="k">elif</span> <span class="nb">type</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="ow">is</span> <span class="nb">list</span><span class="p">:</span>
|
|
</span><span id="L-1370"><a href="#L-1370"><span class="linenos">1370</span></a> <span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">node</span><span class="p">):</span>
|
|
</span><span id="L-1371"><a href="#L-1371"><span class="linenos">1371</span></a> <span class="k">if</span> <span class="n">n</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1372"><a href="#L-1372"><span class="linenos">1372</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">n</span><span class="p">,</span> <span class="s2">","</span><span class="p">))</span>
|
|
</span><span id="L-1373"><a href="#L-1373"><span class="linenos">1373</span></a> <span class="k">if</span> <span class="n">node</span><span class="p">:</span>
|
|
</span><span id="L-1374"><a href="#L-1374"><span class="linenos">1374</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-1375"><a href="#L-1375"><span class="linenos">1375</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1376"><a href="#L-1376"><span class="linenos">1376</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1377"><a href="#L-1377"><span class="linenos">1377</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">node</span><span class="p">))</span>
|
|
</span><span id="L-1378"><a href="#L-1378"><span class="linenos">1378</span></a>
|
|
</span><span id="L-1379"><a href="#L-1379"><span class="linenos">1379</span></a> <span class="k">return</span> <span class="s2">""</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="p">)</span>
|
|
</span><span id="L-1380"><a href="#L-1380"><span class="linenos">1380</span></a>
|
|
</span><span id="L-1381"><a href="#L-1381"><span class="linenos">1381</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">add_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1382"><a href="#L-1382"><span class="linenos">1382</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" + "</span><span class="p">)</span>
|
|
</span><span id="L-1383"><a href="#L-1383"><span class="linenos">1383</span></a>
|
|
</span><span id="L-1384"><a href="#L-1384"><span class="linenos">1384</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">alias_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1385"><a href="#L-1385"><span class="linenos">1385</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1386"><a href="#L-1386"><span class="linenos">1386</span></a> <span class="p">(</span>
|
|
</span><span id="L-1387"><a href="#L-1387"><span class="linenos">1387</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">),</span>
|
|
</span><span id="L-1388"><a href="#L-1388"><span class="linenos">1388</span></a> <span class="s2">" AS "</span><span class="p">,</span>
|
|
</span><span id="L-1389"><a href="#L-1389"><span class="linenos">1389</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"this"</span><span class="p">),</span>
|
|
</span><span id="L-1390"><a href="#L-1390"><span class="linenos">1390</span></a> <span class="p">)</span>
|
|
</span><span id="L-1391"><a href="#L-1391"><span class="linenos">1391</span></a> <span class="p">)</span>
|
|
</span><span id="L-1392"><a href="#L-1392"><span class="linenos">1392</span></a>
|
|
</span><span id="L-1393"><a href="#L-1393"><span class="linenos">1393</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">and_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1394"><a href="#L-1394"><span class="linenos">1394</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" AND "</span><span class="p">)</span>
|
|
</span><span id="L-1395"><a href="#L-1395"><span class="linenos">1395</span></a>
|
|
</span><span id="L-1396"><a href="#L-1396"><span class="linenos">1396</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">anonymous_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Anonymous</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1397"><a href="#L-1397"><span class="linenos">1397</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-1398"><a href="#L-1398"><span class="linenos">1398</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
|
|
</span><span id="L-1399"><a href="#L-1399"><span class="linenos">1399</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="L-1400"><a href="#L-1400"><span class="linenos">1400</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">):</span>
|
|
</span><span id="L-1401"><a href="#L-1401"><span class="linenos">1401</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="L-1402"><a href="#L-1402"><span class="linenos">1402</span></a> <span class="n">name</span> <span class="o">=</span> <span class="sa">f</span><span class="s1">'"</span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s1">"'</span> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">else</span> <span class="n">name</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="L-1403"><a href="#L-1403"><span class="linenos">1403</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="L-1404"><a href="#L-1404"><span class="linenos">1404</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
|
|
</span><span id="L-1405"><a href="#L-1405"><span class="linenos">1405</span></a> <span class="sa">f</span><span class="s2">"Anonymous.this expects a str or an Identifier, got '</span><span class="si">{</span><span class="n">this</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s2">'."</span>
|
|
</span><span id="L-1406"><a href="#L-1406"><span class="linenos">1406</span></a> <span class="p">)</span>
|
|
</span><span id="L-1407"><a href="#L-1407"><span class="linenos">1407</span></a>
|
|
</span><span id="L-1408"><a href="#L-1408"><span class="linenos">1408</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1409"><a href="#L-1409"><span class="linenos">1409</span></a> <span class="p">(</span>
|
|
</span><span id="L-1410"><a href="#L-1410"><span class="linenos">1410</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="L-1411"><a href="#L-1411"><span class="linenos">1411</span></a> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">,</span>
|
|
</span><span id="L-1412"><a href="#L-1412"><span class="linenos">1412</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="L-1413"><a href="#L-1413"><span class="linenos">1413</span></a> <span class="n">name</span><span class="p">,</span>
|
|
</span><span id="L-1414"><a href="#L-1414"><span class="linenos">1414</span></a> <span class="p">)</span>
|
|
</span><span id="L-1415"><a href="#L-1415"><span class="linenos">1415</span></a> <span class="p">)</span>
|
|
</span><span id="L-1416"><a href="#L-1416"><span class="linenos">1416</span></a>
|
|
</span><span id="L-1417"><a href="#L-1417"><span class="linenos">1417</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">between_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1418"><a href="#L-1418"><span class="linenos">1418</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1419"><a href="#L-1419"><span class="linenos">1419</span></a> <span class="p">(</span>
|
|
</span><span id="L-1420"><a href="#L-1420"><span class="linenos">1420</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"high"</span><span class="p">),</span>
|
|
</span><span id="L-1421"><a href="#L-1421"><span class="linenos">1421</span></a> <span class="s2">" AND "</span><span class="p">,</span>
|
|
</span><span id="L-1422"><a href="#L-1422"><span class="linenos">1422</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"low"</span><span class="p">),</span>
|
|
</span><span id="L-1423"><a href="#L-1423"><span class="linenos">1423</span></a> <span class="s2">" BETWEEN "</span><span class="p">,</span>
|
|
</span><span id="L-1424"><a href="#L-1424"><span class="linenos">1424</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="L-1425"><a href="#L-1425"><span class="linenos">1425</span></a> <span class="p">)</span>
|
|
</span><span id="L-1426"><a href="#L-1426"><span class="linenos">1426</span></a> <span class="p">)</span>
|
|
</span><span id="L-1427"><a href="#L-1427"><span class="linenos">1427</span></a>
|
|
</span><span id="L-1428"><a href="#L-1428"><span class="linenos">1428</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">boolean_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1429"><a href="#L-1429"><span class="linenos">1429</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"TRUE"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span> <span class="k">else</span> <span class="s2">"FALSE"</span><span class="p">)</span>
|
|
</span><span id="L-1430"><a href="#L-1430"><span class="linenos">1430</span></a>
|
|
</span><span id="L-1431"><a href="#L-1431"><span class="linenos">1431</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">bracket_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Bracket</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1432"><a href="#L-1432"><span class="linenos">1432</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1433"><a href="#L-1433"><span class="linenos">1433</span></a> <span class="p">(</span>
|
|
</span><span id="L-1434"><a href="#L-1434"><span class="linenos">1434</span></a> <span class="s2">"]"</span><span class="p">,</span>
|
|
</span><span id="L-1435"><a href="#L-1435"><span class="linenos">1435</span></a> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">,</span>
|
|
</span><span id="L-1436"><a href="#L-1436"><span class="linenos">1436</span></a> <span class="s2">"["</span><span class="p">,</span>
|
|
</span><span id="L-1437"><a href="#L-1437"><span class="linenos">1437</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="L-1438"><a href="#L-1438"><span class="linenos">1438</span></a> <span class="p">)</span>
|
|
</span><span id="L-1439"><a href="#L-1439"><span class="linenos">1439</span></a> <span class="p">)</span>
|
|
</span><span id="L-1440"><a href="#L-1440"><span class="linenos">1440</span></a>
|
|
</span><span id="L-1441"><a href="#L-1441"><span class="linenos">1441</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">column_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1442"><a href="#L-1442"><span class="linenos">1442</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">parts</span><span class="p">):</span>
|
|
</span><span id="L-1443"><a href="#L-1443"><span class="linenos">1443</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">p</span><span class="p">,</span> <span class="s2">"."</span><span class="p">))</span>
|
|
</span><span id="L-1444"><a href="#L-1444"><span class="linenos">1444</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-1445"><a href="#L-1445"><span class="linenos">1445</span></a>
|
|
</span><span id="L-1446"><a href="#L-1446"><span class="linenos">1446</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">datatype_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1447"><a href="#L-1447"><span class="linenos">1447</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1448"><a href="#L-1448"><span class="linenos">1448</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2"> "</span><span class="p">)</span>
|
|
</span><span id="L-1449"><a href="#L-1449"><span class="linenos">1449</span></a>
|
|
</span><span id="L-1450"><a href="#L-1450"><span class="linenos">1450</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">div_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1451"><a href="#L-1451"><span class="linenos">1451</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" / "</span><span class="p">)</span>
|
|
</span><span id="L-1452"><a href="#L-1452"><span class="linenos">1452</span></a>
|
|
</span><span id="L-1453"><a href="#L-1453"><span class="linenos">1453</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">dot_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Dot</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1454"><a href="#L-1454"><span class="linenos">1454</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"."</span><span class="p">)</span>
|
|
</span><span id="L-1455"><a href="#L-1455"><span class="linenos">1455</span></a>
|
|
</span><span id="L-1456"><a href="#L-1456"><span class="linenos">1456</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">eq_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1457"><a href="#L-1457"><span class="linenos">1457</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" = "</span><span class="p">)</span>
|
|
</span><span id="L-1458"><a href="#L-1458"><span class="linenos">1458</span></a>
|
|
</span><span id="L-1459"><a href="#L-1459"><span class="linenos">1459</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">from_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1460"><a href="#L-1460"><span class="linenos">1460</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">"FROM "</span><span class="p">))</span>
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|
</span><span id="L-1461"><a href="#L-1461"><span class="linenos">1461</span></a>
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|
</span><span id="L-1462"><a href="#L-1462"><span class="linenos">1462</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gt_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1463"><a href="#L-1463"><span class="linenos">1463</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" > "</span><span class="p">)</span>
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|
</span><span id="L-1464"><a href="#L-1464"><span class="linenos">1464</span></a>
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|
</span><span id="L-1465"><a href="#L-1465"><span class="linenos">1465</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gte_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1466"><a href="#L-1466"><span class="linenos">1466</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" >= "</span><span class="p">)</span>
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|
</span><span id="L-1467"><a href="#L-1467"><span class="linenos">1467</span></a>
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|
</span><span id="L-1468"><a href="#L-1468"><span class="linenos">1468</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">identifier_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="L-1469"><a href="#L-1469"><span class="linenos">1469</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s1">'"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="si">}</span><span class="s1">"'</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">quoted</span> <span class="k">else</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
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</span><span id="L-1470"><a href="#L-1470"><span class="linenos">1470</span></a>
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|
</span><span id="L-1471"><a href="#L-1471"><span class="linenos">1471</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">ilike_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ILike</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="L-1472"><a href="#L-1472"><span class="linenos">1472</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" ILIKE "</span><span class="p">)</span>
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|
</span><span id="L-1473"><a href="#L-1473"><span class="linenos">1473</span></a>
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|
</span><span id="L-1474"><a href="#L-1474"><span class="linenos">1474</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">in_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="L-1475"><a href="#L-1475"><span class="linenos">1475</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">")"</span><span class="p">)</span>
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</span><span id="L-1476"><a href="#L-1476"><span class="linenos">1476</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="L-1477"><a href="#L-1477"><span class="linenos">1477</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1478"><a href="#L-1478"><span class="linenos">1478</span></a> <span class="p">(</span>
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|
</span><span id="L-1479"><a href="#L-1479"><span class="linenos">1479</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="L-1480"><a href="#L-1480"><span class="linenos">1480</span></a> <span class="s2">" IN "</span><span class="p">,</span>
|
|
</span><span id="L-1481"><a href="#L-1481"><span class="linenos">1481</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
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|
</span><span id="L-1482"><a href="#L-1482"><span class="linenos">1482</span></a> <span class="p">)</span>
|
|
</span><span id="L-1483"><a href="#L-1483"><span class="linenos">1483</span></a> <span class="p">)</span>
|
|
</span><span id="L-1484"><a href="#L-1484"><span class="linenos">1484</span></a>
|
|
</span><span id="L-1485"><a href="#L-1485"><span class="linenos">1485</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">intdiv_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">IntDiv</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1486"><a href="#L-1486"><span class="linenos">1486</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" DIV "</span><span class="p">)</span>
|
|
</span><span id="L-1487"><a href="#L-1487"><span class="linenos">1487</span></a>
|
|
</span><span id="L-1488"><a href="#L-1488"><span class="linenos">1488</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">is_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1489"><a href="#L-1489"><span class="linenos">1489</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" IS "</span><span class="p">)</span>
|
|
</span><span id="L-1490"><a href="#L-1490"><span class="linenos">1490</span></a>
|
|
</span><span id="L-1491"><a href="#L-1491"><span class="linenos">1491</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">like_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Like</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1492"><a href="#L-1492"><span class="linenos">1492</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" Like "</span><span class="p">)</span>
|
|
</span><span id="L-1493"><a href="#L-1493"><span class="linenos">1493</span></a>
|
|
</span><span id="L-1494"><a href="#L-1494"><span class="linenos">1494</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">literal_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1495"><a href="#L-1495"><span class="linenos">1495</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"'</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="si">}</span><span class="s2">'"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> <span class="k">else</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="L-1496"><a href="#L-1496"><span class="linenos">1496</span></a>
|
|
</span><span id="L-1497"><a href="#L-1497"><span class="linenos">1497</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">lt_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1498"><a href="#L-1498"><span class="linenos">1498</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" < "</span><span class="p">)</span>
|
|
</span><span id="L-1499"><a href="#L-1499"><span class="linenos">1499</span></a>
|
|
</span><span id="L-1500"><a href="#L-1500"><span class="linenos">1500</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">lte_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1501"><a href="#L-1501"><span class="linenos">1501</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" <= "</span><span class="p">)</span>
|
|
</span><span id="L-1502"><a href="#L-1502"><span class="linenos">1502</span></a>
|
|
</span><span id="L-1503"><a href="#L-1503"><span class="linenos">1503</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">mod_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mod</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1504"><a href="#L-1504"><span class="linenos">1504</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" % "</span><span class="p">)</span>
|
|
</span><span id="L-1505"><a href="#L-1505"><span class="linenos">1505</span></a>
|
|
</span><span id="L-1506"><a href="#L-1506"><span class="linenos">1506</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">mul_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="L-1507"><a href="#L-1507"><span class="linenos">1507</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" * "</span><span class="p">)</span>
|
|
</span><span id="L-1508"><a href="#L-1508"><span class="linenos">1508</span></a>
|
|
</span><span id="L-1509"><a href="#L-1509"><span class="linenos">1509</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">neg_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1510"><a href="#L-1510"><span class="linenos">1510</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"-"</span><span class="p">)</span>
|
|
</span><span id="L-1511"><a href="#L-1511"><span class="linenos">1511</span></a>
|
|
</span><span id="L-1512"><a href="#L-1512"><span class="linenos">1512</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">neq_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1513"><a href="#L-1513"><span class="linenos">1513</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" <> "</span><span class="p">)</span>
|
|
</span><span id="L-1514"><a href="#L-1514"><span class="linenos">1514</span></a>
|
|
</span><span id="L-1515"><a href="#L-1515"><span class="linenos">1515</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">not_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1516"><a href="#L-1516"><span class="linenos">1516</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"NOT "</span><span class="p">)</span>
|
|
</span><span id="L-1517"><a href="#L-1517"><span class="linenos">1517</span></a>
|
|
</span><span id="L-1518"><a href="#L-1518"><span class="linenos">1518</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">null_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1519"><a href="#L-1519"><span class="linenos">1519</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"NULL"</span><span class="p">)</span>
|
|
</span><span id="L-1520"><a href="#L-1520"><span class="linenos">1520</span></a>
|
|
</span><span id="L-1521"><a href="#L-1521"><span class="linenos">1521</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">or_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1522"><a href="#L-1522"><span class="linenos">1522</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" OR "</span><span class="p">)</span>
|
|
</span><span id="L-1523"><a href="#L-1523"><span class="linenos">1523</span></a>
|
|
</span><span id="L-1524"><a href="#L-1524"><span class="linenos">1524</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">paren_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1525"><a href="#L-1525"><span class="linenos">1525</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1526"><a href="#L-1526"><span class="linenos">1526</span></a> <span class="p">(</span>
|
|
</span><span id="L-1527"><a href="#L-1527"><span class="linenos">1527</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="L-1528"><a href="#L-1528"><span class="linenos">1528</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="L-1529"><a href="#L-1529"><span class="linenos">1529</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="L-1530"><a href="#L-1530"><span class="linenos">1530</span></a> <span class="p">)</span>
|
|
</span><span id="L-1531"><a href="#L-1531"><span class="linenos">1531</span></a> <span class="p">)</span>
|
|
</span><span id="L-1532"><a href="#L-1532"><span class="linenos">1532</span></a>
|
|
</span><span id="L-1533"><a href="#L-1533"><span class="linenos">1533</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">sub_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1534"><a href="#L-1534"><span class="linenos">1534</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" - "</span><span class="p">)</span>
|
|
</span><span id="L-1535"><a href="#L-1535"><span class="linenos">1535</span></a>
|
|
</span><span id="L-1536"><a href="#L-1536"><span class="linenos">1536</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">subquery_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subquery</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1537"><a href="#L-1537"><span class="linenos">1537</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
|
</span><span id="L-1538"><a href="#L-1538"><span class="linenos">1538</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span>
|
|
</span><span id="L-1539"><a href="#L-1539"><span class="linenos">1539</span></a> <span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
|
|
</span><span id="L-1540"><a href="#L-1540"><span class="linenos">1540</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span>
|
|
</span><span id="L-1541"><a href="#L-1541"><span class="linenos">1541</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="s2">")"</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">"("</span><span class="p">))</span>
|
|
</span><span id="L-1542"><a href="#L-1542"><span class="linenos">1542</span></a>
|
|
</span><span id="L-1543"><a href="#L-1543"><span class="linenos">1543</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">table_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1544"><a href="#L-1544"><span class="linenos">1544</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">4</span><span class="p">)</span>
|
|
</span><span id="L-1545"><a href="#L-1545"><span class="linenos">1545</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span>
|
|
</span><span id="L-1546"><a href="#L-1546"><span class="linenos">1546</span></a> <span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
|
|
</span><span id="L-1547"><a href="#L-1547"><span class="linenos">1547</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span>
|
|
</span><span id="L-1548"><a href="#L-1548"><span class="linenos">1548</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">parts</span><span class="p">):</span>
|
|
</span><span id="L-1549"><a href="#L-1549"><span class="linenos">1549</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">p</span><span class="p">,</span> <span class="s2">"."</span><span class="p">))</span>
|
|
</span><span id="L-1550"><a href="#L-1550"><span class="linenos">1550</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="L-1551"><a href="#L-1551"><span class="linenos">1551</span></a>
|
|
</span><span id="L-1552"><a href="#L-1552"><span class="linenos">1552</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">tablealias_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1553"><a href="#L-1553"><span class="linenos">1553</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">columns</span>
|
|
</span><span id="L-1554"><a href="#L-1554"><span class="linenos">1554</span></a>
|
|
</span><span id="L-1555"><a href="#L-1555"><span class="linenos">1555</span></a> <span class="k">if</span> <span class="n">columns</span><span class="p">:</span>
|
|
</span><span id="L-1556"><a href="#L-1556"><span class="linenos">1556</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="s2">")"</span><span class="p">,</span> <span class="n">columns</span><span class="p">,</span> <span class="s2">"("</span><span class="p">))</span>
|
|
</span><span id="L-1557"><a href="#L-1557"><span class="linenos">1557</span></a>
|
|
</span><span id="L-1558"><a href="#L-1558"><span class="linenos">1558</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">" AS "</span><span class="p">))</span>
|
|
</span><span id="L-1559"><a href="#L-1559"><span class="linenos">1559</span></a>
|
|
</span><span id="L-1560"><a href="#L-1560"><span class="linenos">1560</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">var_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Var</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1561"><a href="#L-1561"><span class="linenos">1561</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="L-1562"><a href="#L-1562"><span class="linenos">1562</span></a>
|
|
</span><span id="L-1563"><a href="#L-1563"><span class="linenos">1563</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_binary</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">,</span> <span class="n">op</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1564"><a href="#L-1564"><span class="linenos">1564</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">op</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
|
|
</span><span id="L-1565"><a href="#L-1565"><span class="linenos">1565</span></a>
|
|
</span><span id="L-1566"><a href="#L-1566"><span class="linenos">1566</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_unary</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Unary</span><span class="p">,</span> <span class="n">op</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1567"><a href="#L-1567"><span class="linenos">1567</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">op</span><span class="p">))</span>
|
|
</span><span id="L-1568"><a href="#L-1568"><span class="linenos">1568</span></a>
|
|
</span><span id="L-1569"><a href="#L-1569"><span class="linenos">1569</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Func</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1570"><a href="#L-1570"><span class="linenos">1570</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="L-1571"><a href="#L-1571"><span class="linenos">1571</span></a> <span class="p">(</span>
|
|
</span><span id="L-1572"><a href="#L-1572"><span class="linenos">1572</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="L-1573"><a href="#L-1573"><span class="linenos">1573</span></a> <span class="nb">list</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()),</span>
|
|
</span><span id="L-1574"><a href="#L-1574"><span class="linenos">1574</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="L-1575"><a href="#L-1575"><span class="linenos">1575</span></a> <span class="n">e</span><span class="o">.</span><span class="n">sql_name</span><span class="p">(),</span>
|
|
</span><span id="L-1576"><a href="#L-1576"><span class="linenos">1576</span></a> <span class="p">)</span>
|
|
</span><span id="L-1577"><a href="#L-1577"><span class="linenos">1577</span></a> <span class="p">)</span>
|
|
</span><span id="L-1578"><a href="#L-1578"><span class="linenos">1578</span></a>
|
|
</span><span id="L-1579"><a href="#L-1579"><span class="linenos">1579</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_args</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">arg_index</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="L-1580"><a href="#L-1580"><span class="linenos">1580</span></a> <span class="n">kvs</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="L-1581"><a href="#L-1581"><span class="linenos">1581</span></a> <span class="n">arg_types</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">arg_types</span><span class="p">)[</span><span class="n">arg_index</span><span class="p">:]</span> <span class="k">if</span> <span class="n">arg_index</span> <span class="k">else</span> <span class="n">node</span><span class="o">.</span><span class="n">arg_types</span>
|
|
</span><span id="L-1582"><a href="#L-1582"><span class="linenos">1582</span></a>
|
|
</span><span id="L-1583"><a href="#L-1583"><span class="linenos">1583</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">arg_types</span> <span class="ow">or</span> <span class="n">arg_types</span><span class="p">:</span>
|
|
</span><span id="L-1584"><a href="#L-1584"><span class="linenos">1584</span></a> <span class="n">v</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">k</span><span class="p">)</span>
|
|
</span><span id="L-1585"><a href="#L-1585"><span class="linenos">1585</span></a>
|
|
</span><span id="L-1586"><a href="#L-1586"><span class="linenos">1586</span></a> <span class="k">if</span> <span class="n">v</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="L-1587"><a href="#L-1587"><span class="linenos">1587</span></a> <span class="n">kvs</span><span class="o">.</span><span class="n">append</span><span class="p">([</span><span class="sa">f</span><span class="s2">":</span><span class="si">{</span><span class="n">k</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> <span class="n">v</span><span class="p">])</span>
|
|
</span><span id="L-1588"><a href="#L-1588"><span class="linenos">1588</span></a> <span class="k">if</span> <span class="n">kvs</span><span class="p">:</span>
|
|
</span><span id="L-1589"><a href="#L-1589"><span class="linenos">1589</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">kvs</span><span class="p">)</span>
|
|
</span><span id="L-1590"><a href="#L-1590"><span class="linenos">1590</span></a> <span class="k">return</span> <span class="kc">True</span>
|
|
</span><span id="L-1591"><a href="#L-1591"><span class="linenos">1591</span></a> <span class="k">return</span> <span class="kc">False</span>
|
|
</span></pre></div>
|
|
|
|
|
|
</section>
|
|
<section id="logger">
|
|
<div class="attr variable">
|
|
<span class="name">logger</span> =
|
|
<span class="default_value"><Logger sqlglot (WARNING)></span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#logger"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="FINAL">
|
|
<div class="attr variable">
|
|
<span class="name">FINAL</span> =
|
|
<span class="default_value">'final'</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#FINAL"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="TINYINT_MIN">
|
|
<div class="attr variable">
|
|
<span class="name">TINYINT_MIN</span> =
|
|
<span class="default_value">-128</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#TINYINT_MIN"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="TINYINT_MAX">
|
|
<div class="attr variable">
|
|
<span class="name">TINYINT_MAX</span> =
|
|
<span class="default_value">127</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#TINYINT_MAX"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="UTINYINT_MIN">
|
|
<div class="attr variable">
|
|
<span class="name">UTINYINT_MIN</span> =
|
|
<span class="default_value">0</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#UTINYINT_MIN"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="UTINYINT_MAX">
|
|
<div class="attr variable">
|
|
<span class="name">UTINYINT_MAX</span> =
|
|
<span class="default_value">255</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#UTINYINT_MAX"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="UnsupportedUnit">
|
|
<input id="UnsupportedUnit-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr class">
|
|
|
|
<span class="def">class</span>
|
|
<span class="name">UnsupportedUnit</span><wbr>(<span class="base">builtins.Exception</span>):
|
|
|
|
<label class="view-source-button" for="UnsupportedUnit-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#UnsupportedUnit"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="UnsupportedUnit-36"><a href="#UnsupportedUnit-36"><span class="linenos">36</span></a><span class="k">class</span><span class="w"> </span><span class="nc">UnsupportedUnit</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
|
|
</span><span id="UnsupportedUnit-37"><a href="#UnsupportedUnit-37"><span class="linenos">37</span></a> <span class="k">pass</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Common base class for all non-exit exceptions.</p>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="simplify">
|
|
<input id="simplify-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">simplify</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span>,</span><span class="param"> <span class="n">constant_propagation</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span>,</span><span class="param"> <span class="n">dialect</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n"><a href="../dialects.html#Dialect">sqlglot.dialects.Dialect</a></span><span class="p">,</span> <span class="n">Type</span><span class="p">[</span><span class="n"><a href="../dialects.html#Dialect">sqlglot.dialects.Dialect</a></span><span class="p">],</span> <span class="n">NoneType</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">max_depth</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="simplify-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#simplify"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="simplify-40"><a href="#simplify-40"><span class="linenos"> 40</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify</span><span class="p">(</span>
|
|
</span><span id="simplify-41"><a href="#simplify-41"><span class="linenos"> 41</span></a> <span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span>
|
|
</span><span id="simplify-42"><a href="#simplify-42"><span class="linenos"> 42</span></a> <span class="n">constant_propagation</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="simplify-43"><a href="#simplify-43"><span class="linenos"> 43</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">DialectType</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
|
|
</span><span id="simplify-44"><a href="#simplify-44"><span class="linenos"> 44</span></a> <span class="n">max_depth</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
|
|
</span><span id="simplify-45"><a href="#simplify-45"><span class="linenos"> 45</span></a><span class="p">):</span>
|
|
</span><span id="simplify-46"><a href="#simplify-46"><span class="linenos"> 46</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="simplify-47"><a href="#simplify-47"><span class="linenos"> 47</span></a><span class="sd"> Rewrite sqlglot AST to simplify expressions.</span>
|
|
</span><span id="simplify-48"><a href="#simplify-48"><span class="linenos"> 48</span></a>
|
|
</span><span id="simplify-49"><a href="#simplify-49"><span class="linenos"> 49</span></a><span class="sd"> Example:</span>
|
|
</span><span id="simplify-50"><a href="#simplify-50"><span class="linenos"> 50</span></a><span class="sd"> >>> import sqlglot</span>
|
|
</span><span id="simplify-51"><a href="#simplify-51"><span class="linenos"> 51</span></a><span class="sd"> >>> expression = sqlglot.parse_one("TRUE AND TRUE")</span>
|
|
</span><span id="simplify-52"><a href="#simplify-52"><span class="linenos"> 52</span></a><span class="sd"> >>> simplify(expression).sql()</span>
|
|
</span><span id="simplify-53"><a href="#simplify-53"><span class="linenos"> 53</span></a><span class="sd"> 'TRUE'</span>
|
|
</span><span id="simplify-54"><a href="#simplify-54"><span class="linenos"> 54</span></a>
|
|
</span><span id="simplify-55"><a href="#simplify-55"><span class="linenos"> 55</span></a><span class="sd"> Args:</span>
|
|
</span><span id="simplify-56"><a href="#simplify-56"><span class="linenos"> 56</span></a><span class="sd"> expression: expression to simplify</span>
|
|
</span><span id="simplify-57"><a href="#simplify-57"><span class="linenos"> 57</span></a><span class="sd"> constant_propagation: whether the constant propagation rule should be used</span>
|
|
</span><span id="simplify-58"><a href="#simplify-58"><span class="linenos"> 58</span></a><span class="sd"> max_depth: Chains of Connectors (AND, OR, etc) exceeding `max_depth` will be skipped</span>
|
|
</span><span id="simplify-59"><a href="#simplify-59"><span class="linenos"> 59</span></a><span class="sd"> Returns:</span>
|
|
</span><span id="simplify-60"><a href="#simplify-60"><span class="linenos"> 60</span></a><span class="sd"> sqlglot.Expression: simplified expression</span>
|
|
</span><span id="simplify-61"><a href="#simplify-61"><span class="linenos"> 61</span></a><span class="sd"> """</span>
|
|
</span><span id="simplify-62"><a href="#simplify-62"><span class="linenos"> 62</span></a>
|
|
</span><span id="simplify-63"><a href="#simplify-63"><span class="linenos"> 63</span></a> <span class="n">dialect</span> <span class="o">=</span> <span class="n">Dialect</span><span class="o">.</span><span class="n">get_or_raise</span><span class="p">(</span><span class="n">dialect</span><span class="p">)</span>
|
|
</span><span id="simplify-64"><a href="#simplify-64"><span class="linenos"> 64</span></a>
|
|
</span><span id="simplify-65"><a href="#simplify-65"><span class="linenos"> 65</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
|
|
</span><span id="simplify-66"><a href="#simplify-66"><span class="linenos"> 66</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="simplify-67"><a href="#simplify-67"><span class="linenos"> 67</span></a> <span class="n">max_depth</span>
|
|
</span><span id="simplify-68"><a href="#simplify-68"><span class="linenos"> 68</span></a> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span>
|
|
</span><span id="simplify-69"><a href="#simplify-69"><span class="linenos"> 69</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span>
|
|
</span><span id="simplify-70"><a href="#simplify-70"><span class="linenos"> 70</span></a> <span class="p">):</span>
|
|
</span><span id="simplify-71"><a href="#simplify-71"><span class="linenos"> 71</span></a> <span class="n">depth</span> <span class="o">=</span> <span class="n">connector_depth</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span><span id="simplify-72"><a href="#simplify-72"><span class="linenos"> 72</span></a> <span class="k">if</span> <span class="n">depth</span> <span class="o">></span> <span class="n">max_depth</span><span class="p">:</span>
|
|
</span><span id="simplify-73"><a href="#simplify-73"><span class="linenos"> 73</span></a> <span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span>
|
|
</span><span id="simplify-74"><a href="#simplify-74"><span class="linenos"> 74</span></a> <span class="sa">f</span><span class="s2">"Skipping simplification because connector depth </span><span class="si">{</span><span class="n">depth</span><span class="si">}</span><span class="s2"> exceeds max </span><span class="si">{</span><span class="n">max_depth</span><span class="si">}</span><span class="s2">"</span>
|
|
</span><span id="simplify-75"><a href="#simplify-75"><span class="linenos"> 75</span></a> <span class="p">)</span>
|
|
</span><span id="simplify-76"><a href="#simplify-76"><span class="linenos"> 76</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="simplify-77"><a href="#simplify-77"><span class="linenos"> 77</span></a>
|
|
</span><span id="simplify-78"><a href="#simplify-78"><span class="linenos"> 78</span></a> <span class="k">if</span> <span class="n">expression</span><span class="o">.</span><span class="n">meta</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">FINAL</span><span class="p">):</span>
|
|
</span><span id="simplify-79"><a href="#simplify-79"><span class="linenos"> 79</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="simplify-80"><a href="#simplify-80"><span class="linenos"> 80</span></a>
|
|
</span><span id="simplify-81"><a href="#simplify-81"><span class="linenos"> 81</span></a> <span class="c1"># group by expressions cannot be simplified, for example</span>
|
|
</span><span id="simplify-82"><a href="#simplify-82"><span class="linenos"> 82</span></a> <span class="c1"># select x + 1 + 1 FROM y GROUP BY x + 1 + 1</span>
|
|
</span><span id="simplify-83"><a href="#simplify-83"><span class="linenos"> 83</span></a> <span class="c1"># the projection must exactly match the group by key</span>
|
|
</span><span id="simplify-84"><a href="#simplify-84"><span class="linenos"> 84</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"group"</span><span class="p">)</span>
|
|
</span><span id="simplify-85"><a href="#simplify-85"><span class="linenos"> 85</span></a>
|
|
</span><span id="simplify-86"><a href="#simplify-86"><span class="linenos"> 86</span></a> <span class="k">if</span> <span class="n">group</span> <span class="ow">and</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="s2">"selects"</span><span class="p">):</span>
|
|
</span><span id="simplify-87"><a href="#simplify-87"><span class="linenos"> 87</span></a> <span class="n">groups</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">group</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span>
|
|
</span><span id="simplify-88"><a href="#simplify-88"><span class="linenos"> 88</span></a> <span class="n">group</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
|
|
</span><span id="simplify-89"><a href="#simplify-89"><span class="linenos"> 89</span></a>
|
|
</span><span id="simplify-90"><a href="#simplify-90"><span class="linenos"> 90</span></a> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span>
|
|
</span><span id="simplify-91"><a href="#simplify-91"><span class="linenos"> 91</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span>
|
|
</span><span id="simplify-92"><a href="#simplify-92"><span class="linenos"> 92</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span>
|
|
</span><span id="simplify-93"><a href="#simplify-93"><span class="linenos"> 93</span></a> <span class="n">e</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
|
|
</span><span id="simplify-94"><a href="#simplify-94"><span class="linenos"> 94</span></a> <span class="k">break</span>
|
|
</span><span id="simplify-95"><a href="#simplify-95"><span class="linenos"> 95</span></a>
|
|
</span><span id="simplify-96"><a href="#simplify-96"><span class="linenos"> 96</span></a> <span class="n">having</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"having"</span><span class="p">)</span>
|
|
</span><span id="simplify-97"><a href="#simplify-97"><span class="linenos"> 97</span></a> <span class="k">if</span> <span class="n">having</span><span class="p">:</span>
|
|
</span><span id="simplify-98"><a href="#simplify-98"><span class="linenos"> 98</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">having</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span>
|
|
</span><span id="simplify-99"><a href="#simplify-99"><span class="linenos"> 99</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span>
|
|
</span><span id="simplify-100"><a href="#simplify-100"><span class="linenos">100</span></a> <span class="n">having</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
|
|
</span><span id="simplify-101"><a href="#simplify-101"><span class="linenos">101</span></a> <span class="k">break</span>
|
|
</span><span id="simplify-102"><a href="#simplify-102"><span class="linenos">102</span></a>
|
|
</span><span id="simplify-103"><a href="#simplify-103"><span class="linenos">103</span></a> <span class="c1"># Pre-order transformations</span>
|
|
</span><span id="simplify-104"><a href="#simplify-104"><span class="linenos">104</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">expression</span>
|
|
</span><span id="simplify-105"><a href="#simplify-105"><span class="linenos">105</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">rewrite_between</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-106"><a href="#simplify-106"><span class="linenos">106</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">uniq_sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify-107"><a href="#simplify-107"><span class="linenos">107</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">absorb_and_eliminate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify-108"><a href="#simplify-108"><span class="linenos">108</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_concat</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-109"><a href="#simplify-109"><span class="linenos">109</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_conditionals</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-110"><a href="#simplify-110"><span class="linenos">110</span></a>
|
|
</span><span id="simplify-111"><a href="#simplify-111"><span class="linenos">111</span></a> <span class="k">if</span> <span class="n">constant_propagation</span><span class="p">:</span>
|
|
</span><span id="simplify-112"><a href="#simplify-112"><span class="linenos">112</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">propagate_constants</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify-113"><a href="#simplify-113"><span class="linenos">113</span></a>
|
|
</span><span id="simplify-114"><a href="#simplify-114"><span class="linenos">114</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">replace_children</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">_simplify</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span>
|
|
</span><span id="simplify-115"><a href="#simplify-115"><span class="linenos">115</span></a>
|
|
</span><span id="simplify-116"><a href="#simplify-116"><span class="linenos">116</span></a> <span class="c1"># Post-order transformations</span>
|
|
</span><span id="simplify-117"><a href="#simplify-117"><span class="linenos">117</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_not</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-118"><a href="#simplify-118"><span class="linenos">118</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-119"><a href="#simplify-119"><span class="linenos">119</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_connectors</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify-120"><a href="#simplify-120"><span class="linenos">120</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">remove_complements</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify-121"><a href="#simplify-121"><span class="linenos">121</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_coalesce</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-122"><a href="#simplify-122"><span class="linenos">122</span></a> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span>
|
|
</span><span id="simplify-123"><a href="#simplify-123"><span class="linenos">123</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_literals</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify-124"><a href="#simplify-124"><span class="linenos">124</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_equality</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-125"><a href="#simplify-125"><span class="linenos">125</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_parens</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-126"><a href="#simplify-126"><span class="linenos">126</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_datetrunc</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
|
|
</span><span id="simplify-127"><a href="#simplify-127"><span class="linenos">127</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">sort_comparison</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-128"><a href="#simplify-128"><span class="linenos">128</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_startswith</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-129"><a href="#simplify-129"><span class="linenos">129</span></a>
|
|
</span><span id="simplify-130"><a href="#simplify-130"><span class="linenos">130</span></a> <span class="k">if</span> <span class="n">root</span><span class="p">:</span>
|
|
</span><span id="simplify-131"><a href="#simplify-131"><span class="linenos">131</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="simplify-132"><a href="#simplify-132"><span class="linenos">132</span></a> <span class="k">return</span> <span class="n">node</span>
|
|
</span><span id="simplify-133"><a href="#simplify-133"><span class="linenos">133</span></a>
|
|
</span><span id="simplify-134"><a href="#simplify-134"><span class="linenos">134</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">while_changing</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify</span><span class="p">)</span>
|
|
</span><span id="simplify-135"><a href="#simplify-135"><span class="linenos">135</span></a> <span class="n">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span><span id="simplify-136"><a href="#simplify-136"><span class="linenos">136</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Rewrite sqlglot AST to simplify expressions.</p>
|
|
|
|
<h6 id="example">Example:</h6>
|
|
|
|
<blockquote>
|
|
<div class="pdoc-code codehilite">
|
|
<pre><span></span><code><span class="gp">>>> </span><span class="kn">import</span><span class="w"> </span><span class="nn">sqlglot</span>
|
|
<span class="gp">>>> </span><span class="n">expression</span> <span class="o">=</span> <span class="n"><a href="../../sqlglot.html#parse_one">sqlglot.parse_one</a></span><span class="p">(</span><span class="s2">"TRUE AND TRUE"</span><span class="p">)</span>
|
|
<span class="gp">>>> </span><span class="n">simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span><span class="o">.</span><span class="n">sql</span><span class="p">()</span>
|
|
<span class="go">'TRUE'</span>
|
|
</code></pre>
|
|
</div>
|
|
</blockquote>
|
|
|
|
<h6 id="arguments">Arguments:</h6>
|
|
|
|
<ul>
|
|
<li><strong>expression:</strong> expression to simplify</li>
|
|
<li><strong>constant_propagation:</strong> whether the constant propagation rule should be used</li>
|
|
<li><strong>max_depth:</strong> Chains of Connectors (AND, OR, etc) exceeding <code>max_depth</code> will be skipped</li>
|
|
</ul>
|
|
|
|
<h6 id="returns">Returns:</h6>
|
|
|
|
<blockquote>
|
|
<p>sqlglot.Expression: simplified expression</p>
|
|
</blockquote>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="connector_depth">
|
|
<input id="connector_depth-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">connector_depth</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="nb">int</span>:</span></span>
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<label class="view-source-button" for="connector_depth-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#connector_depth"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="connector_depth-139"><a href="#connector_depth-139"><span class="linenos">139</span></a><span class="k">def</span><span class="w"> </span><span class="nf">connector_depth</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
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</span><span id="connector_depth-140"><a href="#connector_depth-140"><span class="linenos">140</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="connector_depth-141"><a href="#connector_depth-141"><span class="linenos">141</span></a><span class="sd"> Determine the maximum depth of a tree of Connectors.</span>
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</span><span id="connector_depth-142"><a href="#connector_depth-142"><span class="linenos">142</span></a>
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</span><span id="connector_depth-143"><a href="#connector_depth-143"><span class="linenos">143</span></a><span class="sd"> For example:</span>
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</span><span id="connector_depth-144"><a href="#connector_depth-144"><span class="linenos">144</span></a><span class="sd"> >>> from sqlglot import parse_one</span>
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</span><span id="connector_depth-145"><a href="#connector_depth-145"><span class="linenos">145</span></a><span class="sd"> >>> connector_depth(parse_one("a AND b AND c AND d"))</span>
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</span><span id="connector_depth-146"><a href="#connector_depth-146"><span class="linenos">146</span></a><span class="sd"> 3</span>
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</span><span id="connector_depth-147"><a href="#connector_depth-147"><span class="linenos">147</span></a><span class="sd"> """</span>
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</span><span id="connector_depth-148"><a href="#connector_depth-148"><span class="linenos">148</span></a> <span class="n">stack</span> <span class="o">=</span> <span class="n">deque</span><span class="p">([(</span><span class="n">expression</span><span class="p">,</span> <span class="mi">0</span><span class="p">)])</span>
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</span><span id="connector_depth-149"><a href="#connector_depth-149"><span class="linenos">149</span></a> <span class="n">max_depth</span> <span class="o">=</span> <span class="mi">0</span>
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</span><span id="connector_depth-150"><a href="#connector_depth-150"><span class="linenos">150</span></a>
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</span><span id="connector_depth-151"><a href="#connector_depth-151"><span class="linenos">151</span></a> <span class="k">while</span> <span class="n">stack</span><span class="p">:</span>
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</span><span id="connector_depth-152"><a href="#connector_depth-152"><span class="linenos">152</span></a> <span class="n">expression</span><span class="p">,</span> <span class="n">depth</span> <span class="o">=</span> <span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
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</span><span id="connector_depth-153"><a href="#connector_depth-153"><span class="linenos">153</span></a>
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</span><span id="connector_depth-154"><a href="#connector_depth-154"><span class="linenos">154</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
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</span><span id="connector_depth-155"><a href="#connector_depth-155"><span class="linenos">155</span></a> <span class="k">continue</span>
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</span><span id="connector_depth-156"><a href="#connector_depth-156"><span class="linenos">156</span></a>
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</span><span id="connector_depth-157"><a href="#connector_depth-157"><span class="linenos">157</span></a> <span class="n">depth</span> <span class="o">+=</span> <span class="mi">1</span>
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</span><span id="connector_depth-158"><a href="#connector_depth-158"><span class="linenos">158</span></a> <span class="n">max_depth</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">depth</span><span class="p">,</span> <span class="n">max_depth</span><span class="p">)</span>
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</span><span id="connector_depth-159"><a href="#connector_depth-159"><span class="linenos">159</span></a>
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</span><span id="connector_depth-160"><a href="#connector_depth-160"><span class="linenos">160</span></a> <span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">depth</span><span class="p">))</span>
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</span><span id="connector_depth-161"><a href="#connector_depth-161"><span class="linenos">161</span></a> <span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">depth</span><span class="p">))</span>
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</span><span id="connector_depth-162"><a href="#connector_depth-162"><span class="linenos">162</span></a>
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</span><span id="connector_depth-163"><a href="#connector_depth-163"><span class="linenos">163</span></a> <span class="k">return</span> <span class="n">max_depth</span>
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</span></pre></div>
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<div class="docstring"><p>Determine the maximum depth of a tree of Connectors.</p>
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<h6 id="for-example">For example:</h6>
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<blockquote>
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<div class="pdoc-code codehilite">
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<pre><span></span><code><span class="gp">>>> </span><span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot</span><span class="w"> </span><span class="kn">import</span> <span class="n">parse_one</span>
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<span class="gp">>>> </span><span class="n">connector_depth</span><span class="p">(</span><span class="n">parse_one</span><span class="p">(</span><span class="s2">"a AND b AND c AND d"</span><span class="p">))</span>
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<span class="go">3</span>
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</code></pre>
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</div>
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</blockquote>
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</div>
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</section>
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<section id="catch">
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<input id="catch-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">catch</span><span class="signature pdoc-code condensed">(<span class="param"><span class="o">*</span><span class="n">exceptions</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="catch-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#catch"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="catch-166"><a href="#catch-166"><span class="linenos">166</span></a><span class="k">def</span><span class="w"> </span><span class="nf">catch</span><span class="p">(</span><span class="o">*</span><span class="n">exceptions</span><span class="p">):</span>
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</span><span id="catch-167"><a href="#catch-167"><span class="linenos">167</span></a><span class="w"> </span><span class="sd">"""Decorator that ignores a simplification function if any of `exceptions` are raised"""</span>
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</span><span id="catch-168"><a href="#catch-168"><span class="linenos">168</span></a>
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</span><span id="catch-169"><a href="#catch-169"><span class="linenos">169</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">decorator</span><span class="p">(</span><span class="n">func</span><span class="p">):</span>
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</span><span id="catch-170"><a href="#catch-170"><span class="linenos">170</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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</span><span id="catch-171"><a href="#catch-171"><span class="linenos">171</span></a> <span class="k">try</span><span class="p">:</span>
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</span><span id="catch-172"><a href="#catch-172"><span class="linenos">172</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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</span><span id="catch-173"><a href="#catch-173"><span class="linenos">173</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span>
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</span><span id="catch-174"><a href="#catch-174"><span class="linenos">174</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="catch-175"><a href="#catch-175"><span class="linenos">175</span></a>
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</span><span id="catch-176"><a href="#catch-176"><span class="linenos">176</span></a> <span class="k">return</span> <span class="n">wrapped</span>
|
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</span><span id="catch-177"><a href="#catch-177"><span class="linenos">177</span></a>
|
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</span><span id="catch-178"><a href="#catch-178"><span class="linenos">178</span></a> <span class="k">return</span> <span class="n">decorator</span>
|
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</span></pre></div>
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<div class="docstring"><p>Decorator that ignores a simplification function if any of <code>exceptions</code> are raised</p>
|
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</div>
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</section>
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<section id="rewrite_between">
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<input id="rewrite_between-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">rewrite_between</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span>:</span></span>
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<label class="view-source-button" for="rewrite_between-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#rewrite_between"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="rewrite_between-181"><a href="#rewrite_between-181"><span class="linenos">181</span></a><span class="k">def</span><span class="w"> </span><span class="nf">rewrite_between</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
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</span><span id="rewrite_between-182"><a href="#rewrite_between-182"><span class="linenos">182</span></a><span class="w"> </span><span class="sd">"""Rewrite x between y and z to x >= y AND x <= z.</span>
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</span><span id="rewrite_between-183"><a href="#rewrite_between-183"><span class="linenos">183</span></a>
|
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</span><span id="rewrite_between-184"><a href="#rewrite_between-184"><span class="linenos">184</span></a><span class="sd"> This is done because comparison simplification is only done on lt/lte/gt/gte.</span>
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</span><span id="rewrite_between-185"><a href="#rewrite_between-185"><span class="linenos">185</span></a><span class="sd"> """</span>
|
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</span><span id="rewrite_between-186"><a href="#rewrite_between-186"><span class="linenos">186</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">):</span>
|
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</span><span id="rewrite_between-187"><a href="#rewrite_between-187"><span class="linenos">187</span></a> <span class="n">negate</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span>
|
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</span><span id="rewrite_between-188"><a href="#rewrite_between-188"><span class="linenos">188</span></a>
|
|
</span><span id="rewrite_between-189"><a href="#rewrite_between-189"><span class="linenos">189</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
|
|
</span><span id="rewrite_between-190"><a href="#rewrite_between-190"><span class="linenos">190</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"low"</span><span class="p">]),</span>
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|
</span><span id="rewrite_between-191"><a href="#rewrite_between-191"><span class="linenos">191</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"high"</span><span class="p">]),</span>
|
|
</span><span id="rewrite_between-192"><a href="#rewrite_between-192"><span class="linenos">192</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="rewrite_between-193"><a href="#rewrite_between-193"><span class="linenos">193</span></a> <span class="p">)</span>
|
|
</span><span id="rewrite_between-194"><a href="#rewrite_between-194"><span class="linenos">194</span></a>
|
|
</span><span id="rewrite_between-195"><a href="#rewrite_between-195"><span class="linenos">195</span></a> <span class="k">if</span> <span class="n">negate</span><span class="p">:</span>
|
|
</span><span id="rewrite_between-196"><a href="#rewrite_between-196"><span class="linenos">196</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
|
|
</span><span id="rewrite_between-197"><a href="#rewrite_between-197"><span class="linenos">197</span></a>
|
|
</span><span id="rewrite_between-198"><a href="#rewrite_between-198"><span class="linenos">198</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Rewrite x between y and z to x >= y AND x <= z.</p>
|
|
|
|
<p>This is done because comparison simplification is only done on lt/lte/gt/gte.</p>
|
|
</div>
|
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|
|
</section>
|
|
<section id="COMPLEMENT_COMPARISONS">
|
|
<div class="attr variable">
|
|
<span class="name">COMPLEMENT_COMPARISONS</span> =
|
|
<input id="COMPLEMENT_COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<label class="view-value-button pdoc-button" for="COMPLEMENT_COMPARISONS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>: <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>: <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>: <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>: <class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>, <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>: <class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>, <class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>: <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>}</span>
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</div>
|
|
<a class="headerlink" href="#COMPLEMENT_COMPARISONS"></a>
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</section>
|
|
<section id="COMPLEMENT_SUBQUERY_PREDICATES">
|
|
<div class="attr variable">
|
|
<span class="name">COMPLEMENT_SUBQUERY_PREDICATES</span> =
|
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<input id="COMPLEMENT_SUBQUERY_PREDICATES-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<label class="view-value-button pdoc-button" for="COMPLEMENT_SUBQUERY_PREDICATES-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#All">sqlglot.expressions.All</a>'>: <class '<a href="../expressions.html#Any">sqlglot.expressions.Any</a>'>, <class '<a href="../expressions.html#Any">sqlglot.expressions.Any</a>'>: <class '<a href="../expressions.html#All">sqlglot.expressions.All</a>'>}</span>
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</div>
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<a class="headerlink" href="#COMPLEMENT_SUBQUERY_PREDICATES"></a>
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</section>
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<section id="simplify_not">
|
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<input id="simplify_not-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">simplify_not</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="simplify_not-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#simplify_not"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_not-216"><a href="#simplify_not-216"><span class="linenos">216</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_not</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="simplify_not-217"><a href="#simplify_not-217"><span class="linenos">217</span></a><span class="w"> </span><span class="sd">"""</span>
|
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</span><span id="simplify_not-218"><a href="#simplify_not-218"><span class="linenos">218</span></a><span class="sd"> Demorgan's Law</span>
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</span><span id="simplify_not-219"><a href="#simplify_not-219"><span class="linenos">219</span></a><span class="sd"> NOT (x OR y) -> NOT x AND NOT y</span>
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</span><span id="simplify_not-220"><a href="#simplify_not-220"><span class="linenos">220</span></a><span class="sd"> NOT (x AND y) -> NOT x OR NOT y</span>
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</span><span id="simplify_not-221"><a href="#simplify_not-221"><span class="linenos">221</span></a><span class="sd"> """</span>
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</span><span id="simplify_not-222"><a href="#simplify_not-222"><span class="linenos">222</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
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</span><span id="simplify_not-223"><a href="#simplify_not-223"><span class="linenos">223</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="simplify_not-224"><a href="#simplify_not-224"><span class="linenos">224</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">this</span><span class="p">):</span>
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|
</span><span id="simplify_not-225"><a href="#simplify_not-225"><span class="linenos">225</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
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|
</span><span id="simplify_not-226"><a href="#simplify_not-226"><span class="linenos">226</span></a> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">COMPLEMENT_COMPARISONS</span><span class="p">:</span>
|
|
</span><span id="simplify_not-227"><a href="#simplify_not-227"><span class="linenos">227</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">expression</span>
|
|
</span><span id="simplify_not-228"><a href="#simplify_not-228"><span class="linenos">228</span></a> <span class="n">complement_subquery_predicate</span> <span class="o">=</span> <span class="n">COMPLEMENT_SUBQUERY_PREDICATES</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="vm">__class__</span><span class="p">)</span>
|
|
</span><span id="simplify_not-229"><a href="#simplify_not-229"><span class="linenos">229</span></a> <span class="k">if</span> <span class="n">complement_subquery_predicate</span><span class="p">:</span>
|
|
</span><span id="simplify_not-230"><a href="#simplify_not-230"><span class="linenos">230</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">complement_subquery_predicate</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">right</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="simplify_not-231"><a href="#simplify_not-231"><span class="linenos">231</span></a>
|
|
</span><span id="simplify_not-232"><a href="#simplify_not-232"><span class="linenos">232</span></a> <span class="k">return</span> <span class="n">COMPLEMENT_COMPARISONS</span><span class="p">[</span><span class="n">this</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">this</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">right</span><span class="p">)</span>
|
|
</span><span id="simplify_not-233"><a href="#simplify_not-233"><span class="linenos">233</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span>
|
|
</span><span id="simplify_not-234"><a href="#simplify_not-234"><span class="linenos">234</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span>
|
|
</span><span id="simplify_not-235"><a href="#simplify_not-235"><span class="linenos">235</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span>
|
|
</span><span id="simplify_not-236"><a href="#simplify_not-236"><span class="linenos">236</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span>
|
|
</span><span id="simplify_not-237"><a href="#simplify_not-237"><span class="linenos">237</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span>
|
|
</span><span id="simplify_not-238"><a href="#simplify_not-238"><span class="linenos">238</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="simplify_not-239"><a href="#simplify_not-239"><span class="linenos">239</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="simplify_not-240"><a href="#simplify_not-240"><span class="linenos">240</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="simplify_not-241"><a href="#simplify_not-241"><span class="linenos">241</span></a> <span class="p">)</span>
|
|
</span><span id="simplify_not-242"><a href="#simplify_not-242"><span class="linenos">242</span></a> <span class="p">)</span>
|
|
</span><span id="simplify_not-243"><a href="#simplify_not-243"><span class="linenos">243</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span>
|
|
</span><span id="simplify_not-244"><a href="#simplify_not-244"><span class="linenos">244</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span>
|
|
</span><span id="simplify_not-245"><a href="#simplify_not-245"><span class="linenos">245</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
|
|
</span><span id="simplify_not-246"><a href="#simplify_not-246"><span class="linenos">246</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="simplify_not-247"><a href="#simplify_not-247"><span class="linenos">247</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
|
|
</span><span id="simplify_not-248"><a href="#simplify_not-248"><span class="linenos">248</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="simplify_not-249"><a href="#simplify_not-249"><span class="linenos">249</span></a> <span class="p">)</span>
|
|
</span><span id="simplify_not-250"><a href="#simplify_not-250"><span class="linenos">250</span></a> <span class="p">)</span>
|
|
</span><span id="simplify_not-251"><a href="#simplify_not-251"><span class="linenos">251</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span>
|
|
</span><span id="simplify_not-252"><a href="#simplify_not-252"><span class="linenos">252</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="simplify_not-253"><a href="#simplify_not-253"><span class="linenos">253</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="simplify_not-254"><a href="#simplify_not-254"><span class="linenos">254</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
|
|
</span><span id="simplify_not-255"><a href="#simplify_not-255"><span class="linenos">255</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="simplify_not-256"><a href="#simplify_not-256"><span class="linenos">256</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
|
|
</span><span id="simplify_not-257"><a href="#simplify_not-257"><span class="linenos">257</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
|
|
</span><span id="simplify_not-258"><a href="#simplify_not-258"><span class="linenos">258</span></a> <span class="c1"># double negation</span>
|
|
</span><span id="simplify_not-259"><a href="#simplify_not-259"><span class="linenos">259</span></a> <span class="c1"># NOT NOT x -> x</span>
|
|
</span><span id="simplify_not-260"><a href="#simplify_not-260"><span class="linenos">260</span></a> <span class="k">return</span> <span class="n">this</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="simplify_not-261"><a href="#simplify_not-261"><span class="linenos">261</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Demorgan's Law
|
|
NOT (x OR y) -> NOT x AND NOT y
|
|
NOT (x AND y) -> NOT x OR NOT y</p>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="flatten">
|
|
<input id="flatten-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">flatten</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="flatten-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#flatten"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="flatten-264"><a href="#flatten-264"><span class="linenos">264</span></a><span class="k">def</span><span class="w"> </span><span class="nf">flatten</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="flatten-265"><a href="#flatten-265"><span class="linenos">265</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="flatten-266"><a href="#flatten-266"><span class="linenos">266</span></a><span class="sd"> A AND (B AND C) -> A AND B AND C</span>
|
|
</span><span id="flatten-267"><a href="#flatten-267"><span class="linenos">267</span></a><span class="sd"> A OR (B OR C) -> A OR B OR C</span>
|
|
</span><span id="flatten-268"><a href="#flatten-268"><span class="linenos">268</span></a><span class="sd"> """</span>
|
|
</span><span id="flatten-269"><a href="#flatten-269"><span class="linenos">269</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
|
|
</span><span id="flatten-270"><a href="#flatten-270"><span class="linenos">270</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">():</span>
|
|
</span><span id="flatten-271"><a href="#flatten-271"><span class="linenos">271</span></a> <span class="n">child</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span>
|
|
</span><span id="flatten-272"><a href="#flatten-272"><span class="linenos">272</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">child</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">):</span>
|
|
</span><span id="flatten-273"><a href="#flatten-273"><span class="linenos">273</span></a> <span class="n">node</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">child</span><span class="p">)</span>
|
|
</span><span id="flatten-274"><a href="#flatten-274"><span class="linenos">274</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>A AND (B AND C) -> A AND B AND C
|
|
A OR (B OR C) -> A OR B OR C</p>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="simplify_connectors">
|
|
<input id="simplify_connectors-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">simplify_connectors</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">root</span><span class="o">=</span><span class="kc">True</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="simplify_connectors-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#simplify_connectors"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_connectors-277"><a href="#simplify_connectors-277"><span class="linenos">277</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-278"><a href="#simplify_connectors-278"><span class="linenos">278</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-279"><a href="#simplify_connectors-279"><span class="linenos">279</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-280"><a href="#simplify_connectors-280"><span class="linenos">280</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-281"><a href="#simplify_connectors-281"><span class="linenos">281</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-282"><a href="#simplify_connectors-282"><span class="linenos">282</span></a> <span class="k">if</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-283"><a href="#simplify_connectors-283"><span class="linenos">283</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-284"><a href="#simplify_connectors-284"><span class="linenos">284</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-285"><a href="#simplify_connectors-285"><span class="linenos">285</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-286"><a href="#simplify_connectors-286"><span class="linenos">286</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-287"><a href="#simplify_connectors-287"><span class="linenos">287</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-288"><a href="#simplify_connectors-288"><span class="linenos">288</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-289"><a href="#simplify_connectors-289"><span class="linenos">289</span></a> <span class="k">return</span> <span class="n">right</span>
|
|
</span><span id="simplify_connectors-290"><a href="#simplify_connectors-290"><span class="linenos">290</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-291"><a href="#simplify_connectors-291"><span class="linenos">291</span></a> <span class="k">return</span> <span class="n">left</span>
|
|
</span><span id="simplify_connectors-292"><a href="#simplify_connectors-292"><span class="linenos">292</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">)</span>
|
|
</span><span id="simplify_connectors-293"><a href="#simplify_connectors-293"><span class="linenos">293</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-294"><a href="#simplify_connectors-294"><span class="linenos">294</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-295"><a href="#simplify_connectors-295"><span class="linenos">295</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-296"><a href="#simplify_connectors-296"><span class="linenos">296</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="simplify_connectors-297"><a href="#simplify_connectors-297"><span class="linenos">297</span></a> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span>
|
|
</span><span id="simplify_connectors-298"><a href="#simplify_connectors-298"><span class="linenos">298</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_false</span><span class="p">(</span><span class="n">right</span><span class="p">))</span>
|
|
</span><span id="simplify_connectors-299"><a href="#simplify_connectors-299"><span class="linenos">299</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">always_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span>
|
|
</span><span id="simplify_connectors-300"><a href="#simplify_connectors-300"><span class="linenos">300</span></a> <span class="p">):</span>
|
|
</span><span id="simplify_connectors-301"><a href="#simplify_connectors-301"><span class="linenos">301</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-302"><a href="#simplify_connectors-302"><span class="linenos">302</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-303"><a href="#simplify_connectors-303"><span class="linenos">303</span></a> <span class="k">return</span> <span class="n">right</span>
|
|
</span><span id="simplify_connectors-304"><a href="#simplify_connectors-304"><span class="linenos">304</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span>
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</span><span id="simplify_connectors-305"><a href="#simplify_connectors-305"><span class="linenos">305</span></a> <span class="k">return</span> <span class="n">left</span>
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|
</span><span id="simplify_connectors-306"><a href="#simplify_connectors-306"><span class="linenos">306</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
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</span><span id="simplify_connectors-307"><a href="#simplify_connectors-307"><span class="linenos">307</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Xor</span><span class="p">):</span>
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</span><span id="simplify_connectors-308"><a href="#simplify_connectors-308"><span class="linenos">308</span></a> <span class="k">if</span> <span class="n">left</span> <span class="o">==</span> <span class="n">right</span><span class="p">:</span>
|
|
</span><span id="simplify_connectors-309"><a href="#simplify_connectors-309"><span class="linenos">309</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
|
|
</span><span id="simplify_connectors-310"><a href="#simplify_connectors-310"><span class="linenos">310</span></a>
|
|
</span><span id="simplify_connectors-311"><a href="#simplify_connectors-311"><span class="linenos">311</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
|
|
</span><span id="simplify_connectors-312"><a href="#simplify_connectors-312"><span class="linenos">312</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_connectors</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
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</span><span id="simplify_connectors-313"><a href="#simplify_connectors-313"><span class="linenos">313</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span></pre></div>
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</section>
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<section id="LT_LTE">
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<div class="attr variable">
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<span class="name">LT_LTE</span> =
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<span class="default_value">(<class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>)</span>
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<a class="headerlink" href="#LT_LTE"></a>
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</section>
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<section id="GT_GTE">
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<div class="attr variable">
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<span class="name">GT_GTE</span> =
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<span class="default_value">(<class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>)</span>
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</div>
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<a class="headerlink" href="#GT_GTE"></a>
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</section>
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<section id="COMPARISONS">
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<div class="attr variable">
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<span class="name">COMPARISONS</span> =
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<input id="COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<label class="view-value-button pdoc-button" for="COMPARISONS-view-value"></label><span class="default_value">(<class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>, <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>, <class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>, <class '<a href="../expressions.html#Is">sqlglot.expressions.Is</a>'>)</span>
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</div>
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<a class="headerlink" href="#COMPARISONS"></a>
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</section>
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<section id="INVERSE_COMPARISONS">
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<div class="attr variable">
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<span class="name">INVERSE_COMPARISONS</span><span class="annotation">: Dict[Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>], Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>]]</span> =
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<input id="INVERSE_COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<label class="view-value-button pdoc-button" for="INVERSE_COMPARISONS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>: <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>: <class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>: <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>: <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>}</span>
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</div>
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<a class="headerlink" href="#INVERSE_COMPARISONS"></a>
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</section>
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<section id="NONDETERMINISTIC">
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<div class="attr variable">
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<span class="name">NONDETERMINISTIC</span> =
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<span class="default_value">(<class '<a href="../expressions.html#Rand">sqlglot.expressions.Rand</a>'>, <class '<a href="../expressions.html#Randn">sqlglot.expressions.Randn</a>'>)</span>
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</div>
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<a class="headerlink" href="#NONDETERMINISTIC"></a>
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</section>
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<section id="AND_OR">
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<div class="attr variable">
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<span class="name">AND_OR</span> =
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<span class="default_value">(<class '<a href="../expressions.html#And">sqlglot.expressions.And</a>'>, <class '<a href="../expressions.html#Or">sqlglot.expressions.Or</a>'>)</span>
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</div>
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<a class="headerlink" href="#AND_OR"></a>
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</section>
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<section id="remove_complements">
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<input id="remove_complements-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">remove_complements</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">root</span><span class="o">=</span><span class="kc">True</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="remove_complements-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#remove_complements"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="remove_complements-400"><a href="#remove_complements-400"><span class="linenos">400</span></a><span class="k">def</span><span class="w"> </span><span class="nf">remove_complements</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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|
</span><span id="remove_complements-401"><a href="#remove_complements-401"><span class="linenos">401</span></a><span class="w"> </span><span class="sd">"""</span>
|
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</span><span id="remove_complements-402"><a href="#remove_complements-402"><span class="linenos">402</span></a><span class="sd"> Removing complements.</span>
|
|
</span><span id="remove_complements-403"><a href="#remove_complements-403"><span class="linenos">403</span></a>
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</span><span id="remove_complements-404"><a href="#remove_complements-404"><span class="linenos">404</span></a><span class="sd"> A AND NOT A -> FALSE</span>
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</span><span id="remove_complements-405"><a href="#remove_complements-405"><span class="linenos">405</span></a><span class="sd"> A OR NOT A -> TRUE</span>
|
|
</span><span id="remove_complements-406"><a href="#remove_complements-406"><span class="linenos">406</span></a><span class="sd"> """</span>
|
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</span><span id="remove_complements-407"><a href="#remove_complements-407"><span class="linenos">407</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">AND_OR</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span>
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|
</span><span id="remove_complements-408"><a href="#remove_complements-408"><span class="linenos">408</span></a> <span class="n">ops</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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|
</span><span id="remove_complements-409"><a href="#remove_complements-409"><span class="linenos">409</span></a> <span class="k">for</span> <span class="n">op</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
|
|
</span><span id="remove_complements-410"><a href="#remove_complements-410"><span class="linenos">410</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">op</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
|
|
</span><span id="remove_complements-411"><a href="#remove_complements-411"><span class="linenos">411</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span>
|
|
</span><span id="remove_complements-412"><a href="#remove_complements-412"><span class="linenos">412</span></a>
|
|
</span><span id="remove_complements-413"><a href="#remove_complements-413"><span class="linenos">413</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
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|
|
<div class="docstring"><p>Removing complements.</p>
|
|
|
|
<p>A AND NOT A -> FALSE
|
|
A OR NOT A -> TRUE</p>
|
|
</div>
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</section>
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<section id="uniq_sort">
|
|
<input id="uniq_sort-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
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|
<span class="def">def</span>
|
|
<span class="name">uniq_sort</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">root</span><span class="o">=</span><span class="kc">True</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="uniq_sort-view-source"><span>View Source</span></label>
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</div>
|
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<a class="headerlink" href="#uniq_sort"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="uniq_sort-416"><a href="#uniq_sort-416"><span class="linenos">416</span></a><span class="k">def</span><span class="w"> </span><span class="nf">uniq_sort</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
|
|
</span><span id="uniq_sort-417"><a href="#uniq_sort-417"><span class="linenos">417</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="uniq_sort-418"><a href="#uniq_sort-418"><span class="linenos">418</span></a><span class="sd"> Uniq and sort a connector.</span>
|
|
</span><span id="uniq_sort-419"><a href="#uniq_sort-419"><span class="linenos">419</span></a>
|
|
</span><span id="uniq_sort-420"><a href="#uniq_sort-420"><span class="linenos">420</span></a><span class="sd"> C AND A AND B AND B -> A AND B AND C</span>
|
|
</span><span id="uniq_sort-421"><a href="#uniq_sort-421"><span class="linenos">421</span></a><span class="sd"> """</span>
|
|
</span><span id="uniq_sort-422"><a href="#uniq_sort-422"><span class="linenos">422</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span>
|
|
</span><span id="uniq_sort-423"><a href="#uniq_sort-423"><span class="linenos">423</span></a> <span class="n">flattened</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
|
|
</span><span id="uniq_sort-424"><a href="#uniq_sort-424"><span class="linenos">424</span></a>
|
|
</span><span id="uniq_sort-425"><a href="#uniq_sort-425"><span class="linenos">425</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Xor</span><span class="p">):</span>
|
|
</span><span id="uniq_sort-426"><a href="#uniq_sort-426"><span class="linenos">426</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">xor</span>
|
|
</span><span id="uniq_sort-427"><a href="#uniq_sort-427"><span class="linenos">427</span></a> <span class="c1"># Do not deduplicate XOR as A XOR A != A if A == True</span>
|
|
</span><span id="uniq_sort-428"><a href="#uniq_sort-428"><span class="linenos">428</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="kc">None</span>
|
|
</span><span id="uniq_sort-429"><a href="#uniq_sort-429"><span class="linenos">429</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">((</span><span class="n">gen</span><span class="p">(</span><span class="n">e</span><span class="p">),</span> <span class="n">e</span><span class="p">)</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">)</span>
|
|
</span><span id="uniq_sort-430"><a href="#uniq_sort-430"><span class="linenos">430</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="uniq_sort-431"><a href="#uniq_sort-431"><span class="linenos">431</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span>
|
|
</span><span id="uniq_sort-432"><a href="#uniq_sort-432"><span class="linenos">432</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="p">{</span><span class="n">gen</span><span class="p">(</span><span class="n">e</span><span class="p">):</span> <span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">}</span>
|
|
</span><span id="uniq_sort-433"><a href="#uniq_sort-433"><span class="linenos">433</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">deduped</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
|
|
</span><span id="uniq_sort-434"><a href="#uniq_sort-434"><span class="linenos">434</span></a>
|
|
</span><span id="uniq_sort-435"><a href="#uniq_sort-435"><span class="linenos">435</span></a> <span class="c1"># check if the operands are already sorted, if not sort them</span>
|
|
</span><span id="uniq_sort-436"><a href="#uniq_sort-436"><span class="linenos">436</span></a> <span class="c1"># A AND C AND B -> A AND B AND C</span>
|
|
</span><span id="uniq_sort-437"><a href="#uniq_sort-437"><span class="linenos">437</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">arr</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span>
|
|
</span><span id="uniq_sort-438"><a href="#uniq_sort-438"><span class="linenos">438</span></a> <span class="k">if</span> <span class="n">sql</span> <span class="o"><</span> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span>
|
|
</span><span id="uniq_sort-439"><a href="#uniq_sort-439"><span class="linenos">439</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="p">(</span><span class="n">e</span> <span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">arr</span><span class="p">)),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
|
|
</span><span id="uniq_sort-440"><a href="#uniq_sort-440"><span class="linenos">440</span></a> <span class="k">break</span>
|
|
</span><span id="uniq_sort-441"><a href="#uniq_sort-441"><span class="linenos">441</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="uniq_sort-442"><a href="#uniq_sort-442"><span class="linenos">442</span></a> <span class="c1"># we didn't have to sort but maybe we need to dedup</span>
|
|
</span><span id="uniq_sort-443"><a href="#uniq_sort-443"><span class="linenos">443</span></a> <span class="k">if</span> <span class="n">deduped</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">deduped</span><span class="p">)</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">flattened</span><span class="p">):</span>
|
|
</span><span id="uniq_sort-444"><a href="#uniq_sort-444"><span class="linenos">444</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="n">deduped</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
|
|
</span><span id="uniq_sort-445"><a href="#uniq_sort-445"><span class="linenos">445</span></a>
|
|
</span><span id="uniq_sort-446"><a href="#uniq_sort-446"><span class="linenos">446</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
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<div class="docstring"><p>Uniq and sort a connector.</p>
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<p>C AND A AND B AND B -> A AND B AND C</p>
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</div>
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</section>
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<section id="absorb_and_eliminate">
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<input id="absorb_and_eliminate-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">absorb_and_eliminate</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">root</span><span class="o">=</span><span class="kc">True</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="absorb_and_eliminate-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#absorb_and_eliminate"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="absorb_and_eliminate-449"><a href="#absorb_and_eliminate-449"><span class="linenos">449</span></a><span class="k">def</span><span class="w"> </span><span class="nf">absorb_and_eliminate</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-450"><a href="#absorb_and_eliminate-450"><span class="linenos">450</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="absorb_and_eliminate-451"><a href="#absorb_and_eliminate-451"><span class="linenos">451</span></a><span class="sd"> absorption:</span>
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</span><span id="absorb_and_eliminate-452"><a href="#absorb_and_eliminate-452"><span class="linenos">452</span></a><span class="sd"> A AND (A OR B) -> A</span>
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</span><span id="absorb_and_eliminate-453"><a href="#absorb_and_eliminate-453"><span class="linenos">453</span></a><span class="sd"> A OR (A AND B) -> A</span>
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</span><span id="absorb_and_eliminate-454"><a href="#absorb_and_eliminate-454"><span class="linenos">454</span></a><span class="sd"> A AND (NOT A OR B) -> A AND B</span>
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</span><span id="absorb_and_eliminate-455"><a href="#absorb_and_eliminate-455"><span class="linenos">455</span></a><span class="sd"> A OR (NOT A AND B) -> A OR B</span>
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</span><span id="absorb_and_eliminate-456"><a href="#absorb_and_eliminate-456"><span class="linenos">456</span></a><span class="sd"> elimination:</span>
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</span><span id="absorb_and_eliminate-457"><a href="#absorb_and_eliminate-457"><span class="linenos">457</span></a><span class="sd"> (A AND B) OR (A AND NOT B) -> A</span>
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</span><span id="absorb_and_eliminate-458"><a href="#absorb_and_eliminate-458"><span class="linenos">458</span></a><span class="sd"> (A OR B) AND (A OR NOT B) -> A</span>
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</span><span id="absorb_and_eliminate-459"><a href="#absorb_and_eliminate-459"><span class="linenos">459</span></a><span class="sd"> """</span>
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</span><span id="absorb_and_eliminate-460"><a href="#absorb_and_eliminate-460"><span class="linenos">460</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">AND_OR</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-461"><a href="#absorb_and_eliminate-461"><span class="linenos">461</span></a> <span class="n">kind</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span>
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</span><span id="absorb_and_eliminate-462"><a href="#absorb_and_eliminate-462"><span class="linenos">462</span></a>
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</span><span id="absorb_and_eliminate-463"><a href="#absorb_and_eliminate-463"><span class="linenos">463</span></a> <span class="n">ops</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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</span><span id="absorb_and_eliminate-464"><a href="#absorb_and_eliminate-464"><span class="linenos">464</span></a>
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</span><span id="absorb_and_eliminate-465"><a href="#absorb_and_eliminate-465"><span class="linenos">465</span></a> <span class="c1"># Initialize lookup tables:</span>
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</span><span id="absorb_and_eliminate-466"><a href="#absorb_and_eliminate-466"><span class="linenos">466</span></a> <span class="c1"># Set of all operands, used to find complements for absorption.</span>
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</span><span id="absorb_and_eliminate-467"><a href="#absorb_and_eliminate-467"><span class="linenos">467</span></a> <span class="n">op_set</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
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</span><span id="absorb_and_eliminate-468"><a href="#absorb_and_eliminate-468"><span class="linenos">468</span></a> <span class="c1"># Sub-operands, used to find subsets for absorption.</span>
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</span><span id="absorb_and_eliminate-469"><a href="#absorb_and_eliminate-469"><span class="linenos">469</span></a> <span class="n">subops</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span>
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</span><span id="absorb_and_eliminate-470"><a href="#absorb_and_eliminate-470"><span class="linenos">470</span></a> <span class="c1"># Pairs of complements, used for elimination.</span>
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</span><span id="absorb_and_eliminate-471"><a href="#absorb_and_eliminate-471"><span class="linenos">471</span></a> <span class="n">pairs</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span>
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</span><span id="absorb_and_eliminate-472"><a href="#absorb_and_eliminate-472"><span class="linenos">472</span></a>
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</span><span id="absorb_and_eliminate-473"><a href="#absorb_and_eliminate-473"><span class="linenos">473</span></a> <span class="c1"># Populate the lookup tables</span>
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</span><span id="absorb_and_eliminate-474"><a href="#absorb_and_eliminate-474"><span class="linenos">474</span></a> <span class="k">for</span> <span class="n">op</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
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</span><span id="absorb_and_eliminate-475"><a href="#absorb_and_eliminate-475"><span class="linenos">475</span></a> <span class="n">op_set</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">op</span><span class="p">)</span>
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</span><span id="absorb_and_eliminate-476"><a href="#absorb_and_eliminate-476"><span class="linenos">476</span></a>
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</span><span id="absorb_and_eliminate-477"><a href="#absorb_and_eliminate-477"><span class="linenos">477</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-478"><a href="#absorb_and_eliminate-478"><span class="linenos">478</span></a> <span class="c1"># In cases like: A OR (A AND B)</span>
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</span><span id="absorb_and_eliminate-479"><a href="#absorb_and_eliminate-479"><span class="linenos">479</span></a> <span class="c1"># Subop will be: ^</span>
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</span><span id="absorb_and_eliminate-480"><a href="#absorb_and_eliminate-480"><span class="linenos">480</span></a> <span class="n">subops</span><span class="p">[</span><span class="n">op</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="n">op</span><span class="p">})</span>
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</span><span id="absorb_and_eliminate-481"><a href="#absorb_and_eliminate-481"><span class="linenos">481</span></a> <span class="k">continue</span>
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</span><span id="absorb_and_eliminate-482"><a href="#absorb_and_eliminate-482"><span class="linenos">482</span></a>
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</span><span id="absorb_and_eliminate-483"><a href="#absorb_and_eliminate-483"><span class="linenos">483</span></a> <span class="c1"># In cases like: (A AND B) OR (A AND B AND C)</span>
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</span><span id="absorb_and_eliminate-484"><a href="#absorb_and_eliminate-484"><span class="linenos">484</span></a> <span class="c1"># Subops will be: ^ ^</span>
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</span><span id="absorb_and_eliminate-485"><a href="#absorb_and_eliminate-485"><span class="linenos">485</span></a> <span class="n">subset</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">op</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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</span><span id="absorb_and_eliminate-486"><a href="#absorb_and_eliminate-486"><span class="linenos">486</span></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">subset</span><span class="p">:</span>
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</span><span id="absorb_and_eliminate-487"><a href="#absorb_and_eliminate-487"><span class="linenos">487</span></a> <span class="n">subops</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">subset</span><span class="p">)</span>
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</span><span id="absorb_and_eliminate-488"><a href="#absorb_and_eliminate-488"><span class="linenos">488</span></a>
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</span><span id="absorb_and_eliminate-489"><a href="#absorb_and_eliminate-489"><span class="linenos">489</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">op</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span>
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</span><span id="absorb_and_eliminate-490"><a href="#absorb_and_eliminate-490"><span class="linenos">490</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-491"><a href="#absorb_and_eliminate-491"><span class="linenos">491</span></a> <span class="n">pairs</span><span class="p">[</span><span class="nb">frozenset</span><span class="p">((</span><span class="n">a</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">b</span><span class="p">))]</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">op</span><span class="p">,</span> <span class="n">b</span><span class="p">))</span>
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</span><span id="absorb_and_eliminate-492"><a href="#absorb_and_eliminate-492"><span class="linenos">492</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-493"><a href="#absorb_and_eliminate-493"><span class="linenos">493</span></a> <span class="n">pairs</span><span class="p">[</span><span class="nb">frozenset</span><span class="p">((</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span><span class="p">))]</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">op</span><span class="p">,</span> <span class="n">a</span><span class="p">))</span>
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</span><span id="absorb_and_eliminate-494"><a href="#absorb_and_eliminate-494"><span class="linenos">494</span></a>
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</span><span id="absorb_and_eliminate-495"><a href="#absorb_and_eliminate-495"><span class="linenos">495</span></a> <span class="k">for</span> <span class="n">op</span> <span class="ow">in</span> <span class="n">ops</span><span class="p">:</span>
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</span><span id="absorb_and_eliminate-496"><a href="#absorb_and_eliminate-496"><span class="linenos">496</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-497"><a href="#absorb_and_eliminate-497"><span class="linenos">497</span></a> <span class="k">continue</span>
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</span><span id="absorb_and_eliminate-498"><a href="#absorb_and_eliminate-498"><span class="linenos">498</span></a>
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</span><span id="absorb_and_eliminate-499"><a href="#absorb_and_eliminate-499"><span class="linenos">499</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">op</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span>
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</span><span id="absorb_and_eliminate-500"><a href="#absorb_and_eliminate-500"><span class="linenos">500</span></a>
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</span><span id="absorb_and_eliminate-501"><a href="#absorb_and_eliminate-501"><span class="linenos">501</span></a> <span class="c1"># Absorb</span>
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</span><span id="absorb_and_eliminate-502"><a href="#absorb_and_eliminate-502"><span class="linenos">502</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">op_set</span><span class="p">:</span>
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</span><span id="absorb_and_eliminate-503"><a href="#absorb_and_eliminate-503"><span class="linenos">503</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span>
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</span><span id="absorb_and_eliminate-504"><a href="#absorb_and_eliminate-504"><span class="linenos">504</span></a> <span class="k">continue</span>
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</span><span id="absorb_and_eliminate-505"><a href="#absorb_and_eliminate-505"><span class="linenos">505</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="ow">in</span> <span class="n">op_set</span><span class="p">:</span>
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</span><span id="absorb_and_eliminate-506"><a href="#absorb_and_eliminate-506"><span class="linenos">506</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span>
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</span><span id="absorb_and_eliminate-507"><a href="#absorb_and_eliminate-507"><span class="linenos">507</span></a> <span class="k">continue</span>
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</span><span id="absorb_and_eliminate-508"><a href="#absorb_and_eliminate-508"><span class="linenos">508</span></a> <span class="n">superset</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">op</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span>
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</span><span id="absorb_and_eliminate-509"><a href="#absorb_and_eliminate-509"><span class="linenos">509</span></a> <span class="k">if</span> <span class="nb">any</span><span class="p">(</span><span class="nb">any</span><span class="p">(</span><span class="n">subset</span> <span class="o"><</span> <span class="n">superset</span> <span class="k">for</span> <span class="n">subset</span> <span class="ow">in</span> <span class="n">subops</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">superset</span><span class="p">):</span>
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</span><span id="absorb_and_eliminate-510"><a href="#absorb_and_eliminate-510"><span class="linenos">510</span></a> <span class="n">op</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span>
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</span><span id="absorb_and_eliminate-511"><a href="#absorb_and_eliminate-511"><span class="linenos">511</span></a> <span class="k">continue</span>
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</span><span id="absorb_and_eliminate-512"><a href="#absorb_and_eliminate-512"><span class="linenos">512</span></a>
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</span><span id="absorb_and_eliminate-513"><a href="#absorb_and_eliminate-513"><span class="linenos">513</span></a> <span class="c1"># Eliminate</span>
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</span><span id="absorb_and_eliminate-514"><a href="#absorb_and_eliminate-514"><span class="linenos">514</span></a> <span class="k">for</span> <span class="n">other</span><span class="p">,</span> <span class="n">complement</span> <span class="ow">in</span> <span class="n">pairs</span><span class="p">[</span><span class="nb">frozenset</span><span class="p">((</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">))]:</span>
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</span><span id="absorb_and_eliminate-515"><a href="#absorb_and_eliminate-515"><span class="linenos">515</span></a> <span class="n">op</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">complement</span><span class="p">)</span>
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</span><span id="absorb_and_eliminate-516"><a href="#absorb_and_eliminate-516"><span class="linenos">516</span></a> <span class="n">other</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">complement</span><span class="p">)</span>
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</span><span id="absorb_and_eliminate-517"><a href="#absorb_and_eliminate-517"><span class="linenos">517</span></a>
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</span><span id="absorb_and_eliminate-518"><a href="#absorb_and_eliminate-518"><span class="linenos">518</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span></pre></div>
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<div class="docstring"><p>absorption:
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A AND (A OR B) -> A
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A OR (A AND B) -> A
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A AND (NOT A OR B) -> A AND B
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A OR (NOT A AND B) -> A OR B
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elimination:
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(A AND B) OR (A AND NOT B) -> A
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(A OR B) AND (A OR NOT B) -> A</p>
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</div>
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</section>
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<section id="propagate_constants">
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<input id="propagate_constants-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">propagate_constants</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">root</span><span class="o">=</span><span class="kc">True</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="propagate_constants-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#propagate_constants"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="propagate_constants-521"><a href="#propagate_constants-521"><span class="linenos">521</span></a><span class="k">def</span><span class="w"> </span><span class="nf">propagate_constants</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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|
</span><span id="propagate_constants-522"><a href="#propagate_constants-522"><span class="linenos">522</span></a><span class="w"> </span><span class="sd">"""</span>
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</span><span id="propagate_constants-523"><a href="#propagate_constants-523"><span class="linenos">523</span></a><span class="sd"> Propagate constants for conjunctions in DNF:</span>
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|
</span><span id="propagate_constants-524"><a href="#propagate_constants-524"><span class="linenos">524</span></a>
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</span><span id="propagate_constants-525"><a href="#propagate_constants-525"><span class="linenos">525</span></a><span class="sd"> SELECT * FROM t WHERE a = b AND b = 5 becomes</span>
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|
</span><span id="propagate_constants-526"><a href="#propagate_constants-526"><span class="linenos">526</span></a><span class="sd"> SELECT * FROM t WHERE a = 5 AND b = 5</span>
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</span><span id="propagate_constants-527"><a href="#propagate_constants-527"><span class="linenos">527</span></a>
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</span><span id="propagate_constants-528"><a href="#propagate_constants-528"><span class="linenos">528</span></a><span class="sd"> Reference: https://www.sqlite.org/optoverview.html</span>
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</span><span id="propagate_constants-529"><a href="#propagate_constants-529"><span class="linenos">529</span></a><span class="sd"> """</span>
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</span><span id="propagate_constants-530"><a href="#propagate_constants-530"><span class="linenos">530</span></a>
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</span><span id="propagate_constants-531"><a href="#propagate_constants-531"><span class="linenos">531</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="propagate_constants-532"><a href="#propagate_constants-532"><span class="linenos">532</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span>
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</span><span id="propagate_constants-533"><a href="#propagate_constants-533"><span class="linenos">533</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">)</span>
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</span><span id="propagate_constants-534"><a href="#propagate_constants-534"><span class="linenos">534</span></a> <span class="ow">and</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">normalize</span><span class="o">.</span><span class="n">normalized</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">dnf</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
|
|
</span><span id="propagate_constants-535"><a href="#propagate_constants-535"><span class="linenos">535</span></a> <span class="p">):</span>
|
|
</span><span id="propagate_constants-536"><a href="#propagate_constants-536"><span class="linenos">536</span></a> <span class="n">constant_mapping</span> <span class="o">=</span> <span class="p">{}</span>
|
|
</span><span id="propagate_constants-537"><a href="#propagate_constants-537"><span class="linenos">537</span></a> <span class="k">for</span> <span class="n">expr</span> <span class="ow">in</span> <span class="n">walk_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">prune</span><span class="o">=</span><span class="k">lambda</span> <span class="n">node</span><span class="p">:</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)):</span>
|
|
</span><span id="propagate_constants-538"><a href="#propagate_constants-538"><span class="linenos">538</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span>
|
|
</span><span id="propagate_constants-539"><a href="#propagate_constants-539"><span class="linenos">539</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expr</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expr</span><span class="o">.</span><span class="n">right</span>
|
|
</span><span id="propagate_constants-540"><a href="#propagate_constants-540"><span class="linenos">540</span></a>
|
|
</span><span id="propagate_constants-541"><a href="#propagate_constants-541"><span class="linenos">541</span></a> <span class="c1"># TODO: create a helper that can be used to detect nested literal expressions such</span>
|
|
</span><span id="propagate_constants-542"><a href="#propagate_constants-542"><span class="linenos">542</span></a> <span class="c1"># as CAST(123456 AS BIGINT), since we usually want to treat those as literals too</span>
|
|
</span><span id="propagate_constants-543"><a href="#propagate_constants-543"><span class="linenos">543</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span>
|
|
</span><span id="propagate_constants-544"><a href="#propagate_constants-544"><span class="linenos">544</span></a> <span class="n">constant_mapping</span><span class="p">[</span><span class="n">l</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">r</span><span class="p">)</span>
|
|
</span><span id="propagate_constants-545"><a href="#propagate_constants-545"><span class="linenos">545</span></a>
|
|
</span><span id="propagate_constants-546"><a href="#propagate_constants-546"><span class="linenos">546</span></a> <span class="k">if</span> <span class="n">constant_mapping</span><span class="p">:</span>
|
|
</span><span id="propagate_constants-547"><a href="#propagate_constants-547"><span class="linenos">547</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">):</span>
|
|
</span><span id="propagate_constants-548"><a href="#propagate_constants-548"><span class="linenos">548</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span>
|
|
</span><span id="propagate_constants-549"><a href="#propagate_constants-549"><span class="linenos">549</span></a> <span class="n">column_id</span><span class="p">,</span> <span class="n">constant</span> <span class="o">=</span> <span class="n">constant_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
|
|
</span><span id="propagate_constants-550"><a href="#propagate_constants-550"><span class="linenos">550</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="propagate_constants-551"><a href="#propagate_constants-551"><span class="linenos">551</span></a> <span class="n">column_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
|
|
</span><span id="propagate_constants-552"><a href="#propagate_constants-552"><span class="linenos">552</span></a> <span class="ow">and</span> <span class="nb">id</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="o">!=</span> <span class="n">column_id</span>
|
|
</span><span id="propagate_constants-553"><a href="#propagate_constants-553"><span class="linenos">553</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">))</span>
|
|
</span><span id="propagate_constants-554"><a href="#propagate_constants-554"><span class="linenos">554</span></a> <span class="p">):</span>
|
|
</span><span id="propagate_constants-555"><a href="#propagate_constants-555"><span class="linenos">555</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">constant</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
|
|
</span><span id="propagate_constants-556"><a href="#propagate_constants-556"><span class="linenos">556</span></a>
|
|
</span><span id="propagate_constants-557"><a href="#propagate_constants-557"><span class="linenos">557</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
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<div class="docstring"><p>Propagate constants for conjunctions in DNF:</p>
|
|
|
|
<p>SELECT * FROM t WHERE a = b AND b = 5 becomes
|
|
SELECT * FROM t WHERE a = 5 AND b = 5</p>
|
|
|
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<p>Reference: <a href="https://www.sqlite.org/optoverview.html">https://www.sqlite.org/optoverview.html</a></p>
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</div>
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</section>
|
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<section id="INVERSE_DATE_OPS">
|
|
<div class="attr variable">
|
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<span class="name">INVERSE_DATE_OPS</span><span class="annotation">: Dict[Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>], Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>]]</span> =
|
|
<input id="INVERSE_DATE_OPS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<label class="view-value-button pdoc-button" for="INVERSE_DATE_OPS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#DateAdd">sqlglot.expressions.DateAdd</a>'>: <class '<a href="../expressions.html#Sub">sqlglot.expressions.Sub</a>'>, <class '<a href="../expressions.html#DateSub">sqlglot.expressions.DateSub</a>'>: <class '<a href="../expressions.html#Add">sqlglot.expressions.Add</a>'>, <class '<a href="../expressions.html#DatetimeAdd">sqlglot.expressions.DatetimeAdd</a>'>: <class '<a href="../expressions.html#Sub">sqlglot.expressions.Sub</a>'>, <class '<a href="../expressions.html#DatetimeSub">sqlglot.expressions.DatetimeSub</a>'>: <class '<a href="../expressions.html#Add">sqlglot.expressions.Add</a>'>}</span>
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</div>
|
|
<a class="headerlink" href="#INVERSE_DATE_OPS"></a>
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</section>
|
|
<section id="INVERSE_OPS">
|
|
<div class="attr variable">
|
|
<span class="name">INVERSE_OPS</span><span class="annotation">: Dict[Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>], Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>]]</span> =
|
|
<input id="INVERSE_OPS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<label class="view-value-button pdoc-button" for="INVERSE_OPS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#DateAdd">sqlglot.expressions.DateAdd</a>'>: <class '<a href="../expressions.html#Sub">sqlglot.expressions.Sub</a>'>, <class '<a href="../expressions.html#DateSub">sqlglot.expressions.DateSub</a>'>: <class '<a href="../expressions.html#Add">sqlglot.expressions.Add</a>'>, <class '<a href="../expressions.html#DatetimeAdd">sqlglot.expressions.DatetimeAdd</a>'>: <class '<a href="../expressions.html#Sub">sqlglot.expressions.Sub</a>'>, <class '<a href="../expressions.html#DatetimeSub">sqlglot.expressions.DatetimeSub</a>'>: <class '<a href="../expressions.html#Add">sqlglot.expressions.Add</a>'>, <class '<a href="../expressions.html#Add">sqlglot.expressions.Add</a>'>: <class '<a href="../expressions.html#Sub">sqlglot.expressions.Sub</a>'>, <class '<a href="../expressions.html#Sub">sqlglot.expressions.Sub</a>'>: <class '<a href="../expressions.html#Add">sqlglot.expressions.Add</a>'>}</span>
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</div>
|
|
<a class="headerlink" href="#INVERSE_OPS"></a>
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</section>
|
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<section id="simplify_equality">
|
|
<input id="simplify_equality-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
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|
|
<span class="def">def</span>
|
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<span class="name">simplify_equality</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="o">*</span><span class="n">args</span>, </span><span class="param"><span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="simplify_equality-view-source"><span>View Source</span></label>
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</div>
|
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<a class="headerlink" href="#simplify_equality"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_equality-170"><a href="#simplify_equality-170"><span class="linenos">170</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
|
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</span><span id="simplify_equality-171"><a href="#simplify_equality-171"><span class="linenos">171</span></a> <span class="k">try</span><span class="p">:</span>
|
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</span><span id="simplify_equality-172"><a href="#simplify_equality-172"><span class="linenos">172</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
|
|
</span><span id="simplify_equality-173"><a href="#simplify_equality-173"><span class="linenos">173</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span>
|
|
</span><span id="simplify_equality-174"><a href="#simplify_equality-174"><span class="linenos">174</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
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<div class="docstring"><h6 id="use-the-subtraction-and-addition-properties-of-equality-to-simplify-expressions">Use the subtraction and addition properties of equality to simplify expressions:</h6>
|
|
|
|
<blockquote>
|
|
<p>x + 1 = 3 becomes x = 2</p>
|
|
</blockquote>
|
|
|
|
<p>There are two binary operations in the above expression: + and =
|
|
Here's how we reference all the operands in the code below:</p>
|
|
|
|
<pre><code> l r
|
|
x + 1 = 3
|
|
a b
|
|
</code></pre>
|
|
</div>
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</section>
|
|
<section id="simplify_literals">
|
|
<input id="simplify_literals-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">simplify_literals</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">root</span><span class="o">=</span><span class="kc">True</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="simplify_literals-view-source"><span>View Source</span></label>
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</div>
|
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<a class="headerlink" href="#simplify_literals"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_literals-632"><a href="#simplify_literals-632"><span class="linenos">632</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_literals</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
|
|
</span><span id="simplify_literals-633"><a href="#simplify_literals-633"><span class="linenos">633</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span>
|
|
</span><span id="simplify_literals-634"><a href="#simplify_literals-634"><span class="linenos">634</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_binary</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span>
|
|
</span><span id="simplify_literals-635"><a href="#simplify_literals-635"><span class="linenos">635</span></a>
|
|
</span><span id="simplify_literals-636"><a href="#simplify_literals-636"><span class="linenos">636</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">):</span>
|
|
</span><span id="simplify_literals-637"><a href="#simplify_literals-637"><span class="linenos">637</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="simplify_literals-638"><a href="#simplify_literals-638"><span class="linenos">638</span></a>
|
|
</span><span id="simplify_literals-639"><a href="#simplify_literals-639"><span class="linenos">639</span></a> <span class="k">if</span> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">in</span> <span class="n">INVERSE_DATE_OPS</span><span class="p">:</span>
|
|
</span><span id="simplify_literals-640"><a href="#simplify_literals-640"><span class="linenos">640</span></a> <span class="k">return</span> <span class="n">_simplify_binary</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">interval</span><span class="p">())</span> <span class="ow">or</span> <span class="n">expression</span>
|
|
</span><span id="simplify_literals-641"><a href="#simplify_literals-641"><span class="linenos">641</span></a>
|
|
</span><span id="simplify_literals-642"><a href="#simplify_literals-642"><span class="linenos">642</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
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|
|
</section>
|
|
<section id="NULL_OK">
|
|
<div class="attr variable">
|
|
<span class="name">NULL_OK</span> =
|
|
<input id="NULL_OK-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<label class="view-value-button pdoc-button" for="NULL_OK-view-value"></label><span class="default_value">(<class '<a href="../expressions.html#NullSafeEQ">sqlglot.expressions.NullSafeEQ</a>'>, <class '<a href="../expressions.html#NullSafeNEQ">sqlglot.expressions.NullSafeNEQ</a>'>, <class '<a href="../expressions.html#PropertyEQ">sqlglot.expressions.PropertyEQ</a>'>)</span>
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|
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</div>
|
|
<a class="headerlink" href="#NULL_OK"></a>
|
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|
|
|
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|
</section>
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<section id="simplify_parens">
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<input id="simplify_parens-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">simplify_parens</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="simplify_parens-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#simplify_parens"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_parens-743"><a href="#simplify_parens-743"><span class="linenos">743</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_parens</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
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</span><span id="simplify_parens-744"><a href="#simplify_parens-744"><span class="linenos">744</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span>
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</span><span id="simplify_parens-745"><a href="#simplify_parens-745"><span class="linenos">745</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="simplify_parens-746"><a href="#simplify_parens-746"><span class="linenos">746</span></a>
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</span><span id="simplify_parens-747"><a href="#simplify_parens-747"><span class="linenos">747</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
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</span><span id="simplify_parens-748"><a href="#simplify_parens-748"><span class="linenos">748</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span>
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</span><span id="simplify_parens-749"><a href="#simplify_parens-749"><span class="linenos">749</span></a> <span class="n">parent_is_predicate</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span>
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</span><span id="simplify_parens-750"><a href="#simplify_parens-750"><span class="linenos">750</span></a>
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</span><span id="simplify_parens-751"><a href="#simplify_parens-751"><span class="linenos">751</span></a> <span class="k">if</span> <span class="p">(</span>
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</span><span id="simplify_parens-752"><a href="#simplify_parens-752"><span class="linenos">752</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
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</span><span id="simplify_parens-753"><a href="#simplify_parens-753"><span class="linenos">753</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">SubqueryPredicate</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Bracket</span><span class="p">))</span>
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</span><span id="simplify_parens-754"><a href="#simplify_parens-754"><span class="linenos">754</span></a> <span class="ow">and</span> <span class="p">(</span>
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</span><span id="simplify_parens-755"><a href="#simplify_parens-755"><span class="linenos">755</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span>
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</span><span id="simplify_parens-756"><a href="#simplify_parens-756"><span class="linenos">756</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span>
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</span><span id="simplify_parens-757"><a href="#simplify_parens-757"><span class="linenos">757</span></a> <span class="ow">or</span> <span class="p">(</span>
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</span><span id="simplify_parens-758"><a href="#simplify_parens-758"><span class="linenos">758</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span>
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</span><span id="simplify_parens-759"><a href="#simplify_parens-759"><span class="linenos">759</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">))</span> <span class="ow">and</span> <span class="n">parent_is_predicate</span><span class="p">)</span>
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</span><span id="simplify_parens-760"><a href="#simplify_parens-760"><span class="linenos">760</span></a> <span class="p">)</span>
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</span><span id="simplify_parens-761"><a href="#simplify_parens-761"><span class="linenos">761</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">parent_is_predicate</span><span class="p">)</span>
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</span><span id="simplify_parens-762"><a href="#simplify_parens-762"><span class="linenos">762</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">))</span>
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</span><span id="simplify_parens-763"><a href="#simplify_parens-763"><span class="linenos">763</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">))</span>
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</span><span id="simplify_parens-764"><a href="#simplify_parens-764"><span class="linenos">764</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)))</span>
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</span><span id="simplify_parens-765"><a href="#simplify_parens-765"><span class="linenos">765</span></a> <span class="p">)</span>
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</span><span id="simplify_parens-766"><a href="#simplify_parens-766"><span class="linenos">766</span></a> <span class="p">):</span>
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</span><span id="simplify_parens-767"><a href="#simplify_parens-767"><span class="linenos">767</span></a> <span class="k">return</span> <span class="n">this</span>
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</span><span id="simplify_parens-768"><a href="#simplify_parens-768"><span class="linenos">768</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span></pre></div>
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</section>
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<section id="simplify_coalesce">
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<input id="simplify_coalesce-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">simplify_coalesce</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="simplify_coalesce-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#simplify_coalesce"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_coalesce-779"><a href="#simplify_coalesce-779"><span class="linenos">779</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_coalesce</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
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</span><span id="simplify_coalesce-780"><a href="#simplify_coalesce-780"><span class="linenos">780</span></a> <span class="c1"># COALESCE(x) -> x</span>
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</span><span id="simplify_coalesce-781"><a href="#simplify_coalesce-781"><span class="linenos">781</span></a> <span class="k">if</span> <span class="p">(</span>
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</span><span id="simplify_coalesce-782"><a href="#simplify_coalesce-782"><span class="linenos">782</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">)</span>
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</span><span id="simplify_coalesce-783"><a href="#simplify_coalesce-783"><span class="linenos">783</span></a> <span class="ow">and</span> <span class="p">(</span><span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> <span class="ow">or</span> <span class="n">_is_nonnull_constant</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
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</span><span id="simplify_coalesce-784"><a href="#simplify_coalesce-784"><span class="linenos">784</span></a> <span class="c1"># COALESCE is also used as a Spark partitioning hint</span>
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</span><span id="simplify_coalesce-785"><a href="#simplify_coalesce-785"><span class="linenos">785</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Hint</span><span class="p">)</span>
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</span><span id="simplify_coalesce-786"><a href="#simplify_coalesce-786"><span class="linenos">786</span></a> <span class="p">):</span>
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</span><span id="simplify_coalesce-787"><a href="#simplify_coalesce-787"><span class="linenos">787</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
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</span><span id="simplify_coalesce-788"><a href="#simplify_coalesce-788"><span class="linenos">788</span></a>
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</span><span id="simplify_coalesce-789"><a href="#simplify_coalesce-789"><span class="linenos">789</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span>
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</span><span id="simplify_coalesce-790"><a href="#simplify_coalesce-790"><span class="linenos">790</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="simplify_coalesce-791"><a href="#simplify_coalesce-791"><span class="linenos">791</span></a>
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</span><span id="simplify_coalesce-792"><a href="#simplify_coalesce-792"><span class="linenos">792</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span>
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</span><span id="simplify_coalesce-793"><a href="#simplify_coalesce-793"><span class="linenos">793</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span>
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</span><span id="simplify_coalesce-794"><a href="#simplify_coalesce-794"><span class="linenos">794</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span>
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</span><span id="simplify_coalesce-795"><a href="#simplify_coalesce-795"><span class="linenos">795</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span>
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</span><span id="simplify_coalesce-796"><a href="#simplify_coalesce-796"><span class="linenos">796</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span>
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</span><span id="simplify_coalesce-797"><a href="#simplify_coalesce-797"><span class="linenos">797</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span>
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</span><span id="simplify_coalesce-798"><a href="#simplify_coalesce-798"><span class="linenos">798</span></a> <span class="k">else</span><span class="p">:</span>
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</span><span id="simplify_coalesce-799"><a href="#simplify_coalesce-799"><span class="linenos">799</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="simplify_coalesce-800"><a href="#simplify_coalesce-800"><span class="linenos">800</span></a>
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</span><span id="simplify_coalesce-801"><a href="#simplify_coalesce-801"><span class="linenos">801</span></a> <span class="c1"># This transformation is valid for non-constants,</span>
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</span><span id="simplify_coalesce-802"><a href="#simplify_coalesce-802"><span class="linenos">802</span></a> <span class="c1"># but it really only does anything if they are both constants.</span>
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</span><span id="simplify_coalesce-803"><a href="#simplify_coalesce-803"><span class="linenos">803</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">other</span><span class="p">):</span>
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</span><span id="simplify_coalesce-804"><a href="#simplify_coalesce-804"><span class="linenos">804</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="simplify_coalesce-805"><a href="#simplify_coalesce-805"><span class="linenos">805</span></a>
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</span><span id="simplify_coalesce-806"><a href="#simplify_coalesce-806"><span class="linenos">806</span></a> <span class="c1"># Find the first constant arg</span>
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</span><span id="simplify_coalesce-807"><a href="#simplify_coalesce-807"><span class="linenos">807</span></a> <span class="k">for</span> <span class="n">arg_index</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">):</span>
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</span><span id="simplify_coalesce-808"><a href="#simplify_coalesce-808"><span class="linenos">808</span></a> <span class="k">if</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">arg</span><span class="p">):</span>
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</span><span id="simplify_coalesce-809"><a href="#simplify_coalesce-809"><span class="linenos">809</span></a> <span class="k">break</span>
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</span><span id="simplify_coalesce-810"><a href="#simplify_coalesce-810"><span class="linenos">810</span></a> <span class="k">else</span><span class="p">:</span>
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</span><span id="simplify_coalesce-811"><a href="#simplify_coalesce-811"><span class="linenos">811</span></a> <span class="k">return</span> <span class="n">expression</span>
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</span><span id="simplify_coalesce-812"><a href="#simplify_coalesce-812"><span class="linenos">812</span></a>
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</span><span id="simplify_coalesce-813"><a href="#simplify_coalesce-813"><span class="linenos">813</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">[:</span><span class="n">arg_index</span><span class="p">])</span>
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</span><span id="simplify_coalesce-814"><a href="#simplify_coalesce-814"><span class="linenos">814</span></a>
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</span><span id="simplify_coalesce-815"><a href="#simplify_coalesce-815"><span class="linenos">815</span></a> <span class="c1"># Remove the COALESCE function. This is an optimization, skipping a simplify iteration,</span>
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</span><span id="simplify_coalesce-816"><a href="#simplify_coalesce-816"><span class="linenos">816</span></a> <span class="c1"># since we already remove COALESCE at the top of this function.</span>
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</span><span id="simplify_coalesce-817"><a href="#simplify_coalesce-817"><span class="linenos">817</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">coalesce</span> <span class="k">if</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span> <span class="k">else</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">this</span>
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</span><span id="simplify_coalesce-818"><a href="#simplify_coalesce-818"><span class="linenos">818</span></a>
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</span><span id="simplify_coalesce-819"><a href="#simplify_coalesce-819"><span class="linenos">819</span></a> <span class="c1"># This expression is more complex than when we started, but it will get simplified further</span>
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</span><span id="simplify_coalesce-820"><a href="#simplify_coalesce-820"><span class="linenos">820</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span>
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</span><span id="simplify_coalesce-821"><a href="#simplify_coalesce-821"><span class="linenos">821</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span>
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</span><span id="simplify_coalesce-822"><a href="#simplify_coalesce-822"><span class="linenos">822</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
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</span><span id="simplify_coalesce-823"><a href="#simplify_coalesce-823"><span class="linenos">823</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">())</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span>
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</span><span id="simplify_coalesce-824"><a href="#simplify_coalesce-824"><span class="linenos">824</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span>
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</span><span id="simplify_coalesce-825"><a href="#simplify_coalesce-825"><span class="linenos">825</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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</span><span id="simplify_coalesce-826"><a href="#simplify_coalesce-826"><span class="linenos">826</span></a> <span class="p">),</span>
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</span><span id="simplify_coalesce-827"><a href="#simplify_coalesce-827"><span class="linenos">827</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span>
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</span><span id="simplify_coalesce-828"><a href="#simplify_coalesce-828"><span class="linenos">828</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()),</span>
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|
</span><span id="simplify_coalesce-829"><a href="#simplify_coalesce-829"><span class="linenos">829</span></a> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)(</span><span class="n">this</span><span class="o">=</span><span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">other</span><span class="o">.</span><span class="n">copy</span><span class="p">()),</span>
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</span><span id="simplify_coalesce-830"><a href="#simplify_coalesce-830"><span class="linenos">830</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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</span><span id="simplify_coalesce-831"><a href="#simplify_coalesce-831"><span class="linenos">831</span></a> <span class="p">),</span>
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</span><span id="simplify_coalesce-832"><a href="#simplify_coalesce-832"><span class="linenos">832</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
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|
</span><span id="simplify_coalesce-833"><a href="#simplify_coalesce-833"><span class="linenos">833</span></a> <span class="p">)</span>
|
|
</span><span id="simplify_coalesce-834"><a href="#simplify_coalesce-834"><span class="linenos">834</span></a> <span class="p">)</span>
|
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</span></pre></div>
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</section>
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<section id="CONCATS">
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<div class="attr variable">
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<span class="name">CONCATS</span> =
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<span class="default_value">(<class '<a href="../expressions.html#Concat">sqlglot.expressions.Concat</a>'>, <class '<a href="../expressions.html#DPipe">sqlglot.expressions.DPipe</a>'>)</span>
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</div>
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<a class="headerlink" href="#CONCATS"></a>
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</section>
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<section id="simplify_concat">
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<input id="simplify_concat-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">simplify_concat</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
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<label class="view-source-button" for="simplify_concat-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#simplify_concat"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_concat-840"><a href="#simplify_concat-840"><span class="linenos">840</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_concat</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
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</span><span id="simplify_concat-841"><a href="#simplify_concat-841"><span class="linenos">841</span></a><span class="w"> </span><span class="sd">"""Reduces all groups that contain string literals by concatenating them."""</span>
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</span><span id="simplify_concat-842"><a href="#simplify_concat-842"><span class="linenos">842</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">CONCATS</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span>
|
|
</span><span id="simplify_concat-843"><a href="#simplify_concat-843"><span class="linenos">843</span></a> <span class="c1"># We can't reduce a CONCAT_WS call if we don't statically know the separator</span>
|
|
</span><span id="simplify_concat-844"><a href="#simplify_concat-844"><span class="linenos">844</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="simplify_concat-845"><a href="#simplify_concat-845"><span class="linenos">845</span></a> <span class="p">):</span>
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|
</span><span id="simplify_concat-846"><a href="#simplify_concat-846"><span class="linenos">846</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="simplify_concat-847"><a href="#simplify_concat-847"><span class="linenos">847</span></a>
|
|
</span><span id="simplify_concat-848"><a href="#simplify_concat-848"><span class="linenos">848</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">):</span>
|
|
</span><span id="simplify_concat-849"><a href="#simplify_concat-849"><span class="linenos">849</span></a> <span class="n">sep_expr</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span>
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</span><span id="simplify_concat-850"><a href="#simplify_concat-850"><span class="linenos">850</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="n">sep_expr</span><span class="o">.</span><span class="n">name</span>
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</span><span id="simplify_concat-851"><a href="#simplify_concat-851"><span class="linenos">851</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span>
|
|
</span><span id="simplify_concat-852"><a href="#simplify_concat-852"><span class="linenos">852</span></a> <span class="n">args</span> <span class="o">=</span> <span class="p">{}</span>
|
|
</span><span id="simplify_concat-853"><a href="#simplify_concat-853"><span class="linenos">853</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="simplify_concat-854"><a href="#simplify_concat-854"><span class="linenos">854</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span>
|
|
</span><span id="simplify_concat-855"><a href="#simplify_concat-855"><span class="linenos">855</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="s2">""</span>
|
|
</span><span id="simplify_concat-856"><a href="#simplify_concat-856"><span class="linenos">856</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Concat</span>
|
|
</span><span id="simplify_concat-857"><a href="#simplify_concat-857"><span class="linenos">857</span></a> <span class="n">args</span> <span class="o">=</span> <span class="p">{</span>
|
|
</span><span id="simplify_concat-858"><a href="#simplify_concat-858"><span class="linenos">858</span></a> <span class="s2">"safe"</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"safe"</span><span class="p">),</span>
|
|
</span><span id="simplify_concat-859"><a href="#simplify_concat-859"><span class="linenos">859</span></a> <span class="s2">"coalesce"</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"coalesce"</span><span class="p">),</span>
|
|
</span><span id="simplify_concat-860"><a href="#simplify_concat-860"><span class="linenos">860</span></a> <span class="p">}</span>
|
|
</span><span id="simplify_concat-861"><a href="#simplify_concat-861"><span class="linenos">861</span></a>
|
|
</span><span id="simplify_concat-862"><a href="#simplify_concat-862"><span class="linenos">862</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="simplify_concat-863"><a href="#simplify_concat-863"><span class="linenos">863</span></a> <span class="k">for</span> <span class="n">is_string_group</span><span class="p">,</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span>
|
|
</span><span id="simplify_concat-864"><a href="#simplify_concat-864"><span class="linenos">864</span></a> <span class="n">expressions</span> <span class="ow">or</span> <span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="simplify_concat-865"><a href="#simplify_concat-865"><span class="linenos">865</span></a> <span class="p">):</span>
|
|
</span><span id="simplify_concat-866"><a href="#simplify_concat-866"><span class="linenos">866</span></a> <span class="k">if</span> <span class="n">is_string_group</span><span class="p">:</span>
|
|
</span><span id="simplify_concat-867"><a href="#simplify_concat-867"><span class="linenos">867</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">group</span><span class="p">)))</span>
|
|
</span><span id="simplify_concat-868"><a href="#simplify_concat-868"><span class="linenos">868</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="simplify_concat-869"><a href="#simplify_concat-869"><span class="linenos">869</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">group</span><span class="p">)</span>
|
|
</span><span id="simplify_concat-870"><a href="#simplify_concat-870"><span class="linenos">870</span></a>
|
|
</span><span id="simplify_concat-871"><a href="#simplify_concat-871"><span class="linenos">871</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">new_args</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span>
|
|
</span><span id="simplify_concat-872"><a href="#simplify_concat-872"><span class="linenos">872</span></a> <span class="k">return</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
|
</span><span id="simplify_concat-873"><a href="#simplify_concat-873"><span class="linenos">873</span></a>
|
|
</span><span id="simplify_concat-874"><a href="#simplify_concat-874"><span class="linenos">874</span></a> <span class="k">if</span> <span class="n">concat_type</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">:</span>
|
|
</span><span id="simplify_concat-875"><a href="#simplify_concat-875"><span class="linenos">875</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">sep_expr</span><span class="p">]</span> <span class="o">+</span> <span class="n">new_args</span>
|
|
</span><span id="simplify_concat-876"><a href="#simplify_concat-876"><span class="linenos">876</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">):</span>
|
|
</span><span id="simplify_concat-877"><a href="#simplify_concat-877"><span class="linenos">877</span></a> <span class="k">return</span> <span class="n">reduce</span><span class="p">(</span><span class="k">lambda</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">x</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">y</span><span class="p">),</span> <span class="n">new_args</span><span class="p">)</span>
|
|
</span><span id="simplify_concat-878"><a href="#simplify_concat-878"><span class="linenos">878</span></a>
|
|
</span><span id="simplify_concat-879"><a href="#simplify_concat-879"><span class="linenos">879</span></a> <span class="k">return</span> <span class="n">concat_type</span><span class="p">(</span><span class="n">expressions</span><span class="o">=</span><span class="n">new_args</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Reduces all groups that contain string literals by concatenating them.</p>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="simplify_conditionals">
|
|
<input id="simplify_conditionals-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">simplify_conditionals</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="simplify_conditionals-view-source"><span>View Source</span></label>
|
|
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</div>
|
|
<a class="headerlink" href="#simplify_conditionals"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_conditionals-882"><a href="#simplify_conditionals-882"><span class="linenos">882</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_conditionals</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-883"><a href="#simplify_conditionals-883"><span class="linenos">883</span></a><span class="w"> </span><span class="sd">"""Simplifies expressions like IF, CASE if their condition is statically known."""</span>
|
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</span><span id="simplify_conditionals-884"><a href="#simplify_conditionals-884"><span class="linenos">884</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-885"><a href="#simplify_conditionals-885"><span class="linenos">885</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="simplify_conditionals-886"><a href="#simplify_conditionals-886"><span class="linenos">886</span></a> <span class="k">for</span> <span class="n">case</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span>
|
|
</span><span id="simplify_conditionals-887"><a href="#simplify_conditionals-887"><span class="linenos">887</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">case</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="simplify_conditionals-888"><a href="#simplify_conditionals-888"><span class="linenos">888</span></a> <span class="k">if</span> <span class="n">this</span><span class="p">:</span>
|
|
</span><span id="simplify_conditionals-889"><a href="#simplify_conditionals-889"><span class="linenos">889</span></a> <span class="c1"># Convert CASE x WHEN matching_value ... to CASE WHEN x = matching_value ...</span>
|
|
</span><span id="simplify_conditionals-890"><a href="#simplify_conditionals-890"><span class="linenos">890</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">cond</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">this</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span><span class="o">.</span><span class="n">eq</span><span class="p">(</span><span class="n">cond</span><span class="p">))</span>
|
|
</span><span id="simplify_conditionals-891"><a href="#simplify_conditionals-891"><span class="linenos">891</span></a>
|
|
</span><span id="simplify_conditionals-892"><a href="#simplify_conditionals-892"><span class="linenos">892</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-893"><a href="#simplify_conditionals-893"><span class="linenos">893</span></a> <span class="k">return</span> <span class="n">case</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span>
|
|
</span><span id="simplify_conditionals-894"><a href="#simplify_conditionals-894"><span class="linenos">894</span></a>
|
|
</span><span id="simplify_conditionals-895"><a href="#simplify_conditionals-895"><span class="linenos">895</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-896"><a href="#simplify_conditionals-896"><span class="linenos">896</span></a> <span class="k">case</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="simplify_conditionals-897"><a href="#simplify_conditionals-897"><span class="linenos">897</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span>
|
|
</span><span id="simplify_conditionals-898"><a href="#simplify_conditionals-898"><span class="linenos">898</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"default"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="simplify_conditionals-899"><a href="#simplify_conditionals-899"><span class="linenos">899</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-900"><a href="#simplify_conditionals-900"><span class="linenos">900</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-901"><a href="#simplify_conditionals-901"><span class="linenos">901</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span>
|
|
</span><span id="simplify_conditionals-902"><a href="#simplify_conditionals-902"><span class="linenos">902</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="simplify_conditionals-903"><a href="#simplify_conditionals-903"><span class="linenos">903</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"false"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span>
|
|
</span><span id="simplify_conditionals-904"><a href="#simplify_conditionals-904"><span class="linenos">904</span></a>
|
|
</span><span id="simplify_conditionals-905"><a href="#simplify_conditionals-905"><span class="linenos">905</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Simplifies expressions like IF, CASE if their condition is statically known.</p>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="simplify_startswith">
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|
<input id="simplify_startswith-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">simplify_startswith</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span>:</span></span>
|
|
|
|
<label class="view-source-button" for="simplify_startswith-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#simplify_startswith"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_startswith-908"><a href="#simplify_startswith-908"><span class="linenos">908</span></a><span class="k">def</span><span class="w"> </span><span class="nf">simplify_startswith</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
|
|
</span><span id="simplify_startswith-909"><a href="#simplify_startswith-909"><span class="linenos">909</span></a><span class="w"> </span><span class="sd">"""</span>
|
|
</span><span id="simplify_startswith-910"><a href="#simplify_startswith-910"><span class="linenos">910</span></a><span class="sd"> Reduces a prefix check to either TRUE or FALSE if both the string and the</span>
|
|
</span><span id="simplify_startswith-911"><a href="#simplify_startswith-911"><span class="linenos">911</span></a><span class="sd"> prefix are statically known.</span>
|
|
</span><span id="simplify_startswith-912"><a href="#simplify_startswith-912"><span class="linenos">912</span></a>
|
|
</span><span id="simplify_startswith-913"><a href="#simplify_startswith-913"><span class="linenos">913</span></a><span class="sd"> Example:</span>
|
|
</span><span id="simplify_startswith-914"><a href="#simplify_startswith-914"><span class="linenos">914</span></a><span class="sd"> >>> from sqlglot import parse_one</span>
|
|
</span><span id="simplify_startswith-915"><a href="#simplify_startswith-915"><span class="linenos">915</span></a><span class="sd"> >>> simplify_startswith(parse_one("STARTSWITH('foo', 'f')")).sql()</span>
|
|
</span><span id="simplify_startswith-916"><a href="#simplify_startswith-916"><span class="linenos">916</span></a><span class="sd"> 'TRUE'</span>
|
|
</span><span id="simplify_startswith-917"><a href="#simplify_startswith-917"><span class="linenos">917</span></a><span class="sd"> """</span>
|
|
</span><span id="simplify_startswith-918"><a href="#simplify_startswith-918"><span class="linenos">918</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="simplify_startswith-919"><a href="#simplify_startswith-919"><span class="linenos">919</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">StartsWith</span><span class="p">)</span>
|
|
</span><span id="simplify_startswith-920"><a href="#simplify_startswith-920"><span class="linenos">920</span></a> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="simplify_startswith-921"><a href="#simplify_startswith-921"><span class="linenos">921</span></a> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">is_string</span>
|
|
</span><span id="simplify_startswith-922"><a href="#simplify_startswith-922"><span class="linenos">922</span></a> <span class="p">):</span>
|
|
</span><span id="simplify_startswith-923"><a href="#simplify_startswith-923"><span class="linenos">923</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">convert</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="p">))</span>
|
|
</span><span id="simplify_startswith-924"><a href="#simplify_startswith-924"><span class="linenos">924</span></a>
|
|
</span><span id="simplify_startswith-925"><a href="#simplify_startswith-925"><span class="linenos">925</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Reduces a prefix check to either TRUE or FALSE if both the string and the
|
|
prefix are statically known.</p>
|
|
|
|
<h6 id="example">Example:</h6>
|
|
|
|
<blockquote>
|
|
<div class="pdoc-code codehilite">
|
|
<pre><span></span><code><span class="gp">>>> </span><span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot</span><span class="w"> </span><span class="kn">import</span> <span class="n">parse_one</span>
|
|
<span class="gp">>>> </span><span class="n">simplify_startswith</span><span class="p">(</span><span class="n">parse_one</span><span class="p">(</span><span class="s2">"STARTSWITH('foo', 'f')"</span><span class="p">))</span><span class="o">.</span><span class="n">sql</span><span class="p">()</span>
|
|
<span class="go">'TRUE'</span>
|
|
</code></pre>
|
|
</div>
|
|
</blockquote>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="DateRange">
|
|
<div class="attr variable">
|
|
<span class="name">DateRange</span> =
|
|
<span class="default_value">typing.Tuple[datetime.date, datetime.date]</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#DateRange"></a>
|
|
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|
|
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|
</section>
|
|
<section id="DATETRUNC_BINARY_COMPARISONS">
|
|
<div class="attr variable">
|
|
<span class="name">DATETRUNC_BINARY_COMPARISONS</span><span class="annotation">: Dict[Type[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>], Callable[[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>, datetime.date, str, <a href="../dialects.html#Dialect">sqlglot.dialects.Dialect</a>, <a href="../expressions.html#DataType">sqlglot.expressions.DataType</a>], Optional[<a href="../expressions.html#Expression">sqlglot.expressions.Expression</a>]]]</span> =
|
|
<input id="DATETRUNC_BINARY_COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<label class="view-value-button pdoc-button" for="DATETRUNC_BINARY_COMPARISONS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>: <function <lambda>>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>: <function <lambda>>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>: <function <lambda>>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>: <function <lambda>>, <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>: <function _datetrunc_eq>, <class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>: <function _datetrunc_neq>}</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#DATETRUNC_BINARY_COMPARISONS"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="DATETRUNC_COMPARISONS">
|
|
<div class="attr variable">
|
|
<span class="name">DATETRUNC_COMPARISONS</span> =
|
|
<input id="DATETRUNC_COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<label class="view-value-button pdoc-button" for="DATETRUNC_COMPARISONS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>, <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>, <class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#In">sqlglot.expressions.In</a>'>, <class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>}</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#DATETRUNC_COMPARISONS"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="DATETRUNCS">
|
|
<div class="attr variable">
|
|
<span class="name">DATETRUNCS</span> =
|
|
<span class="default_value">(<class '<a href="../expressions.html#DateTrunc">sqlglot.expressions.DateTrunc</a>'>, <class '<a href="../expressions.html#TimestampTrunc">sqlglot.expressions.TimestampTrunc</a>'>)</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#DATETRUNCS"></a>
|
|
|
|
|
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|
|
</section>
|
|
<section id="simplify_datetrunc">
|
|
<input id="simplify_datetrunc-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">simplify_datetrunc</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="o">*</span><span class="n">args</span>, </span><span class="param"><span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="simplify_datetrunc-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#simplify_datetrunc"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="simplify_datetrunc-170"><a href="#simplify_datetrunc-170"><span class="linenos">170</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
|
|
</span><span id="simplify_datetrunc-171"><a href="#simplify_datetrunc-171"><span class="linenos">171</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="simplify_datetrunc-172"><a href="#simplify_datetrunc-172"><span class="linenos">172</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
|
|
</span><span id="simplify_datetrunc-173"><a href="#simplify_datetrunc-173"><span class="linenos">173</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span>
|
|
</span><span id="simplify_datetrunc-174"><a href="#simplify_datetrunc-174"><span class="linenos">174</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Simplify expressions like <code>DATE_TRUNC('year', x) >= CAST('2021-01-01' AS DATE)</code></p>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="sort_comparison">
|
|
<input id="sort_comparison-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">sort_comparison</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span>:</span></span>
|
|
|
|
<label class="view-source-button" for="sort_comparison-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#sort_comparison"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="sort_comparison-1074"><a href="#sort_comparison-1074"><span class="linenos">1074</span></a><span class="k">def</span><span class="w"> </span><span class="nf">sort_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
|
|
</span><span id="sort_comparison-1075"><a href="#sort_comparison-1075"><span class="linenos">1075</span></a> <span class="k">if</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">COMPLEMENT_COMPARISONS</span><span class="p">:</span>
|
|
</span><span id="sort_comparison-1076"><a href="#sort_comparison-1076"><span class="linenos">1076</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">expression</span>
|
|
</span><span id="sort_comparison-1077"><a href="#sort_comparison-1077"><span class="linenos">1077</span></a> <span class="n">l_column</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1078"><a href="#sort_comparison-1078"><span class="linenos">1078</span></a> <span class="n">r_column</span> <span class="o">=</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1079"><a href="#sort_comparison-1079"><span class="linenos">1079</span></a> <span class="n">l_const</span> <span class="o">=</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">l</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1080"><a href="#sort_comparison-1080"><span class="linenos">1080</span></a> <span class="n">r_const</span> <span class="o">=</span> <span class="n">_is_constant</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1081"><a href="#sort_comparison-1081"><span class="linenos">1081</span></a>
|
|
</span><span id="sort_comparison-1082"><a href="#sort_comparison-1082"><span class="linenos">1082</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="sort_comparison-1083"><a href="#sort_comparison-1083"><span class="linenos">1083</span></a> <span class="p">(</span><span class="n">l_column</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">r_column</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1084"><a href="#sort_comparison-1084"><span class="linenos">1084</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">r_const</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">l_const</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1085"><a href="#sort_comparison-1085"><span class="linenos">1085</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">SubqueryPredicate</span><span class="p">)</span>
|
|
</span><span id="sort_comparison-1086"><a href="#sort_comparison-1086"><span class="linenos">1086</span></a> <span class="p">):</span>
|
|
</span><span id="sort_comparison-1087"><a href="#sort_comparison-1087"><span class="linenos">1087</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span><span id="sort_comparison-1088"><a href="#sort_comparison-1088"><span class="linenos">1088</span></a> <span class="k">if</span> <span class="p">(</span><span class="n">r_column</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">l_column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">l_const</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">r_const</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">gen</span><span class="p">(</span><span class="n">l</span><span class="p">)</span> <span class="o">></span> <span class="n">gen</span><span class="p">(</span><span class="n">r</span><span class="p">)):</span>
|
|
</span><span id="sort_comparison-1089"><a href="#sort_comparison-1089"><span class="linenos">1089</span></a> <span class="k">return</span> <span class="n">INVERSE_COMPARISONS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">)(</span>
|
|
</span><span id="sort_comparison-1090"><a href="#sort_comparison-1090"><span class="linenos">1090</span></a> <span class="n">this</span><span class="o">=</span><span class="n">r</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">l</span>
|
|
</span><span id="sort_comparison-1091"><a href="#sort_comparison-1091"><span class="linenos">1091</span></a> <span class="p">)</span>
|
|
</span><span id="sort_comparison-1092"><a href="#sort_comparison-1092"><span class="linenos">1092</span></a> <span class="k">return</span> <span class="n">expression</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="JOINS">
|
|
<div class="attr variable">
|
|
<span class="name">JOINS</span> =
|
|
<span class="default_value">{('RIGHT', ''), ('', 'INNER'), ('RIGHT', 'OUTER'), ('', '')}</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#JOINS"></a>
|
|
|
|
|
|
|
|
</section>
|
|
<section id="remove_where_true">
|
|
<input id="remove_where_true-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">remove_where_true</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="remove_where_true-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#remove_where_true"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="remove_where_true-1106"><a href="#remove_where_true-1106"><span class="linenos">1106</span></a><span class="k">def</span><span class="w"> </span><span class="nf">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="remove_where_true-1107"><a href="#remove_where_true-1107"><span class="linenos">1107</span></a> <span class="k">for</span> <span class="n">where</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span>
|
|
</span><span id="remove_where_true-1108"><a href="#remove_where_true-1108"><span class="linenos">1108</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">):</span>
|
|
</span><span id="remove_where_true-1109"><a href="#remove_where_true-1109"><span class="linenos">1109</span></a> <span class="n">where</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="remove_where_true-1110"><a href="#remove_where_true-1110"><span class="linenos">1110</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span>
|
|
</span><span id="remove_where_true-1111"><a href="#remove_where_true-1111"><span class="linenos">1111</span></a> <span class="k">if</span> <span class="p">(</span>
|
|
</span><span id="remove_where_true-1112"><a href="#remove_where_true-1112"><span class="linenos">1112</span></a> <span class="n">always_true</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span>
|
|
</span><span id="remove_where_true-1113"><a href="#remove_where_true-1113"><span class="linenos">1113</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span>
|
|
</span><span id="remove_where_true-1114"><a href="#remove_where_true-1114"><span class="linenos">1114</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"method"</span><span class="p">)</span>
|
|
</span><span id="remove_where_true-1115"><a href="#remove_where_true-1115"><span class="linenos">1115</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">side</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">kind</span><span class="p">)</span> <span class="ow">in</span> <span class="n">JOINS</span>
|
|
</span><span id="remove_where_true-1116"><a href="#remove_where_true-1116"><span class="linenos">1116</span></a> <span class="p">):</span>
|
|
</span><span id="remove_where_true-1117"><a href="#remove_where_true-1117"><span class="linenos">1117</span></a> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"on"</span><span class="p">]</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="remove_where_true-1118"><a href="#remove_where_true-1118"><span class="linenos">1118</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"side"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
|
|
</span><span id="remove_where_true-1119"><a href="#remove_where_true-1119"><span class="linenos">1119</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"kind"</span><span class="p">,</span> <span class="s2">"CROSS"</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
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|
|
|
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|
|
|
</section>
|
|
<section id="always_true">
|
|
<input id="always_true-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">always_true</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="always_true-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#always_true"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="always_true-1122"><a href="#always_true-1122"><span class="linenos">1122</span></a><span class="k">def</span><span class="w"> </span><span class="nf">always_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="always_true-1123"><a href="#always_true-1123"><span class="linenos">1123</span></a> <span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span>
|
|
</span><span id="always_true-1124"><a href="#always_true-1124"><span class="linenos">1124</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span><span id="always_true-1125"><a href="#always_true-1125"><span class="linenos">1125</span></a> <span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="always_false">
|
|
<input id="always_false-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">always_false</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="always_false-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#always_false"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="always_false-1128"><a href="#always_false-1128"><span class="linenos">1128</span></a><span class="k">def</span><span class="w"> </span><span class="nf">always_false</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="always_false-1129"><a href="#always_false-1129"><span class="linenos">1129</span></a> <span class="k">return</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_zero</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="is_zero">
|
|
<input id="is_zero-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">is_zero</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="is_zero-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#is_zero"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="is_zero-1132"><a href="#is_zero-1132"><span class="linenos">1132</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_zero</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="is_zero-1133"><a href="#is_zero-1133"><span class="linenos">1133</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">to_py</span><span class="p">()</span> <span class="o">==</span> <span class="mi">0</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="is_complement">
|
|
<input id="is_complement-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">is_complement</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">a</span>, </span><span class="param"><span class="n">b</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="is_complement-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#is_complement"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="is_complement-1136"><a href="#is_complement-1136"><span class="linenos">1136</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
|
|
</span><span id="is_complement-1137"><a href="#is_complement-1137"><span class="linenos">1137</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="o">==</span> <span class="n">a</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="is_false">
|
|
<input id="is_false-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">is_false</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">a</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="nb">bool</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="is_false-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#is_false"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="is_false-1140"><a href="#is_false-1140"><span class="linenos">1140</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_false</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="is_false-1141"><a href="#is_false-1141"><span class="linenos">1141</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="is_null">
|
|
<input id="is_null-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">is_null</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">a</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="nb">bool</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="is_null-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#is_null"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="is_null-1144"><a href="#is_null-1144"><span class="linenos">1144</span></a><span class="k">def</span><span class="w"> </span><span class="nf">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="is_null-1145"><a href="#is_null-1145"><span class="linenos">1145</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="eval_boolean">
|
|
<input id="eval_boolean-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">eval_boolean</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">a</span>, </span><span class="param"><span class="n">b</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="eval_boolean-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#eval_boolean"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="eval_boolean-1148"><a href="#eval_boolean-1148"><span class="linenos">1148</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
|
|
</span><span id="eval_boolean-1149"><a href="#eval_boolean-1149"><span class="linenos">1149</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)):</span>
|
|
</span><span id="eval_boolean-1150"><a href="#eval_boolean-1150"><span class="linenos">1150</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="eval_boolean-1151"><a href="#eval_boolean-1151"><span class="linenos">1151</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span>
|
|
</span><span id="eval_boolean-1152"><a href="#eval_boolean-1152"><span class="linenos">1152</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">!=</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="eval_boolean-1153"><a href="#eval_boolean-1153"><span class="linenos">1153</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span>
|
|
</span><span id="eval_boolean-1154"><a href="#eval_boolean-1154"><span class="linenos">1154</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="eval_boolean-1155"><a href="#eval_boolean-1155"><span class="linenos">1155</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span>
|
|
</span><span id="eval_boolean-1156"><a href="#eval_boolean-1156"><span class="linenos">1156</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="eval_boolean-1157"><a href="#eval_boolean-1157"><span class="linenos">1157</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span>
|
|
</span><span id="eval_boolean-1158"><a href="#eval_boolean-1158"><span class="linenos">1158</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="eval_boolean-1159"><a href="#eval_boolean-1159"><span class="linenos">1159</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span>
|
|
</span><span id="eval_boolean-1160"><a href="#eval_boolean-1160"><span class="linenos">1160</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="n">b</span><span class="p">)</span>
|
|
</span><span id="eval_boolean-1161"><a href="#eval_boolean-1161"><span class="linenos">1161</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="cast_as_date">
|
|
<input id="cast_as_date-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">cast_as_date</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">value</span><span class="p">:</span> <span class="n">Any</span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="cast_as_date-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#cast_as_date"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="cast_as_date-1164"><a href="#cast_as_date-1164"><span class="linenos">1164</span></a><span class="k">def</span><span class="w"> </span><span class="nf">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]:</span>
|
|
</span><span id="cast_as_date-1165"><a href="#cast_as_date-1165"><span class="linenos">1165</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span>
|
|
</span><span id="cast_as_date-1166"><a href="#cast_as_date-1166"><span class="linenos">1166</span></a> <span class="k">return</span> <span class="n">value</span><span class="o">.</span><span class="n">date</span><span class="p">()</span>
|
|
</span><span id="cast_as_date-1167"><a href="#cast_as_date-1167"><span class="linenos">1167</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span>
|
|
</span><span id="cast_as_date-1168"><a href="#cast_as_date-1168"><span class="linenos">1168</span></a> <span class="k">return</span> <span class="n">value</span>
|
|
</span><span id="cast_as_date-1169"><a href="#cast_as_date-1169"><span class="linenos">1169</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="cast_as_date-1170"><a href="#cast_as_date-1170"><span class="linenos">1170</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="o">.</span><span class="n">date</span><span class="p">()</span>
|
|
</span><span id="cast_as_date-1171"><a href="#cast_as_date-1171"><span class="linenos">1171</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
|
</span><span id="cast_as_date-1172"><a href="#cast_as_date-1172"><span class="linenos">1172</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="cast_as_datetime">
|
|
<input id="cast_as_datetime-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">cast_as_datetime</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">value</span><span class="p">:</span> <span class="n">Any</span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="cast_as_datetime-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#cast_as_datetime"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="cast_as_datetime-1175"><a href="#cast_as_datetime-1175"><span class="linenos">1175</span></a><span class="k">def</span><span class="w"> </span><span class="nf">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]:</span>
|
|
</span><span id="cast_as_datetime-1176"><a href="#cast_as_datetime-1176"><span class="linenos">1176</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span>
|
|
</span><span id="cast_as_datetime-1177"><a href="#cast_as_datetime-1177"><span class="linenos">1177</span></a> <span class="k">return</span> <span class="n">value</span>
|
|
</span><span id="cast_as_datetime-1178"><a href="#cast_as_datetime-1178"><span class="linenos">1178</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span>
|
|
</span><span id="cast_as_datetime-1179"><a href="#cast_as_datetime-1179"><span class="linenos">1179</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">month</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">day</span><span class="p">)</span>
|
|
</span><span id="cast_as_datetime-1180"><a href="#cast_as_datetime-1180"><span class="linenos">1180</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="cast_as_datetime-1181"><a href="#cast_as_datetime-1181"><span class="linenos">1181</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
|
</span><span id="cast_as_datetime-1182"><a href="#cast_as_datetime-1182"><span class="linenos">1182</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
|
</span><span id="cast_as_datetime-1183"><a href="#cast_as_datetime-1183"><span class="linenos">1183</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="cast_value">
|
|
<input id="cast_value-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">cast_value</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">value</span><span class="p">:</span> <span class="n">Any</span>, </span><span class="param"><span class="n">to</span><span class="p">:</span> <span class="n"><a href="../expressions.html#DataType">sqlglot.expressions.DataType</a></span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="cast_value-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#cast_value"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="cast_value-1186"><a href="#cast_value-1186"><span class="linenos">1186</span></a><span class="k">def</span><span class="w"> </span><span class="nf">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">to</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span>
|
|
</span><span id="cast_value-1187"><a href="#cast_value-1187"><span class="linenos">1187</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="p">:</span>
|
|
</span><span id="cast_value-1188"><a href="#cast_value-1188"><span class="linenos">1188</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="cast_value-1189"><a href="#cast_value-1189"><span class="linenos">1189</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">):</span>
|
|
</span><span id="cast_value-1190"><a href="#cast_value-1190"><span class="linenos">1190</span></a> <span class="k">return</span> <span class="n">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
|
</span><span id="cast_value-1191"><a href="#cast_value-1191"><span class="linenos">1191</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span>
|
|
</span><span id="cast_value-1192"><a href="#cast_value-1192"><span class="linenos">1192</span></a> <span class="k">return</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
|
</span><span id="cast_value-1193"><a href="#cast_value-1193"><span class="linenos">1193</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="extract_date">
|
|
<input id="extract_date-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">extract_date</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">cast</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="extract_date-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#extract_date"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="extract_date-1196"><a href="#extract_date-1196"><span class="linenos">1196</span></a><span class="k">def</span><span class="w"> </span><span class="nf">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span>
|
|
</span><span id="extract_date-1197"><a href="#extract_date-1197"><span class="linenos">1197</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span>
|
|
</span><span id="extract_date-1198"><a href="#extract_date-1198"><span class="linenos">1198</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">to</span>
|
|
</span><span id="extract_date-1199"><a href="#extract_date-1199"><span class="linenos">1199</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">cast</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"format"</span><span class="p">):</span>
|
|
</span><span id="extract_date-1200"><a href="#extract_date-1200"><span class="linenos">1200</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">)</span>
|
|
</span><span id="extract_date-1201"><a href="#extract_date-1201"><span class="linenos">1201</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="extract_date-1202"><a href="#extract_date-1202"><span class="linenos">1202</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="extract_date-1203"><a href="#extract_date-1203"><span class="linenos">1203</span></a>
|
|
</span><span id="extract_date-1204"><a href="#extract_date-1204"><span class="linenos">1204</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span>
|
|
</span><span id="extract_date-1205"><a href="#extract_date-1205"><span class="linenos">1205</span></a> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span>
|
|
</span><span id="extract_date-1206"><a href="#extract_date-1206"><span class="linenos">1206</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)):</span>
|
|
</span><span id="extract_date-1207"><a href="#extract_date-1207"><span class="linenos">1207</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="extract_date-1208"><a href="#extract_date-1208"><span class="linenos">1208</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="extract_date-1209"><a href="#extract_date-1209"><span class="linenos">1209</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span><span id="extract_date-1210"><a href="#extract_date-1210"><span class="linenos">1210</span></a> <span class="k">return</span> <span class="n">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">to</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="extract_interval">
|
|
<input id="extract_interval-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">extract_interval</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="extract_interval-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#extract_interval"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="extract_interval-1217"><a href="#extract_interval-1217"><span class="linenos">1217</span></a><span class="k">def</span><span class="w"> </span><span class="nf">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
|
|
</span><span id="extract_interval-1218"><a href="#extract_interval-1218"><span class="linenos">1218</span></a> <span class="k">try</span><span class="p">:</span>
|
|
</span><span id="extract_interval-1219"><a href="#extract_interval-1219"><span class="linenos">1219</span></a> <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">to_py</span><span class="p">())</span>
|
|
</span><span id="extract_interval-1220"><a href="#extract_interval-1220"><span class="linenos">1220</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="s2">"unit"</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
|
|
</span><span id="extract_interval-1221"><a href="#extract_interval-1221"><span class="linenos">1221</span></a> <span class="k">return</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="extract_interval-1222"><a href="#extract_interval-1222"><span class="linenos">1222</span></a> <span class="k">except</span> <span class="p">(</span><span class="n">UnsupportedUnit</span><span class="p">,</span> <span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="ne">ValueError</span><span class="p">):</span>
|
|
</span><span id="extract_interval-1223"><a href="#extract_interval-1223"><span class="linenos">1223</span></a> <span class="k">return</span> <span class="kc">None</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="extract_type">
|
|
<input id="extract_type-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">extract_type</span><span class="signature pdoc-code condensed">(<span class="param"><span class="o">*</span><span class="n">expressions</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="extract_type-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#extract_type"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="extract_type-1226"><a href="#extract_type-1226"><span class="linenos">1226</span></a><span class="k">def</span><span class="w"> </span><span class="nf">extract_type</span><span class="p">(</span><span class="o">*</span><span class="n">expressions</span><span class="p">):</span>
|
|
</span><span id="extract_type-1227"><a href="#extract_type-1227"><span class="linenos">1227</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="kc">None</span>
|
|
</span><span id="extract_type-1228"><a href="#extract_type-1228"><span class="linenos">1228</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span>
|
|
</span><span id="extract_type-1229"><a href="#extract_type-1229"><span class="linenos">1229</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">to</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">)</span> <span class="k">else</span> <span class="n">expression</span><span class="o">.</span><span class="n">type</span>
|
|
</span><span id="extract_type-1230"><a href="#extract_type-1230"><span class="linenos">1230</span></a> <span class="k">if</span> <span class="n">target_type</span><span class="p">:</span>
|
|
</span><span id="extract_type-1231"><a href="#extract_type-1231"><span class="linenos">1231</span></a> <span class="k">break</span>
|
|
</span><span id="extract_type-1232"><a href="#extract_type-1232"><span class="linenos">1232</span></a>
|
|
</span><span id="extract_type-1233"><a href="#extract_type-1233"><span class="linenos">1233</span></a> <span class="k">return</span> <span class="n">target_type</span>
|
|
</span></pre></div>
|
|
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|
|
|
|
|
|
|
</section>
|
|
<section id="date_literal">
|
|
<input id="date_literal-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">date_literal</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">date</span>, </span><span class="param"><span class="n">target_type</span><span class="o">=</span><span class="kc">None</span></span><span class="return-annotation">):</span></span>
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|
|
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<label class="view-source-button" for="date_literal-view-source"><span>View Source</span></label>
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</div>
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|
<a class="headerlink" href="#date_literal"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="date_literal-1236"><a href="#date_literal-1236"><span class="linenos">1236</span></a><span class="k">def</span><span class="w"> </span><span class="nf">date_literal</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">target_type</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
|
|
</span><span id="date_literal-1237"><a href="#date_literal-1237"><span class="linenos">1237</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">target_type</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">target_type</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span>
|
|
</span><span id="date_literal-1238"><a href="#date_literal-1238"><span class="linenos">1238</span></a> <span class="n">target_type</span> <span class="o">=</span> <span class="p">(</span>
|
|
</span><span id="date_literal-1239"><a href="#date_literal-1239"><span class="linenos">1239</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATETIME</span>
|
|
</span><span id="date_literal-1240"><a href="#date_literal-1240"><span class="linenos">1240</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">)</span>
|
|
</span><span id="date_literal-1241"><a href="#date_literal-1241"><span class="linenos">1241</span></a> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span>
|
|
</span><span id="date_literal-1242"><a href="#date_literal-1242"><span class="linenos">1242</span></a> <span class="p">)</span>
|
|
</span><span id="date_literal-1243"><a href="#date_literal-1243"><span class="linenos">1243</span></a>
|
|
</span><span id="date_literal-1244"><a href="#date_literal-1244"><span class="linenos">1244</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">date</span><span class="p">),</span> <span class="n">target_type</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="interval">
|
|
<input id="interval-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">interval</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span>, </span><span class="param"><span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="interval-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#interval"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="interval-1247"><a href="#interval-1247"><span class="linenos">1247</span></a><span class="k">def</span><span class="w"> </span><span class="nf">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">):</span>
|
|
</span><span id="interval-1248"><a href="#interval-1248"><span class="linenos">1248</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">dateutil.relativedelta</span><span class="w"> </span><span class="kn">import</span> <span class="n">relativedelta</span>
|
|
</span><span id="interval-1249"><a href="#interval-1249"><span class="linenos">1249</span></a>
|
|
</span><span id="interval-1250"><a href="#interval-1250"><span class="linenos">1250</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span>
|
|
</span><span id="interval-1251"><a href="#interval-1251"><span class="linenos">1251</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">years</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1252"><a href="#interval-1252"><span class="linenos">1252</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span>
|
|
</span><span id="interval-1253"><a href="#interval-1253"><span class="linenos">1253</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">3</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1254"><a href="#interval-1254"><span class="linenos">1254</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span>
|
|
</span><span id="interval-1255"><a href="#interval-1255"><span class="linenos">1255</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1256"><a href="#interval-1256"><span class="linenos">1256</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span>
|
|
</span><span id="interval-1257"><a href="#interval-1257"><span class="linenos">1257</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">weeks</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1258"><a href="#interval-1258"><span class="linenos">1258</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span>
|
|
</span><span id="interval-1259"><a href="#interval-1259"><span class="linenos">1259</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1260"><a href="#interval-1260"><span class="linenos">1260</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"hour"</span><span class="p">:</span>
|
|
</span><span id="interval-1261"><a href="#interval-1261"><span class="linenos">1261</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">hours</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1262"><a href="#interval-1262"><span class="linenos">1262</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"minute"</span><span class="p">:</span>
|
|
</span><span id="interval-1263"><a href="#interval-1263"><span class="linenos">1263</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">minutes</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1264"><a href="#interval-1264"><span class="linenos">1264</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"second"</span><span class="p">:</span>
|
|
</span><span id="interval-1265"><a href="#interval-1265"><span class="linenos">1265</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span>
|
|
</span><span id="interval-1266"><a href="#interval-1266"><span class="linenos">1266</span></a>
|
|
</span><span id="interval-1267"><a href="#interval-1267"><span class="linenos">1267</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="date_floor">
|
|
<input id="date_floor-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">date_floor</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span>,</span><span class="param"> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">dialect</span><span class="p">:</span> <span class="n"><a href="../dialects.html#Dialect">sqlglot.dialects.Dialect</a></span></span><span class="return-annotation">) -> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="date_floor-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#date_floor"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="date_floor-1270"><a href="#date_floor-1270"><span class="linenos">1270</span></a><span class="k">def</span><span class="w"> </span><span class="nf">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span>
|
|
</span><span id="date_floor-1271"><a href="#date_floor-1271"><span class="linenos">1271</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span>
|
|
</span><span id="date_floor-1272"><a href="#date_floor-1272"><span class="linenos">1272</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="date_floor-1273"><a href="#date_floor-1273"><span class="linenos">1273</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span>
|
|
</span><span id="date_floor-1274"><a href="#date_floor-1274"><span class="linenos">1274</span></a> <span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span>
|
|
</span><span id="date_floor-1275"><a href="#date_floor-1275"><span class="linenos">1275</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="date_floor-1276"><a href="#date_floor-1276"><span class="linenos">1276</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">6</span><span class="p">:</span>
|
|
</span><span id="date_floor-1277"><a href="#date_floor-1277"><span class="linenos">1277</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="date_floor-1278"><a href="#date_floor-1278"><span class="linenos">1278</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">:</span>
|
|
</span><span id="date_floor-1279"><a href="#date_floor-1279"><span class="linenos">1279</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="date_floor-1280"><a href="#date_floor-1280"><span class="linenos">1280</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="date_floor-1281"><a href="#date_floor-1281"><span class="linenos">1281</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="date_floor-1282"><a href="#date_floor-1282"><span class="linenos">1282</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span>
|
|
</span><span id="date_floor-1283"><a href="#date_floor-1283"><span class="linenos">1283</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="date_floor-1284"><a href="#date_floor-1284"><span class="linenos">1284</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span>
|
|
</span><span id="date_floor-1285"><a href="#date_floor-1285"><span class="linenos">1285</span></a> <span class="c1"># Assuming week starts on Monday (0) and ends on Sunday (6)</span>
|
|
</span><span id="date_floor-1286"><a href="#date_floor-1286"><span class="linenos">1286</span></a> <span class="k">return</span> <span class="n">d</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">weekday</span><span class="p">()</span> <span class="o">-</span> <span class="n">dialect</span><span class="o">.</span><span class="n">WEEK_OFFSET</span><span class="p">)</span>
|
|
</span><span id="date_floor-1287"><a href="#date_floor-1287"><span class="linenos">1287</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span>
|
|
</span><span id="date_floor-1288"><a href="#date_floor-1288"><span class="linenos">1288</span></a> <span class="k">return</span> <span class="n">d</span>
|
|
</span><span id="date_floor-1289"><a href="#date_floor-1289"><span class="linenos">1289</span></a>
|
|
</span><span id="date_floor-1290"><a href="#date_floor-1290"><span class="linenos">1290</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</section>
|
|
<section id="date_ceil">
|
|
<input id="date_ceil-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">date_ceil</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span>,</span><span class="param"> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">dialect</span><span class="p">:</span> <span class="n"><a href="../dialects.html#Dialect">sqlglot.dialects.Dialect</a></span></span><span class="return-annotation">) -> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="date_ceil-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#date_ceil"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="date_ceil-1293"><a href="#date_ceil-1293"><span class="linenos">1293</span></a><span class="k">def</span><span class="w"> </span><span class="nf">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">dialect</span><span class="p">:</span> <span class="n">Dialect</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span>
|
|
</span><span id="date_ceil-1294"><a href="#date_ceil-1294"><span class="linenos">1294</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">unit</span><span class="p">,</span> <span class="n">dialect</span><span class="p">)</span>
|
|
</span><span id="date_ceil-1295"><a href="#date_ceil-1295"><span class="linenos">1295</span></a>
|
|
</span><span id="date_ceil-1296"><a href="#date_ceil-1296"><span class="linenos">1296</span></a> <span class="k">if</span> <span class="n">floor</span> <span class="o">==</span> <span class="n">d</span><span class="p">:</span>
|
|
</span><span id="date_ceil-1297"><a href="#date_ceil-1297"><span class="linenos">1297</span></a> <span class="k">return</span> <span class="n">d</span>
|
|
</span><span id="date_ceil-1298"><a href="#date_ceil-1298"><span class="linenos">1298</span></a>
|
|
</span><span id="date_ceil-1299"><a href="#date_ceil-1299"><span class="linenos">1299</span></a> <span class="k">return</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
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|
|
|
|
|
</section>
|
|
<section id="boolean_literal">
|
|
<input id="boolean_literal-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">boolean_literal</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">condition</span></span><span class="return-annotation">):</span></span>
|
|
|
|
<label class="view-source-button" for="boolean_literal-view-source"><span>View Source</span></label>
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|
|
|
</div>
|
|
<a class="headerlink" href="#boolean_literal"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="boolean_literal-1302"><a href="#boolean_literal-1302"><span class="linenos">1302</span></a><span class="k">def</span><span class="w"> </span><span class="nf">boolean_literal</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span>
|
|
</span><span id="boolean_literal-1303"><a href="#boolean_literal-1303"><span class="linenos">1303</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">condition</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span>
|
|
</span></pre></div>
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|
|
|
</section>
|
|
<section id="gen">
|
|
<input id="gen-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">gen</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span><span class="p">:</span> <span class="n">Any</span>, </span><span class="param"><span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span></span><span class="return-annotation">) -> <span class="nb">str</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="gen-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#gen"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="gen-1332"><a href="#gen-1332"><span class="linenos">1332</span></a><span class="k">def</span><span class="w"> </span><span class="nf">gen</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
|
|
</span><span id="gen-1333"><a href="#gen-1333"><span class="linenos">1333</span></a><span class="w"> </span><span class="sd">"""Simple pseudo sql generator for quickly generating sortable and uniq strings.</span>
|
|
</span><span id="gen-1334"><a href="#gen-1334"><span class="linenos">1334</span></a>
|
|
</span><span id="gen-1335"><a href="#gen-1335"><span class="linenos">1335</span></a><span class="sd"> Sorting and deduping sql is a necessary step for optimization. Calling the actual</span>
|
|
</span><span id="gen-1336"><a href="#gen-1336"><span class="linenos">1336</span></a><span class="sd"> generator is expensive so we have a bare minimum sql generator here.</span>
|
|
</span><span id="gen-1337"><a href="#gen-1337"><span class="linenos">1337</span></a>
|
|
</span><span id="gen-1338"><a href="#gen-1338"><span class="linenos">1338</span></a><span class="sd"> Args:</span>
|
|
</span><span id="gen-1339"><a href="#gen-1339"><span class="linenos">1339</span></a><span class="sd"> expression: the expression to convert into a SQL string.</span>
|
|
</span><span id="gen-1340"><a href="#gen-1340"><span class="linenos">1340</span></a><span class="sd"> comments: whether to include the expression's comments.</span>
|
|
</span><span id="gen-1341"><a href="#gen-1341"><span class="linenos">1341</span></a><span class="sd"> """</span>
|
|
</span><span id="gen-1342"><a href="#gen-1342"><span class="linenos">1342</span></a> <span class="k">return</span> <span class="n">Gen</span><span class="p">()</span><span class="o">.</span><span class="n">gen</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">comments</span><span class="o">=</span><span class="n">comments</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
|
|
|
|
<div class="docstring"><p>Simple pseudo sql generator for quickly generating sortable and uniq strings.</p>
|
|
|
|
<p>Sorting and deduping sql is a necessary step for optimization. Calling the actual
|
|
generator is expensive so we have a bare minimum sql generator here.</p>
|
|
|
|
<h6 id="arguments">Arguments:</h6>
|
|
|
|
<ul>
|
|
<li><strong>expression:</strong> the expression to convert into a SQL string.</li>
|
|
<li><strong>comments:</strong> whether to include the expression's comments.</li>
|
|
</ul>
|
|
</div>
|
|
|
|
|
|
</section>
|
|
<section id="Gen">
|
|
<input id="Gen-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr class">
|
|
|
|
<span class="def">class</span>
|
|
<span class="name">Gen</span>:
|
|
|
|
<label class="view-source-button" for="Gen-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#Gen"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen-1345"><a href="#Gen-1345"><span class="linenos">1345</span></a><span class="k">class</span><span class="w"> </span><span class="nc">Gen</span><span class="p">:</span>
|
|
</span><span id="Gen-1346"><a href="#Gen-1346"><span class="linenos">1346</span></a> <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
|
</span><span id="Gen-1347"><a href="#Gen-1347"><span class="linenos">1347</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="Gen-1348"><a href="#Gen-1348"><span class="linenos">1348</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="Gen-1349"><a href="#Gen-1349"><span class="linenos">1349</span></a>
|
|
</span><span id="Gen-1350"><a href="#Gen-1350"><span class="linenos">1350</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gen</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
|
|
</span><span id="Gen-1351"><a href="#Gen-1351"><span class="linenos">1351</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="p">]</span>
|
|
</span><span id="Gen-1352"><a href="#Gen-1352"><span class="linenos">1352</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
|
|
</span><span id="Gen-1353"><a href="#Gen-1353"><span class="linenos">1353</span></a>
|
|
</span><span id="Gen-1354"><a href="#Gen-1354"><span class="linenos">1354</span></a> <span class="k">while</span> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="p">:</span>
|
|
</span><span id="Gen-1355"><a href="#Gen-1355"><span class="linenos">1355</span></a> <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="Gen-1356"><a href="#Gen-1356"><span class="linenos">1356</span></a>
|
|
</span><span id="Gen-1357"><a href="#Gen-1357"><span class="linenos">1357</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">):</span>
|
|
</span><span id="Gen-1358"><a href="#Gen-1358"><span class="linenos">1358</span></a> <span class="k">if</span> <span class="n">comments</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">comments</span><span class="p">:</span>
|
|
</span><span id="Gen-1359"><a href="#Gen-1359"><span class="linenos">1359</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">" /*</span><span class="si">{</span><span class="s1">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">comments</span><span class="p">)</span><span class="si">}</span><span class="s2">*/"</span><span class="p">)</span>
|
|
</span><span id="Gen-1360"><a href="#Gen-1360"><span class="linenos">1360</span></a>
|
|
</span><span id="Gen-1361"><a href="#Gen-1361"><span class="linenos">1361</span></a> <span class="n">exp_handler_name</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">key</span><span class="si">}</span><span class="s2">_sql"</span>
|
|
</span><span id="Gen-1362"><a href="#Gen-1362"><span class="linenos">1362</span></a>
|
|
</span><span id="Gen-1363"><a href="#Gen-1363"><span class="linenos">1363</span></a> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exp_handler_name</span><span class="p">):</span>
|
|
</span><span id="Gen-1364"><a href="#Gen-1364"><span class="linenos">1364</span></a> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exp_handler_name</span><span class="p">)(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="Gen-1365"><a href="#Gen-1365"><span class="linenos">1365</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Func</span><span class="p">):</span>
|
|
</span><span id="Gen-1366"><a href="#Gen-1366"><span class="linenos">1366</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_function</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="Gen-1367"><a href="#Gen-1367"><span class="linenos">1367</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="Gen-1368"><a href="#Gen-1368"><span class="linenos">1368</span></a> <span class="n">key</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">key</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="Gen-1369"><a href="#Gen-1369"><span class="linenos">1369</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2"> "</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="k">else</span> <span class="n">key</span><span class="p">)</span>
|
|
</span><span id="Gen-1370"><a href="#Gen-1370"><span class="linenos">1370</span></a> <span class="k">elif</span> <span class="nb">type</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="ow">is</span> <span class="nb">list</span><span class="p">:</span>
|
|
</span><span id="Gen-1371"><a href="#Gen-1371"><span class="linenos">1371</span></a> <span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">node</span><span class="p">):</span>
|
|
</span><span id="Gen-1372"><a href="#Gen-1372"><span class="linenos">1372</span></a> <span class="k">if</span> <span class="n">n</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1373"><a href="#Gen-1373"><span class="linenos">1373</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">n</span><span class="p">,</span> <span class="s2">","</span><span class="p">))</span>
|
|
</span><span id="Gen-1374"><a href="#Gen-1374"><span class="linenos">1374</span></a> <span class="k">if</span> <span class="n">node</span><span class="p">:</span>
|
|
</span><span id="Gen-1375"><a href="#Gen-1375"><span class="linenos">1375</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="Gen-1376"><a href="#Gen-1376"><span class="linenos">1376</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="Gen-1377"><a href="#Gen-1377"><span class="linenos">1377</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1378"><a href="#Gen-1378"><span class="linenos">1378</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">node</span><span class="p">))</span>
|
|
</span><span id="Gen-1379"><a href="#Gen-1379"><span class="linenos">1379</span></a>
|
|
</span><span id="Gen-1380"><a href="#Gen-1380"><span class="linenos">1380</span></a> <span class="k">return</span> <span class="s2">""</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="p">)</span>
|
|
</span><span id="Gen-1381"><a href="#Gen-1381"><span class="linenos">1381</span></a>
|
|
</span><span id="Gen-1382"><a href="#Gen-1382"><span class="linenos">1382</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">add_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1383"><a href="#Gen-1383"><span class="linenos">1383</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" + "</span><span class="p">)</span>
|
|
</span><span id="Gen-1384"><a href="#Gen-1384"><span class="linenos">1384</span></a>
|
|
</span><span id="Gen-1385"><a href="#Gen-1385"><span class="linenos">1385</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">alias_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1386"><a href="#Gen-1386"><span class="linenos">1386</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1387"><a href="#Gen-1387"><span class="linenos">1387</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1388"><a href="#Gen-1388"><span class="linenos">1388</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">),</span>
|
|
</span><span id="Gen-1389"><a href="#Gen-1389"><span class="linenos">1389</span></a> <span class="s2">" AS "</span><span class="p">,</span>
|
|
</span><span id="Gen-1390"><a href="#Gen-1390"><span class="linenos">1390</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"this"</span><span class="p">),</span>
|
|
</span><span id="Gen-1391"><a href="#Gen-1391"><span class="linenos">1391</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1392"><a href="#Gen-1392"><span class="linenos">1392</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1393"><a href="#Gen-1393"><span class="linenos">1393</span></a>
|
|
</span><span id="Gen-1394"><a href="#Gen-1394"><span class="linenos">1394</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">and_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1395"><a href="#Gen-1395"><span class="linenos">1395</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" AND "</span><span class="p">)</span>
|
|
</span><span id="Gen-1396"><a href="#Gen-1396"><span class="linenos">1396</span></a>
|
|
</span><span id="Gen-1397"><a href="#Gen-1397"><span class="linenos">1397</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">anonymous_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Anonymous</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1398"><a href="#Gen-1398"><span class="linenos">1398</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="Gen-1399"><a href="#Gen-1399"><span class="linenos">1399</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
|
|
</span><span id="Gen-1400"><a href="#Gen-1400"><span class="linenos">1400</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="Gen-1401"><a href="#Gen-1401"><span class="linenos">1401</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">):</span>
|
|
</span><span id="Gen-1402"><a href="#Gen-1402"><span class="linenos">1402</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="Gen-1403"><a href="#Gen-1403"><span class="linenos">1403</span></a> <span class="n">name</span> <span class="o">=</span> <span class="sa">f</span><span class="s1">'"</span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s1">"'</span> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">else</span> <span class="n">name</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="Gen-1404"><a href="#Gen-1404"><span class="linenos">1404</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="Gen-1405"><a href="#Gen-1405"><span class="linenos">1405</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
|
|
</span><span id="Gen-1406"><a href="#Gen-1406"><span class="linenos">1406</span></a> <span class="sa">f</span><span class="s2">"Anonymous.this expects a str or an Identifier, got '</span><span class="si">{</span><span class="n">this</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s2">'."</span>
|
|
</span><span id="Gen-1407"><a href="#Gen-1407"><span class="linenos">1407</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1408"><a href="#Gen-1408"><span class="linenos">1408</span></a>
|
|
</span><span id="Gen-1409"><a href="#Gen-1409"><span class="linenos">1409</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1410"><a href="#Gen-1410"><span class="linenos">1410</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1411"><a href="#Gen-1411"><span class="linenos">1411</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="Gen-1412"><a href="#Gen-1412"><span class="linenos">1412</span></a> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">,</span>
|
|
</span><span id="Gen-1413"><a href="#Gen-1413"><span class="linenos">1413</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="Gen-1414"><a href="#Gen-1414"><span class="linenos">1414</span></a> <span class="n">name</span><span class="p">,</span>
|
|
</span><span id="Gen-1415"><a href="#Gen-1415"><span class="linenos">1415</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1416"><a href="#Gen-1416"><span class="linenos">1416</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1417"><a href="#Gen-1417"><span class="linenos">1417</span></a>
|
|
</span><span id="Gen-1418"><a href="#Gen-1418"><span class="linenos">1418</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">between_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1419"><a href="#Gen-1419"><span class="linenos">1419</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1420"><a href="#Gen-1420"><span class="linenos">1420</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1421"><a href="#Gen-1421"><span class="linenos">1421</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"high"</span><span class="p">),</span>
|
|
</span><span id="Gen-1422"><a href="#Gen-1422"><span class="linenos">1422</span></a> <span class="s2">" AND "</span><span class="p">,</span>
|
|
</span><span id="Gen-1423"><a href="#Gen-1423"><span class="linenos">1423</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"low"</span><span class="p">),</span>
|
|
</span><span id="Gen-1424"><a href="#Gen-1424"><span class="linenos">1424</span></a> <span class="s2">" BETWEEN "</span><span class="p">,</span>
|
|
</span><span id="Gen-1425"><a href="#Gen-1425"><span class="linenos">1425</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen-1426"><a href="#Gen-1426"><span class="linenos">1426</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1427"><a href="#Gen-1427"><span class="linenos">1427</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1428"><a href="#Gen-1428"><span class="linenos">1428</span></a>
|
|
</span><span id="Gen-1429"><a href="#Gen-1429"><span class="linenos">1429</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">boolean_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1430"><a href="#Gen-1430"><span class="linenos">1430</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"TRUE"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span> <span class="k">else</span> <span class="s2">"FALSE"</span><span class="p">)</span>
|
|
</span><span id="Gen-1431"><a href="#Gen-1431"><span class="linenos">1431</span></a>
|
|
</span><span id="Gen-1432"><a href="#Gen-1432"><span class="linenos">1432</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">bracket_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Bracket</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1433"><a href="#Gen-1433"><span class="linenos">1433</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1434"><a href="#Gen-1434"><span class="linenos">1434</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1435"><a href="#Gen-1435"><span class="linenos">1435</span></a> <span class="s2">"]"</span><span class="p">,</span>
|
|
</span><span id="Gen-1436"><a href="#Gen-1436"><span class="linenos">1436</span></a> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">,</span>
|
|
</span><span id="Gen-1437"><a href="#Gen-1437"><span class="linenos">1437</span></a> <span class="s2">"["</span><span class="p">,</span>
|
|
</span><span id="Gen-1438"><a href="#Gen-1438"><span class="linenos">1438</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen-1439"><a href="#Gen-1439"><span class="linenos">1439</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1440"><a href="#Gen-1440"><span class="linenos">1440</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1441"><a href="#Gen-1441"><span class="linenos">1441</span></a>
|
|
</span><span id="Gen-1442"><a href="#Gen-1442"><span class="linenos">1442</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">column_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1443"><a href="#Gen-1443"><span class="linenos">1443</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">parts</span><span class="p">):</span>
|
|
</span><span id="Gen-1444"><a href="#Gen-1444"><span class="linenos">1444</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">p</span><span class="p">,</span> <span class="s2">"."</span><span class="p">))</span>
|
|
</span><span id="Gen-1445"><a href="#Gen-1445"><span class="linenos">1445</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="Gen-1446"><a href="#Gen-1446"><span class="linenos">1446</span></a>
|
|
</span><span id="Gen-1447"><a href="#Gen-1447"><span class="linenos">1447</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">datatype_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1448"><a href="#Gen-1448"><span class="linenos">1448</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="Gen-1449"><a href="#Gen-1449"><span class="linenos">1449</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2"> "</span><span class="p">)</span>
|
|
</span><span id="Gen-1450"><a href="#Gen-1450"><span class="linenos">1450</span></a>
|
|
</span><span id="Gen-1451"><a href="#Gen-1451"><span class="linenos">1451</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">div_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1452"><a href="#Gen-1452"><span class="linenos">1452</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" / "</span><span class="p">)</span>
|
|
</span><span id="Gen-1453"><a href="#Gen-1453"><span class="linenos">1453</span></a>
|
|
</span><span id="Gen-1454"><a href="#Gen-1454"><span class="linenos">1454</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">dot_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Dot</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1455"><a href="#Gen-1455"><span class="linenos">1455</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"."</span><span class="p">)</span>
|
|
</span><span id="Gen-1456"><a href="#Gen-1456"><span class="linenos">1456</span></a>
|
|
</span><span id="Gen-1457"><a href="#Gen-1457"><span class="linenos">1457</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">eq_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1458"><a href="#Gen-1458"><span class="linenos">1458</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" = "</span><span class="p">)</span>
|
|
</span><span id="Gen-1459"><a href="#Gen-1459"><span class="linenos">1459</span></a>
|
|
</span><span id="Gen-1460"><a href="#Gen-1460"><span class="linenos">1460</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">from_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1461"><a href="#Gen-1461"><span class="linenos">1461</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">"FROM "</span><span class="p">))</span>
|
|
</span><span id="Gen-1462"><a href="#Gen-1462"><span class="linenos">1462</span></a>
|
|
</span><span id="Gen-1463"><a href="#Gen-1463"><span class="linenos">1463</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gt_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1464"><a href="#Gen-1464"><span class="linenos">1464</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" > "</span><span class="p">)</span>
|
|
</span><span id="Gen-1465"><a href="#Gen-1465"><span class="linenos">1465</span></a>
|
|
</span><span id="Gen-1466"><a href="#Gen-1466"><span class="linenos">1466</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gte_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1467"><a href="#Gen-1467"><span class="linenos">1467</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" >= "</span><span class="p">)</span>
|
|
</span><span id="Gen-1468"><a href="#Gen-1468"><span class="linenos">1468</span></a>
|
|
</span><span id="Gen-1469"><a href="#Gen-1469"><span class="linenos">1469</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">identifier_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1470"><a href="#Gen-1470"><span class="linenos">1470</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s1">'"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="si">}</span><span class="s1">"'</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">quoted</span> <span class="k">else</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="Gen-1471"><a href="#Gen-1471"><span class="linenos">1471</span></a>
|
|
</span><span id="Gen-1472"><a href="#Gen-1472"><span class="linenos">1472</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">ilike_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ILike</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1473"><a href="#Gen-1473"><span class="linenos">1473</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" ILIKE "</span><span class="p">)</span>
|
|
</span><span id="Gen-1474"><a href="#Gen-1474"><span class="linenos">1474</span></a>
|
|
</span><span id="Gen-1475"><a href="#Gen-1475"><span class="linenos">1475</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">in_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1476"><a href="#Gen-1476"><span class="linenos">1476</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">")"</span><span class="p">)</span>
|
|
</span><span id="Gen-1477"><a href="#Gen-1477"><span class="linenos">1477</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="Gen-1478"><a href="#Gen-1478"><span class="linenos">1478</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1479"><a href="#Gen-1479"><span class="linenos">1479</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1480"><a href="#Gen-1480"><span class="linenos">1480</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="Gen-1481"><a href="#Gen-1481"><span class="linenos">1481</span></a> <span class="s2">" IN "</span><span class="p">,</span>
|
|
</span><span id="Gen-1482"><a href="#Gen-1482"><span class="linenos">1482</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen-1483"><a href="#Gen-1483"><span class="linenos">1483</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1484"><a href="#Gen-1484"><span class="linenos">1484</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1485"><a href="#Gen-1485"><span class="linenos">1485</span></a>
|
|
</span><span id="Gen-1486"><a href="#Gen-1486"><span class="linenos">1486</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">intdiv_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">IntDiv</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1487"><a href="#Gen-1487"><span class="linenos">1487</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" DIV "</span><span class="p">)</span>
|
|
</span><span id="Gen-1488"><a href="#Gen-1488"><span class="linenos">1488</span></a>
|
|
</span><span id="Gen-1489"><a href="#Gen-1489"><span class="linenos">1489</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">is_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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|
</span><span id="Gen-1490"><a href="#Gen-1490"><span class="linenos">1490</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" IS "</span><span class="p">)</span>
|
|
</span><span id="Gen-1491"><a href="#Gen-1491"><span class="linenos">1491</span></a>
|
|
</span><span id="Gen-1492"><a href="#Gen-1492"><span class="linenos">1492</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">like_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Like</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1493"><a href="#Gen-1493"><span class="linenos">1493</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" Like "</span><span class="p">)</span>
|
|
</span><span id="Gen-1494"><a href="#Gen-1494"><span class="linenos">1494</span></a>
|
|
</span><span id="Gen-1495"><a href="#Gen-1495"><span class="linenos">1495</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">literal_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1496"><a href="#Gen-1496"><span class="linenos">1496</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"'</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="si">}</span><span class="s2">'"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> <span class="k">else</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="Gen-1497"><a href="#Gen-1497"><span class="linenos">1497</span></a>
|
|
</span><span id="Gen-1498"><a href="#Gen-1498"><span class="linenos">1498</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">lt_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1499"><a href="#Gen-1499"><span class="linenos">1499</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" < "</span><span class="p">)</span>
|
|
</span><span id="Gen-1500"><a href="#Gen-1500"><span class="linenos">1500</span></a>
|
|
</span><span id="Gen-1501"><a href="#Gen-1501"><span class="linenos">1501</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">lte_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1502"><a href="#Gen-1502"><span class="linenos">1502</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" <= "</span><span class="p">)</span>
|
|
</span><span id="Gen-1503"><a href="#Gen-1503"><span class="linenos">1503</span></a>
|
|
</span><span id="Gen-1504"><a href="#Gen-1504"><span class="linenos">1504</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">mod_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mod</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1505"><a href="#Gen-1505"><span class="linenos">1505</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" % "</span><span class="p">)</span>
|
|
</span><span id="Gen-1506"><a href="#Gen-1506"><span class="linenos">1506</span></a>
|
|
</span><span id="Gen-1507"><a href="#Gen-1507"><span class="linenos">1507</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">mul_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1508"><a href="#Gen-1508"><span class="linenos">1508</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" * "</span><span class="p">)</span>
|
|
</span><span id="Gen-1509"><a href="#Gen-1509"><span class="linenos">1509</span></a>
|
|
</span><span id="Gen-1510"><a href="#Gen-1510"><span class="linenos">1510</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">neg_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1511"><a href="#Gen-1511"><span class="linenos">1511</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"-"</span><span class="p">)</span>
|
|
</span><span id="Gen-1512"><a href="#Gen-1512"><span class="linenos">1512</span></a>
|
|
</span><span id="Gen-1513"><a href="#Gen-1513"><span class="linenos">1513</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">neq_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1514"><a href="#Gen-1514"><span class="linenos">1514</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" <> "</span><span class="p">)</span>
|
|
</span><span id="Gen-1515"><a href="#Gen-1515"><span class="linenos">1515</span></a>
|
|
</span><span id="Gen-1516"><a href="#Gen-1516"><span class="linenos">1516</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">not_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1517"><a href="#Gen-1517"><span class="linenos">1517</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"NOT "</span><span class="p">)</span>
|
|
</span><span id="Gen-1518"><a href="#Gen-1518"><span class="linenos">1518</span></a>
|
|
</span><span id="Gen-1519"><a href="#Gen-1519"><span class="linenos">1519</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">null_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1520"><a href="#Gen-1520"><span class="linenos">1520</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"NULL"</span><span class="p">)</span>
|
|
</span><span id="Gen-1521"><a href="#Gen-1521"><span class="linenos">1521</span></a>
|
|
</span><span id="Gen-1522"><a href="#Gen-1522"><span class="linenos">1522</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">or_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1523"><a href="#Gen-1523"><span class="linenos">1523</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" OR "</span><span class="p">)</span>
|
|
</span><span id="Gen-1524"><a href="#Gen-1524"><span class="linenos">1524</span></a>
|
|
</span><span id="Gen-1525"><a href="#Gen-1525"><span class="linenos">1525</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">paren_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1526"><a href="#Gen-1526"><span class="linenos">1526</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1527"><a href="#Gen-1527"><span class="linenos">1527</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1528"><a href="#Gen-1528"><span class="linenos">1528</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="Gen-1529"><a href="#Gen-1529"><span class="linenos">1529</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen-1530"><a href="#Gen-1530"><span class="linenos">1530</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="Gen-1531"><a href="#Gen-1531"><span class="linenos">1531</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1532"><a href="#Gen-1532"><span class="linenos">1532</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1533"><a href="#Gen-1533"><span class="linenos">1533</span></a>
|
|
</span><span id="Gen-1534"><a href="#Gen-1534"><span class="linenos">1534</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">sub_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1535"><a href="#Gen-1535"><span class="linenos">1535</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" - "</span><span class="p">)</span>
|
|
</span><span id="Gen-1536"><a href="#Gen-1536"><span class="linenos">1536</span></a>
|
|
</span><span id="Gen-1537"><a href="#Gen-1537"><span class="linenos">1537</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">subquery_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subquery</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1538"><a href="#Gen-1538"><span class="linenos">1538</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
|
</span><span id="Gen-1539"><a href="#Gen-1539"><span class="linenos">1539</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span>
|
|
</span><span id="Gen-1540"><a href="#Gen-1540"><span class="linenos">1540</span></a> <span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
|
|
</span><span id="Gen-1541"><a href="#Gen-1541"><span class="linenos">1541</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span>
|
|
</span><span id="Gen-1542"><a href="#Gen-1542"><span class="linenos">1542</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="s2">")"</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">"("</span><span class="p">))</span>
|
|
</span><span id="Gen-1543"><a href="#Gen-1543"><span class="linenos">1543</span></a>
|
|
</span><span id="Gen-1544"><a href="#Gen-1544"><span class="linenos">1544</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">table_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1545"><a href="#Gen-1545"><span class="linenos">1545</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">4</span><span class="p">)</span>
|
|
</span><span id="Gen-1546"><a href="#Gen-1546"><span class="linenos">1546</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span>
|
|
</span><span id="Gen-1547"><a href="#Gen-1547"><span class="linenos">1547</span></a> <span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
|
|
</span><span id="Gen-1548"><a href="#Gen-1548"><span class="linenos">1548</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span>
|
|
</span><span id="Gen-1549"><a href="#Gen-1549"><span class="linenos">1549</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">parts</span><span class="p">):</span>
|
|
</span><span id="Gen-1550"><a href="#Gen-1550"><span class="linenos">1550</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">p</span><span class="p">,</span> <span class="s2">"."</span><span class="p">))</span>
|
|
</span><span id="Gen-1551"><a href="#Gen-1551"><span class="linenos">1551</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="Gen-1552"><a href="#Gen-1552"><span class="linenos">1552</span></a>
|
|
</span><span id="Gen-1553"><a href="#Gen-1553"><span class="linenos">1553</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">tablealias_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1554"><a href="#Gen-1554"><span class="linenos">1554</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">columns</span>
|
|
</span><span id="Gen-1555"><a href="#Gen-1555"><span class="linenos">1555</span></a>
|
|
</span><span id="Gen-1556"><a href="#Gen-1556"><span class="linenos">1556</span></a> <span class="k">if</span> <span class="n">columns</span><span class="p">:</span>
|
|
</span><span id="Gen-1557"><a href="#Gen-1557"><span class="linenos">1557</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="s2">")"</span><span class="p">,</span> <span class="n">columns</span><span class="p">,</span> <span class="s2">"("</span><span class="p">))</span>
|
|
</span><span id="Gen-1558"><a href="#Gen-1558"><span class="linenos">1558</span></a>
|
|
</span><span id="Gen-1559"><a href="#Gen-1559"><span class="linenos">1559</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">" AS "</span><span class="p">))</span>
|
|
</span><span id="Gen-1560"><a href="#Gen-1560"><span class="linenos">1560</span></a>
|
|
</span><span id="Gen-1561"><a href="#Gen-1561"><span class="linenos">1561</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">var_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Var</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1562"><a href="#Gen-1562"><span class="linenos">1562</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span><span id="Gen-1563"><a href="#Gen-1563"><span class="linenos">1563</span></a>
|
|
</span><span id="Gen-1564"><a href="#Gen-1564"><span class="linenos">1564</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_binary</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">,</span> <span class="n">op</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1565"><a href="#Gen-1565"><span class="linenos">1565</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">op</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
|
|
</span><span id="Gen-1566"><a href="#Gen-1566"><span class="linenos">1566</span></a>
|
|
</span><span id="Gen-1567"><a href="#Gen-1567"><span class="linenos">1567</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_unary</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Unary</span><span class="p">,</span> <span class="n">op</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1568"><a href="#Gen-1568"><span class="linenos">1568</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">op</span><span class="p">))</span>
|
|
</span><span id="Gen-1569"><a href="#Gen-1569"><span class="linenos">1569</span></a>
|
|
</span><span id="Gen-1570"><a href="#Gen-1570"><span class="linenos">1570</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Func</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1571"><a href="#Gen-1571"><span class="linenos">1571</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen-1572"><a href="#Gen-1572"><span class="linenos">1572</span></a> <span class="p">(</span>
|
|
</span><span id="Gen-1573"><a href="#Gen-1573"><span class="linenos">1573</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="Gen-1574"><a href="#Gen-1574"><span class="linenos">1574</span></a> <span class="nb">list</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()),</span>
|
|
</span><span id="Gen-1575"><a href="#Gen-1575"><span class="linenos">1575</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="Gen-1576"><a href="#Gen-1576"><span class="linenos">1576</span></a> <span class="n">e</span><span class="o">.</span><span class="n">sql_name</span><span class="p">(),</span>
|
|
</span><span id="Gen-1577"><a href="#Gen-1577"><span class="linenos">1577</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1578"><a href="#Gen-1578"><span class="linenos">1578</span></a> <span class="p">)</span>
|
|
</span><span id="Gen-1579"><a href="#Gen-1579"><span class="linenos">1579</span></a>
|
|
</span><span id="Gen-1580"><a href="#Gen-1580"><span class="linenos">1580</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_args</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">arg_index</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
|
|
</span><span id="Gen-1581"><a href="#Gen-1581"><span class="linenos">1581</span></a> <span class="n">kvs</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="Gen-1582"><a href="#Gen-1582"><span class="linenos">1582</span></a> <span class="n">arg_types</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">arg_types</span><span class="p">)[</span><span class="n">arg_index</span><span class="p">:]</span> <span class="k">if</span> <span class="n">arg_index</span> <span class="k">else</span> <span class="n">node</span><span class="o">.</span><span class="n">arg_types</span>
|
|
</span><span id="Gen-1583"><a href="#Gen-1583"><span class="linenos">1583</span></a>
|
|
</span><span id="Gen-1584"><a href="#Gen-1584"><span class="linenos">1584</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">arg_types</span> <span class="ow">or</span> <span class="n">arg_types</span><span class="p">:</span>
|
|
</span><span id="Gen-1585"><a href="#Gen-1585"><span class="linenos">1585</span></a> <span class="n">v</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">k</span><span class="p">)</span>
|
|
</span><span id="Gen-1586"><a href="#Gen-1586"><span class="linenos">1586</span></a>
|
|
</span><span id="Gen-1587"><a href="#Gen-1587"><span class="linenos">1587</span></a> <span class="k">if</span> <span class="n">v</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen-1588"><a href="#Gen-1588"><span class="linenos">1588</span></a> <span class="n">kvs</span><span class="o">.</span><span class="n">append</span><span class="p">([</span><span class="sa">f</span><span class="s2">":</span><span class="si">{</span><span class="n">k</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> <span class="n">v</span><span class="p">])</span>
|
|
</span><span id="Gen-1589"><a href="#Gen-1589"><span class="linenos">1589</span></a> <span class="k">if</span> <span class="n">kvs</span><span class="p">:</span>
|
|
</span><span id="Gen-1590"><a href="#Gen-1590"><span class="linenos">1590</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">kvs</span><span class="p">)</span>
|
|
</span><span id="Gen-1591"><a href="#Gen-1591"><span class="linenos">1591</span></a> <span class="k">return</span> <span class="kc">True</span>
|
|
</span><span id="Gen-1592"><a href="#Gen-1592"><span class="linenos">1592</span></a> <span class="k">return</span> <span class="kc">False</span>
|
|
</span></pre></div>
|
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|
<div id="Gen.stack" class="classattr">
|
|
<div class="attr variable">
|
|
<span class="name">stack</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#Gen.stack"></a>
|
|
|
|
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|
|
</div>
|
|
<div id="Gen.sqls" class="classattr">
|
|
<div class="attr variable">
|
|
<span class="name">sqls</span>
|
|
|
|
|
|
</div>
|
|
<a class="headerlink" href="#Gen.sqls"></a>
|
|
|
|
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|
|
</div>
|
|
<div id="Gen.gen" class="classattr">
|
|
<input id="Gen.gen-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">gen</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span>,</span><span class="param"> <span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span></span><span class="return-annotation">) -> <span class="nb">str</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="Gen.gen-view-source"><span>View Source</span></label>
|
|
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|
</div>
|
|
<a class="headerlink" href="#Gen.gen"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.gen-1350"><a href="#Gen.gen-1350"><span class="linenos">1350</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gen</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">comments</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1351"><a href="#Gen.gen-1351"><span class="linenos">1351</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="p">]</span>
|
|
</span><span id="Gen.gen-1352"><a href="#Gen.gen-1352"><span class="linenos">1352</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
|
|
</span><span id="Gen.gen-1353"><a href="#Gen.gen-1353"><span class="linenos">1353</span></a>
|
|
</span><span id="Gen.gen-1354"><a href="#Gen.gen-1354"><span class="linenos">1354</span></a> <span class="k">while</span> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1355"><a href="#Gen.gen-1355"><span class="linenos">1355</span></a> <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="Gen.gen-1356"><a href="#Gen.gen-1356"><span class="linenos">1356</span></a>
|
|
</span><span id="Gen.gen-1357"><a href="#Gen.gen-1357"><span class="linenos">1357</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">):</span>
|
|
</span><span id="Gen.gen-1358"><a href="#Gen.gen-1358"><span class="linenos">1358</span></a> <span class="k">if</span> <span class="n">comments</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">comments</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1359"><a href="#Gen.gen-1359"><span class="linenos">1359</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">" /*</span><span class="si">{</span><span class="s1">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">comments</span><span class="p">)</span><span class="si">}</span><span class="s2">*/"</span><span class="p">)</span>
|
|
</span><span id="Gen.gen-1360"><a href="#Gen.gen-1360"><span class="linenos">1360</span></a>
|
|
</span><span id="Gen.gen-1361"><a href="#Gen.gen-1361"><span class="linenos">1361</span></a> <span class="n">exp_handler_name</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">key</span><span class="si">}</span><span class="s2">_sql"</span>
|
|
</span><span id="Gen.gen-1362"><a href="#Gen.gen-1362"><span class="linenos">1362</span></a>
|
|
</span><span id="Gen.gen-1363"><a href="#Gen.gen-1363"><span class="linenos">1363</span></a> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exp_handler_name</span><span class="p">):</span>
|
|
</span><span id="Gen.gen-1364"><a href="#Gen.gen-1364"><span class="linenos">1364</span></a> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exp_handler_name</span><span class="p">)(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="Gen.gen-1365"><a href="#Gen.gen-1365"><span class="linenos">1365</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Func</span><span class="p">):</span>
|
|
</span><span id="Gen.gen-1366"><a href="#Gen.gen-1366"><span class="linenos">1366</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_function</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
|
</span><span id="Gen.gen-1367"><a href="#Gen.gen-1367"><span class="linenos">1367</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1368"><a href="#Gen.gen-1368"><span class="linenos">1368</span></a> <span class="n">key</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">key</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="Gen.gen-1369"><a href="#Gen.gen-1369"><span class="linenos">1369</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2"> "</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="k">else</span> <span class="n">key</span><span class="p">)</span>
|
|
</span><span id="Gen.gen-1370"><a href="#Gen.gen-1370"><span class="linenos">1370</span></a> <span class="k">elif</span> <span class="nb">type</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="ow">is</span> <span class="nb">list</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1371"><a href="#Gen.gen-1371"><span class="linenos">1371</span></a> <span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">node</span><span class="p">):</span>
|
|
</span><span id="Gen.gen-1372"><a href="#Gen.gen-1372"><span class="linenos">1372</span></a> <span class="k">if</span> <span class="n">n</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1373"><a href="#Gen.gen-1373"><span class="linenos">1373</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">n</span><span class="p">,</span> <span class="s2">","</span><span class="p">))</span>
|
|
</span><span id="Gen.gen-1374"><a href="#Gen.gen-1374"><span class="linenos">1374</span></a> <span class="k">if</span> <span class="n">node</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1375"><a href="#Gen.gen-1375"><span class="linenos">1375</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span><span id="Gen.gen-1376"><a href="#Gen.gen-1376"><span class="linenos">1376</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1377"><a href="#Gen.gen-1377"><span class="linenos">1377</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.gen-1378"><a href="#Gen.gen-1378"><span class="linenos">1378</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">node</span><span class="p">))</span>
|
|
</span><span id="Gen.gen-1379"><a href="#Gen.gen-1379"><span class="linenos">1379</span></a>
|
|
</span><span id="Gen.gen-1380"><a href="#Gen.gen-1380"><span class="linenos">1380</span></a> <span class="k">return</span> <span class="s2">""</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sqls</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
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</div>
|
|
<div id="Gen.add_sql" class="classattr">
|
|
<input id="Gen.add_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">add_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Add">sqlglot.expressions.Add</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="Gen.add_sql-view-source"><span>View Source</span></label>
|
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</div>
|
|
<a class="headerlink" href="#Gen.add_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.add_sql-1382"><a href="#Gen.add_sql-1382"><span class="linenos">1382</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">add_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.add_sql-1383"><a href="#Gen.add_sql-1383"><span class="linenos">1383</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" + "</span><span class="p">)</span>
|
|
</span></pre></div>
|
|
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|
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|
|
|
|
</div>
|
|
<div id="Gen.alias_sql" class="classattr">
|
|
<input id="Gen.alias_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">alias_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Alias">sqlglot.expressions.Alias</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="Gen.alias_sql-view-source"><span>View Source</span></label>
|
|
|
|
</div>
|
|
<a class="headerlink" href="#Gen.alias_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.alias_sql-1385"><a href="#Gen.alias_sql-1385"><span class="linenos">1385</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">alias_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.alias_sql-1386"><a href="#Gen.alias_sql-1386"><span class="linenos">1386</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
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</span><span id="Gen.alias_sql-1387"><a href="#Gen.alias_sql-1387"><span class="linenos">1387</span></a> <span class="p">(</span>
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</span><span id="Gen.alias_sql-1388"><a href="#Gen.alias_sql-1388"><span class="linenos">1388</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">),</span>
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</span><span id="Gen.alias_sql-1389"><a href="#Gen.alias_sql-1389"><span class="linenos">1389</span></a> <span class="s2">" AS "</span><span class="p">,</span>
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</span><span id="Gen.alias_sql-1390"><a href="#Gen.alias_sql-1390"><span class="linenos">1390</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"this"</span><span class="p">),</span>
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</span><span id="Gen.alias_sql-1391"><a href="#Gen.alias_sql-1391"><span class="linenos">1391</span></a> <span class="p">)</span>
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</span><span id="Gen.alias_sql-1392"><a href="#Gen.alias_sql-1392"><span class="linenos">1392</span></a> <span class="p">)</span>
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</span></pre></div>
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</div>
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">and_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#And">sqlglot.expressions.And</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.and_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.and_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.and_sql-1394"><a href="#Gen.and_sql-1394"><span class="linenos">1394</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">and_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.and_sql-1395"><a href="#Gen.and_sql-1395"><span class="linenos">1395</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" AND "</span><span class="p">)</span>
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</span></pre></div>
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</div>
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<div id="Gen.anonymous_sql" class="classattr">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">anonymous_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Anonymous">sqlglot.expressions.Anonymous</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.anonymous_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.anonymous_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.anonymous_sql-1397"><a href="#Gen.anonymous_sql-1397"><span class="linenos">1397</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">anonymous_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Anonymous</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.anonymous_sql-1398"><a href="#Gen.anonymous_sql-1398"><span class="linenos">1398</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="Gen.anonymous_sql-1399"><a href="#Gen.anonymous_sql-1399"><span class="linenos">1399</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
|
|
</span><span id="Gen.anonymous_sql-1400"><a href="#Gen.anonymous_sql-1400"><span class="linenos">1400</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="Gen.anonymous_sql-1401"><a href="#Gen.anonymous_sql-1401"><span class="linenos">1401</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">):</span>
|
|
</span><span id="Gen.anonymous_sql-1402"><a href="#Gen.anonymous_sql-1402"><span class="linenos">1402</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">this</span>
|
|
</span><span id="Gen.anonymous_sql-1403"><a href="#Gen.anonymous_sql-1403"><span class="linenos">1403</span></a> <span class="n">name</span> <span class="o">=</span> <span class="sa">f</span><span class="s1">'"</span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s1">"'</span> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">else</span> <span class="n">name</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
|
|
</span><span id="Gen.anonymous_sql-1404"><a href="#Gen.anonymous_sql-1404"><span class="linenos">1404</span></a> <span class="k">else</span><span class="p">:</span>
|
|
</span><span id="Gen.anonymous_sql-1405"><a href="#Gen.anonymous_sql-1405"><span class="linenos">1405</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
|
|
</span><span id="Gen.anonymous_sql-1406"><a href="#Gen.anonymous_sql-1406"><span class="linenos">1406</span></a> <span class="sa">f</span><span class="s2">"Anonymous.this expects a str or an Identifier, got '</span><span class="si">{</span><span class="n">this</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s2">'."</span>
|
|
</span><span id="Gen.anonymous_sql-1407"><a href="#Gen.anonymous_sql-1407"><span class="linenos">1407</span></a> <span class="p">)</span>
|
|
</span><span id="Gen.anonymous_sql-1408"><a href="#Gen.anonymous_sql-1408"><span class="linenos">1408</span></a>
|
|
</span><span id="Gen.anonymous_sql-1409"><a href="#Gen.anonymous_sql-1409"><span class="linenos">1409</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen.anonymous_sql-1410"><a href="#Gen.anonymous_sql-1410"><span class="linenos">1410</span></a> <span class="p">(</span>
|
|
</span><span id="Gen.anonymous_sql-1411"><a href="#Gen.anonymous_sql-1411"><span class="linenos">1411</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="Gen.anonymous_sql-1412"><a href="#Gen.anonymous_sql-1412"><span class="linenos">1412</span></a> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">,</span>
|
|
</span><span id="Gen.anonymous_sql-1413"><a href="#Gen.anonymous_sql-1413"><span class="linenos">1413</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="Gen.anonymous_sql-1414"><a href="#Gen.anonymous_sql-1414"><span class="linenos">1414</span></a> <span class="n">name</span><span class="p">,</span>
|
|
</span><span id="Gen.anonymous_sql-1415"><a href="#Gen.anonymous_sql-1415"><span class="linenos">1415</span></a> <span class="p">)</span>
|
|
</span><span id="Gen.anonymous_sql-1416"><a href="#Gen.anonymous_sql-1416"><span class="linenos">1416</span></a> <span class="p">)</span>
|
|
</span></pre></div>
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</div>
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<div id="Gen.between_sql" class="classattr">
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<input id="Gen.between_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
|
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<span class="def">def</span>
|
|
<span class="name">between_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Between">sqlglot.expressions.Between</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.between_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.between_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.between_sql-1418"><a href="#Gen.between_sql-1418"><span class="linenos">1418</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">between_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.between_sql-1419"><a href="#Gen.between_sql-1419"><span class="linenos">1419</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen.between_sql-1420"><a href="#Gen.between_sql-1420"><span class="linenos">1420</span></a> <span class="p">(</span>
|
|
</span><span id="Gen.between_sql-1421"><a href="#Gen.between_sql-1421"><span class="linenos">1421</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"high"</span><span class="p">),</span>
|
|
</span><span id="Gen.between_sql-1422"><a href="#Gen.between_sql-1422"><span class="linenos">1422</span></a> <span class="s2">" AND "</span><span class="p">,</span>
|
|
</span><span id="Gen.between_sql-1423"><a href="#Gen.between_sql-1423"><span class="linenos">1423</span></a> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"low"</span><span class="p">),</span>
|
|
</span><span id="Gen.between_sql-1424"><a href="#Gen.between_sql-1424"><span class="linenos">1424</span></a> <span class="s2">" BETWEEN "</span><span class="p">,</span>
|
|
</span><span id="Gen.between_sql-1425"><a href="#Gen.between_sql-1425"><span class="linenos">1425</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen.between_sql-1426"><a href="#Gen.between_sql-1426"><span class="linenos">1426</span></a> <span class="p">)</span>
|
|
</span><span id="Gen.between_sql-1427"><a href="#Gen.between_sql-1427"><span class="linenos">1427</span></a> <span class="p">)</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.boolean_sql" class="classattr">
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<input id="Gen.boolean_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
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<span class="def">def</span>
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|
<span class="name">boolean_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Boolean">sqlglot.expressions.Boolean</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.boolean_sql-view-source"><span>View Source</span></label>
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</div>
|
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<a class="headerlink" href="#Gen.boolean_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.boolean_sql-1429"><a href="#Gen.boolean_sql-1429"><span class="linenos">1429</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">boolean_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.boolean_sql-1430"><a href="#Gen.boolean_sql-1430"><span class="linenos">1430</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"TRUE"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span> <span class="k">else</span> <span class="s2">"FALSE"</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.bracket_sql" class="classattr">
|
|
<input id="Gen.bracket_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
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|
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|
<span class="def">def</span>
|
|
<span class="name">bracket_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Bracket">sqlglot.expressions.Bracket</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.bracket_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.bracket_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.bracket_sql-1432"><a href="#Gen.bracket_sql-1432"><span class="linenos">1432</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">bracket_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Bracket</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.bracket_sql-1433"><a href="#Gen.bracket_sql-1433"><span class="linenos">1433</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen.bracket_sql-1434"><a href="#Gen.bracket_sql-1434"><span class="linenos">1434</span></a> <span class="p">(</span>
|
|
</span><span id="Gen.bracket_sql-1435"><a href="#Gen.bracket_sql-1435"><span class="linenos">1435</span></a> <span class="s2">"]"</span><span class="p">,</span>
|
|
</span><span id="Gen.bracket_sql-1436"><a href="#Gen.bracket_sql-1436"><span class="linenos">1436</span></a> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">,</span>
|
|
</span><span id="Gen.bracket_sql-1437"><a href="#Gen.bracket_sql-1437"><span class="linenos">1437</span></a> <span class="s2">"["</span><span class="p">,</span>
|
|
</span><span id="Gen.bracket_sql-1438"><a href="#Gen.bracket_sql-1438"><span class="linenos">1438</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen.bracket_sql-1439"><a href="#Gen.bracket_sql-1439"><span class="linenos">1439</span></a> <span class="p">)</span>
|
|
</span><span id="Gen.bracket_sql-1440"><a href="#Gen.bracket_sql-1440"><span class="linenos">1440</span></a> <span class="p">)</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.column_sql" class="classattr">
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<input id="Gen.column_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">column_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Column">sqlglot.expressions.Column</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.column_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.column_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.column_sql-1442"><a href="#Gen.column_sql-1442"><span class="linenos">1442</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">column_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.column_sql-1443"><a href="#Gen.column_sql-1443"><span class="linenos">1443</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">parts</span><span class="p">):</span>
|
|
</span><span id="Gen.column_sql-1444"><a href="#Gen.column_sql-1444"><span class="linenos">1444</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">p</span><span class="p">,</span> <span class="s2">"."</span><span class="p">))</span>
|
|
</span><span id="Gen.column_sql-1445"><a href="#Gen.column_sql-1445"><span class="linenos">1445</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.datatype_sql" class="classattr">
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<input id="Gen.datatype_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
|
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<span class="def">def</span>
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<span class="name">datatype_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#DataType">sqlglot.expressions.DataType</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.datatype_sql-1447"><a href="#Gen.datatype_sql-1447"><span class="linenos">1447</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">datatype_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.datatype_sql-1448"><a href="#Gen.datatype_sql-1448"><span class="linenos">1448</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
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</span><span id="Gen.datatype_sql-1449"><a href="#Gen.datatype_sql-1449"><span class="linenos">1449</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2"> "</span><span class="p">)</span>
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<span class="def">def</span>
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<span class="name">div_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Div">sqlglot.expressions.Div</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.div_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.div_sql-1451"><a href="#Gen.div_sql-1451"><span class="linenos">1451</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">div_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.div_sql-1452"><a href="#Gen.div_sql-1452"><span class="linenos">1452</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" / "</span><span class="p">)</span>
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">dot_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Dot">sqlglot.expressions.Dot</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.dot_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.dot_sql-1454"><a href="#Gen.dot_sql-1454"><span class="linenos">1454</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">dot_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Dot</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.dot_sql-1455"><a href="#Gen.dot_sql-1455"><span class="linenos">1455</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"."</span><span class="p">)</span>
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</span></pre></div>
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<span class="def">def</span>
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<span class="name">eq_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#EQ">sqlglot.expressions.EQ</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.eq_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.eq_sql-1457"><a href="#Gen.eq_sql-1457"><span class="linenos">1457</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">eq_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.eq_sql-1458"><a href="#Gen.eq_sql-1458"><span class="linenos">1458</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" = "</span><span class="p">)</span>
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<span class="def">def</span>
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<span class="name">from_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#From">sqlglot.expressions.From</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.from_sql-1460"><a href="#Gen.from_sql-1460"><span class="linenos">1460</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">from_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.from_sql-1461"><a href="#Gen.from_sql-1461"><span class="linenos">1461</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">"FROM "</span><span class="p">))</span>
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<span class="def">def</span>
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<span class="name">gt_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#GT">sqlglot.expressions.GT</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.gt_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.gt_sql-1463"><a href="#Gen.gt_sql-1463"><span class="linenos">1463</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gt_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.gt_sql-1464"><a href="#Gen.gt_sql-1464"><span class="linenos">1464</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" > "</span><span class="p">)</span>
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</span></pre></div>
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<span class="def">def</span>
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<span class="name">gte_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#GTE">sqlglot.expressions.GTE</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.gte_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.gte_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.gte_sql-1466"><a href="#Gen.gte_sql-1466"><span class="linenos">1466</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">gte_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.gte_sql-1467"><a href="#Gen.gte_sql-1467"><span class="linenos">1467</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" >= "</span><span class="p">)</span>
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</span></pre></div>
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<div id="Gen.identifier_sql" class="classattr">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">identifier_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Identifier">sqlglot.expressions.Identifier</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.identifier_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.identifier_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.identifier_sql-1469"><a href="#Gen.identifier_sql-1469"><span class="linenos">1469</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">identifier_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.identifier_sql-1470"><a href="#Gen.identifier_sql-1470"><span class="linenos">1470</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s1">'"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="si">}</span><span class="s1">"'</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">quoted</span> <span class="k">else</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
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</span></pre></div>
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<div id="Gen.ilike_sql" class="classattr">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">ilike_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#ILike">sqlglot.expressions.ILike</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.ilike_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.ilike_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.ilike_sql-1472"><a href="#Gen.ilike_sql-1472"><span class="linenos">1472</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">ilike_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ILike</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.ilike_sql-1473"><a href="#Gen.ilike_sql-1473"><span class="linenos">1473</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" ILIKE "</span><span class="p">)</span>
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</span></pre></div>
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<div id="Gen.in_sql" class="classattr">
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">in_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#In">sqlglot.expressions.In</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.in_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.in_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.in_sql-1475"><a href="#Gen.in_sql-1475"><span class="linenos">1475</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">in_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.in_sql-1476"><a href="#Gen.in_sql-1476"><span class="linenos">1476</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">")"</span><span class="p">)</span>
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</span><span id="Gen.in_sql-1477"><a href="#Gen.in_sql-1477"><span class="linenos">1477</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
|
</span><span id="Gen.in_sql-1478"><a href="#Gen.in_sql-1478"><span class="linenos">1478</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen.in_sql-1479"><a href="#Gen.in_sql-1479"><span class="linenos">1479</span></a> <span class="p">(</span>
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</span><span id="Gen.in_sql-1480"><a href="#Gen.in_sql-1480"><span class="linenos">1480</span></a> <span class="s2">"("</span><span class="p">,</span>
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</span><span id="Gen.in_sql-1481"><a href="#Gen.in_sql-1481"><span class="linenos">1481</span></a> <span class="s2">" IN "</span><span class="p">,</span>
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</span><span id="Gen.in_sql-1482"><a href="#Gen.in_sql-1482"><span class="linenos">1482</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen.in_sql-1483"><a href="#Gen.in_sql-1483"><span class="linenos">1483</span></a> <span class="p">)</span>
|
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</span><span id="Gen.in_sql-1484"><a href="#Gen.in_sql-1484"><span class="linenos">1484</span></a> <span class="p">)</span>
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</span></pre></div>
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">intdiv_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#IntDiv">sqlglot.expressions.IntDiv</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.intdiv_sql-1486"><a href="#Gen.intdiv_sql-1486"><span class="linenos">1486</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">intdiv_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">IntDiv</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.intdiv_sql-1487"><a href="#Gen.intdiv_sql-1487"><span class="linenos">1487</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" DIV "</span><span class="p">)</span>
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</span></pre></div>
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<span class="def">def</span>
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<span class="name">is_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Is">sqlglot.expressions.Is</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.is_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.is_sql-1489"><a href="#Gen.is_sql-1489"><span class="linenos">1489</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">is_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.is_sql-1490"><a href="#Gen.is_sql-1490"><span class="linenos">1490</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" IS "</span><span class="p">)</span>
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</span></pre></div>
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<span class="def">def</span>
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<span class="name">like_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Like">sqlglot.expressions.Like</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.like_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.like_sql-1492"><a href="#Gen.like_sql-1492"><span class="linenos">1492</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">like_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Like</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.like_sql-1493"><a href="#Gen.like_sql-1493"><span class="linenos">1493</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" Like "</span><span class="p">)</span>
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</span></pre></div>
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<span class="def">def</span>
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<span class="name">literal_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Literal">sqlglot.expressions.Literal</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.literal_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.literal_sql-1495"><a href="#Gen.literal_sql-1495"><span class="linenos">1495</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">literal_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.literal_sql-1496"><a href="#Gen.literal_sql-1496"><span class="linenos">1496</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"'</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="si">}</span><span class="s2">'"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> <span class="k">else</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
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</span></pre></div>
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">lt_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#LT">sqlglot.expressions.LT</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.lt_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.lt_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.lt_sql-1498"><a href="#Gen.lt_sql-1498"><span class="linenos">1498</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">lt_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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</span><span id="Gen.lt_sql-1499"><a href="#Gen.lt_sql-1499"><span class="linenos">1499</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" < "</span><span class="p">)</span>
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</span></pre></div>
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">lte_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#LTE">sqlglot.expressions.LTE</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.lte_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.lte_sql"></a>
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.lte_sql-1501"><a href="#Gen.lte_sql-1501"><span class="linenos">1501</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">lte_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.lte_sql-1502"><a href="#Gen.lte_sql-1502"><span class="linenos">1502</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" <= "</span><span class="p">)</span>
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|
</span></pre></div>
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<div class="attr function">
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<span class="def">def</span>
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<span class="name">mod_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Mod">sqlglot.expressions.Mod</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<a class="headerlink" href="#Gen.mod_sql"></a>
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|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.mod_sql-1504"><a href="#Gen.mod_sql-1504"><span class="linenos">1504</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">mod_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mod</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.mod_sql-1505"><a href="#Gen.mod_sql-1505"><span class="linenos">1505</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" % "</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
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<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">mul_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Mul">sqlglot.expressions.Mul</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.mul_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.mul_sql"></a>
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|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.mul_sql-1507"><a href="#Gen.mul_sql-1507"><span class="linenos">1507</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">mul_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.mul_sql-1508"><a href="#Gen.mul_sql-1508"><span class="linenos">1508</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" * "</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.neg_sql" class="classattr">
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<input id="Gen.neg_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
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<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">neg_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Neg">sqlglot.expressions.Neg</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.neg_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.neg_sql"></a>
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|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.neg_sql-1510"><a href="#Gen.neg_sql-1510"><span class="linenos">1510</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">neg_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.neg_sql-1511"><a href="#Gen.neg_sql-1511"><span class="linenos">1511</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"-"</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
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<div id="Gen.neq_sql" class="classattr">
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<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">neq_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.neq_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.neq_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.neq_sql-1513"><a href="#Gen.neq_sql-1513"><span class="linenos">1513</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">neq_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.neq_sql-1514"><a href="#Gen.neq_sql-1514"><span class="linenos">1514</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" <> "</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.not_sql" class="classattr">
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|
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<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">not_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Not">sqlglot.expressions.Not</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.not_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.not_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.not_sql-1516"><a href="#Gen.not_sql-1516"><span class="linenos">1516</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">not_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.not_sql-1517"><a href="#Gen.not_sql-1517"><span class="linenos">1517</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"NOT "</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
|
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<div id="Gen.null_sql" class="classattr">
|
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<input id="Gen.null_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
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<span class="def">def</span>
|
|
<span class="name">null_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Null">sqlglot.expressions.Null</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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|
<label class="view-source-button" for="Gen.null_sql-view-source"><span>View Source</span></label>
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<a class="headerlink" href="#Gen.null_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.null_sql-1519"><a href="#Gen.null_sql-1519"><span class="linenos">1519</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">null_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.null_sql-1520"><a href="#Gen.null_sql-1520"><span class="linenos">1520</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"NULL"</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
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<div id="Gen.or_sql" class="classattr">
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<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">or_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Or">sqlglot.expressions.Or</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.or_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.or_sql"></a>
|
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.or_sql-1522"><a href="#Gen.or_sql-1522"><span class="linenos">1522</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">or_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.or_sql-1523"><a href="#Gen.or_sql-1523"><span class="linenos">1523</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" OR "</span><span class="p">)</span>
|
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</span></pre></div>
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</div>
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<div id="Gen.paren_sql" class="classattr">
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<input id="Gen.paren_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
|
|
<span class="name">paren_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Paren">sqlglot.expressions.Paren</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.paren_sql-view-source"><span>View Source</span></label>
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</div>
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<a class="headerlink" href="#Gen.paren_sql"></a>
|
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<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.paren_sql-1525"><a href="#Gen.paren_sql-1525"><span class="linenos">1525</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">paren_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.paren_sql-1526"><a href="#Gen.paren_sql-1526"><span class="linenos">1526</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span>
|
|
</span><span id="Gen.paren_sql-1527"><a href="#Gen.paren_sql-1527"><span class="linenos">1527</span></a> <span class="p">(</span>
|
|
</span><span id="Gen.paren_sql-1528"><a href="#Gen.paren_sql-1528"><span class="linenos">1528</span></a> <span class="s2">")"</span><span class="p">,</span>
|
|
</span><span id="Gen.paren_sql-1529"><a href="#Gen.paren_sql-1529"><span class="linenos">1529</span></a> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span>
|
|
</span><span id="Gen.paren_sql-1530"><a href="#Gen.paren_sql-1530"><span class="linenos">1530</span></a> <span class="s2">"("</span><span class="p">,</span>
|
|
</span><span id="Gen.paren_sql-1531"><a href="#Gen.paren_sql-1531"><span class="linenos">1531</span></a> <span class="p">)</span>
|
|
</span><span id="Gen.paren_sql-1532"><a href="#Gen.paren_sql-1532"><span class="linenos">1532</span></a> <span class="p">)</span>
|
|
</span></pre></div>
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</div>
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<div id="Gen.sub_sql" class="classattr">
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<input id="Gen.sub_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
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<span class="def">def</span>
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|
<span class="name">sub_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Sub">sqlglot.expressions.Sub</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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<label class="view-source-button" for="Gen.sub_sql-view-source"><span>View Source</span></label>
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</div>
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|
<a class="headerlink" href="#Gen.sub_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.sub_sql-1534"><a href="#Gen.sub_sql-1534"><span class="linenos">1534</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">sub_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.sub_sql-1535"><a href="#Gen.sub_sql-1535"><span class="linenos">1535</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">" - "</span><span class="p">)</span>
|
|
</span></pre></div>
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</div>
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<div id="Gen.subquery_sql" class="classattr">
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<input id="Gen.subquery_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
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<div class="attr function">
|
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|
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<span class="def">def</span>
|
|
<span class="name">subquery_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Subquery">sqlglot.expressions.Subquery</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
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|
<label class="view-source-button" for="Gen.subquery_sql-view-source"><span>View Source</span></label>
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</div>
|
|
<a class="headerlink" href="#Gen.subquery_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.subquery_sql-1537"><a href="#Gen.subquery_sql-1537"><span class="linenos">1537</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">subquery_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subquery</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.subquery_sql-1538"><a href="#Gen.subquery_sql-1538"><span class="linenos">1538</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
|
</span><span id="Gen.subquery_sql-1539"><a href="#Gen.subquery_sql-1539"><span class="linenos">1539</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span>
|
|
</span><span id="Gen.subquery_sql-1540"><a href="#Gen.subquery_sql-1540"><span class="linenos">1540</span></a> <span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
|
|
</span><span id="Gen.subquery_sql-1541"><a href="#Gen.subquery_sql-1541"><span class="linenos">1541</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span>
|
|
</span><span id="Gen.subquery_sql-1542"><a href="#Gen.subquery_sql-1542"><span class="linenos">1542</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="s2">")"</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">"("</span><span class="p">))</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
<div id="Gen.table_sql" class="classattr">
|
|
<input id="Gen.table_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">table_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Table">sqlglot.expressions.Table</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="Gen.table_sql-view-source"><span>View Source</span></label>
|
|
|
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</div>
|
|
<a class="headerlink" href="#Gen.table_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.table_sql-1544"><a href="#Gen.table_sql-1544"><span class="linenos">1544</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">table_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.table_sql-1545"><a href="#Gen.table_sql-1545"><span class="linenos">1545</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_args</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="mi">4</span><span class="p">)</span>
|
|
</span><span id="Gen.table_sql-1546"><a href="#Gen.table_sql-1546"><span class="linenos">1546</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span>
|
|
</span><span id="Gen.table_sql-1547"><a href="#Gen.table_sql-1547"><span class="linenos">1547</span></a> <span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
|
|
</span><span id="Gen.table_sql-1548"><a href="#Gen.table_sql-1548"><span class="linenos">1548</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span>
|
|
</span><span id="Gen.table_sql-1549"><a href="#Gen.table_sql-1549"><span class="linenos">1549</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">parts</span><span class="p">):</span>
|
|
</span><span id="Gen.table_sql-1550"><a href="#Gen.table_sql-1550"><span class="linenos">1550</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">p</span><span class="p">,</span> <span class="s2">"."</span><span class="p">))</span>
|
|
</span><span id="Gen.table_sql-1551"><a href="#Gen.table_sql-1551"><span class="linenos">1551</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
|
|
</span></pre></div>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
<div id="Gen.tablealias_sql" class="classattr">
|
|
<input id="Gen.tablealias_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">tablealias_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#TableAlias">sqlglot.expressions.TableAlias</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
|
|
|
|
<label class="view-source-button" for="Gen.tablealias_sql-view-source"><span>View Source</span></label>
|
|
|
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</div>
|
|
<a class="headerlink" href="#Gen.tablealias_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.tablealias_sql-1553"><a href="#Gen.tablealias_sql-1553"><span class="linenos">1553</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">tablealias_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.tablealias_sql-1554"><a href="#Gen.tablealias_sql-1554"><span class="linenos">1554</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">columns</span>
|
|
</span><span id="Gen.tablealias_sql-1555"><a href="#Gen.tablealias_sql-1555"><span class="linenos">1555</span></a>
|
|
</span><span id="Gen.tablealias_sql-1556"><a href="#Gen.tablealias_sql-1556"><span class="linenos">1556</span></a> <span class="k">if</span> <span class="n">columns</span><span class="p">:</span>
|
|
</span><span id="Gen.tablealias_sql-1557"><a href="#Gen.tablealias_sql-1557"><span class="linenos">1557</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="s2">")"</span><span class="p">,</span> <span class="n">columns</span><span class="p">,</span> <span class="s2">"("</span><span class="p">))</span>
|
|
</span><span id="Gen.tablealias_sql-1558"><a href="#Gen.tablealias_sql-1558"><span class="linenos">1558</span></a>
|
|
</span><span id="Gen.tablealias_sql-1559"><a href="#Gen.tablealias_sql-1559"><span class="linenos">1559</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">extend</span><span class="p">((</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="s2">" AS "</span><span class="p">))</span>
|
|
</span></pre></div>
|
|
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|
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|
|
</div>
|
|
<div id="Gen.var_sql" class="classattr">
|
|
<input id="Gen.var_sql-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
|
|
<div class="attr function">
|
|
|
|
<span class="def">def</span>
|
|
<span class="name">var_sql</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">e</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Var">sqlglot.expressions.Var</a></span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span>
|
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|
<label class="view-source-button" for="Gen.var_sql-view-source"><span>View Source</span></label>
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</div>
|
|
<a class="headerlink" href="#Gen.var_sql"></a>
|
|
<div class="pdoc-code codehilite"><pre><span></span><span id="Gen.var_sql-1561"><a href="#Gen.var_sql-1561"><span class="linenos">1561</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">var_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Var</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
|
|
</span><span id="Gen.var_sql-1562"><a href="#Gen.var_sql-1562"><span class="linenos">1562</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">stack</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
|
|
</span></pre></div>
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const results = search(term);
|
|
|
|
let html;
|
|
if (results.length === 0) {
|
|
html = `No search results for '${escapeHTML(term)}'.`
|
|
} else {
|
|
html = `<h4>${results.length} search result${results.length > 1 ? "s" : ""} for '${escapeHTML(term)}'.</h4>`;
|
|
}
|
|
for (let result of results.slice(0, 10)) {
|
|
let doc = result.doc;
|
|
let url = `../../${doc.modulename.replaceAll(".", "/")}.html`;
|
|
if (doc.qualname) {
|
|
url += `#${doc.qualname}`;
|
|
}
|
|
|
|
let heading;
|
|
switch (result.doc.kind) {
|
|
case "function":
|
|
if (doc.fullname.endsWith(".__init__")) {
|
|
heading = `<span class="name">${doc.fullname.replace(/\.__init__$/, "")}</span>${doc.signature}`;
|
|
} else {
|
|
heading = `<span class="def">${doc.funcdef}</span> <span class="name">${doc.fullname}</span>${doc.signature}`;
|
|
}
|
|
break;
|
|
case "class":
|
|
heading = `<span class="def">class</span> <span class="name">${doc.fullname}</span>`;
|
|
if (doc.bases)
|
|
heading += `<wbr>(<span class="base">${doc.bases}</span>)`;
|
|
heading += `:`;
|
|
break;
|
|
case "variable":
|
|
heading = `<span class="name">${doc.fullname}</span>`;
|
|
if (doc.annotation)
|
|
heading += `<span class="annotation">${doc.annotation}</span>`;
|
|
if (doc.default_value)
|
|
heading += `<span class="default_value"> = ${doc.default_value}</span>`;
|
|
break;
|
|
default:
|
|
heading = `<span class="name">${doc.fullname}</span>`;
|
|
break;
|
|
}
|
|
html += `
|
|
<section class="search-result">
|
|
<a href="${url}" class="attr ${doc.kind}">${heading}</a>
|
|
<div class="docstring">${doc.doc}</div>
|
|
</section>
|
|
`;
|
|
|
|
}
|
|
return html;
|
|
})());
|
|
}
|
|
|
|
if (getSearchTerm()) {
|
|
initialize();
|
|
searchBox.value = getSearchTerm();
|
|
onInput();
|
|
} else {
|
|
searchBox.addEventListener("focus", initialize, {once: true});
|
|
}
|
|
|
|
searchBox.addEventListener("keydown", e => {
|
|
if (["ArrowDown", "ArrowUp", "Enter"].includes(e.key)) {
|
|
let focused = currentContent.querySelector(".search-result.focused");
|
|
if (!focused) {
|
|
currentContent.querySelector(".search-result").classList.add("focused");
|
|
} else if (
|
|
e.key === "ArrowDown"
|
|
&& focused.nextElementSibling
|
|
&& focused.nextElementSibling.classList.contains("search-result")
|
|
) {
|
|
focused.classList.remove("focused");
|
|
focused.nextElementSibling.classList.add("focused");
|
|
focused.nextElementSibling.scrollIntoView({
|
|
behavior: "smooth",
|
|
block: "nearest",
|
|
inline: "nearest"
|
|
});
|
|
} else if (
|
|
e.key === "ArrowUp"
|
|
&& focused.previousElementSibling
|
|
&& focused.previousElementSibling.classList.contains("search-result")
|
|
) {
|
|
focused.classList.remove("focused");
|
|
focused.previousElementSibling.classList.add("focused");
|
|
focused.previousElementSibling.scrollIntoView({
|
|
behavior: "smooth",
|
|
block: "nearest",
|
|
inline: "nearest"
|
|
});
|
|
} else if (
|
|
e.key === "Enter"
|
|
) {
|
|
focused.querySelector("a").click();
|
|
}
|
|
}
|
|
});
|
|
</script></body>
|
|
</html> |