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Merging upstream version 11.2.0.

Browse source 
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 15:30:09 +01:00
parent 26f7d60d8d
commit 7bd03f6735
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
32 changed files with 25185 additions and 24026 deletions
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docs/search.js
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docs/sqlglot.html
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@ -694,7 +694,7 @@
</span><span id="L-40"><a href="#L-40"><span class="linenos"> 40</span></a> <span class="n">T</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">TypeVar</span><span class="p">(</span><span class="s2">&quot;T&quot;</span><span class="p">,</span> <span class="n">bound</span><span class="o">=</span><span class="n">Expression</span><span class="p">)</span>
</span><span id="L-41"><a href="#L-41"><span class="linenos"> 41</span></a>
</span><span id="L-42"><a href="#L-42"><span class="linenos"> 42</span></a>
</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</span></a><span class="n">__version__</span> <span class="o">=</span> <span class="s2">&quot;11.1.2&quot;</span>
</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</span></a><span class="n">__version__</span> <span class="o">=</span> <span class="s2">&quot;11.1.3&quot;</span>
</span><span id="L-44"><a href="#L-44"><span class="linenos"> 44</span></a>
</span><span id="L-45"><a href="#L-45"><span class="linenos"> 45</span></a><span class="n">pretty</span> <span class="o">=</span> <span class="kc">False</span>
</span><span id="L-46"><a href="#L-46"><span class="linenos"> 46</span></a><span class="sd">&quot;&quot;&quot;Whether to format generated SQL by default.&quot;&quot;&quot;</span>

668
docs/sqlglot/dataframe/sql.html
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@ -632,7 +632,7 @@
<div class="attr function">
<span class="def">def</span>
<span class="name">createDataFrame</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">data</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725215695536&#39;</span><span class="o">&gt;</span><span class="p">],</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725215695536&#39;</span><span class="o">&gt;</span><span class="p">],</span> <span class="n">Tuple</span><span class="p">]]</span>,</span><span class="param"> <span class="n">schema</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725215622064&#39;</span><span class="o">&gt;</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">samplingRatio</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">verifySchema</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="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<span class="name">createDataFrame</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">data</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483441683968&#39;</span><span class="o">&gt;</span><span class="p">],</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483441683968&#39;</span><span class="o">&gt;</span><span class="p">],</span> <span class="n">Tuple</span><span class="p">]]</span>,</span><span class="param"> <span class="n">schema</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483443386656&#39;</span><span class="o">&gt;</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">samplingRatio</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">verifySchema</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="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<label class="view-source-button" for="SparkSession.createDataFrame-view-source"><span>View Source</span></label>
@ -1500,7 +1500,7 @@
<input id="DataFrame.__init__-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<div class="attr function">
<span class="name">DataFrame</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">spark</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725216439680&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Select">sqlglot.expressions.Select</a></span>,</span><span class="param"> <span class="n">branch_id</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">sequence_id</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">last_op</span><span class="p">:</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">dataframe</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">operations</span><span class="o">.</span><span class="n">Operation</span> <span class="o">=</span> <span class="o">&lt;</span><span class="n">Operation</span><span class="o">.</span><span class="n">INIT</span><span class="p">:</span> <span class="o">-</span><span class="mi">1</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">pending_hints</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">output_expression_container</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725216580944&#39;</span><span class="o">&gt;</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span>)</span>
<span class="name">DataFrame</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">spark</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483442251840&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n"><a href="../expressions.html#Select">sqlglot.expressions.Select</a></span>,</span><span class="param"> <span class="n">branch_id</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">sequence_id</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">last_op</span><span class="p">:</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">dataframe</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">operations</span><span class="o">.</span><span class="n">Operation</span> <span class="o">=</span> <span class="o">&lt;</span><span class="n">Operation</span><span class="o">.</span><span class="n">INIT</span><span class="p">:</span> <span class="o">-</span><span class="mi">1</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">pending_hints</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">output_expression_container</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483442487456&#39;</span><span class="o">&gt;</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span>)</span>
<label class="view-source-button" for="DataFrame.__init__-view-source"><span>View Source</span></label>
@ -2238,7 +2238,7 @@ is unlikely to come up.</p>
<div class="decorator">@operation(Operation.FROM)</div>
<span class="def">def</span>
<span class="name">fillna</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">value</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213592944&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">subset</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">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">],</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</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="return-annotation">) -> <span class="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<span class="name">fillna</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">value</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439601424&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">subset</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">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">],</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</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="return-annotation">) -> <span class="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<label class="view-source-button" for="DataFrame.fillna-view-source"><span>View Source</span></label>
@ -2307,7 +2307,7 @@ and check if it matches the type of the value provided. If not then make it null
<div class="decorator">@operation(Operation.FROM)</div>
<span class="def">def</span>
<span class="name">replace</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">to_replace</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">Dict</span><span class="p">]</span>,</span><span class="param"> <span class="n">value</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">List</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">subset</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Collection</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213796384&#39;</span><span class="o">&gt;</span><span class="p">],</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213796384&#39;</span><span class="o">&gt;</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="return-annotation">) -> <span class="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<span class="name">replace</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">to_replace</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">Dict</span><span class="p">]</span>,</span><span class="param"> <span class="n">value</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">List</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">subset</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Collection</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439717408&#39;</span><span class="o">&gt;</span><span class="p">],</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439717408&#39;</span><span class="o">&gt;</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="return-annotation">) -> <span class="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<label class="view-source-button" for="DataFrame.replace-view-source"><span>View Source</span></label>
@ -2512,7 +2512,7 @@ and check if it matches the type of the value provided. If not then make it null
<div class="decorator">@operation(Operation.NO_OP)</div>
<span class="def">def</span>
<span class="name">repartition</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">numPartitions</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213899536&#39;</span><span class="o">&gt;</span><span class="p">]</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725214009616&#39;</span><span class="o">&gt;</span></span><span class="return-annotation">) -> <span class="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<span class="name">repartition</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">numPartitions</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439886592&#39;</span><span class="o">&gt;</span><span class="p">]</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439948896&#39;</span><span class="o">&gt;</span></span><span class="return-annotation">) -> <span class="n"><a href="#DataFrame">sqlglot.dataframe.sql.DataFrame</a></span>:</span></span>
<label class="view-source-button" for="DataFrame.repartition-view-source"><span>View Source</span></label>
@ -2993,183 +2993,184 @@ and check if it matches the type of the value provided. If not then make it null
</span><span id="Column-144"><a href="#Column-144"><span class="linenos">144</span></a> <span class="k">if</span> <span class="n">is_iterable</span><span class="p">(</span><span class="n">v</span><span class="p">)</span>
</span><span id="Column-145"><a href="#Column-145"><span class="linenos">145</span></a> <span class="k">else</span> <span class="n">Column</span><span class="o">.</span><span class="n">ensure_col</span><span class="p">(</span><span class="n">v</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-146"><a href="#Column-146"><span class="linenos">146</span></a> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
</span><span id="Column-147"><a href="#Column-147"><span class="linenos">147</span></a> <span class="p">}</span>
</span><span id="Column-148"><a href="#Column-148"><span class="linenos">148</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column-149"><a href="#Column-149"><span class="linenos">149</span></a> <span class="n">callable_expression</span><span class="p">(</span><span class="o">**</span><span class="n">ensure_expression_values</span><span class="p">)</span>
</span><span id="Column-150"><a href="#Column-150"><span class="linenos">150</span></a> <span class="k">if</span> <span class="n">ensured_column</span> <span class="ow">is</span> <span class="kc">None</span>
</span><span id="Column-151"><a href="#Column-151"><span class="linenos">151</span></a> <span class="k">else</span> <span class="n">callable_expression</span><span class="p">(</span>
</span><span id="Column-152"><a href="#Column-152"><span class="linenos">152</span></a> <span class="n">this</span><span class="o">=</span><span class="n">ensured_column</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">ensure_expression_values</span>
</span><span id="Column-153"><a href="#Column-153"><span class="linenos">153</span></a> <span class="p">)</span>
</span><span id="Column-154"><a href="#Column-154"><span class="linenos">154</span></a> <span class="p">)</span>
</span><span id="Column-155"><a href="#Column-155"><span class="linenos">155</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-156"><a href="#Column-156"><span class="linenos">156</span></a>
</span><span id="Column-157"><a href="#Column-157"><span class="linenos">157</span></a> <span class="k">def</span> <span class="nf">binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-158"><a href="#Column-158"><span class="linenos">158</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column-159"><a href="#Column-159"><span class="linenos">159</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column-160"><a href="#Column-160"><span class="linenos">160</span></a> <span class="p">)</span>
</span><span id="Column-161"><a href="#Column-161"><span class="linenos">161</span></a>
</span><span id="Column-162"><a href="#Column-162"><span class="linenos">162</span></a> <span class="k">def</span> <span class="nf">inverse_binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-163"><a href="#Column-163"><span class="linenos">163</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column-164"><a href="#Column-164"><span class="linenos">164</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column-165"><a href="#Column-165"><span class="linenos">165</span></a> <span class="p">)</span>
</span><span id="Column-166"><a href="#Column-166"><span class="linenos">166</span></a>
</span><span id="Column-167"><a href="#Column-167"><span class="linenos">167</span></a> <span class="k">def</span> <span class="nf">unary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-168"><a href="#Column-168"><span class="linenos">168</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
</span><span id="Column-169"><a href="#Column-169"><span class="linenos">169</span></a>
</span><span id="Column-170"><a href="#Column-170"><span class="linenos">170</span></a> <span class="nd">@property</span>
</span><span id="Column-171"><a href="#Column-171"><span class="linenos">171</span></a> <span class="k">def</span> <span class="nf">is_alias</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="Column-172"><a href="#Column-172"><span class="linenos">172</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Alias</span><span class="p">)</span>
</span><span id="Column-173"><a href="#Column-173"><span class="linenos">173</span></a>
</span><span id="Column-174"><a href="#Column-174"><span class="linenos">174</span></a> <span class="nd">@property</span>
</span><span id="Column-175"><a href="#Column-175"><span class="linenos">175</span></a> <span class="k">def</span> <span class="nf">is_column</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="Column-176"><a href="#Column-176"><span class="linenos">176</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Column</span><span class="p">)</span>
</span><span id="Column-177"><a href="#Column-177"><span class="linenos">177</span></a>
</span><span id="Column-178"><a href="#Column-178"><span class="linenos">178</span></a> <span class="nd">@property</span>
</span><span id="Column-179"><a href="#Column-179"><span class="linenos">179</span></a> <span class="k">def</span> <span class="nf">column_expression</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">:</span>
</span><span id="Column-180"><a href="#Column-180"><span class="linenos">180</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">unalias</span><span class="p">()</span>
</span><span id="Column-181"><a href="#Column-181"><span class="linenos">181</span></a>
</span><span id="Column-182"><a href="#Column-182"><span class="linenos">182</span></a> <span class="nd">@property</span>
</span><span id="Column-183"><a href="#Column-183"><span class="linenos">183</span></a> <span class="k">def</span> <span class="nf">alias_or_name</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
</span><span id="Column-184"><a href="#Column-184"><span class="linenos">184</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="Column-185"><a href="#Column-185"><span class="linenos">185</span></a>
</span><span id="Column-186"><a href="#Column-186"><span class="linenos">186</span></a> <span class="nd">@classmethod</span>
</span><span id="Column-187"><a href="#Column-187"><span class="linenos">187</span></a> <span class="k">def</span> <span class="nf">ensure_literal</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-188"><a href="#Column-188"><span class="linenos">188</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column-189"><a href="#Column-189"><span class="linenos">189</span></a>
</span><span id="Column-190"><a href="#Column-190"><span class="linenos">190</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="bp">cls</span><span class="p">):</span>
</span><span id="Column-191"><a href="#Column-191"><span class="linenos">191</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-192"><a href="#Column-192"><span class="linenos">192</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</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="Column-193"><a href="#Column-193"><span class="linenos">193</span></a> <span class="k">return</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column-194"><a href="#Column-194"><span class="linenos">194</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column-195"><a href="#Column-195"><span class="linenos">195</span></a>
</span><span id="Column-196"><a href="#Column-196"><span class="linenos">196</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-197"><a href="#Column-197"><span class="linenos">197</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="Column-198"><a href="#Column-198"><span class="linenos">198</span></a>
</span><span id="Column-199"><a href="#Column-199"><span class="linenos">199</span></a> <span class="k">def</span> <span class="nf">set_table_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-200"><a href="#Column-200"><span class="linenos">200</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> <span class="k">if</span> <span class="n">copy</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-201"><a href="#Column-201"><span class="linenos">201</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">))</span>
</span><span id="Column-202"><a href="#Column-202"><span class="linenos">202</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
</span><span id="Column-203"><a href="#Column-203"><span class="linenos">203</span></a>
</span><span id="Column-204"><a href="#Column-204"><span class="linenos">204</span></a> <span class="k">def</span> <span class="nf">sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
</span><span id="Column-205"><a href="#Column-205"><span class="linenos">205</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="o">**</span><span class="p">{</span><span class="s2">&quot;dialect&quot;</span><span class="p">:</span> <span class="s2">&quot;spark&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">})</span>
</span><span id="Column-206"><a href="#Column-206"><span class="linenos">206</span></a>
</span><span id="Column-207"><a href="#Column-207"><span class="linenos">207</span></a> <span class="k">def</span> <span class="nf">alias</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-208"><a href="#Column-208"><span class="linenos">208</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
</span><span id="Column-209"><a href="#Column-209"><span class="linenos">209</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-210"><a href="#Column-210"><span class="linenos">210</span></a>
</span><span id="Column-211"><a href="#Column-211"><span class="linenos">211</span></a> <span class="k">def</span> <span class="nf">asc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-212"><a href="#Column-212"><span class="linenos">212</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column-213"><a href="#Column-213"><span class="linenos">213</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-214"><a href="#Column-214"><span class="linenos">214</span></a>
</span><span id="Column-215"><a href="#Column-215"><span class="linenos">215</span></a> <span class="k">def</span> <span class="nf">desc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-216"><a href="#Column-216"><span class="linenos">216</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column-217"><a href="#Column-217"><span class="linenos">217</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-218"><a href="#Column-218"><span class="linenos">218</span></a>
</span><span id="Column-219"><a href="#Column-219"><span class="linenos">219</span></a> <span class="n">asc_nulls_first</span> <span class="o">=</span> <span class="n">asc</span>
</span><span id="Column-220"><a href="#Column-220"><span class="linenos">220</span></a>
</span><span id="Column-221"><a href="#Column-221"><span class="linenos">221</span></a> <span class="k">def</span> <span class="nf">asc_nulls_last</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-222"><a href="#Column-222"><span class="linenos">222</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column-223"><a href="#Column-223"><span class="linenos">223</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-224"><a href="#Column-224"><span class="linenos">224</span></a>
</span><span id="Column-225"><a href="#Column-225"><span class="linenos">225</span></a> <span class="k">def</span> <span class="nf">desc_nulls_first</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-226"><a href="#Column-226"><span class="linenos">226</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column-227"><a href="#Column-227"><span class="linenos">227</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-228"><a href="#Column-228"><span class="linenos">228</span></a>
</span><span id="Column-229"><a href="#Column-229"><span class="linenos">229</span></a> <span class="n">desc_nulls_last</span> <span class="o">=</span> <span class="n">desc</span>
</span><span id="Column-230"><a href="#Column-230"><span class="linenos">230</span></a>
</span><span id="Column-231"><a href="#Column-231"><span class="linenos">231</span></a> <span class="k">def</span> <span class="nf">when</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">:</span> <span class="n">Column</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-232"><a href="#Column-232"><span class="linenos">232</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">when</span>
</span><span id="Column-233"><a href="#Column-233"><span class="linenos">233</span></a>
</span><span id="Column-234"><a href="#Column-234"><span class="linenos">234</span></a> <span class="n">column_with_if</span> <span class="o">=</span> <span class="n">when</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column-235"><a href="#Column-235"><span class="linenos">235</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Case</span><span class="p">):</span>
</span><span id="Column-236"><a href="#Column-236"><span class="linenos">236</span></a> <span class="k">return</span> <span class="n">column_with_if</span>
</span><span id="Column-237"><a href="#Column-237"><span class="linenos">237</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column-238"><a href="#Column-238"><span class="linenos">238</span></a> <span class="n">new_column</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">&quot;ifs&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">column_with_if</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">&quot;ifs&quot;</span><span class="p">])</span>
</span><span id="Column-239"><a href="#Column-239"><span class="linenos">239</span></a> <span class="k">return</span> <span class="n">new_column</span>
</span><span id="Column-240"><a href="#Column-240"><span class="linenos">240</span></a>
</span><span id="Column-241"><a href="#Column-241"><span class="linenos">241</span></a> <span class="k">def</span> <span class="nf">otherwise</span><span class="p">(</span><span class="bp">self</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-242"><a href="#Column-242"><span class="linenos">242</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column-243"><a href="#Column-243"><span class="linenos">243</span></a>
</span><span id="Column-244"><a href="#Column-244"><span class="linenos">244</span></a> <span class="n">true_value</span> <span class="o">=</span> <span class="n">value</span> <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">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column-245"><a href="#Column-245"><span class="linenos">245</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column-246"><a href="#Column-246"><span class="linenos">246</span></a> <span class="n">new_column</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;default&quot;</span><span class="p">,</span> <span class="n">true_value</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column-247"><a href="#Column-247"><span class="linenos">247</span></a> <span class="k">return</span> <span class="n">new_column</span>
</span><span id="Column-248"><a href="#Column-248"><span class="linenos">248</span></a>
</span><span id="Column-249"><a href="#Column-249"><span class="linenos">249</span></a> <span class="k">def</span> <span class="nf">isNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-250"><a href="#Column-250"><span class="linenos">250</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">())</span>
</span><span id="Column-251"><a href="#Column-251"><span class="linenos">251</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-252"><a href="#Column-252"><span class="linenos">252</span></a>
</span><span id="Column-253"><a href="#Column-253"><span class="linenos">253</span></a> <span class="k">def</span> <span class="nf">isNotNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-254"><a href="#Column-254"><span class="linenos">254</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">()))</span>
</span><span id="Column-255"><a href="#Column-255"><span class="linenos">255</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-256"><a href="#Column-256"><span class="linenos">256</span></a>
</span><span id="Column-257"><a href="#Column-257"><span class="linenos">257</span></a> <span class="k">def</span> <span class="nf">cast</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataType</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="nb">str</span><span class="p">,</span> <span class="n">DataType</span><span class="p">]):</span>
</span><span id="Column-258"><a href="#Column-258"><span class="linenos">258</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Column-259"><a href="#Column-259"><span class="linenos">259</span></a><span class="sd"> Functionality Difference: PySpark cast accepts a datatype instance of the datatype class</span>
</span><span id="Column-260"><a href="#Column-260"><span class="linenos">260</span></a><span class="sd"> Sqlglot doesn&#39;t currently replicate this class so it only accepts a string</span>
</span><span id="Column-261"><a href="#Column-261"><span class="linenos">261</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Column-262"><a href="#Column-262"><span class="linenos">262</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dataType</span><span class="p">,</span> <span class="n">DataType</span><span class="p">):</span>
</span><span id="Column-263"><a href="#Column-263"><span class="linenos">263</span></a> <span class="n">dataType</span> <span class="o">=</span> <span class="n">dataType</span><span class="o">.</span><span class="n">simpleString</span><span class="p">()</span>
</span><span id="Column-264"><a href="#Column-264"><span class="linenos">264</span></a> <span class="k">return</span> <span class="n">Column</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="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">dataType</span><span class="p">,</span> <span class="n">dialect</span><span class="o">=</span><span class="s2">&quot;spark&quot;</span><span class="p">))</span>
</span><span id="Column-265"><a href="#Column-265"><span class="linenos">265</span></a>
</span><span id="Column-266"><a href="#Column-266"><span class="linenos">266</span></a> <span class="k">def</span> <span class="nf">startswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-267"><a href="#Column-267"><span class="linenos">267</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column-268"><a href="#Column-268"><span class="linenos">268</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;STARTSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column-269"><a href="#Column-269"><span class="linenos">269</span></a>
</span><span id="Column-270"><a href="#Column-270"><span class="linenos">270</span></a> <span class="k">def</span> <span class="nf">endswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-271"><a href="#Column-271"><span class="linenos">271</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column-272"><a href="#Column-272"><span class="linenos">272</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;ENDSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column-273"><a href="#Column-273"><span class="linenos">273</span></a>
</span><span id="Column-274"><a href="#Column-274"><span class="linenos">274</span></a> <span class="k">def</span> <span class="nf">rlike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regexp</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-275"><a href="#Column-275"><span class="linenos">275</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-276"><a href="#Column-276"><span class="linenos">276</span></a> <span class="n">column</span><span class="o">=</span><span class="bp">self</span><span class="p">,</span> <span class="n">callable_expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">regexp</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-277"><a href="#Column-277"><span class="linenos">277</span></a> <span class="p">)</span>
</span><span id="Column-278"><a href="#Column-278"><span class="linenos">278</span></a>
</span><span id="Column-279"><a href="#Column-279"><span class="linenos">279</span></a> <span class="k">def</span> <span class="nf">like</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column-280"><a href="#Column-280"><span class="linenos">280</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-281"><a href="#Column-281"><span class="linenos">281</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-282"><a href="#Column-282"><span class="linenos">282</span></a> <span class="p">)</span>
</span><span id="Column-283"><a href="#Column-283"><span class="linenos">283</span></a>
</span><span id="Column-284"><a href="#Column-284"><span class="linenos">284</span></a> <span class="k">def</span> <span class="nf">ilike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column-285"><a href="#Column-285"><span class="linenos">285</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-286"><a href="#Column-286"><span class="linenos">286</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-287"><a href="#Column-287"><span class="linenos">287</span></a> <span class="p">)</span>
</span><span id="Column-288"><a href="#Column-288"><span class="linenos">288</span></a>
</span><span id="Column-289"><a href="#Column-289"><span class="linenos">289</span></a> <span class="k">def</span> <span class="nf">substr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">startPos</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">],</span> <span class="n">length</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-290"><a href="#Column-290"><span class="linenos">290</span></a> <span class="n">startPos</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">startPos</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">startPos</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">startPos</span>
</span><span id="Column-291"><a href="#Column-291"><span class="linenos">291</span></a> <span class="n">length</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">length</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">length</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">length</span>
</span><span id="Column-292"><a href="#Column-292"><span class="linenos">292</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-293"><a href="#Column-293"><span class="linenos">293</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Substring</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="n">startPos</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">length</span><span class="o">=</span><span class="n">length</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-294"><a href="#Column-294"><span class="linenos">294</span></a> <span class="p">)</span>
</span><span id="Column-295"><a href="#Column-295"><span class="linenos">295</span></a>
</span><span id="Column-296"><a href="#Column-296"><span class="linenos">296</span></a> <span class="k">def</span> <span class="nf">isin</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">cols</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">ColumnOrLiteral</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Iterable</span><span class="p">[</span><span class="n">ColumnOrLiteral</span><span class="p">]]):</span>
</span><span id="Column-297"><a href="#Column-297"><span class="linenos">297</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">cols</span><span class="p">)</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cols</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">set</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">))</span> <span class="k">else</span> <span class="n">cols</span> <span class="c1"># type: ignore</span>
</span><span id="Column-298"><a href="#Column-298"><span class="linenos">298</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">x</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">]</span>
</span><span id="Column-299"><a href="#Column-299"><span class="linenos">299</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span><span class="bp">self</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="n">expressions</span><span class="o">=</span><span class="n">expressions</span><span class="p">)</span> <span class="c1"># type: ignore</span>
</span><span id="Column-300"><a href="#Column-300"><span class="linenos">300</span></a>
</span><span id="Column-301"><a href="#Column-301"><span class="linenos">301</span></a> <span class="k">def</span> <span class="nf">between</span><span class="p">(</span>
</span><span id="Column-302"><a href="#Column-302"><span class="linenos">302</span></a> <span class="bp">self</span><span class="p">,</span>
</span><span id="Column-303"><a href="#Column-303"><span class="linenos">303</span></a> <span class="n">lowerBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column-304"><a href="#Column-304"><span class="linenos">304</span></a> <span class="n">upperBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column-305"><a href="#Column-305"><span class="linenos">305</span></a> <span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-306"><a href="#Column-306"><span class="linenos">306</span></a> <span class="n">lower_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column-307"><a href="#Column-307"><span class="linenos">307</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lowerBound</span>
</span><span id="Column-308"><a href="#Column-308"><span class="linenos">308</span></a> <span class="p">)</span>
</span><span id="Column-309"><a href="#Column-309"><span class="linenos">309</span></a> <span class="n">upper_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column-310"><a href="#Column-310"><span class="linenos">310</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">upperBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">upperBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">upperBound</span>
</span><span id="Column-311"><a href="#Column-311"><span class="linenos">311</span></a> <span class="p">)</span>
</span><span id="Column-312"><a href="#Column-312"><span class="linenos">312</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column-313"><a href="#Column-313"><span class="linenos">313</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">(</span>
</span><span id="Column-314"><a href="#Column-314"><span class="linenos">314</span></a> <span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span>
</span><span id="Column-315"><a href="#Column-315"><span class="linenos">315</span></a> <span class="n">low</span><span class="o">=</span><span class="n">lower_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column-316"><a href="#Column-316"><span class="linenos">316</span></a> <span class="n">high</span><span class="o">=</span><span class="n">upper_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column-317"><a href="#Column-317"><span class="linenos">317</span></a> <span class="p">)</span>
</span><span id="Column-318"><a href="#Column-318"><span class="linenos">318</span></a> <span class="p">)</span>
</span><span id="Column-319"><a href="#Column-319"><span class="linenos">319</span></a>
</span><span id="Column-320"><a href="#Column-320"><span class="linenos">320</span></a> <span class="k">def</span> <span class="nf">over</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">window</span><span class="p">:</span> <span class="n">WindowSpec</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-321"><a href="#Column-321"><span class="linenos">321</span></a> <span class="n">window_expression</span> <span class="o">=</span> <span class="n">window</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column-322"><a href="#Column-322"><span class="linenos">322</span></a> <span class="n">window_expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column-323"><a href="#Column-323"><span class="linenos">323</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">window_expression</span><span class="p">)</span>
</span><span id="Column-147"><a href="#Column-147"><span class="linenos">147</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><span id="Column-148"><a href="#Column-148"><span class="linenos">148</span></a> <span class="p">}</span>
</span><span id="Column-149"><a href="#Column-149"><span class="linenos">149</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column-150"><a href="#Column-150"><span class="linenos">150</span></a> <span class="n">callable_expression</span><span class="p">(</span><span class="o">**</span><span class="n">ensure_expression_values</span><span class="p">)</span>
</span><span id="Column-151"><a href="#Column-151"><span class="linenos">151</span></a> <span class="k">if</span> <span class="n">ensured_column</span> <span class="ow">is</span> <span class="kc">None</span>
</span><span id="Column-152"><a href="#Column-152"><span class="linenos">152</span></a> <span class="k">else</span> <span class="n">callable_expression</span><span class="p">(</span>
</span><span id="Column-153"><a href="#Column-153"><span class="linenos">153</span></a> <span class="n">this</span><span class="o">=</span><span class="n">ensured_column</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">ensure_expression_values</span>
</span><span id="Column-154"><a href="#Column-154"><span class="linenos">154</span></a> <span class="p">)</span>
</span><span id="Column-155"><a href="#Column-155"><span class="linenos">155</span></a> <span class="p">)</span>
</span><span id="Column-156"><a href="#Column-156"><span class="linenos">156</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-157"><a href="#Column-157"><span class="linenos">157</span></a>
</span><span id="Column-158"><a href="#Column-158"><span class="linenos">158</span></a> <span class="k">def</span> <span class="nf">binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-159"><a href="#Column-159"><span class="linenos">159</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column-160"><a href="#Column-160"><span class="linenos">160</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column-161"><a href="#Column-161"><span class="linenos">161</span></a> <span class="p">)</span>
</span><span id="Column-162"><a href="#Column-162"><span class="linenos">162</span></a>
</span><span id="Column-163"><a href="#Column-163"><span class="linenos">163</span></a> <span class="k">def</span> <span class="nf">inverse_binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-164"><a href="#Column-164"><span class="linenos">164</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column-165"><a href="#Column-165"><span class="linenos">165</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column-166"><a href="#Column-166"><span class="linenos">166</span></a> <span class="p">)</span>
</span><span id="Column-167"><a href="#Column-167"><span class="linenos">167</span></a>
</span><span id="Column-168"><a href="#Column-168"><span class="linenos">168</span></a> <span class="k">def</span> <span class="nf">unary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-169"><a href="#Column-169"><span class="linenos">169</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
</span><span id="Column-170"><a href="#Column-170"><span class="linenos">170</span></a>
</span><span id="Column-171"><a href="#Column-171"><span class="linenos">171</span></a> <span class="nd">@property</span>
</span><span id="Column-172"><a href="#Column-172"><span class="linenos">172</span></a> <span class="k">def</span> <span class="nf">is_alias</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="Column-173"><a href="#Column-173"><span class="linenos">173</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Alias</span><span class="p">)</span>
</span><span id="Column-174"><a href="#Column-174"><span class="linenos">174</span></a>
</span><span id="Column-175"><a href="#Column-175"><span class="linenos">175</span></a> <span class="nd">@property</span>
</span><span id="Column-176"><a href="#Column-176"><span class="linenos">176</span></a> <span class="k">def</span> <span class="nf">is_column</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="Column-177"><a href="#Column-177"><span class="linenos">177</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Column</span><span class="p">)</span>
</span><span id="Column-178"><a href="#Column-178"><span class="linenos">178</span></a>
</span><span id="Column-179"><a href="#Column-179"><span class="linenos">179</span></a> <span class="nd">@property</span>
</span><span id="Column-180"><a href="#Column-180"><span class="linenos">180</span></a> <span class="k">def</span> <span class="nf">column_expression</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">:</span>
</span><span id="Column-181"><a href="#Column-181"><span class="linenos">181</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">unalias</span><span class="p">()</span>
</span><span id="Column-182"><a href="#Column-182"><span class="linenos">182</span></a>
</span><span id="Column-183"><a href="#Column-183"><span class="linenos">183</span></a> <span class="nd">@property</span>
</span><span id="Column-184"><a href="#Column-184"><span class="linenos">184</span></a> <span class="k">def</span> <span class="nf">alias_or_name</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
</span><span id="Column-185"><a href="#Column-185"><span class="linenos">185</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="Column-186"><a href="#Column-186"><span class="linenos">186</span></a>
</span><span id="Column-187"><a href="#Column-187"><span class="linenos">187</span></a> <span class="nd">@classmethod</span>
</span><span id="Column-188"><a href="#Column-188"><span class="linenos">188</span></a> <span class="k">def</span> <span class="nf">ensure_literal</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-189"><a href="#Column-189"><span class="linenos">189</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column-190"><a href="#Column-190"><span class="linenos">190</span></a>
</span><span id="Column-191"><a href="#Column-191"><span class="linenos">191</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="bp">cls</span><span class="p">):</span>
</span><span id="Column-192"><a href="#Column-192"><span class="linenos">192</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-193"><a href="#Column-193"><span class="linenos">193</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</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="Column-194"><a href="#Column-194"><span class="linenos">194</span></a> <span class="k">return</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column-195"><a href="#Column-195"><span class="linenos">195</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column-196"><a href="#Column-196"><span class="linenos">196</span></a>
</span><span id="Column-197"><a href="#Column-197"><span class="linenos">197</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-198"><a href="#Column-198"><span class="linenos">198</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="Column-199"><a href="#Column-199"><span class="linenos">199</span></a>
</span><span id="Column-200"><a href="#Column-200"><span class="linenos">200</span></a> <span class="k">def</span> <span class="nf">set_table_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-201"><a href="#Column-201"><span class="linenos">201</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> <span class="k">if</span> <span class="n">copy</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-202"><a href="#Column-202"><span class="linenos">202</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">))</span>
</span><span id="Column-203"><a href="#Column-203"><span class="linenos">203</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
</span><span id="Column-204"><a href="#Column-204"><span class="linenos">204</span></a>
</span><span id="Column-205"><a href="#Column-205"><span class="linenos">205</span></a> <span class="k">def</span> <span class="nf">sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
</span><span id="Column-206"><a href="#Column-206"><span class="linenos">206</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="o">**</span><span class="p">{</span><span class="s2">&quot;dialect&quot;</span><span class="p">:</span> <span class="s2">&quot;spark&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">})</span>
</span><span id="Column-207"><a href="#Column-207"><span class="linenos">207</span></a>
</span><span id="Column-208"><a href="#Column-208"><span class="linenos">208</span></a> <span class="k">def</span> <span class="nf">alias</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-209"><a href="#Column-209"><span class="linenos">209</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
</span><span id="Column-210"><a href="#Column-210"><span class="linenos">210</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-211"><a href="#Column-211"><span class="linenos">211</span></a>
</span><span id="Column-212"><a href="#Column-212"><span class="linenos">212</span></a> <span class="k">def</span> <span class="nf">asc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-213"><a href="#Column-213"><span class="linenos">213</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column-214"><a href="#Column-214"><span class="linenos">214</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-215"><a href="#Column-215"><span class="linenos">215</span></a>
</span><span id="Column-216"><a href="#Column-216"><span class="linenos">216</span></a> <span class="k">def</span> <span class="nf">desc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-217"><a href="#Column-217"><span class="linenos">217</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column-218"><a href="#Column-218"><span class="linenos">218</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-219"><a href="#Column-219"><span class="linenos">219</span></a>
</span><span id="Column-220"><a href="#Column-220"><span class="linenos">220</span></a> <span class="n">asc_nulls_first</span> <span class="o">=</span> <span class="n">asc</span>
</span><span id="Column-221"><a href="#Column-221"><span class="linenos">221</span></a>
</span><span id="Column-222"><a href="#Column-222"><span class="linenos">222</span></a> <span class="k">def</span> <span class="nf">asc_nulls_last</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-223"><a href="#Column-223"><span class="linenos">223</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column-224"><a href="#Column-224"><span class="linenos">224</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-225"><a href="#Column-225"><span class="linenos">225</span></a>
</span><span id="Column-226"><a href="#Column-226"><span class="linenos">226</span></a> <span class="k">def</span> <span class="nf">desc_nulls_first</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-227"><a href="#Column-227"><span class="linenos">227</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column-228"><a href="#Column-228"><span class="linenos">228</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-229"><a href="#Column-229"><span class="linenos">229</span></a>
</span><span id="Column-230"><a href="#Column-230"><span class="linenos">230</span></a> <span class="n">desc_nulls_last</span> <span class="o">=</span> <span class="n">desc</span>
</span><span id="Column-231"><a href="#Column-231"><span class="linenos">231</span></a>
</span><span id="Column-232"><a href="#Column-232"><span class="linenos">232</span></a> <span class="k">def</span> <span class="nf">when</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">:</span> <span class="n">Column</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-233"><a href="#Column-233"><span class="linenos">233</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">when</span>
</span><span id="Column-234"><a href="#Column-234"><span class="linenos">234</span></a>
</span><span id="Column-235"><a href="#Column-235"><span class="linenos">235</span></a> <span class="n">column_with_if</span> <span class="o">=</span> <span class="n">when</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column-236"><a href="#Column-236"><span class="linenos">236</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Case</span><span class="p">):</span>
</span><span id="Column-237"><a href="#Column-237"><span class="linenos">237</span></a> <span class="k">return</span> <span class="n">column_with_if</span>
</span><span id="Column-238"><a href="#Column-238"><span class="linenos">238</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column-239"><a href="#Column-239"><span class="linenos">239</span></a> <span class="n">new_column</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">&quot;ifs&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">column_with_if</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">&quot;ifs&quot;</span><span class="p">])</span>
</span><span id="Column-240"><a href="#Column-240"><span class="linenos">240</span></a> <span class="k">return</span> <span class="n">new_column</span>
</span><span id="Column-241"><a href="#Column-241"><span class="linenos">241</span></a>
</span><span id="Column-242"><a href="#Column-242"><span class="linenos">242</span></a> <span class="k">def</span> <span class="nf">otherwise</span><span class="p">(</span><span class="bp">self</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-243"><a href="#Column-243"><span class="linenos">243</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column-244"><a href="#Column-244"><span class="linenos">244</span></a>
</span><span id="Column-245"><a href="#Column-245"><span class="linenos">245</span></a> <span class="n">true_value</span> <span class="o">=</span> <span class="n">value</span> <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">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column-246"><a href="#Column-246"><span class="linenos">246</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column-247"><a href="#Column-247"><span class="linenos">247</span></a> <span class="n">new_column</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;default&quot;</span><span class="p">,</span> <span class="n">true_value</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column-248"><a href="#Column-248"><span class="linenos">248</span></a> <span class="k">return</span> <span class="n">new_column</span>
</span><span id="Column-249"><a href="#Column-249"><span class="linenos">249</span></a>
</span><span id="Column-250"><a href="#Column-250"><span class="linenos">250</span></a> <span class="k">def</span> <span class="nf">isNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-251"><a href="#Column-251"><span class="linenos">251</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">())</span>
</span><span id="Column-252"><a href="#Column-252"><span class="linenos">252</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-253"><a href="#Column-253"><span class="linenos">253</span></a>
</span><span id="Column-254"><a href="#Column-254"><span class="linenos">254</span></a> <span class="k">def</span> <span class="nf">isNotNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-255"><a href="#Column-255"><span class="linenos">255</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">()))</span>
</span><span id="Column-256"><a href="#Column-256"><span class="linenos">256</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column-257"><a href="#Column-257"><span class="linenos">257</span></a>
</span><span id="Column-258"><a href="#Column-258"><span class="linenos">258</span></a> <span class="k">def</span> <span class="nf">cast</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataType</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="nb">str</span><span class="p">,</span> <span class="n">DataType</span><span class="p">]):</span>
</span><span id="Column-259"><a href="#Column-259"><span class="linenos">259</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Column-260"><a href="#Column-260"><span class="linenos">260</span></a><span class="sd"> Functionality Difference: PySpark cast accepts a datatype instance of the datatype class</span>
</span><span id="Column-261"><a href="#Column-261"><span class="linenos">261</span></a><span class="sd"> Sqlglot doesn&#39;t currently replicate this class so it only accepts a string</span>
</span><span id="Column-262"><a href="#Column-262"><span class="linenos">262</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Column-263"><a href="#Column-263"><span class="linenos">263</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dataType</span><span class="p">,</span> <span class="n">DataType</span><span class="p">):</span>
</span><span id="Column-264"><a href="#Column-264"><span class="linenos">264</span></a> <span class="n">dataType</span> <span class="o">=</span> <span class="n">dataType</span><span class="o">.</span><span class="n">simpleString</span><span class="p">()</span>
</span><span id="Column-265"><a href="#Column-265"><span class="linenos">265</span></a> <span class="k">return</span> <span class="n">Column</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="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">dataType</span><span class="p">,</span> <span class="n">dialect</span><span class="o">=</span><span class="s2">&quot;spark&quot;</span><span class="p">))</span>
</span><span id="Column-266"><a href="#Column-266"><span class="linenos">266</span></a>
</span><span id="Column-267"><a href="#Column-267"><span class="linenos">267</span></a> <span class="k">def</span> <span class="nf">startswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-268"><a href="#Column-268"><span class="linenos">268</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column-269"><a href="#Column-269"><span class="linenos">269</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;STARTSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column-270"><a href="#Column-270"><span class="linenos">270</span></a>
</span><span id="Column-271"><a href="#Column-271"><span class="linenos">271</span></a> <span class="k">def</span> <span class="nf">endswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-272"><a href="#Column-272"><span class="linenos">272</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column-273"><a href="#Column-273"><span class="linenos">273</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;ENDSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column-274"><a href="#Column-274"><span class="linenos">274</span></a>
</span><span id="Column-275"><a href="#Column-275"><span class="linenos">275</span></a> <span class="k">def</span> <span class="nf">rlike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regexp</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-276"><a href="#Column-276"><span class="linenos">276</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-277"><a href="#Column-277"><span class="linenos">277</span></a> <span class="n">column</span><span class="o">=</span><span class="bp">self</span><span class="p">,</span> <span class="n">callable_expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">regexp</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-278"><a href="#Column-278"><span class="linenos">278</span></a> <span class="p">)</span>
</span><span id="Column-279"><a href="#Column-279"><span class="linenos">279</span></a>
</span><span id="Column-280"><a href="#Column-280"><span class="linenos">280</span></a> <span class="k">def</span> <span class="nf">like</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column-281"><a href="#Column-281"><span class="linenos">281</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-282"><a href="#Column-282"><span class="linenos">282</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-283"><a href="#Column-283"><span class="linenos">283</span></a> <span class="p">)</span>
</span><span id="Column-284"><a href="#Column-284"><span class="linenos">284</span></a>
</span><span id="Column-285"><a href="#Column-285"><span class="linenos">285</span></a> <span class="k">def</span> <span class="nf">ilike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column-286"><a href="#Column-286"><span class="linenos">286</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-287"><a href="#Column-287"><span class="linenos">287</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-288"><a href="#Column-288"><span class="linenos">288</span></a> <span class="p">)</span>
</span><span id="Column-289"><a href="#Column-289"><span class="linenos">289</span></a>
</span><span id="Column-290"><a href="#Column-290"><span class="linenos">290</span></a> <span class="k">def</span> <span class="nf">substr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">startPos</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">],</span> <span class="n">length</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-291"><a href="#Column-291"><span class="linenos">291</span></a> <span class="n">startPos</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">startPos</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">startPos</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">startPos</span>
</span><span id="Column-292"><a href="#Column-292"><span class="linenos">292</span></a> <span class="n">length</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">length</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">length</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">length</span>
</span><span id="Column-293"><a href="#Column-293"><span class="linenos">293</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column-294"><a href="#Column-294"><span class="linenos">294</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Substring</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="n">startPos</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">length</span><span class="o">=</span><span class="n">length</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column-295"><a href="#Column-295"><span class="linenos">295</span></a> <span class="p">)</span>
</span><span id="Column-296"><a href="#Column-296"><span class="linenos">296</span></a>
</span><span id="Column-297"><a href="#Column-297"><span class="linenos">297</span></a> <span class="k">def</span> <span class="nf">isin</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">cols</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">ColumnOrLiteral</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Iterable</span><span class="p">[</span><span class="n">ColumnOrLiteral</span><span class="p">]]):</span>
</span><span id="Column-298"><a href="#Column-298"><span class="linenos">298</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">cols</span><span class="p">)</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cols</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">set</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">))</span> <span class="k">else</span> <span class="n">cols</span> <span class="c1"># type: ignore</span>
</span><span id="Column-299"><a href="#Column-299"><span class="linenos">299</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">x</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">]</span>
</span><span id="Column-300"><a href="#Column-300"><span class="linenos">300</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span><span class="bp">self</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="n">expressions</span><span class="o">=</span><span class="n">expressions</span><span class="p">)</span> <span class="c1"># type: ignore</span>
</span><span id="Column-301"><a href="#Column-301"><span class="linenos">301</span></a>
</span><span id="Column-302"><a href="#Column-302"><span class="linenos">302</span></a> <span class="k">def</span> <span class="nf">between</span><span class="p">(</span>
</span><span id="Column-303"><a href="#Column-303"><span class="linenos">303</span></a> <span class="bp">self</span><span class="p">,</span>
</span><span id="Column-304"><a href="#Column-304"><span class="linenos">304</span></a> <span class="n">lowerBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column-305"><a href="#Column-305"><span class="linenos">305</span></a> <span class="n">upperBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column-306"><a href="#Column-306"><span class="linenos">306</span></a> <span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-307"><a href="#Column-307"><span class="linenos">307</span></a> <span class="n">lower_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column-308"><a href="#Column-308"><span class="linenos">308</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lowerBound</span>
</span><span id="Column-309"><a href="#Column-309"><span class="linenos">309</span></a> <span class="p">)</span>
</span><span id="Column-310"><a href="#Column-310"><span class="linenos">310</span></a> <span class="n">upper_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column-311"><a href="#Column-311"><span class="linenos">311</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">upperBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">upperBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">upperBound</span>
</span><span id="Column-312"><a href="#Column-312"><span class="linenos">312</span></a> <span class="p">)</span>
</span><span id="Column-313"><a href="#Column-313"><span class="linenos">313</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column-314"><a href="#Column-314"><span class="linenos">314</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">(</span>
</span><span id="Column-315"><a href="#Column-315"><span class="linenos">315</span></a> <span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span>
</span><span id="Column-316"><a href="#Column-316"><span class="linenos">316</span></a> <span class="n">low</span><span class="o">=</span><span class="n">lower_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column-317"><a href="#Column-317"><span class="linenos">317</span></a> <span class="n">high</span><span class="o">=</span><span class="n">upper_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column-318"><a href="#Column-318"><span class="linenos">318</span></a> <span class="p">)</span>
</span><span id="Column-319"><a href="#Column-319"><span class="linenos">319</span></a> <span class="p">)</span>
</span><span id="Column-320"><a href="#Column-320"><span class="linenos">320</span></a>
</span><span id="Column-321"><a href="#Column-321"><span class="linenos">321</span></a> <span class="k">def</span> <span class="nf">over</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">window</span><span class="p">:</span> <span class="n">WindowSpec</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column-322"><a href="#Column-322"><span class="linenos">322</span></a> <span class="n">window_expression</span> <span class="o">=</span> <span class="n">window</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column-323"><a href="#Column-323"><span class="linenos">323</span></a> <span class="n">window_expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column-324"><a href="#Column-324"><span class="linenos">324</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">window_expression</span><span class="p">)</span>
</span></pre></div>
@ -3179,7 +3180,7 @@ and check if it matches the type of the value provided. If not then make it null
<input id="Column.__init__-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<div class="attr function">
<span class="name">Column</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725214054480&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span></span>)</span>
<span class="name">Column</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">expression</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439967056&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span></span>)</span>
<label class="view-source-button" for="Column.__init__-view-source"><span>View Source</span></label>
@ -3207,7 +3208,7 @@ and check if it matches the type of the value provided. If not then make it null
<div class="decorator">@classmethod</div>
<span class="def">def</span>
<span class="name">ensure_col</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">value</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725214486192&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span></span><span class="return-annotation">):</span></span>
<span class="name">ensure_col</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">value</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483440277968&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span></span><span class="return-annotation">):</span></span>
<label class="view-source-button" for="Column.ensure_col-view-source"><span>View Source</span></label>
@ -3228,7 +3229,7 @@ and check if it matches the type of the value provided. If not then make it null
<div class="decorator">@classmethod</div>
<span class="def">def</span>
<span class="name">ensure_cols</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">args</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212552544&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n">List</span><span class="p">[</span><span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span><span class="p">]</span>:</span></span>
<span class="name">ensure_cols</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">args</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438527104&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n"><a href="../expressions.html#Expression">sqlglot.expressions.Expression</a></span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n">List</span><span class="p">[</span><span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span><span class="p">]</span>:</span></span>
<label class="view-source-button" for="Column.ensure_cols-view-source"><span>View Source</span></label>
@ -3249,7 +3250,7 @@ and check if it matches the type of the value provided. If not then make it null
<div class="decorator">@classmethod</div>
<span class="def">def</span>
<span class="name">invoke_anonymous_function</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">column</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212635904&#39;</span><span class="o">&gt;</span><span class="p">]</span>,</span><span class="param"> <span class="n">func_name</span><span class="p">:</span> <span class="nb">str</span>,</span><span class="param"> <span class="o">*</span><span class="n">args</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212692304&#39;</span><span class="o">&gt;</span><span class="p">]</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<span class="name">invoke_anonymous_function</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">column</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438591760&#39;</span><span class="o">&gt;</span><span class="p">]</span>,</span><span class="param"> <span class="n">func_name</span><span class="p">:</span> <span class="nb">str</span>,</span><span class="param"> <span class="o">*</span><span class="n">args</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438648176&#39;</span><span class="o">&gt;</span><span class="p">]</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<label class="view-source-button" for="Column.invoke_anonymous_function-view-source"><span>View Source</span></label>
@ -3276,7 +3277,7 @@ and check if it matches the type of the value provided. If not then make it null
<div class="decorator">@classmethod</div>
<span class="def">def</span>
<span class="name">invoke_expression_over_column</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">column</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212757840&#39;</span><span class="o">&gt;</span><span class="p">]</span>,</span><span class="param"> <span class="n">callable_expression</span><span class="p">:</span> <span class="n">Callable</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<span class="name">invoke_expression_over_column</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">column</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438730096&#39;</span><span class="o">&gt;</span><span class="p">]</span>,</span><span class="param"> <span class="n">callable_expression</span><span class="p">:</span> <span class="n">Callable</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<label class="view-source-button" for="Column.invoke_expression_over_column-view-source"><span>View Source</span></label>
@ -3292,15 +3293,16 @@ and check if it matches the type of the value provided. If not then make it null
</span><span id="Column.invoke_expression_over_column-144"><a href="#Column.invoke_expression_over_column-144"><span class="linenos">144</span></a> <span class="k">if</span> <span class="n">is_iterable</span><span class="p">(</span><span class="n">v</span><span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-145"><a href="#Column.invoke_expression_over_column-145"><span class="linenos">145</span></a> <span class="k">else</span> <span class="n">Column</span><span class="o">.</span><span class="n">ensure_col</span><span class="p">(</span><span class="n">v</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.invoke_expression_over_column-146"><a href="#Column.invoke_expression_over_column-146"><span class="linenos">146</span></a> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
</span><span id="Column.invoke_expression_over_column-147"><a href="#Column.invoke_expression_over_column-147"><span class="linenos">147</span></a> <span class="p">}</span>
</span><span id="Column.invoke_expression_over_column-148"><a href="#Column.invoke_expression_over_column-148"><span class="linenos">148</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column.invoke_expression_over_column-149"><a href="#Column.invoke_expression_over_column-149"><span class="linenos">149</span></a> <span class="n">callable_expression</span><span class="p">(</span><span class="o">**</span><span class="n">ensure_expression_values</span><span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-150"><a href="#Column.invoke_expression_over_column-150"><span class="linenos">150</span></a> <span class="k">if</span> <span class="n">ensured_column</span> <span class="ow">is</span> <span class="kc">None</span>
</span><span id="Column.invoke_expression_over_column-151"><a href="#Column.invoke_expression_over_column-151"><span class="linenos">151</span></a> <span class="k">else</span> <span class="n">callable_expression</span><span class="p">(</span>
</span><span id="Column.invoke_expression_over_column-152"><a href="#Column.invoke_expression_over_column-152"><span class="linenos">152</span></a> <span class="n">this</span><span class="o">=</span><span class="n">ensured_column</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">ensure_expression_values</span>
</span><span id="Column.invoke_expression_over_column-153"><a href="#Column.invoke_expression_over_column-153"><span class="linenos">153</span></a> <span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-154"><a href="#Column.invoke_expression_over_column-154"><span class="linenos">154</span></a> <span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-155"><a href="#Column.invoke_expression_over_column-155"><span class="linenos">155</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-147"><a href="#Column.invoke_expression_over_column-147"><span class="linenos">147</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><span id="Column.invoke_expression_over_column-148"><a href="#Column.invoke_expression_over_column-148"><span class="linenos">148</span></a> <span class="p">}</span>
</span><span id="Column.invoke_expression_over_column-149"><a href="#Column.invoke_expression_over_column-149"><span class="linenos">149</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column.invoke_expression_over_column-150"><a href="#Column.invoke_expression_over_column-150"><span class="linenos">150</span></a> <span class="n">callable_expression</span><span class="p">(</span><span class="o">**</span><span class="n">ensure_expression_values</span><span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-151"><a href="#Column.invoke_expression_over_column-151"><span class="linenos">151</span></a> <span class="k">if</span> <span class="n">ensured_column</span> <span class="ow">is</span> <span class="kc">None</span>
</span><span id="Column.invoke_expression_over_column-152"><a href="#Column.invoke_expression_over_column-152"><span class="linenos">152</span></a> <span class="k">else</span> <span class="n">callable_expression</span><span class="p">(</span>
</span><span id="Column.invoke_expression_over_column-153"><a href="#Column.invoke_expression_over_column-153"><span class="linenos">153</span></a> <span class="n">this</span><span class="o">=</span><span class="n">ensured_column</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">ensure_expression_values</span>
</span><span id="Column.invoke_expression_over_column-154"><a href="#Column.invoke_expression_over_column-154"><span class="linenos">154</span></a> <span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-155"><a href="#Column.invoke_expression_over_column-155"><span class="linenos">155</span></a> <span class="p">)</span>
</span><span id="Column.invoke_expression_over_column-156"><a href="#Column.invoke_expression_over_column-156"><span class="linenos">156</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3312,16 +3314,16 @@ and check if it matches the type of the value provided. If not then make it null
<div class="attr function">
<span class="def">def</span>
<span class="name">binary_op</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">klass</span><span class="p">:</span> <span class="n">Callable</span>,</span><span class="param"> <span class="n">other</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212831072&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<span class="name">binary_op</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">klass</span><span class="p">:</span> <span class="n">Callable</span>,</span><span class="param"> <span class="n">other</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438706640&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<label class="view-source-button" for="Column.binary_op-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Column.binary_op"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.binary_op-157"><a href="#Column.binary_op-157"><span class="linenos">157</span></a> <span class="k">def</span> <span class="nf">binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.binary_op-158"><a href="#Column.binary_op-158"><span class="linenos">158</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column.binary_op-159"><a href="#Column.binary_op-159"><span class="linenos">159</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column.binary_op-160"><a href="#Column.binary_op-160"><span class="linenos">160</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.binary_op-158"><a href="#Column.binary_op-158"><span class="linenos">158</span></a> <span class="k">def</span> <span class="nf">binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.binary_op-159"><a href="#Column.binary_op-159"><span class="linenos">159</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column.binary_op-160"><a href="#Column.binary_op-160"><span class="linenos">160</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column.binary_op-161"><a href="#Column.binary_op-161"><span class="linenos">161</span></a> <span class="p">)</span>
</span></pre></div>
@ -3333,16 +3335,16 @@ and check if it matches the type of the value provided. If not then make it null
<div class="attr function">
<span class="def">def</span>
<span class="name">inverse_binary_op</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">klass</span><span class="p">:</span> <span class="n">Callable</span>,</span><span class="param"> <span class="n">other</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212841200&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<span class="name">inverse_binary_op</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">klass</span><span class="p">:</span> <span class="n">Callable</span>,</span><span class="param"> <span class="n">other</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438814656&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<label class="view-source-button" for="Column.inverse_binary_op-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Column.inverse_binary_op"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.inverse_binary_op-162"><a href="#Column.inverse_binary_op-162"><span class="linenos">162</span></a> <span class="k">def</span> <span class="nf">inverse_binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.inverse_binary_op-163"><a href="#Column.inverse_binary_op-163"><span class="linenos">163</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column.inverse_binary_op-164"><a href="#Column.inverse_binary_op-164"><span class="linenos">164</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column.inverse_binary_op-165"><a href="#Column.inverse_binary_op-165"><span class="linenos">165</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.inverse_binary_op-163"><a href="#Column.inverse_binary_op-163"><span class="linenos">163</span></a> <span class="k">def</span> <span class="nf">inverse_binary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="n">ColumnOrLiteral</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.inverse_binary_op-164"><a href="#Column.inverse_binary_op-164"><span class="linenos">164</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column.inverse_binary_op-165"><a href="#Column.inverse_binary_op-165"><span class="linenos">165</span></a> <span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">Column</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</span><span id="Column.inverse_binary_op-166"><a href="#Column.inverse_binary_op-166"><span class="linenos">166</span></a> <span class="p">)</span>
</span></pre></div>
@ -3360,8 +3362,8 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.unary_op"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.unary_op-167"><a href="#Column.unary_op-167"><span class="linenos">167</span></a> <span class="k">def</span> <span class="nf">unary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.unary_op-168"><a href="#Column.unary_op-168"><span class="linenos">168</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.unary_op-168"><a href="#Column.unary_op-168"><span class="linenos">168</span></a> <span class="k">def</span> <span class="nf">unary_op</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.unary_op-169"><a href="#Column.unary_op-169"><span class="linenos">169</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">klass</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
</span></pre></div>
@ -3380,15 +3382,15 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.ensure_literal"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.ensure_literal-186"><a href="#Column.ensure_literal-186"><span class="linenos">186</span></a> <span class="nd">@classmethod</span>
</span><span id="Column.ensure_literal-187"><a href="#Column.ensure_literal-187"><span class="linenos">187</span></a> <span class="k">def</span> <span class="nf">ensure_literal</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.ensure_literal-188"><a href="#Column.ensure_literal-188"><span class="linenos">188</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column.ensure_literal-189"><a href="#Column.ensure_literal-189"><span class="linenos">189</span></a>
</span><span id="Column.ensure_literal-190"><a href="#Column.ensure_literal-190"><span class="linenos">190</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="bp">cls</span><span class="p">):</span>
</span><span id="Column.ensure_literal-191"><a href="#Column.ensure_literal-191"><span class="linenos">191</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.ensure_literal-192"><a href="#Column.ensure_literal-192"><span class="linenos">192</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</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="Column.ensure_literal-193"><a href="#Column.ensure_literal-193"><span class="linenos">193</span></a> <span class="k">return</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column.ensure_literal-194"><a href="#Column.ensure_literal-194"><span class="linenos">194</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.ensure_literal-187"><a href="#Column.ensure_literal-187"><span class="linenos">187</span></a> <span class="nd">@classmethod</span>
</span><span id="Column.ensure_literal-188"><a href="#Column.ensure_literal-188"><span class="linenos">188</span></a> <span class="k">def</span> <span class="nf">ensure_literal</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.ensure_literal-189"><a href="#Column.ensure_literal-189"><span class="linenos">189</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column.ensure_literal-190"><a href="#Column.ensure_literal-190"><span class="linenos">190</span></a>
</span><span id="Column.ensure_literal-191"><a href="#Column.ensure_literal-191"><span class="linenos">191</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="bp">cls</span><span class="p">):</span>
</span><span id="Column.ensure_literal-192"><a href="#Column.ensure_literal-192"><span class="linenos">192</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.ensure_literal-193"><a href="#Column.ensure_literal-193"><span class="linenos">193</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</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="Column.ensure_literal-194"><a href="#Column.ensure_literal-194"><span class="linenos">194</span></a> <span class="k">return</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column.ensure_literal-195"><a href="#Column.ensure_literal-195"><span class="linenos">195</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span></pre></div>
@ -3406,8 +3408,8 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.copy"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.copy-196"><a href="#Column.copy-196"><span class="linenos">196</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.copy-197"><a href="#Column.copy-197"><span class="linenos">197</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.copy-197"><a href="#Column.copy-197"><span class="linenos">197</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.copy-198"><a href="#Column.copy-198"><span class="linenos">198</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span></pre></div>
@ -3425,10 +3427,10 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.set_table_name"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.set_table_name-199"><a href="#Column.set_table_name-199"><span class="linenos">199</span></a> <span class="k">def</span> <span class="nf">set_table_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.set_table_name-200"><a href="#Column.set_table_name-200"><span class="linenos">200</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> <span class="k">if</span> <span class="n">copy</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.set_table_name-201"><a href="#Column.set_table_name-201"><span class="linenos">201</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">))</span>
</span><span id="Column.set_table_name-202"><a href="#Column.set_table_name-202"><span class="linenos">202</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.set_table_name-200"><a href="#Column.set_table_name-200"><span class="linenos">200</span></a> <span class="k">def</span> <span class="nf">set_table_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.set_table_name-201"><a href="#Column.set_table_name-201"><span class="linenos">201</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> <span class="k">if</span> <span class="n">copy</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.set_table_name-202"><a href="#Column.set_table_name-202"><span class="linenos">202</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">))</span>
</span><span id="Column.set_table_name-203"><a href="#Column.set_table_name-203"><span class="linenos">203</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
</span></pre></div>
@ -3446,8 +3448,8 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.sql"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.sql-204"><a href="#Column.sql-204"><span class="linenos">204</span></a> <span class="k">def</span> <span class="nf">sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
</span><span id="Column.sql-205"><a href="#Column.sql-205"><span class="linenos">205</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="o">**</span><span class="p">{</span><span class="s2">&quot;dialect&quot;</span><span class="p">:</span> <span class="s2">&quot;spark&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">})</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.sql-205"><a href="#Column.sql-205"><span class="linenos">205</span></a> <span class="k">def</span> <span class="nf">sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
</span><span id="Column.sql-206"><a href="#Column.sql-206"><span class="linenos">206</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="o">**</span><span class="p">{</span><span class="s2">&quot;dialect&quot;</span><span class="p">:</span> <span class="s2">&quot;spark&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">})</span>
</span></pre></div>
@ -3465,9 +3467,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.alias"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.alias-207"><a href="#Column.alias-207"><span class="linenos">207</span></a> <span class="k">def</span> <span class="nf">alias</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.alias-208"><a href="#Column.alias-208"><span class="linenos">208</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
</span><span id="Column.alias-209"><a href="#Column.alias-209"><span class="linenos">209</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.alias-208"><a href="#Column.alias-208"><span class="linenos">208</span></a> <span class="k">def</span> <span class="nf">alias</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.alias-209"><a href="#Column.alias-209"><span class="linenos">209</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
</span><span id="Column.alias-210"><a href="#Column.alias-210"><span class="linenos">210</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3485,9 +3487,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.asc"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.asc-211"><a href="#Column.asc-211"><span class="linenos">211</span></a> <span class="k">def</span> <span class="nf">asc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.asc-212"><a href="#Column.asc-212"><span class="linenos">212</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column.asc-213"><a href="#Column.asc-213"><span class="linenos">213</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.asc-212"><a href="#Column.asc-212"><span class="linenos">212</span></a> <span class="k">def</span> <span class="nf">asc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.asc-213"><a href="#Column.asc-213"><span class="linenos">213</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column.asc-214"><a href="#Column.asc-214"><span class="linenos">214</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3505,9 +3507,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.desc"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.desc-215"><a href="#Column.desc-215"><span class="linenos">215</span></a> <span class="k">def</span> <span class="nf">desc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.desc-216"><a href="#Column.desc-216"><span class="linenos">216</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column.desc-217"><a href="#Column.desc-217"><span class="linenos">217</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.desc-216"><a href="#Column.desc-216"><span class="linenos">216</span></a> <span class="k">def</span> <span class="nf">desc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.desc-217"><a href="#Column.desc-217"><span class="linenos">217</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column.desc-218"><a href="#Column.desc-218"><span class="linenos">218</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3525,9 +3527,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.asc_nulls_first"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.asc_nulls_first-211"><a href="#Column.asc_nulls_first-211"><span class="linenos">211</span></a> <span class="k">def</span> <span class="nf">asc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.asc_nulls_first-212"><a href="#Column.asc_nulls_first-212"><span class="linenos">212</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column.asc_nulls_first-213"><a href="#Column.asc_nulls_first-213"><span class="linenos">213</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.asc_nulls_first-212"><a href="#Column.asc_nulls_first-212"><span class="linenos">212</span></a> <span class="k">def</span> <span class="nf">asc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.asc_nulls_first-213"><a href="#Column.asc_nulls_first-213"><span class="linenos">213</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column.asc_nulls_first-214"><a href="#Column.asc_nulls_first-214"><span class="linenos">214</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3545,9 +3547,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.asc_nulls_last"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.asc_nulls_last-221"><a href="#Column.asc_nulls_last-221"><span class="linenos">221</span></a> <span class="k">def</span> <span class="nf">asc_nulls_last</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.asc_nulls_last-222"><a href="#Column.asc_nulls_last-222"><span class="linenos">222</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column.asc_nulls_last-223"><a href="#Column.asc_nulls_last-223"><span class="linenos">223</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.asc_nulls_last-222"><a href="#Column.asc_nulls_last-222"><span class="linenos">222</span></a> <span class="k">def</span> <span class="nf">asc_nulls_last</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.asc_nulls_last-223"><a href="#Column.asc_nulls_last-223"><span class="linenos">223</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column.asc_nulls_last-224"><a href="#Column.asc_nulls_last-224"><span class="linenos">224</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3565,9 +3567,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.desc_nulls_first"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.desc_nulls_first-225"><a href="#Column.desc_nulls_first-225"><span class="linenos">225</span></a> <span class="k">def</span> <span class="nf">desc_nulls_first</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.desc_nulls_first-226"><a href="#Column.desc_nulls_first-226"><span class="linenos">226</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column.desc_nulls_first-227"><a href="#Column.desc_nulls_first-227"><span class="linenos">227</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.desc_nulls_first-226"><a href="#Column.desc_nulls_first-226"><span class="linenos">226</span></a> <span class="k">def</span> <span class="nf">desc_nulls_first</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.desc_nulls_first-227"><a href="#Column.desc_nulls_first-227"><span class="linenos">227</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="Column.desc_nulls_first-228"><a href="#Column.desc_nulls_first-228"><span class="linenos">228</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3585,9 +3587,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.desc_nulls_last"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.desc_nulls_last-215"><a href="#Column.desc_nulls_last-215"><span class="linenos">215</span></a> <span class="k">def</span> <span class="nf">desc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.desc_nulls_last-216"><a href="#Column.desc_nulls_last-216"><span class="linenos">216</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column.desc_nulls_last-217"><a href="#Column.desc_nulls_last-217"><span class="linenos">217</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.desc_nulls_last-216"><a href="#Column.desc_nulls_last-216"><span class="linenos">216</span></a> <span class="k">def</span> <span class="nf">desc</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.desc_nulls_last-217"><a href="#Column.desc_nulls_last-217"><span class="linenos">217</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">desc</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">nulls_first</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</span><span id="Column.desc_nulls_last-218"><a href="#Column.desc_nulls_last-218"><span class="linenos">218</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3605,15 +3607,15 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.when"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.when-231"><a href="#Column.when-231"><span class="linenos">231</span></a> <span class="k">def</span> <span class="nf">when</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">:</span> <span class="n">Column</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.when-232"><a href="#Column.when-232"><span class="linenos">232</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">when</span>
</span><span id="Column.when-233"><a href="#Column.when-233"><span class="linenos">233</span></a>
</span><span id="Column.when-234"><a href="#Column.when-234"><span class="linenos">234</span></a> <span class="n">column_with_if</span> <span class="o">=</span> <span class="n">when</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column.when-235"><a href="#Column.when-235"><span class="linenos">235</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Case</span><span class="p">):</span>
</span><span id="Column.when-236"><a href="#Column.when-236"><span class="linenos">236</span></a> <span class="k">return</span> <span class="n">column_with_if</span>
</span><span id="Column.when-237"><a href="#Column.when-237"><span class="linenos">237</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column.when-238"><a href="#Column.when-238"><span class="linenos">238</span></a> <span class="n">new_column</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">&quot;ifs&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">column_with_if</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">&quot;ifs&quot;</span><span class="p">])</span>
</span><span id="Column.when-239"><a href="#Column.when-239"><span class="linenos">239</span></a> <span class="k">return</span> <span class="n">new_column</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.when-232"><a href="#Column.when-232"><span class="linenos">232</span></a> <span class="k">def</span> <span class="nf">when</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">:</span> <span class="n">Column</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.when-233"><a href="#Column.when-233"><span class="linenos">233</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">when</span>
</span><span id="Column.when-234"><a href="#Column.when-234"><span class="linenos">234</span></a>
</span><span id="Column.when-235"><a href="#Column.when-235"><span class="linenos">235</span></a> <span class="n">column_with_if</span> <span class="o">=</span> <span class="n">when</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span><span id="Column.when-236"><a href="#Column.when-236"><span class="linenos">236</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</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">Case</span><span class="p">):</span>
</span><span id="Column.when-237"><a href="#Column.when-237"><span class="linenos">237</span></a> <span class="k">return</span> <span class="n">column_with_if</span>
</span><span id="Column.when-238"><a href="#Column.when-238"><span class="linenos">238</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column.when-239"><a href="#Column.when-239"><span class="linenos">239</span></a> <span class="n">new_column</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">&quot;ifs&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">column_with_if</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">&quot;ifs&quot;</span><span class="p">])</span>
</span><span id="Column.when-240"><a href="#Column.when-240"><span class="linenos">240</span></a> <span class="k">return</span> <span class="n">new_column</span>
</span></pre></div>
@ -3631,13 +3633,13 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.otherwise"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.otherwise-241"><a href="#Column.otherwise-241"><span class="linenos">241</span></a> <span class="k">def</span> <span class="nf">otherwise</span><span class="p">(</span><span class="bp">self</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.otherwise-242"><a href="#Column.otherwise-242"><span class="linenos">242</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column.otherwise-243"><a href="#Column.otherwise-243"><span class="linenos">243</span></a>
</span><span id="Column.otherwise-244"><a href="#Column.otherwise-244"><span class="linenos">244</span></a> <span class="n">true_value</span> <span class="o">=</span> <span class="n">value</span> <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">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column.otherwise-245"><a href="#Column.otherwise-245"><span class="linenos">245</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column.otherwise-246"><a href="#Column.otherwise-246"><span class="linenos">246</span></a> <span class="n">new_column</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;default&quot;</span><span class="p">,</span> <span class="n">true_value</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column.otherwise-247"><a href="#Column.otherwise-247"><span class="linenos">247</span></a> <span class="k">return</span> <span class="n">new_column</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.otherwise-242"><a href="#Column.otherwise-242"><span class="linenos">242</span></a> <span class="k">def</span> <span class="nf">otherwise</span><span class="p">(</span><span class="bp">self</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">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.otherwise-243"><a href="#Column.otherwise-243"><span class="linenos">243</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.functions</span> <span class="kn">import</span> <span class="n">lit</span>
</span><span id="Column.otherwise-244"><a href="#Column.otherwise-244"><span class="linenos">244</span></a>
</span><span id="Column.otherwise-245"><a href="#Column.otherwise-245"><span class="linenos">245</span></a> <span class="n">true_value</span> <span class="o">=</span> <span class="n">value</span> <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">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
</span><span id="Column.otherwise-246"><a href="#Column.otherwise-246"><span class="linenos">246</span></a> <span class="n">new_column</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column.otherwise-247"><a href="#Column.otherwise-247"><span class="linenos">247</span></a> <span class="n">new_column</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;default&quot;</span><span class="p">,</span> <span class="n">true_value</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column.otherwise-248"><a href="#Column.otherwise-248"><span class="linenos">248</span></a> <span class="k">return</span> <span class="n">new_column</span>
</span></pre></div>
@ -3655,9 +3657,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.isNull"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.isNull-249"><a href="#Column.isNull-249"><span class="linenos">249</span></a> <span class="k">def</span> <span class="nf">isNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.isNull-250"><a href="#Column.isNull-250"><span class="linenos">250</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">())</span>
</span><span id="Column.isNull-251"><a href="#Column.isNull-251"><span class="linenos">251</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.isNull-250"><a href="#Column.isNull-250"><span class="linenos">250</span></a> <span class="k">def</span> <span class="nf">isNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.isNull-251"><a href="#Column.isNull-251"><span class="linenos">251</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">())</span>
</span><span id="Column.isNull-252"><a href="#Column.isNull-252"><span class="linenos">252</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3675,9 +3677,9 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.isNotNull"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.isNotNull-253"><a href="#Column.isNotNull-253"><span class="linenos">253</span></a> <span class="k">def</span> <span class="nf">isNotNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.isNotNull-254"><a href="#Column.isNotNull-254"><span class="linenos">254</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">()))</span>
</span><span id="Column.isNotNull-255"><a href="#Column.isNotNull-255"><span class="linenos">255</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.isNotNull-254"><a href="#Column.isNotNull-254"><span class="linenos">254</span></a> <span class="k">def</span> <span class="nf">isNotNull</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.isNotNull-255"><a href="#Column.isNotNull-255"><span class="linenos">255</span></a> <span class="n">new_expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">()))</span>
</span><span id="Column.isNotNull-256"><a href="#Column.isNotNull-256"><span class="linenos">256</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">new_expression</span><span class="p">)</span>
</span></pre></div>
@ -3695,14 +3697,14 @@ and check if it matches the type of the value provided. If not then make it null
</div>
<a class="headerlink" href="#Column.cast"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.cast-257"><a href="#Column.cast-257"><span class="linenos">257</span></a> <span class="k">def</span> <span class="nf">cast</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataType</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="nb">str</span><span class="p">,</span> <span class="n">DataType</span><span class="p">]):</span>
</span><span id="Column.cast-258"><a href="#Column.cast-258"><span class="linenos">258</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Column.cast-259"><a href="#Column.cast-259"><span class="linenos">259</span></a><span class="sd"> Functionality Difference: PySpark cast accepts a datatype instance of the datatype class</span>
</span><span id="Column.cast-260"><a href="#Column.cast-260"><span class="linenos">260</span></a><span class="sd"> Sqlglot doesn&#39;t currently replicate this class so it only accepts a string</span>
</span><span id="Column.cast-261"><a href="#Column.cast-261"><span class="linenos">261</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Column.cast-262"><a href="#Column.cast-262"><span class="linenos">262</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dataType</span><span class="p">,</span> <span class="n">DataType</span><span class="p">):</span>
</span><span id="Column.cast-263"><a href="#Column.cast-263"><span class="linenos">263</span></a> <span class="n">dataType</span> <span class="o">=</span> <span class="n">dataType</span><span class="o">.</span><span class="n">simpleString</span><span class="p">()</span>
</span><span id="Column.cast-264"><a href="#Column.cast-264"><span class="linenos">264</span></a> <span class="k">return</span> <span class="n">Column</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="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">dataType</span><span class="p">,</span> <span class="n">dialect</span><span class="o">=</span><span class="s2">&quot;spark&quot;</span><span class="p">))</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.cast-258"><a href="#Column.cast-258"><span class="linenos">258</span></a> <span class="k">def</span> <span class="nf">cast</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataType</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="nb">str</span><span class="p">,</span> <span class="n">DataType</span><span class="p">]):</span>
</span><span id="Column.cast-259"><a href="#Column.cast-259"><span class="linenos">259</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Column.cast-260"><a href="#Column.cast-260"><span class="linenos">260</span></a><span class="sd"> Functionality Difference: PySpark cast accepts a datatype instance of the datatype class</span>
</span><span id="Column.cast-261"><a href="#Column.cast-261"><span class="linenos">261</span></a><span class="sd"> Sqlglot doesn&#39;t currently replicate this class so it only accepts a string</span>
</span><span id="Column.cast-262"><a href="#Column.cast-262"><span class="linenos">262</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Column.cast-263"><a href="#Column.cast-263"><span class="linenos">263</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dataType</span><span class="p">,</span> <span class="n">DataType</span><span class="p">):</span>
</span><span id="Column.cast-264"><a href="#Column.cast-264"><span class="linenos">264</span></a> <span class="n">dataType</span> <span class="o">=</span> <span class="n">dataType</span><span class="o">.</span><span class="n">simpleString</span><span class="p">()</span>
</span><span id="Column.cast-265"><a href="#Column.cast-265"><span class="linenos">265</span></a> <span class="k">return</span> <span class="n">Column</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="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span> <span class="n">dataType</span><span class="p">,</span> <span class="n">dialect</span><span class="o">=</span><span class="s2">&quot;spark&quot;</span><span class="p">))</span>
</span></pre></div>
@ -3723,9 +3725,9 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
</div>
<a class="headerlink" href="#Column.startswith"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.startswith-266"><a href="#Column.startswith-266"><span class="linenos">266</span></a> <span class="k">def</span> <span class="nf">startswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.startswith-267"><a href="#Column.startswith-267"><span class="linenos">267</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column.startswith-268"><a href="#Column.startswith-268"><span class="linenos">268</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;STARTSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.startswith-267"><a href="#Column.startswith-267"><span class="linenos">267</span></a> <span class="k">def</span> <span class="nf">startswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.startswith-268"><a href="#Column.startswith-268"><span class="linenos">268</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column.startswith-269"><a href="#Column.startswith-269"><span class="linenos">269</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;STARTSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span></pre></div>
@ -3743,9 +3745,9 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
</div>
<a class="headerlink" href="#Column.endswith"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.endswith-270"><a href="#Column.endswith-270"><span class="linenos">270</span></a> <span class="k">def</span> <span class="nf">endswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.endswith-271"><a href="#Column.endswith-271"><span class="linenos">271</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column.endswith-272"><a href="#Column.endswith-272"><span class="linenos">272</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;ENDSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.endswith-271"><a href="#Column.endswith-271"><span class="linenos">271</span></a> <span class="k">def</span> <span class="nf">endswith</span><span class="p">(</span><span class="bp">self</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">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.endswith-272"><a href="#Column.endswith-272"><span class="linenos">272</span></a> <span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">value</span>
</span><span id="Column.endswith-273"><a href="#Column.endswith-273"><span class="linenos">273</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_anonymous_function</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;ENDSWITH&quot;</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
</span></pre></div>
@ -3763,10 +3765,10 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
</div>
<a class="headerlink" href="#Column.rlike"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.rlike-274"><a href="#Column.rlike-274"><span class="linenos">274</span></a> <span class="k">def</span> <span class="nf">rlike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regexp</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.rlike-275"><a href="#Column.rlike-275"><span class="linenos">275</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.rlike-276"><a href="#Column.rlike-276"><span class="linenos">276</span></a> <span class="n">column</span><span class="o">=</span><span class="bp">self</span><span class="p">,</span> <span class="n">callable_expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">regexp</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.rlike-277"><a href="#Column.rlike-277"><span class="linenos">277</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.rlike-275"><a href="#Column.rlike-275"><span class="linenos">275</span></a> <span class="k">def</span> <span class="nf">rlike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regexp</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.rlike-276"><a href="#Column.rlike-276"><span class="linenos">276</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.rlike-277"><a href="#Column.rlike-277"><span class="linenos">277</span></a> <span class="n">column</span><span class="o">=</span><span class="bp">self</span><span class="p">,</span> <span class="n">callable_expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">regexp</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.rlike-278"><a href="#Column.rlike-278"><span class="linenos">278</span></a> <span class="p">)</span>
</span></pre></div>
@ -3784,10 +3786,10 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
</div>
<a class="headerlink" href="#Column.like"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.like-279"><a href="#Column.like-279"><span class="linenos">279</span></a> <span class="k">def</span> <span class="nf">like</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column.like-280"><a href="#Column.like-280"><span class="linenos">280</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.like-281"><a href="#Column.like-281"><span class="linenos">281</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.like-282"><a href="#Column.like-282"><span class="linenos">282</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.like-280"><a href="#Column.like-280"><span class="linenos">280</span></a> <span class="k">def</span> <span class="nf">like</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column.like-281"><a href="#Column.like-281"><span class="linenos">281</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.like-282"><a href="#Column.like-282"><span class="linenos">282</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.like-283"><a href="#Column.like-283"><span class="linenos">283</span></a> <span class="p">)</span>
</span></pre></div>
@ -3805,10 +3807,10 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
</div>
<a class="headerlink" href="#Column.ilike"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.ilike-284"><a href="#Column.ilike-284"><span class="linenos">284</span></a> <span class="k">def</span> <span class="nf">ilike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column.ilike-285"><a href="#Column.ilike-285"><span class="linenos">285</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.ilike-286"><a href="#Column.ilike-286"><span class="linenos">286</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.ilike-287"><a href="#Column.ilike-287"><span class="linenos">287</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.ilike-285"><a href="#Column.ilike-285"><span class="linenos">285</span></a> <span class="k">def</span> <span class="nf">ilike</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span><span id="Column.ilike-286"><a href="#Column.ilike-286"><span class="linenos">286</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.ilike-287"><a href="#Column.ilike-287"><span class="linenos">287</span></a> <span class="bp">self</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="n">expression</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">other</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.ilike-288"><a href="#Column.ilike-288"><span class="linenos">288</span></a> <span class="p">)</span>
</span></pre></div>
@ -3826,12 +3828,12 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
</div>
<a class="headerlink" href="#Column.substr"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.substr-289"><a href="#Column.substr-289"><span class="linenos">289</span></a> <span class="k">def</span> <span class="nf">substr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">startPos</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">],</span> <span class="n">length</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.substr-290"><a href="#Column.substr-290"><span class="linenos">290</span></a> <span class="n">startPos</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">startPos</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">startPos</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">startPos</span>
</span><span id="Column.substr-291"><a href="#Column.substr-291"><span class="linenos">291</span></a> <span class="n">length</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">length</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">length</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">length</span>
</span><span id="Column.substr-292"><a href="#Column.substr-292"><span class="linenos">292</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.substr-293"><a href="#Column.substr-293"><span class="linenos">293</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Substring</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="n">startPos</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">length</span><span class="o">=</span><span class="n">length</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.substr-294"><a href="#Column.substr-294"><span class="linenos">294</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.substr-290"><a href="#Column.substr-290"><span class="linenos">290</span></a> <span class="k">def</span> <span class="nf">substr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">startPos</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">],</span> <span class="n">length</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="nb">int</span><span class="p">,</span> <span class="n">Column</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.substr-291"><a href="#Column.substr-291"><span class="linenos">291</span></a> <span class="n">startPos</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">startPos</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">startPos</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">startPos</span>
</span><span id="Column.substr-292"><a href="#Column.substr-292"><span class="linenos">292</span></a> <span class="n">length</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">length</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">length</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">length</span>
</span><span id="Column.substr-293"><a href="#Column.substr-293"><span class="linenos">293</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span>
</span><span id="Column.substr-294"><a href="#Column.substr-294"><span class="linenos">294</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Substring</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="n">startPos</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">length</span><span class="o">=</span><span class="n">length</span><span class="o">.</span><span class="n">expression</span>
</span><span id="Column.substr-295"><a href="#Column.substr-295"><span class="linenos">295</span></a> <span class="p">)</span>
</span></pre></div>
@ -3843,16 +3845,16 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="attr function">
<span class="def">def</span>
<span class="name">isin</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213009472&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">Iterable</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213009472&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">):</span></span>
<span class="name">isin</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438973072&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">Iterable</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438973072&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">):</span></span>
<label class="view-source-button" for="Column.isin-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Column.isin"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.isin-296"><a href="#Column.isin-296"><span class="linenos">296</span></a> <span class="k">def</span> <span class="nf">isin</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">cols</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">ColumnOrLiteral</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Iterable</span><span class="p">[</span><span class="n">ColumnOrLiteral</span><span class="p">]]):</span>
</span><span id="Column.isin-297"><a href="#Column.isin-297"><span class="linenos">297</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">cols</span><span class="p">)</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cols</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">set</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">))</span> <span class="k">else</span> <span class="n">cols</span> <span class="c1"># type: ignore</span>
</span><span id="Column.isin-298"><a href="#Column.isin-298"><span class="linenos">298</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">x</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">]</span>
</span><span id="Column.isin-299"><a href="#Column.isin-299"><span class="linenos">299</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span><span class="bp">self</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="n">expressions</span><span class="o">=</span><span class="n">expressions</span><span class="p">)</span> <span class="c1"># type: ignore</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.isin-297"><a href="#Column.isin-297"><span class="linenos">297</span></a> <span class="k">def</span> <span class="nf">isin</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">cols</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">ColumnOrLiteral</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Iterable</span><span class="p">[</span><span class="n">ColumnOrLiteral</span><span class="p">]]):</span>
</span><span id="Column.isin-298"><a href="#Column.isin-298"><span class="linenos">298</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">cols</span><span class="p">)</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cols</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">set</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">))</span> <span class="k">else</span> <span class="n">cols</span> <span class="c1"># type: ignore</span>
</span><span id="Column.isin-299"><a href="#Column.isin-299"><span class="linenos">299</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">x</span><span class="p">)</span><span class="o">.</span><span class="n">expression</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">]</span>
</span><span id="Column.isin-300"><a href="#Column.isin-300"><span class="linenos">300</span></a> <span class="k">return</span> <span class="n">Column</span><span class="o">.</span><span class="n">invoke_expression_over_column</span><span class="p">(</span><span class="bp">self</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="n">expressions</span><span class="o">=</span><span class="n">expressions</span><span class="p">)</span> <span class="c1"># type: ignore</span>
</span></pre></div>
@ -3864,30 +3866,30 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="attr function">
<span class="def">def</span>
<span class="name">between</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">lowerBound</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213096576&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">upperBound</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213134672&#39;</span><span class="o">&gt;</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<span class="name">between</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">lowerBound</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439030096&#39;</span><span class="o">&gt;</span>,</span><span class="param"> <span class="n">upperBound</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439074304&#39;</span><span class="o">&gt;</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<label class="view-source-button" for="Column.between-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Column.between"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.between-301"><a href="#Column.between-301"><span class="linenos">301</span></a> <span class="k">def</span> <span class="nf">between</span><span class="p">(</span>
</span><span id="Column.between-302"><a href="#Column.between-302"><span class="linenos">302</span></a> <span class="bp">self</span><span class="p">,</span>
</span><span id="Column.between-303"><a href="#Column.between-303"><span class="linenos">303</span></a> <span class="n">lowerBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column.between-304"><a href="#Column.between-304"><span class="linenos">304</span></a> <span class="n">upperBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column.between-305"><a href="#Column.between-305"><span class="linenos">305</span></a> <span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.between-306"><a href="#Column.between-306"><span class="linenos">306</span></a> <span class="n">lower_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column.between-307"><a href="#Column.between-307"><span class="linenos">307</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lowerBound</span>
</span><span id="Column.between-308"><a href="#Column.between-308"><span class="linenos">308</span></a> <span class="p">)</span>
</span><span id="Column.between-309"><a href="#Column.between-309"><span class="linenos">309</span></a> <span class="n">upper_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column.between-310"><a href="#Column.between-310"><span class="linenos">310</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">upperBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">upperBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">upperBound</span>
</span><span id="Column.between-311"><a href="#Column.between-311"><span class="linenos">311</span></a> <span class="p">)</span>
</span><span id="Column.between-312"><a href="#Column.between-312"><span class="linenos">312</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column.between-313"><a href="#Column.between-313"><span class="linenos">313</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">(</span>
</span><span id="Column.between-314"><a href="#Column.between-314"><span class="linenos">314</span></a> <span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span>
</span><span id="Column.between-315"><a href="#Column.between-315"><span class="linenos">315</span></a> <span class="n">low</span><span class="o">=</span><span class="n">lower_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column.between-316"><a href="#Column.between-316"><span class="linenos">316</span></a> <span class="n">high</span><span class="o">=</span><span class="n">upper_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column.between-317"><a href="#Column.between-317"><span class="linenos">317</span></a> <span class="p">)</span>
</span><span id="Column.between-318"><a href="#Column.between-318"><span class="linenos">318</span></a> <span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.between-302"><a href="#Column.between-302"><span class="linenos">302</span></a> <span class="k">def</span> <span class="nf">between</span><span class="p">(</span>
</span><span id="Column.between-303"><a href="#Column.between-303"><span class="linenos">303</span></a> <span class="bp">self</span><span class="p">,</span>
</span><span id="Column.between-304"><a href="#Column.between-304"><span class="linenos">304</span></a> <span class="n">lowerBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column.between-305"><a href="#Column.between-305"><span class="linenos">305</span></a> <span class="n">upperBound</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">ColumnOrLiteral</span><span class="p">],</span>
</span><span id="Column.between-306"><a href="#Column.between-306"><span class="linenos">306</span></a> <span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.between-307"><a href="#Column.between-307"><span class="linenos">307</span></a> <span class="n">lower_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column.between-308"><a href="#Column.between-308"><span class="linenos">308</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">lowerBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">lowerBound</span>
</span><span id="Column.between-309"><a href="#Column.between-309"><span class="linenos">309</span></a> <span class="p">)</span>
</span><span id="Column.between-310"><a href="#Column.between-310"><span class="linenos">310</span></a> <span class="n">upper_bound_exp</span> <span class="o">=</span> <span class="p">(</span>
</span><span id="Column.between-311"><a href="#Column.between-311"><span class="linenos">311</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_lit</span><span class="p">(</span><span class="n">upperBound</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">upperBound</span><span class="p">,</span> <span class="n">Column</span><span class="p">)</span> <span class="k">else</span> <span class="n">upperBound</span>
</span><span id="Column.between-312"><a href="#Column.between-312"><span class="linenos">312</span></a> <span class="p">)</span>
</span><span id="Column.between-313"><a href="#Column.between-313"><span class="linenos">313</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span>
</span><span id="Column.between-314"><a href="#Column.between-314"><span class="linenos">314</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">(</span>
</span><span id="Column.between-315"><a href="#Column.between-315"><span class="linenos">315</span></a> <span class="n">this</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">,</span>
</span><span id="Column.between-316"><a href="#Column.between-316"><span class="linenos">316</span></a> <span class="n">low</span><span class="o">=</span><span class="n">lower_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column.between-317"><a href="#Column.between-317"><span class="linenos">317</span></a> <span class="n">high</span><span class="o">=</span><span class="n">upper_bound_exp</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span>
</span><span id="Column.between-318"><a href="#Column.between-318"><span class="linenos">318</span></a> <span class="p">)</span>
</span><span id="Column.between-319"><a href="#Column.between-319"><span class="linenos">319</span></a> <span class="p">)</span>
</span></pre></div>
@ -3899,16 +3901,16 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="attr function">
<span class="def">def</span>
<span class="name">over</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">window</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213176000&#39;</span><span class="o">&gt;</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<span class="name">over</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">window</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439149984&#39;</span><span class="o">&gt;</span></span><span class="return-annotation">) -> <span class="n"><a href="#Column">sqlglot.dataframe.sql.Column</a></span>:</span></span>
<label class="view-source-button" for="Column.over-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Column.over"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.over-320"><a href="#Column.over-320"><span class="linenos">320</span></a> <span class="k">def</span> <span class="nf">over</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">window</span><span class="p">:</span> <span class="n">WindowSpec</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.over-321"><a href="#Column.over-321"><span class="linenos">321</span></a> <span class="n">window_expression</span> <span class="o">=</span> <span class="n">window</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column.over-322"><a href="#Column.over-322"><span class="linenos">322</span></a> <span class="n">window_expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column.over-323"><a href="#Column.over-323"><span class="linenos">323</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">window_expression</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="Column.over-321"><a href="#Column.over-321"><span class="linenos">321</span></a> <span class="k">def</span> <span class="nf">over</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">window</span><span class="p">:</span> <span class="n">WindowSpec</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Column</span><span class="p">:</span>
</span><span id="Column.over-322"><a href="#Column.over-322"><span class="linenos">322</span></a> <span class="n">window_expression</span> <span class="o">=</span> <span class="n">window</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="Column.over-323"><a href="#Column.over-323"><span class="linenos">323</span></a> <span class="n">window_expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">column_expression</span><span class="p">)</span>
</span><span id="Column.over-324"><a href="#Column.over-324"><span class="linenos">324</span></a> <span class="k">return</span> <span class="n">Column</span><span class="p">(</span><span class="n">window_expression</span><span class="p">)</span>
</span></pre></div>
@ -4109,7 +4111,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="decorator">@classmethod</div>
<span class="def">def</span>
<span class="name">partitionBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213424208&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213424208&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<span class="name">partitionBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439288784&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439288784&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<label class="view-source-button" for="Window.partitionBy-view-source"><span>View Source</span></label>
@ -4130,7 +4132,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="decorator">@classmethod</div>
<span class="def">def</span>
<span class="name">orderBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213347952&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213347952&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<span class="name">orderBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439363408&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483439363408&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<label class="view-source-button" for="Window.orderBy-view-source"><span>View Source</span></label>
@ -4355,7 +4357,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="attr function">
<span class="def">def</span>
<span class="name">partitionBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213251904&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725213251904&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<span class="name">partitionBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483437616032&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483437616032&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<label class="view-source-button" for="WindowSpec.partitionBy-view-source"><span>View Source</span></label>
@ -4382,7 +4384,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string</p>
<div class="attr function">
<span class="def">def</span>
<span class="name">orderBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212189360&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;139725212189360&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<span class="name">orderBy</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="o">*</span><span class="n">cols</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438173232&#39;</span><span class="o">&gt;</span><span class="p">,</span> <span class="n">List</span><span class="p">[</span><span class="o">&lt;</span><span class="n">MagicMock</span> <span class="nb">id</span><span class="o">=</span><span class="s1">&#39;140483438173232&#39;</span><span class="o">&gt;</span><span class="p">]]</span></span><span class="return-annotation">) -> <span class="n"><a href="#WindowSpec">sqlglot.dataframe.sql.WindowSpec</a></span>:</span></span>
<label class="view-source-button" for="WindowSpec.orderBy-view-source"><span>View Source</span></label>

1274
docs/sqlglot/dialects/bigquery.html
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585
docs/sqlglot/dialects/duckdb.html
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@ -155,102 +155,115 @@
</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">datatype_sql</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a>
</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a>
</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a><span class="k">class</span> <span class="nc">DuckDB</span><span class="p">(</span><span class="n">Dialect</span><span class="p">):</span>
</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span>
</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="n">KEYWORDS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="o">**</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="o">.</span><span class="n">KEYWORDS</span><span class="p">,</span>
</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="s2">&quot;:=&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="s2">&quot;ATTACH&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">COMMAND</span><span class="p">,</span>
</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="s2">&quot;CHARACTER VARYING&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">VARCHAR</span><span class="p">,</span>
</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="p">}</span>
</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a>
</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="k">class</span> <span class="nc">Parser</span><span class="p">(</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="p">):</span>
</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="n">FUNCTIONS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="o">**</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="o">.</span><span class="n">FUNCTIONS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="s2">&quot;APPROX_COUNT_DISTINCT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="s2">&quot;ARRAY_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="s2">&quot;ARRAY_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="s2">&quot;EPOCH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="s2">&quot;EPOCH_MS&quot;</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">args</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">(</span>
</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">(</span>
</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="n">this</span><span class="o">=</span><span class="n">seq_get</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="n">expression</span><span class="o">=</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="mi">1000</span><span class="p">),</span>
</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="p">)</span>
</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="p">),</span>
</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="s2">&quot;LIST_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> <span class="s2">&quot;LIST_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="s2">&quot;STRFTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a> <span class="s2">&quot;STRPTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="s2">&quot;STRING_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="s2">&quot;STRING_TO_ARRAY&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="s2">&quot;STRING_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="s2">&quot;STRUCT_PACK&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="s2">&quot;UNNEST&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="p">}</span>
</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a>
</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span>
</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="n">STRUCT_DELIMITER</span> <span class="o">=</span> <span class="p">(</span><span class="s2">&quot;(&quot;</span><span class="p">,</span> <span class="s2">&quot;)&quot;</span><span class="p">)</span>
</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a>
</span><span id="L-118"><a href="#L-118"><span class="linenos">118</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TRANSFORMS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="p">:</span> <span class="n">approx_count_distinct_sql</span><span class="p">,</span>
</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="s2">&quot;ARRAY&quot;</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seq_get</span><span class="p">(</span><span class="n">e</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="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="k">else</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">)(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">),</span>
</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">),</span>
</span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySort</span><span class="p">:</span> <span class="n">_array_sort_sql</span><span class="p">,</span>
</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySum</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_SUM&quot;</span><span class="p">),</span>
</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> <span class="n">_datatype_sql</span><span class="p">,</span>
</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">_date_add</span><span class="p">,</span>
</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateDiff</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="s2">&quot;DATE_DIFF&quot;</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">get</span><span class="p">(</span><span class="s2">&quot;unit&quot;</span><span class="p">)</span> <span class="ow">or</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="s2">&quot;day&quot;</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">e</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="p">),</span>
</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateStrToDate</span><span class="p">:</span> <span class="n">datestrtodate_sql</span><span class="p">,</span>
</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS INT)&quot;</span><span class="p">,</span>
</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DiToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRPTIME(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS DATE)&quot;</span><span class="p">,</span>
</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;UNNEST&quot;</span><span class="p">),</span>
</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LogicalOr</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;BOOL_OR&quot;</span><span class="p">),</span>
</span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Pivot</span><span class="p">:</span> <span class="n">no_pivot_sql</span><span class="p">,</span>
</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Properties</span><span class="p">:</span> <span class="n">no_properties_sql</span><span class="p">,</span>
</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">),</span>
</span><span id="L-144"><a href="#L-144"><span class="linenos">144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">),</span>
</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDivide</span><span class="p">:</span> <span class="n">no_safe_divide_sql</span><span class="p">,</span>
</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">),</span>
</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="p">:</span> <span class="n">_sort_array_sql</span><span class="p">,</span>
</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrPosition</span><span class="p">:</span> <span class="n">str_position_sql</span><span class="p">,</span>
</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="n">_str_to_time_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">:</span> <span class="n">_str_to_time_sql</span><span class="p">,</span>
</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(STRPTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">))&quot;</span><span class="p">,</span>
</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="p">:</span> <span class="n">_struct_sql</span><span class="p">,</span>
</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TableSample</span><span class="p">:</span> <span class="n">no_tablesample_sql</span><span class="p">,</span>
</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToTime</span><span class="p">:</span> <span class="n">timestrtotime_sql</span><span class="p">,</span>
</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TIMESTAMP))&quot;</span><span class="p">,</span>
</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;EPOCH&quot;</span><span class="p">),</span>
</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDiToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(SUBSTR(REPLACE(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), &#39;-&#39;, &#39;&#39;), 1, 8) AS INT)&quot;</span><span class="p">,</span>
</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsAdd</span><span class="p">:</span> <span class="n">_ts_or_ds_add</span><span class="p">,</span>
</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">:</span> <span class="n">_ts_or_ds_to_date_sql</span><span class="p">,</span>
</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="L-163"><a href="#L-163"><span class="linenos">163</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">),</span>
</span><span id="L-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTimeStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">) AS TEXT)&quot;</span><span class="p">,</span>
</span><span id="L-165"><a href="#L-165"><span class="linenos">165</span></a> <span class="p">}</span>
</span><span id="L-166"><a href="#L-166"><span class="linenos">166</span></a>
</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a> <span class="n">TYPE_MAPPING</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TYPE_MAPPING</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="L-169"><a href="#L-169"><span class="linenos">169</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">VARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="L-170"><a href="#L-170"><span class="linenos">170</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">NVARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a> <span class="p">}</span>
</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a><span class="k">def</span> <span class="nf">_regexp_extract_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">):</span>
</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="n">bad_args</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">filter</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="p">(</span><span class="s2">&quot;position&quot;</span><span class="p">,</span> <span class="s2">&quot;occurrence&quot;</span><span class="p">)))</span>
</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="k">if</span> <span class="n">bad_args</span><span class="p">:</span>
</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">unsupported</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;REGEXP_EXTRACT does not support arg(s) </span><span class="si">{</span><span class="n">bad_args</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="s2">&quot;REGEXP_EXTRACT&quot;</span><span class="p">,</span>
</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <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">&quot;this&quot;</span><span class="p">),</span>
</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <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">&quot;expression&quot;</span><span class="p">),</span>
</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <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">&quot;group&quot;</span><span class="p">),</span>
</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="p">)</span>
</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a>
</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a>
</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a><span class="k">class</span> <span class="nc">DuckDB</span><span class="p">(</span><span class="n">Dialect</span><span class="p">):</span>
</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span>
</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="n">KEYWORDS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="o">**</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="o">.</span><span class="n">KEYWORDS</span><span class="p">,</span>
</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="s2">&quot;:=&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="s2">&quot;ATTACH&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">COMMAND</span><span class="p">,</span>
</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="s2">&quot;CHARACTER VARYING&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">VARCHAR</span><span class="p">,</span>
</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="p">}</span>
</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a>
</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="k">class</span> <span class="nc">Parser</span><span class="p">(</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="p">):</span>
</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">FUNCTIONS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="o">**</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="o">.</span><span class="n">FUNCTIONS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> <span class="s2">&quot;APPROX_COUNT_DISTINCT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="s2">&quot;ARRAY_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="s2">&quot;ARRAY_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a> <span class="s2">&quot;EPOCH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="s2">&quot;EPOCH_MS&quot;</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">args</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">(</span>
</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">(</span>
</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="n">this</span><span class="o">=</span><span class="n">seq_get</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="n">expression</span><span class="o">=</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="mi">1000</span><span class="p">),</span>
</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="p">)</span>
</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="p">),</span>
</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="s2">&quot;LIST_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="s2">&quot;LIST_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="s2">&quot;STRFTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="s2">&quot;STRPTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-118"><a href="#L-118"><span class="linenos">118</span></a> <span class="s2">&quot;STRING_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a> <span class="s2">&quot;STRING_TO_ARRAY&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="s2">&quot;STRING_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> <span class="s2">&quot;STRUCT_PACK&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> <span class="s2">&quot;UNNEST&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> <span class="p">}</span>
</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a>
</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span>
</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a> <span class="n">STRUCT_DELIMITER</span> <span class="o">=</span> <span class="p">(</span><span class="s2">&quot;(&quot;</span><span class="p">,</span> <span class="s2">&quot;)&quot;</span><span class="p">)</span>
</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a>
</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TRANSFORMS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="p">:</span> <span class="n">approx_count_distinct_sql</span><span class="p">,</span>
</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="s2">&quot;ARRAY&quot;</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seq_get</span><span class="p">(</span><span class="n">e</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="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a> <span class="k">else</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">)(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">),</span>
</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">),</span>
</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySort</span><span class="p">:</span> <span class="n">_array_sort_sql</span><span class="p">,</span>
</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySum</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_SUM&quot;</span><span class="p">),</span>
</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> <span class="n">_datatype_sql</span><span class="p">,</span>
</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">_date_add</span><span class="p">,</span>
</span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateDiff</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a> <span class="s2">&quot;DATE_DIFF&quot;</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">get</span><span class="p">(</span><span class="s2">&quot;unit&quot;</span><span class="p">)</span> <span class="ow">or</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="s2">&quot;day&quot;</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">e</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a> <span class="p">),</span>
</span><span id="L-144"><a href="#L-144"><span class="linenos">144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateStrToDate</span><span class="p">:</span> <span class="n">datestrtodate_sql</span><span class="p">,</span>
</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS INT)&quot;</span><span class="p">,</span>
</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DiToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRPTIME(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS DATE)&quot;</span><span class="p">,</span>
</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;UNNEST&quot;</span><span class="p">),</span>
</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LogicalOr</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;BOOL_OR&quot;</span><span class="p">),</span>
</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Pivot</span><span class="p">:</span> <span class="n">no_pivot_sql</span><span class="p">,</span>
</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Properties</span><span class="p">:</span> <span class="n">no_properties_sql</span><span class="p">,</span>
</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpExtract</span><span class="p">:</span> <span class="n">_regexp_extract_sql</span><span class="p">,</span>
</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">),</span>
</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">),</span>
</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDivide</span><span class="p">:</span> <span class="n">no_safe_divide_sql</span><span class="p">,</span>
</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">),</span>
</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="p">:</span> <span class="n">_sort_array_sql</span><span class="p">,</span>
</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrPosition</span><span class="p">:</span> <span class="n">str_position_sql</span><span class="p">,</span>
</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="n">_str_to_time_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="L-163"><a href="#L-163"><span class="linenos">163</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">:</span> <span class="n">_str_to_time_sql</span><span class="p">,</span>
</span><span id="L-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(STRPTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">))&quot;</span><span class="p">,</span>
</span><span id="L-165"><a href="#L-165"><span class="linenos">165</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="p">:</span> <span class="n">_struct_sql</span><span class="p">,</span>
</span><span id="L-166"><a href="#L-166"><span class="linenos">166</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TableSample</span><span class="p">:</span> <span class="n">no_tablesample_sql</span><span class="p">,</span>
</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToTime</span><span class="p">:</span> <span class="n">timestrtotime_sql</span><span class="p">,</span>
</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TIMESTAMP))&quot;</span><span class="p">,</span>
</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;EPOCH&quot;</span><span class="p">),</span>
</span><span id="L-172"><a href="#L-172"><span class="linenos">172</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDiToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(SUBSTR(REPLACE(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), &#39;-&#39;, &#39;&#39;), 1, 8) AS INT)&quot;</span><span class="p">,</span>
</span><span id="L-173"><a href="#L-173"><span class="linenos">173</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsAdd</span><span class="p">:</span> <span class="n">_ts_or_ds_add</span><span class="p">,</span>
</span><span id="L-174"><a href="#L-174"><span class="linenos">174</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">:</span> <span class="n">_ts_or_ds_to_date_sql</span><span class="p">,</span>
</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">),</span>
</span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTimeStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">) AS TEXT)&quot;</span><span class="p">,</span>
</span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a> <span class="p">}</span>
</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a>
</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a> <span class="n">TYPE_MAPPING</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TYPE_MAPPING</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="L-182"><a href="#L-182"><span class="linenos">182</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">VARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="L-183"><a href="#L-183"><span class="linenos">183</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">NVARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="p">}</span>
</span></pre></div>
@ -266,102 +279,103 @@
</div>
<a class="headerlink" href="#DuckDB"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB-77"><a href="#DuckDB-77"><span class="linenos"> 77</span></a><span class="k">class</span> <span class="nc">DuckDB</span><span class="p">(</span><span class="n">Dialect</span><span class="p">):</span>
</span><span id="DuckDB-78"><a href="#DuckDB-78"><span class="linenos"> 78</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span>
</span><span id="DuckDB-79"><a href="#DuckDB-79"><span class="linenos"> 79</span></a> <span class="n">KEYWORDS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-80"><a href="#DuckDB-80"><span class="linenos"> 80</span></a> <span class="o">**</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="o">.</span><span class="n">KEYWORDS</span><span class="p">,</span>
</span><span id="DuckDB-81"><a href="#DuckDB-81"><span class="linenos"> 81</span></a> <span class="s2">&quot;:=&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
</span><span id="DuckDB-82"><a href="#DuckDB-82"><span class="linenos"> 82</span></a> <span class="s2">&quot;ATTACH&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">COMMAND</span><span class="p">,</span>
</span><span id="DuckDB-83"><a href="#DuckDB-83"><span class="linenos"> 83</span></a> <span class="s2">&quot;CHARACTER VARYING&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">VARCHAR</span><span class="p">,</span>
</span><span id="DuckDB-84"><a href="#DuckDB-84"><span class="linenos"> 84</span></a> <span class="p">}</span>
</span><span id="DuckDB-85"><a href="#DuckDB-85"><span class="linenos"> 85</span></a>
</span><span id="DuckDB-86"><a href="#DuckDB-86"><span class="linenos"> 86</span></a> <span class="k">class</span> <span class="nc">Parser</span><span class="p">(</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="p">):</span>
</span><span id="DuckDB-87"><a href="#DuckDB-87"><span class="linenos"> 87</span></a> <span class="n">FUNCTIONS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-88"><a href="#DuckDB-88"><span class="linenos"> 88</span></a> <span class="o">**</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="o">.</span><span class="n">FUNCTIONS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB-89"><a href="#DuckDB-89"><span class="linenos"> 89</span></a> <span class="s2">&quot;APPROX_COUNT_DISTINCT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-90"><a href="#DuckDB-90"><span class="linenos"> 90</span></a> <span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-91"><a href="#DuckDB-91"><span class="linenos"> 91</span></a> <span class="s2">&quot;ARRAY_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-92"><a href="#DuckDB-92"><span class="linenos"> 92</span></a> <span class="s2">&quot;ARRAY_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB-93"><a href="#DuckDB-93"><span class="linenos"> 93</span></a> <span class="s2">&quot;EPOCH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-94"><a href="#DuckDB-94"><span class="linenos"> 94</span></a> <span class="s2">&quot;EPOCH_MS&quot;</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">args</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">(</span>
</span><span id="DuckDB-95"><a href="#DuckDB-95"><span class="linenos"> 95</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">(</span>
</span><span id="DuckDB-96"><a href="#DuckDB-96"><span class="linenos"> 96</span></a> <span class="n">this</span><span class="o">=</span><span class="n">seq_get</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
</span><span id="DuckDB-97"><a href="#DuckDB-97"><span class="linenos"> 97</span></a> <span class="n">expression</span><span class="o">=</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="mi">1000</span><span class="p">),</span>
</span><span id="DuckDB-98"><a href="#DuckDB-98"><span class="linenos"> 98</span></a> <span class="p">)</span>
</span><span id="DuckDB-99"><a href="#DuckDB-99"><span class="linenos"> 99</span></a> <span class="p">),</span>
</span><span id="DuckDB-100"><a href="#DuckDB-100"><span class="linenos">100</span></a> <span class="s2">&quot;LIST_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-101"><a href="#DuckDB-101"><span class="linenos">101</span></a> <span class="s2">&quot;LIST_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB-102"><a href="#DuckDB-102"><span class="linenos">102</span></a> <span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-103"><a href="#DuckDB-103"><span class="linenos">103</span></a> <span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-104"><a href="#DuckDB-104"><span class="linenos">104</span></a> <span class="s2">&quot;STRFTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB-105"><a href="#DuckDB-105"><span class="linenos">105</span></a> <span class="s2">&quot;STRPTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB-106"><a href="#DuckDB-106"><span class="linenos">106</span></a> <span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-107"><a href="#DuckDB-107"><span class="linenos">107</span></a> <span class="s2">&quot;STRING_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-108"><a href="#DuckDB-108"><span class="linenos">108</span></a> <span class="s2">&quot;STRING_TO_ARRAY&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-109"><a href="#DuckDB-109"><span class="linenos">109</span></a> <span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-110"><a href="#DuckDB-110"><span class="linenos">110</span></a> <span class="s2">&quot;STRING_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-111"><a href="#DuckDB-111"><span class="linenos">111</span></a> <span class="s2">&quot;STRUCT_PACK&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-112"><a href="#DuckDB-112"><span class="linenos">112</span></a> <span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-113"><a href="#DuckDB-113"><span class="linenos">113</span></a> <span class="s2">&quot;UNNEST&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-114"><a href="#DuckDB-114"><span class="linenos">114</span></a> <span class="p">}</span>
</span><span id="DuckDB-115"><a href="#DuckDB-115"><span class="linenos">115</span></a>
</span><span id="DuckDB-116"><a href="#DuckDB-116"><span class="linenos">116</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span>
</span><span id="DuckDB-117"><a href="#DuckDB-117"><span class="linenos">117</span></a> <span class="n">STRUCT_DELIMITER</span> <span class="o">=</span> <span class="p">(</span><span class="s2">&quot;(&quot;</span><span class="p">,</span> <span class="s2">&quot;)&quot;</span><span class="p">)</span>
</span><span id="DuckDB-118"><a href="#DuckDB-118"><span class="linenos">118</span></a>
</span><span id="DuckDB-119"><a href="#DuckDB-119"><span class="linenos">119</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-120"><a href="#DuckDB-120"><span class="linenos">120</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TRANSFORMS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB-121"><a href="#DuckDB-121"><span class="linenos">121</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="p">:</span> <span class="n">approx_count_distinct_sql</span><span class="p">,</span>
</span><span id="DuckDB-122"><a href="#DuckDB-122"><span class="linenos">122</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="s2">&quot;ARRAY&quot;</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</span><span id="DuckDB-123"><a href="#DuckDB-123"><span class="linenos">123</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seq_get</span><span class="p">(</span><span class="n">e</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="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="DuckDB-124"><a href="#DuckDB-124"><span class="linenos">124</span></a> <span class="k">else</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">)(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">),</span>
</span><span id="DuckDB-125"><a href="#DuckDB-125"><span class="linenos">125</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">),</span>
</span><span id="DuckDB-126"><a href="#DuckDB-126"><span class="linenos">126</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySort</span><span class="p">:</span> <span class="n">_array_sort_sql</span><span class="p">,</span>
</span><span id="DuckDB-127"><a href="#DuckDB-127"><span class="linenos">127</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySum</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_SUM&quot;</span><span class="p">),</span>
</span><span id="DuckDB-128"><a href="#DuckDB-128"><span class="linenos">128</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> <span class="n">_datatype_sql</span><span class="p">,</span>
</span><span id="DuckDB-129"><a href="#DuckDB-129"><span class="linenos">129</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">_date_add</span><span class="p">,</span>
</span><span id="DuckDB-130"><a href="#DuckDB-130"><span class="linenos">130</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateDiff</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="DuckDB-131"><a href="#DuckDB-131"><span class="linenos">131</span></a> <span class="s2">&quot;DATE_DIFF&quot;</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">get</span><span class="p">(</span><span class="s2">&quot;unit&quot;</span><span class="p">)</span> <span class="ow">or</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="s2">&quot;day&quot;</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">e</span><span class="o">.</span><span class="n">this</span>
</span><span id="DuckDB-132"><a href="#DuckDB-132"><span class="linenos">132</span></a> <span class="p">),</span>
</span><span id="DuckDB-133"><a href="#DuckDB-133"><span class="linenos">133</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateStrToDate</span><span class="p">:</span> <span class="n">datestrtodate_sql</span><span class="p">,</span>
</span><span id="DuckDB-134"><a href="#DuckDB-134"><span class="linenos">134</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-135"><a href="#DuckDB-135"><span class="linenos">135</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DiToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRPTIME(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-136"><a href="#DuckDB-136"><span class="linenos">136</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;UNNEST&quot;</span><span class="p">),</span>
</span><span id="DuckDB-137"><a href="#DuckDB-137"><span class="linenos">137</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB-138"><a href="#DuckDB-138"><span class="linenos">138</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB-139"><a href="#DuckDB-139"><span class="linenos">139</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB-140"><a href="#DuckDB-140"><span class="linenos">140</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB-141"><a href="#DuckDB-141"><span class="linenos">141</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LogicalOr</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;BOOL_OR&quot;</span><span class="p">),</span>
</span><span id="DuckDB-142"><a href="#DuckDB-142"><span class="linenos">142</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Pivot</span><span class="p">:</span> <span class="n">no_pivot_sql</span><span class="p">,</span>
</span><span id="DuckDB-143"><a href="#DuckDB-143"><span class="linenos">143</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Properties</span><span class="p">:</span> <span class="n">no_properties_sql</span><span class="p">,</span>
</span><span id="DuckDB-144"><a href="#DuckDB-144"><span class="linenos">144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">),</span>
</span><span id="DuckDB-145"><a href="#DuckDB-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">),</span>
</span><span id="DuckDB-146"><a href="#DuckDB-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDivide</span><span class="p">:</span> <span class="n">no_safe_divide_sql</span><span class="p">,</span>
</span><span id="DuckDB-147"><a href="#DuckDB-147"><span class="linenos">147</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">),</span>
</span><span id="DuckDB-148"><a href="#DuckDB-148"><span class="linenos">148</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="p">:</span> <span class="n">_sort_array_sql</span><span class="p">,</span>
</span><span id="DuckDB-149"><a href="#DuckDB-149"><span class="linenos">149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrPosition</span><span class="p">:</span> <span class="n">str_position_sql</span><span class="p">,</span>
</span><span id="DuckDB-150"><a href="#DuckDB-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="n">_str_to_time_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-151"><a href="#DuckDB-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">:</span> <span class="n">_str_to_time_sql</span><span class="p">,</span>
</span><span id="DuckDB-152"><a href="#DuckDB-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(STRPTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">))&quot;</span><span class="p">,</span>
</span><span id="DuckDB-153"><a href="#DuckDB-153"><span class="linenos">153</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="p">:</span> <span class="n">_struct_sql</span><span class="p">,</span>
</span><span id="DuckDB-154"><a href="#DuckDB-154"><span class="linenos">154</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TableSample</span><span class="p">:</span> <span class="n">no_tablesample_sql</span><span class="p">,</span>
</span><span id="DuckDB-155"><a href="#DuckDB-155"><span class="linenos">155</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-156"><a href="#DuckDB-156"><span class="linenos">156</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToTime</span><span class="p">:</span> <span class="n">timestrtotime_sql</span><span class="p">,</span>
</span><span id="DuckDB-157"><a href="#DuckDB-157"><span class="linenos">157</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TIMESTAMP))&quot;</span><span class="p">,</span>
</span><span id="DuckDB-158"><a href="#DuckDB-158"><span class="linenos">158</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-159"><a href="#DuckDB-159"><span class="linenos">159</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;EPOCH&quot;</span><span class="p">),</span>
</span><span id="DuckDB-160"><a href="#DuckDB-160"><span class="linenos">160</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDiToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(SUBSTR(REPLACE(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), &#39;-&#39;, &#39;&#39;), 1, 8) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-161"><a href="#DuckDB-161"><span class="linenos">161</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsAdd</span><span class="p">:</span> <span class="n">_ts_or_ds_add</span><span class="p">,</span>
</span><span id="DuckDB-162"><a href="#DuckDB-162"><span class="linenos">162</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">:</span> <span class="n">_ts_or_ds_to_date_sql</span><span class="p">,</span>
</span><span id="DuckDB-163"><a href="#DuckDB-163"><span class="linenos">163</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-164"><a href="#DuckDB-164"><span class="linenos">164</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">),</span>
</span><span id="DuckDB-165"><a href="#DuckDB-165"><span class="linenos">165</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTimeStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">) AS TEXT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-166"><a href="#DuckDB-166"><span class="linenos">166</span></a> <span class="p">}</span>
</span><span id="DuckDB-167"><a href="#DuckDB-167"><span class="linenos">167</span></a>
</span><span id="DuckDB-168"><a href="#DuckDB-168"><span class="linenos">168</span></a> <span class="n">TYPE_MAPPING</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-169"><a href="#DuckDB-169"><span class="linenos">169</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TYPE_MAPPING</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB-170"><a href="#DuckDB-170"><span class="linenos">170</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">VARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB-171"><a href="#DuckDB-171"><span class="linenos">171</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">NVARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB-172"><a href="#DuckDB-172"><span class="linenos">172</span></a> <span class="p">}</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB-89"><a href="#DuckDB-89"><span class="linenos"> 89</span></a><span class="k">class</span> <span class="nc">DuckDB</span><span class="p">(</span><span class="n">Dialect</span><span class="p">):</span>
</span><span id="DuckDB-90"><a href="#DuckDB-90"><span class="linenos"> 90</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span>
</span><span id="DuckDB-91"><a href="#DuckDB-91"><span class="linenos"> 91</span></a> <span class="n">KEYWORDS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-92"><a href="#DuckDB-92"><span class="linenos"> 92</span></a> <span class="o">**</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="o">.</span><span class="n">KEYWORDS</span><span class="p">,</span>
</span><span id="DuckDB-93"><a href="#DuckDB-93"><span class="linenos"> 93</span></a> <span class="s2">&quot;:=&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
</span><span id="DuckDB-94"><a href="#DuckDB-94"><span class="linenos"> 94</span></a> <span class="s2">&quot;ATTACH&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">COMMAND</span><span class="p">,</span>
</span><span id="DuckDB-95"><a href="#DuckDB-95"><span class="linenos"> 95</span></a> <span class="s2">&quot;CHARACTER VARYING&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">VARCHAR</span><span class="p">,</span>
</span><span id="DuckDB-96"><a href="#DuckDB-96"><span class="linenos"> 96</span></a> <span class="p">}</span>
</span><span id="DuckDB-97"><a href="#DuckDB-97"><span class="linenos"> 97</span></a>
</span><span id="DuckDB-98"><a href="#DuckDB-98"><span class="linenos"> 98</span></a> <span class="k">class</span> <span class="nc">Parser</span><span class="p">(</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="p">):</span>
</span><span id="DuckDB-99"><a href="#DuckDB-99"><span class="linenos"> 99</span></a> <span class="n">FUNCTIONS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-100"><a href="#DuckDB-100"><span class="linenos">100</span></a> <span class="o">**</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="o">.</span><span class="n">FUNCTIONS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB-101"><a href="#DuckDB-101"><span class="linenos">101</span></a> <span class="s2">&quot;APPROX_COUNT_DISTINCT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-102"><a href="#DuckDB-102"><span class="linenos">102</span></a> <span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-103"><a href="#DuckDB-103"><span class="linenos">103</span></a> <span class="s2">&quot;ARRAY_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-104"><a href="#DuckDB-104"><span class="linenos">104</span></a> <span class="s2">&quot;ARRAY_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB-105"><a href="#DuckDB-105"><span class="linenos">105</span></a> <span class="s2">&quot;EPOCH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-106"><a href="#DuckDB-106"><span class="linenos">106</span></a> <span class="s2">&quot;EPOCH_MS&quot;</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">args</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">(</span>
</span><span id="DuckDB-107"><a href="#DuckDB-107"><span class="linenos">107</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">(</span>
</span><span id="DuckDB-108"><a href="#DuckDB-108"><span class="linenos">108</span></a> <span class="n">this</span><span class="o">=</span><span class="n">seq_get</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
</span><span id="DuckDB-109"><a href="#DuckDB-109"><span class="linenos">109</span></a> <span class="n">expression</span><span class="o">=</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="mi">1000</span><span class="p">),</span>
</span><span id="DuckDB-110"><a href="#DuckDB-110"><span class="linenos">110</span></a> <span class="p">)</span>
</span><span id="DuckDB-111"><a href="#DuckDB-111"><span class="linenos">111</span></a> <span class="p">),</span>
</span><span id="DuckDB-112"><a href="#DuckDB-112"><span class="linenos">112</span></a> <span class="s2">&quot;LIST_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-113"><a href="#DuckDB-113"><span class="linenos">113</span></a> <span class="s2">&quot;LIST_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB-114"><a href="#DuckDB-114"><span class="linenos">114</span></a> <span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-115"><a href="#DuckDB-115"><span class="linenos">115</span></a> <span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-116"><a href="#DuckDB-116"><span class="linenos">116</span></a> <span class="s2">&quot;STRFTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB-117"><a href="#DuckDB-117"><span class="linenos">117</span></a> <span class="s2">&quot;STRPTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB-118"><a href="#DuckDB-118"><span class="linenos">118</span></a> <span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-119"><a href="#DuckDB-119"><span class="linenos">119</span></a> <span class="s2">&quot;STRING_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-120"><a href="#DuckDB-120"><span class="linenos">120</span></a> <span class="s2">&quot;STRING_TO_ARRAY&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-121"><a href="#DuckDB-121"><span class="linenos">121</span></a> <span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-122"><a href="#DuckDB-122"><span class="linenos">122</span></a> <span class="s2">&quot;STRING_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-123"><a href="#DuckDB-123"><span class="linenos">123</span></a> <span class="s2">&quot;STRUCT_PACK&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-124"><a href="#DuckDB-124"><span class="linenos">124</span></a> <span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-125"><a href="#DuckDB-125"><span class="linenos">125</span></a> <span class="s2">&quot;UNNEST&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB-126"><a href="#DuckDB-126"><span class="linenos">126</span></a> <span class="p">}</span>
</span><span id="DuckDB-127"><a href="#DuckDB-127"><span class="linenos">127</span></a>
</span><span id="DuckDB-128"><a href="#DuckDB-128"><span class="linenos">128</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span>
</span><span id="DuckDB-129"><a href="#DuckDB-129"><span class="linenos">129</span></a> <span class="n">STRUCT_DELIMITER</span> <span class="o">=</span> <span class="p">(</span><span class="s2">&quot;(&quot;</span><span class="p">,</span> <span class="s2">&quot;)&quot;</span><span class="p">)</span>
</span><span id="DuckDB-130"><a href="#DuckDB-130"><span class="linenos">130</span></a>
</span><span id="DuckDB-131"><a href="#DuckDB-131"><span class="linenos">131</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-132"><a href="#DuckDB-132"><span class="linenos">132</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TRANSFORMS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB-133"><a href="#DuckDB-133"><span class="linenos">133</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="p">:</span> <span class="n">approx_count_distinct_sql</span><span class="p">,</span>
</span><span id="DuckDB-134"><a href="#DuckDB-134"><span class="linenos">134</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="s2">&quot;ARRAY&quot;</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</span><span id="DuckDB-135"><a href="#DuckDB-135"><span class="linenos">135</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seq_get</span><span class="p">(</span><span class="n">e</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="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="DuckDB-136"><a href="#DuckDB-136"><span class="linenos">136</span></a> <span class="k">else</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">)(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">),</span>
</span><span id="DuckDB-137"><a href="#DuckDB-137"><span class="linenos">137</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">),</span>
</span><span id="DuckDB-138"><a href="#DuckDB-138"><span class="linenos">138</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySort</span><span class="p">:</span> <span class="n">_array_sort_sql</span><span class="p">,</span>
</span><span id="DuckDB-139"><a href="#DuckDB-139"><span class="linenos">139</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySum</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_SUM&quot;</span><span class="p">),</span>
</span><span id="DuckDB-140"><a href="#DuckDB-140"><span class="linenos">140</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> <span class="n">_datatype_sql</span><span class="p">,</span>
</span><span id="DuckDB-141"><a href="#DuckDB-141"><span class="linenos">141</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">_date_add</span><span class="p">,</span>
</span><span id="DuckDB-142"><a href="#DuckDB-142"><span class="linenos">142</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateDiff</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="DuckDB-143"><a href="#DuckDB-143"><span class="linenos">143</span></a> <span class="s2">&quot;DATE_DIFF&quot;</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">get</span><span class="p">(</span><span class="s2">&quot;unit&quot;</span><span class="p">)</span> <span class="ow">or</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="s2">&quot;day&quot;</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">e</span><span class="o">.</span><span class="n">this</span>
</span><span id="DuckDB-144"><a href="#DuckDB-144"><span class="linenos">144</span></a> <span class="p">),</span>
</span><span id="DuckDB-145"><a href="#DuckDB-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateStrToDate</span><span class="p">:</span> <span class="n">datestrtodate_sql</span><span class="p">,</span>
</span><span id="DuckDB-146"><a href="#DuckDB-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-147"><a href="#DuckDB-147"><span class="linenos">147</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DiToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRPTIME(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-148"><a href="#DuckDB-148"><span class="linenos">148</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;UNNEST&quot;</span><span class="p">),</span>
</span><span id="DuckDB-149"><a href="#DuckDB-149"><span class="linenos">149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB-150"><a href="#DuckDB-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB-151"><a href="#DuckDB-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB-152"><a href="#DuckDB-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB-153"><a href="#DuckDB-153"><span class="linenos">153</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LogicalOr</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;BOOL_OR&quot;</span><span class="p">),</span>
</span><span id="DuckDB-154"><a href="#DuckDB-154"><span class="linenos">154</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Pivot</span><span class="p">:</span> <span class="n">no_pivot_sql</span><span class="p">,</span>
</span><span id="DuckDB-155"><a href="#DuckDB-155"><span class="linenos">155</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Properties</span><span class="p">:</span> <span class="n">no_properties_sql</span><span class="p">,</span>
</span><span id="DuckDB-156"><a href="#DuckDB-156"><span class="linenos">156</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpExtract</span><span class="p">:</span> <span class="n">_regexp_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB-157"><a href="#DuckDB-157"><span class="linenos">157</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">),</span>
</span><span id="DuckDB-158"><a href="#DuckDB-158"><span class="linenos">158</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">),</span>
</span><span id="DuckDB-159"><a href="#DuckDB-159"><span class="linenos">159</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDivide</span><span class="p">:</span> <span class="n">no_safe_divide_sql</span><span class="p">,</span>
</span><span id="DuckDB-160"><a href="#DuckDB-160"><span class="linenos">160</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">),</span>
</span><span id="DuckDB-161"><a href="#DuckDB-161"><span class="linenos">161</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="p">:</span> <span class="n">_sort_array_sql</span><span class="p">,</span>
</span><span id="DuckDB-162"><a href="#DuckDB-162"><span class="linenos">162</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrPosition</span><span class="p">:</span> <span class="n">str_position_sql</span><span class="p">,</span>
</span><span id="DuckDB-163"><a href="#DuckDB-163"><span class="linenos">163</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="n">_str_to_time_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-164"><a href="#DuckDB-164"><span class="linenos">164</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">:</span> <span class="n">_str_to_time_sql</span><span class="p">,</span>
</span><span id="DuckDB-165"><a href="#DuckDB-165"><span class="linenos">165</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(STRPTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">))&quot;</span><span class="p">,</span>
</span><span id="DuckDB-166"><a href="#DuckDB-166"><span class="linenos">166</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="p">:</span> <span class="n">_struct_sql</span><span class="p">,</span>
</span><span id="DuckDB-167"><a href="#DuckDB-167"><span class="linenos">167</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TableSample</span><span class="p">:</span> <span class="n">no_tablesample_sql</span><span class="p">,</span>
</span><span id="DuckDB-168"><a href="#DuckDB-168"><span class="linenos">168</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-169"><a href="#DuckDB-169"><span class="linenos">169</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToTime</span><span class="p">:</span> <span class="n">timestrtotime_sql</span><span class="p">,</span>
</span><span id="DuckDB-170"><a href="#DuckDB-170"><span class="linenos">170</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TIMESTAMP))&quot;</span><span class="p">,</span>
</span><span id="DuckDB-171"><a href="#DuckDB-171"><span class="linenos">171</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-172"><a href="#DuckDB-172"><span class="linenos">172</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;EPOCH&quot;</span><span class="p">),</span>
</span><span id="DuckDB-173"><a href="#DuckDB-173"><span class="linenos">173</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDiToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(SUBSTR(REPLACE(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), &#39;-&#39;, &#39;&#39;), 1, 8) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-174"><a href="#DuckDB-174"><span class="linenos">174</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsAdd</span><span class="p">:</span> <span class="n">_ts_or_ds_add</span><span class="p">,</span>
</span><span id="DuckDB-175"><a href="#DuckDB-175"><span class="linenos">175</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">:</span> <span class="n">_ts_or_ds_to_date_sql</span><span class="p">,</span>
</span><span id="DuckDB-176"><a href="#DuckDB-176"><span class="linenos">176</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-177"><a href="#DuckDB-177"><span class="linenos">177</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">),</span>
</span><span id="DuckDB-178"><a href="#DuckDB-178"><span class="linenos">178</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTimeStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">) AS TEXT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB-179"><a href="#DuckDB-179"><span class="linenos">179</span></a> <span class="p">}</span>
</span><span id="DuckDB-180"><a href="#DuckDB-180"><span class="linenos">180</span></a>
</span><span id="DuckDB-181"><a href="#DuckDB-181"><span class="linenos">181</span></a> <span class="n">TYPE_MAPPING</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB-182"><a href="#DuckDB-182"><span class="linenos">182</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TYPE_MAPPING</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB-183"><a href="#DuckDB-183"><span class="linenos">183</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">VARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB-184"><a href="#DuckDB-184"><span class="linenos">184</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">NVARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB-185"><a href="#DuckDB-185"><span class="linenos">185</span></a> <span class="p">}</span>
</span></pre></div>
@ -407,13 +421,13 @@
</div>
<a class="headerlink" href="#DuckDB.Tokenizer"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB.Tokenizer-78"><a href="#DuckDB.Tokenizer-78"><span class="linenos">78</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span>
</span><span id="DuckDB.Tokenizer-79"><a href="#DuckDB.Tokenizer-79"><span class="linenos">79</span></a> <span class="n">KEYWORDS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Tokenizer-80"><a href="#DuckDB.Tokenizer-80"><span class="linenos">80</span></a> <span class="o">**</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="o">.</span><span class="n">KEYWORDS</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-81"><a href="#DuckDB.Tokenizer-81"><span class="linenos">81</span></a> <span class="s2">&quot;:=&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-82"><a href="#DuckDB.Tokenizer-82"><span class="linenos">82</span></a> <span class="s2">&quot;ATTACH&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">COMMAND</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-83"><a href="#DuckDB.Tokenizer-83"><span class="linenos">83</span></a> <span class="s2">&quot;CHARACTER VARYING&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">VARCHAR</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-84"><a href="#DuckDB.Tokenizer-84"><span class="linenos">84</span></a> <span class="p">}</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB.Tokenizer-90"><a href="#DuckDB.Tokenizer-90"><span class="linenos">90</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span>
</span><span id="DuckDB.Tokenizer-91"><a href="#DuckDB.Tokenizer-91"><span class="linenos">91</span></a> <span class="n">KEYWORDS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Tokenizer-92"><a href="#DuckDB.Tokenizer-92"><span class="linenos">92</span></a> <span class="o">**</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="o">.</span><span class="n">KEYWORDS</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-93"><a href="#DuckDB.Tokenizer-93"><span class="linenos">93</span></a> <span class="s2">&quot;:=&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-94"><a href="#DuckDB.Tokenizer-94"><span class="linenos">94</span></a> <span class="s2">&quot;ATTACH&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">COMMAND</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-95"><a href="#DuckDB.Tokenizer-95"><span class="linenos">95</span></a> <span class="s2">&quot;CHARACTER VARYING&quot;</span><span class="p">:</span> <span class="n">TokenType</span><span class="o">.</span><span class="n">VARCHAR</span><span class="p">,</span>
</span><span id="DuckDB.Tokenizer-96"><a href="#DuckDB.Tokenizer-96"><span class="linenos">96</span></a> <span class="p">}</span>
</span></pre></div>
@ -442,35 +456,35 @@
</div>
<a class="headerlink" href="#DuckDB.Parser"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB.Parser-86"><a href="#DuckDB.Parser-86"><span class="linenos"> 86</span></a> <span class="k">class</span> <span class="nc">Parser</span><span class="p">(</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="p">):</span>
</span><span id="DuckDB.Parser-87"><a href="#DuckDB.Parser-87"><span class="linenos"> 87</span></a> <span class="n">FUNCTIONS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Parser-88"><a href="#DuckDB.Parser-88"><span class="linenos"> 88</span></a> <span class="o">**</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="o">.</span><span class="n">FUNCTIONS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB.Parser-89"><a href="#DuckDB.Parser-89"><span class="linenos"> 89</span></a> <span class="s2">&quot;APPROX_COUNT_DISTINCT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-90"><a href="#DuckDB.Parser-90"><span class="linenos"> 90</span></a> <span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-91"><a href="#DuckDB.Parser-91"><span class="linenos"> 91</span></a> <span class="s2">&quot;ARRAY_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-92"><a href="#DuckDB.Parser-92"><span class="linenos"> 92</span></a> <span class="s2">&quot;ARRAY_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB.Parser-93"><a href="#DuckDB.Parser-93"><span class="linenos"> 93</span></a> <span class="s2">&quot;EPOCH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-94"><a href="#DuckDB.Parser-94"><span class="linenos"> 94</span></a> <span class="s2">&quot;EPOCH_MS&quot;</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">args</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">(</span>
</span><span id="DuckDB.Parser-95"><a href="#DuckDB.Parser-95"><span class="linenos"> 95</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">(</span>
</span><span id="DuckDB.Parser-96"><a href="#DuckDB.Parser-96"><span class="linenos"> 96</span></a> <span class="n">this</span><span class="o">=</span><span class="n">seq_get</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
</span><span id="DuckDB.Parser-97"><a href="#DuckDB.Parser-97"><span class="linenos"> 97</span></a> <span class="n">expression</span><span class="o">=</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="mi">1000</span><span class="p">),</span>
</span><span id="DuckDB.Parser-98"><a href="#DuckDB.Parser-98"><span class="linenos"> 98</span></a> <span class="p">)</span>
</span><span id="DuckDB.Parser-99"><a href="#DuckDB.Parser-99"><span class="linenos"> 99</span></a> <span class="p">),</span>
</span><span id="DuckDB.Parser-100"><a href="#DuckDB.Parser-100"><span class="linenos">100</span></a> <span class="s2">&quot;LIST_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-101"><a href="#DuckDB.Parser-101"><span class="linenos">101</span></a> <span class="s2">&quot;LIST_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB.Parser-102"><a href="#DuckDB.Parser-102"><span class="linenos">102</span></a> <span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-103"><a href="#DuckDB.Parser-103"><span class="linenos">103</span></a> <span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-104"><a href="#DuckDB.Parser-104"><span class="linenos">104</span></a> <span class="s2">&quot;STRFTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Parser-105"><a href="#DuckDB.Parser-105"><span class="linenos">105</span></a> <span class="s2">&quot;STRPTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Parser-106"><a href="#DuckDB.Parser-106"><span class="linenos">106</span></a> <span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-107"><a href="#DuckDB.Parser-107"><span class="linenos">107</span></a> <span class="s2">&quot;STRING_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-108"><a href="#DuckDB.Parser-108"><span class="linenos">108</span></a> <span class="s2">&quot;STRING_TO_ARRAY&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-109"><a href="#DuckDB.Parser-109"><span class="linenos">109</span></a> <span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-110"><a href="#DuckDB.Parser-110"><span class="linenos">110</span></a> <span class="s2">&quot;STRING_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-111"><a href="#DuckDB.Parser-111"><span class="linenos">111</span></a> <span class="s2">&quot;STRUCT_PACK&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-112"><a href="#DuckDB.Parser-112"><span class="linenos">112</span></a> <span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-113"><a href="#DuckDB.Parser-113"><span class="linenos">113</span></a> <span class="s2">&quot;UNNEST&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-114"><a href="#DuckDB.Parser-114"><span class="linenos">114</span></a> <span class="p">}</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB.Parser-98"><a href="#DuckDB.Parser-98"><span class="linenos"> 98</span></a> <span class="k">class</span> <span class="nc">Parser</span><span class="p">(</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="p">):</span>
</span><span id="DuckDB.Parser-99"><a href="#DuckDB.Parser-99"><span class="linenos"> 99</span></a> <span class="n">FUNCTIONS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Parser-100"><a href="#DuckDB.Parser-100"><span class="linenos">100</span></a> <span class="o">**</span><span class="n">parser</span><span class="o">.</span><span class="n">Parser</span><span class="o">.</span><span class="n">FUNCTIONS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB.Parser-101"><a href="#DuckDB.Parser-101"><span class="linenos">101</span></a> <span class="s2">&quot;APPROX_COUNT_DISTINCT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-102"><a href="#DuckDB.Parser-102"><span class="linenos">102</span></a> <span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-103"><a href="#DuckDB.Parser-103"><span class="linenos">103</span></a> <span class="s2">&quot;ARRAY_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-104"><a href="#DuckDB.Parser-104"><span class="linenos">104</span></a> <span class="s2">&quot;ARRAY_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB.Parser-105"><a href="#DuckDB.Parser-105"><span class="linenos">105</span></a> <span class="s2">&quot;EPOCH&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-106"><a href="#DuckDB.Parser-106"><span class="linenos">106</span></a> <span class="s2">&quot;EPOCH_MS&quot;</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">args</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">(</span>
</span><span id="DuckDB.Parser-107"><a href="#DuckDB.Parser-107"><span class="linenos">107</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">(</span>
</span><span id="DuckDB.Parser-108"><a href="#DuckDB.Parser-108"><span class="linenos">108</span></a> <span class="n">this</span><span class="o">=</span><span class="n">seq_get</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
</span><span id="DuckDB.Parser-109"><a href="#DuckDB.Parser-109"><span class="linenos">109</span></a> <span class="n">expression</span><span class="o">=</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="mi">1000</span><span class="p">),</span>
</span><span id="DuckDB.Parser-110"><a href="#DuckDB.Parser-110"><span class="linenos">110</span></a> <span class="p">)</span>
</span><span id="DuckDB.Parser-111"><a href="#DuckDB.Parser-111"><span class="linenos">111</span></a> <span class="p">),</span>
</span><span id="DuckDB.Parser-112"><a href="#DuckDB.Parser-112"><span class="linenos">112</span></a> <span class="s2">&quot;LIST_SORT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-113"><a href="#DuckDB.Parser-113"><span class="linenos">113</span></a> <span class="s2">&quot;LIST_REVERSE_SORT&quot;</span><span class="p">:</span> <span class="n">_sort_array_reverse</span><span class="p">,</span>
</span><span id="DuckDB.Parser-114"><a href="#DuckDB.Parser-114"><span class="linenos">114</span></a> <span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-115"><a href="#DuckDB.Parser-115"><span class="linenos">115</span></a> <span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-116"><a href="#DuckDB.Parser-116"><span class="linenos">116</span></a> <span class="s2">&quot;STRFTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Parser-117"><a href="#DuckDB.Parser-117"><span class="linenos">117</span></a> <span class="s2">&quot;STRPTIME&quot;</span><span class="p">:</span> <span class="n">format_time_lambda</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">,</span> <span class="s2">&quot;duckdb&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Parser-118"><a href="#DuckDB.Parser-118"><span class="linenos">118</span></a> <span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-119"><a href="#DuckDB.Parser-119"><span class="linenos">119</span></a> <span class="s2">&quot;STRING_SPLIT&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-120"><a href="#DuckDB.Parser-120"><span class="linenos">120</span></a> <span class="s2">&quot;STRING_TO_ARRAY&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-121"><a href="#DuckDB.Parser-121"><span class="linenos">121</span></a> <span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-122"><a href="#DuckDB.Parser-122"><span class="linenos">122</span></a> <span class="s2">&quot;STRING_SPLIT_REGEX&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-123"><a href="#DuckDB.Parser-123"><span class="linenos">123</span></a> <span class="s2">&quot;STRUCT_PACK&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-124"><a href="#DuckDB.Parser-124"><span class="linenos">124</span></a> <span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-125"><a href="#DuckDB.Parser-125"><span class="linenos">125</span></a> <span class="s2">&quot;UNNEST&quot;</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="o">.</span><span class="n">from_arg_list</span><span class="p">,</span>
</span><span id="DuckDB.Parser-126"><a href="#DuckDB.Parser-126"><span class="linenos">126</span></a> <span class="p">}</span>
</span></pre></div>
@ -527,63 +541,64 @@ Default: "nulls_are_small"</li>
</div>
<a class="headerlink" href="#DuckDB.Generator"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB.Generator-116"><a href="#DuckDB.Generator-116"><span class="linenos">116</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span>
</span><span id="DuckDB.Generator-117"><a href="#DuckDB.Generator-117"><span class="linenos">117</span></a> <span class="n">STRUCT_DELIMITER</span> <span class="o">=</span> <span class="p">(</span><span class="s2">&quot;(&quot;</span><span class="p">,</span> <span class="s2">&quot;)&quot;</span><span class="p">)</span>
</span><span id="DuckDB.Generator-118"><a href="#DuckDB.Generator-118"><span class="linenos">118</span></a>
</span><span id="DuckDB.Generator-119"><a href="#DuckDB.Generator-119"><span class="linenos">119</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Generator-120"><a href="#DuckDB.Generator-120"><span class="linenos">120</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TRANSFORMS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB.Generator-121"><a href="#DuckDB.Generator-121"><span class="linenos">121</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="p">:</span> <span class="n">approx_count_distinct_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-122"><a href="#DuckDB.Generator-122"><span class="linenos">122</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="s2">&quot;ARRAY&quot;</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</span><span id="DuckDB.Generator-123"><a href="#DuckDB.Generator-123"><span class="linenos">123</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seq_get</span><span class="p">(</span><span class="n">e</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="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="DuckDB.Generator-124"><a href="#DuckDB.Generator-124"><span class="linenos">124</span></a> <span class="k">else</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">)(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">),</span>
</span><span id="DuckDB.Generator-125"><a href="#DuckDB.Generator-125"><span class="linenos">125</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-126"><a href="#DuckDB.Generator-126"><span class="linenos">126</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySort</span><span class="p">:</span> <span class="n">_array_sort_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-127"><a href="#DuckDB.Generator-127"><span class="linenos">127</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySum</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_SUM&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-128"><a href="#DuckDB.Generator-128"><span class="linenos">128</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> <span class="n">_datatype_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-129"><a href="#DuckDB.Generator-129"><span class="linenos">129</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">_date_add</span><span class="p">,</span>
</span><span id="DuckDB.Generator-130"><a href="#DuckDB.Generator-130"><span class="linenos">130</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateDiff</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="DuckDB.Generator-131"><a href="#DuckDB.Generator-131"><span class="linenos">131</span></a> <span class="s2">&quot;DATE_DIFF&quot;</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">get</span><span class="p">(</span><span class="s2">&quot;unit&quot;</span><span class="p">)</span> <span class="ow">or</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="s2">&quot;day&quot;</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">e</span><span class="o">.</span><span class="n">this</span>
</span><span id="DuckDB.Generator-132"><a href="#DuckDB.Generator-132"><span class="linenos">132</span></a> <span class="p">),</span>
</span><span id="DuckDB.Generator-133"><a href="#DuckDB.Generator-133"><span class="linenos">133</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateStrToDate</span><span class="p">:</span> <span class="n">datestrtodate_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-134"><a href="#DuckDB.Generator-134"><span class="linenos">134</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-135"><a href="#DuckDB.Generator-135"><span class="linenos">135</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DiToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRPTIME(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-136"><a href="#DuckDB.Generator-136"><span class="linenos">136</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;UNNEST&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-137"><a href="#DuckDB.Generator-137"><span class="linenos">137</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-138"><a href="#DuckDB.Generator-138"><span class="linenos">138</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-139"><a href="#DuckDB.Generator-139"><span class="linenos">139</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-140"><a href="#DuckDB.Generator-140"><span class="linenos">140</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-141"><a href="#DuckDB.Generator-141"><span class="linenos">141</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LogicalOr</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;BOOL_OR&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-142"><a href="#DuckDB.Generator-142"><span class="linenos">142</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Pivot</span><span class="p">:</span> <span class="n">no_pivot_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-143"><a href="#DuckDB.Generator-143"><span class="linenos">143</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Properties</span><span class="p">:</span> <span class="n">no_properties_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-144"><a href="#DuckDB.Generator-144"><span class="linenos">144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-145"><a href="#DuckDB.Generator-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-146"><a href="#DuckDB.Generator-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDivide</span><span class="p">:</span> <span class="n">no_safe_divide_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-147"><a href="#DuckDB.Generator-147"><span class="linenos">147</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-148"><a href="#DuckDB.Generator-148"><span class="linenos">148</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="p">:</span> <span class="n">_sort_array_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-149"><a href="#DuckDB.Generator-149"><span class="linenos">149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrPosition</span><span class="p">:</span> <span class="n">str_position_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-150"><a href="#DuckDB.Generator-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="n">_str_to_time_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-151"><a href="#DuckDB.Generator-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">:</span> <span class="n">_str_to_time_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-152"><a href="#DuckDB.Generator-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(STRPTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">))&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-153"><a href="#DuckDB.Generator-153"><span class="linenos">153</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="p">:</span> <span class="n">_struct_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-154"><a href="#DuckDB.Generator-154"><span class="linenos">154</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TableSample</span><span class="p">:</span> <span class="n">no_tablesample_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-155"><a href="#DuckDB.Generator-155"><span class="linenos">155</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-156"><a href="#DuckDB.Generator-156"><span class="linenos">156</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToTime</span><span class="p">:</span> <span class="n">timestrtotime_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-157"><a href="#DuckDB.Generator-157"><span class="linenos">157</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TIMESTAMP))&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-158"><a href="#DuckDB.Generator-158"><span class="linenos">158</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-159"><a href="#DuckDB.Generator-159"><span class="linenos">159</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;EPOCH&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-160"><a href="#DuckDB.Generator-160"><span class="linenos">160</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDiToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(SUBSTR(REPLACE(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), &#39;-&#39;, &#39;&#39;), 1, 8) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-161"><a href="#DuckDB.Generator-161"><span class="linenos">161</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsAdd</span><span class="p">:</span> <span class="n">_ts_or_ds_add</span><span class="p">,</span>
</span><span id="DuckDB.Generator-162"><a href="#DuckDB.Generator-162"><span class="linenos">162</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">:</span> <span class="n">_ts_or_ds_to_date_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-163"><a href="#DuckDB.Generator-163"><span class="linenos">163</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-164"><a href="#DuckDB.Generator-164"><span class="linenos">164</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-165"><a href="#DuckDB.Generator-165"><span class="linenos">165</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTimeStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">) AS TEXT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-166"><a href="#DuckDB.Generator-166"><span class="linenos">166</span></a> <span class="p">}</span>
</span><span id="DuckDB.Generator-167"><a href="#DuckDB.Generator-167"><span class="linenos">167</span></a>
</span><span id="DuckDB.Generator-168"><a href="#DuckDB.Generator-168"><span class="linenos">168</span></a> <span class="n">TYPE_MAPPING</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Generator-169"><a href="#DuckDB.Generator-169"><span class="linenos">169</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TYPE_MAPPING</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB.Generator-170"><a href="#DuckDB.Generator-170"><span class="linenos">170</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">VARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-171"><a href="#DuckDB.Generator-171"><span class="linenos">171</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">NVARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-172"><a href="#DuckDB.Generator-172"><span class="linenos">172</span></a> <span class="p">}</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="DuckDB.Generator-128"><a href="#DuckDB.Generator-128"><span class="linenos">128</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span>
</span><span id="DuckDB.Generator-129"><a href="#DuckDB.Generator-129"><span class="linenos">129</span></a> <span class="n">STRUCT_DELIMITER</span> <span class="o">=</span> <span class="p">(</span><span class="s2">&quot;(&quot;</span><span class="p">,</span> <span class="s2">&quot;)&quot;</span><span class="p">)</span>
</span><span id="DuckDB.Generator-130"><a href="#DuckDB.Generator-130"><span class="linenos">130</span></a>
</span><span id="DuckDB.Generator-131"><a href="#DuckDB.Generator-131"><span class="linenos">131</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Generator-132"><a href="#DuckDB.Generator-132"><span class="linenos">132</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TRANSFORMS</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB.Generator-133"><a href="#DuckDB.Generator-133"><span class="linenos">133</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ApproxDistinct</span><span class="p">:</span> <span class="n">approx_count_distinct_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-134"><a href="#DuckDB.Generator-134"><span class="linenos">134</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="s2">&quot;ARRAY&quot;</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</span><span id="DuckDB.Generator-135"><a href="#DuckDB.Generator-135"><span class="linenos">135</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">seq_get</span><span class="p">(</span><span class="n">e</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="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="DuckDB.Generator-136"><a href="#DuckDB.Generator-136"><span class="linenos">136</span></a> <span class="k">else</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_VALUE&quot;</span><span class="p">)(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">),</span>
</span><span id="DuckDB.Generator-137"><a href="#DuckDB.Generator-137"><span class="linenos">137</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySize</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;ARRAY_LENGTH&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-138"><a href="#DuckDB.Generator-138"><span class="linenos">138</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySort</span><span class="p">:</span> <span class="n">_array_sort_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-139"><a href="#DuckDB.Generator-139"><span class="linenos">139</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">ArraySum</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;LIST_SUM&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-140"><a href="#DuckDB.Generator-140"><span class="linenos">140</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> <span class="n">_datatype_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-141"><a href="#DuckDB.Generator-141"><span class="linenos">141</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">_date_add</span><span class="p">,</span>
</span><span id="DuckDB.Generator-142"><a href="#DuckDB.Generator-142"><span class="linenos">142</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateDiff</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">(</span>
</span><span id="DuckDB.Generator-143"><a href="#DuckDB.Generator-143"><span class="linenos">143</span></a> <span class="s2">&quot;DATE_DIFF&quot;</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">get</span><span class="p">(</span><span class="s2">&quot;unit&quot;</span><span class="p">)</span> <span class="ow">or</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="s2">&quot;day&quot;</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">e</span><span class="o">.</span><span class="n">this</span>
</span><span id="DuckDB.Generator-144"><a href="#DuckDB.Generator-144"><span class="linenos">144</span></a> <span class="p">),</span>
</span><span id="DuckDB.Generator-145"><a href="#DuckDB.Generator-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateStrToDate</span><span class="p">:</span> <span class="n">datestrtodate_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-146"><a href="#DuckDB.Generator-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-147"><a href="#DuckDB.Generator-147"><span class="linenos">147</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DiToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(STRPTIME(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), </span><span class="si">{</span><span class="n">DuckDB</span><span class="o">.</span><span class="n">dateint_format</span><span class="si">}</span><span class="s2">) AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-148"><a href="#DuckDB.Generator-148"><span class="linenos">148</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Explode</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;UNNEST&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-149"><a href="#DuckDB.Generator-149"><span class="linenos">149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-150"><a href="#DuckDB.Generator-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-151"><a href="#DuckDB.Generator-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtract</span><span class="p">:</span> <span class="n">arrow_json_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-152"><a href="#DuckDB.Generator-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">JSONBExtractScalar</span><span class="p">:</span> <span class="n">arrow_json_extract_scalar_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-153"><a href="#DuckDB.Generator-153"><span class="linenos">153</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LogicalOr</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;BOOL_OR&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-154"><a href="#DuckDB.Generator-154"><span class="linenos">154</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Pivot</span><span class="p">:</span> <span class="n">no_pivot_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-155"><a href="#DuckDB.Generator-155"><span class="linenos">155</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Properties</span><span class="p">:</span> <span class="n">no_properties_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-156"><a href="#DuckDB.Generator-156"><span class="linenos">156</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpExtract</span><span class="p">:</span> <span class="n">_regexp_extract_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-157"><a href="#DuckDB.Generator-157"><span class="linenos">157</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpLike</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;REGEXP_MATCHES&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-158"><a href="#DuckDB.Generator-158"><span class="linenos">158</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">RegexpSplit</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT_REGEX&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-159"><a href="#DuckDB.Generator-159"><span class="linenos">159</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDivide</span><span class="p">:</span> <span class="n">no_safe_divide_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-160"><a href="#DuckDB.Generator-160"><span class="linenos">160</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Split</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;STR_SPLIT&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-161"><a href="#DuckDB.Generator-161"><span class="linenos">161</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">SortArray</span><span class="p">:</span> <span class="n">_sort_array_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-162"><a href="#DuckDB.Generator-162"><span class="linenos">162</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrPosition</span><span class="p">:</span> <span class="n">str_position_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-163"><a href="#DuckDB.Generator-163"><span class="linenos">163</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="n">_str_to_time_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-164"><a href="#DuckDB.Generator-164"><span class="linenos">164</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToTime</span><span class="p">:</span> <span class="n">_str_to_time_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-165"><a href="#DuckDB.Generator-165"><span class="linenos">165</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">StrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(STRPTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">))&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-166"><a href="#DuckDB.Generator-166"><span class="linenos">166</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Struct</span><span class="p">:</span> <span class="n">_struct_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-167"><a href="#DuckDB.Generator-167"><span class="linenos">167</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TableSample</span><span class="p">:</span> <span class="n">no_tablesample_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-168"><a href="#DuckDB.Generator-168"><span class="linenos">168</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToDate</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS DATE)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-169"><a href="#DuckDB.Generator-169"><span class="linenos">169</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToTime</span><span class="p">:</span> <span class="n">timestrtotime_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-170"><a href="#DuckDB.Generator-170"><span class="linenos">170</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeStrToUnix</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;EPOCH(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TIMESTAMP))&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-171"><a href="#DuckDB.Generator-171"><span class="linenos">171</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-172"><a href="#DuckDB.Generator-172"><span class="linenos">172</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TimeToUnix</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;EPOCH&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-173"><a href="#DuckDB.Generator-173"><span class="linenos">173</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDiToDi</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(SUBSTR(REPLACE(CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> AS TEXT), &#39;-&#39;, &#39;&#39;), 1, 8) AS INT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-174"><a href="#DuckDB.Generator-174"><span class="linenos">174</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsAdd</span><span class="p">:</span> <span class="n">_ts_or_ds_add</span><span class="p">,</span>
</span><span id="DuckDB.Generator-175"><a href="#DuckDB.Generator-175"><span class="linenos">175</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">:</span> <span class="n">_ts_or_ds_to_date_sql</span><span class="p">,</span>
</span><span id="DuckDB.Generator-176"><a href="#DuckDB.Generator-176"><span class="linenos">176</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;STRFTIME(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_time</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-177"><a href="#DuckDB.Generator-177"><span class="linenos">177</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTime</span><span class="p">:</span> <span class="n">rename_func</span><span class="p">(</span><span class="s2">&quot;TO_TIMESTAMP&quot;</span><span class="p">),</span>
</span><span id="DuckDB.Generator-178"><a href="#DuckDB.Generator-178"><span class="linenos">178</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">UnixToTimeStr</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">&quot;CAST(TO_TIMESTAMP(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;this&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2">) AS TEXT)&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-179"><a href="#DuckDB.Generator-179"><span class="linenos">179</span></a> <span class="p">}</span>
</span><span id="DuckDB.Generator-180"><a href="#DuckDB.Generator-180"><span class="linenos">180</span></a>
</span><span id="DuckDB.Generator-181"><a href="#DuckDB.Generator-181"><span class="linenos">181</span></a> <span class="n">TYPE_MAPPING</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="DuckDB.Generator-182"><a href="#DuckDB.Generator-182"><span class="linenos">182</span></a> <span class="o">**</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="o">.</span><span class="n">TYPE_MAPPING</span><span class="p">,</span> <span class="c1"># type: ignore</span>
</span><span id="DuckDB.Generator-183"><a href="#DuckDB.Generator-183"><span class="linenos">183</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">VARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-184"><a href="#DuckDB.Generator-184"><span class="linenos">184</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">NVARCHAR</span><span class="p">:</span> <span class="s2">&quot;TEXT&quot;</span><span class="p">,</span>
</span><span id="DuckDB.Generator-185"><a href="#DuckDB.Generator-185"><span class="linenos">185</span></a> <span class="p">}</span>
</span></pre></div>

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docs/sqlglot/lineage.html
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@ -413,7 +413,7 @@
<div class="attr function">
<span class="def">def</span>
<span class="name">lineage</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">column</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="n"><a href="expressions.html#Column">sqlglot.expressions.Column</a></span>,</span><span class="param"> <span class="n">sql</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="n"><a href="expressions.html#Expression">sqlglot.expressions.Expression</a></span>,</span><span class="param"> <span class="n">schema</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">,</span> <span class="n"><a href="schema.html#Schema">sqlglot.schema.Schema</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">sources</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span> <span class="o">|</span> <span class="n"><a href="expressions.html#Subqueryable">sqlglot.expressions.Subqueryable</a></span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">rules</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">Callable</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="o">&lt;</span><span class="n">function</span> <span class="n">qualify_tables</span> <span class="n">at</span> <span class="mh">0x7f14510fd510</span><span class="o">&gt;</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">function</span> <span class="n">qualify_columns</span> <span class="n">at</span> <span class="mh">0x7f14510fcb80</span><span class="o">&gt;</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">function</span> <span class="n">expand_laterals</span> <span class="n">at</span> <span class="mh">0x7f145108f0a0</span><span class="o">&gt;</span><span class="p">)</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/dialect.html#Dialect">sqlglot.dialects.dialect.Dialect</a></span><span class="p">,</span> <span class="n">Type</span><span class="p">[</span><span class="n"><a href="dialects/dialect.html#Dialect">sqlglot.dialects.dialect.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="return-annotation">) -> <span class="n"><a href="#Node">sqlglot.lineage.Node</a></span>:</span></span>
<span class="name">lineage</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">column</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="n"><a href="expressions.html#Column">sqlglot.expressions.Column</a></span>,</span><span class="param"> <span class="n">sql</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="n"><a href="expressions.html#Expression">sqlglot.expressions.Expression</a></span>,</span><span class="param"> <span class="n">schema</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">,</span> <span class="n"><a href="schema.html#Schema">sqlglot.schema.Schema</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">sources</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span> <span class="o">|</span> <span class="n"><a href="expressions.html#Subqueryable">sqlglot.expressions.Subqueryable</a></span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">rules</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">Callable</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="o">&lt;</span><span class="n">function</span> <span class="n">qualify_tables</span> <span class="n">at</span> <span class="mh">0x7fc4dac09fc0</span><span class="o">&gt;</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">function</span> <span class="n">qualify_columns</span> <span class="n">at</span> <span class="mh">0x7fc4dac09000</span><span class="o">&gt;</span><span class="p">,</span> <span class="o">&lt;</span><span class="n">function</span> <span class="n">expand_laterals</span> <span class="n">at</span> <span class="mh">0x7fc4dac37760</span><span class="o">&gt;</span><span class="p">)</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/dialect.html#Dialect">sqlglot.dialects.dialect.Dialect</a></span><span class="p">,</span> <span class="n">Type</span><span class="p">[</span><span class="n"><a href="dialects/dialect.html#Dialect">sqlglot.dialects.dialect.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="return-annotation">) -> <span class="n"><a href="#Node">sqlglot.lineage.Node</a></span>:</span></span>
<label class="view-source-button" for="lineage-view-source"><span>View Source</span></label>

6
docs/sqlglot/optimizer/optimizer.html
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@ -62,113 +62,119 @@
<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="nn">collections</span> <span class="kn">import</span> <span class="n">defaultdict</span>
</span><span id="L-2"><a href="#L-2"><span class="linenos"> 2</span></a>
</span><span id="L-3"><a href="#L-3"><span class="linenos"> 3</span></a><span class="kn">from</span> <span class="nn">sqlglot</span> <span class="kn">import</span> <span class="n">alias</span><span class="p">,</span> <span class="n">exp</span>
</span><span id="L-4"><a href="#L-4"><span class="linenos"> 4</span></a><span class="kn">from</span> <span class="nn">sqlglot.optimizer.scope</span> <span class="kn">import</span> <span class="n">Scope</span><span class="p">,</span> <span class="n">traverse_scope</span>
</span><span id="L-5"><a href="#L-5"><span class="linenos"> 5</span></a>
</span><span id="L-6"><a href="#L-6"><span class="linenos"> 6</span></a><span class="c1"># Sentinel value that means an outer query selecting ALL columns</span>
</span><span id="L-7"><a href="#L-7"><span class="linenos"> 7</span></a><span class="n">SELECT_ALL</span> <span class="o">=</span> <span class="nb">object</span><span class="p">()</span>
</span><span id="L-4"><a href="#L-4"><span class="linenos"> 4</span></a><span class="kn">from</span> <span class="nn">sqlglot.helper</span> <span class="kn">import</span> <span class="n">flatten</span>
</span><span id="L-5"><a href="#L-5"><span class="linenos"> 5</span></a><span class="kn">from</span> <span class="nn">sqlglot.optimizer.qualify_columns</span> <span class="kn">import</span> <span class="n">Resolver</span>
</span><span id="L-6"><a href="#L-6"><span class="linenos"> 6</span></a><span class="kn">from</span> <span class="nn">sqlglot.optimizer.scope</span> <span class="kn">import</span> <span class="n">Scope</span><span class="p">,</span> <span class="n">traverse_scope</span>
</span><span id="L-7"><a href="#L-7"><span class="linenos"> 7</span></a><span class="kn">from</span> <span class="nn">sqlglot.schema</span> <span class="kn">import</span> <span class="n">ensure_schema</span>
</span><span id="L-8"><a href="#L-8"><span class="linenos"> 8</span></a>
</span><span id="L-9"><a href="#L-9"><span class="linenos"> 9</span></a><span class="c1"># Selection to use if selection list is empty</span>
</span><span id="L-10"><a href="#L-10"><span class="linenos"> 10</span></a><span class="n">DEFAULT_SELECTION</span> <span class="o">=</span> <span class="k">lambda</span><span class="p">:</span> <span class="n">alias</span><span class="p">(</span><span class="s2">&quot;1&quot;</span><span class="p">,</span> <span class="s2">&quot;_&quot;</span><span class="p">)</span>
</span><span id="L-9"><a href="#L-9"><span class="linenos"> 9</span></a><span class="c1"># Sentinel value that means an outer query selecting ALL columns</span>
</span><span id="L-10"><a href="#L-10"><span class="linenos"> 10</span></a><span class="n">SELECT_ALL</span> <span class="o">=</span> <span class="nb">object</span><span class="p">()</span>
</span><span id="L-11"><a href="#L-11"><span class="linenos"> 11</span></a>
</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a>
</span><span id="L-13"><a href="#L-13"><span class="linenos"> 13</span></a><span class="k">def</span> <span class="nf">pushdown_projections</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
</span><span id="L-14"><a href="#L-14"><span class="linenos"> 14</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-15"><a href="#L-15"><span class="linenos"> 15</span></a><span class="sd"> Rewrite sqlglot AST to remove unused columns projections.</span>
</span><span id="L-16"><a href="#L-16"><span class="linenos"> 16</span></a>
</span><span id="L-17"><a href="#L-17"><span class="linenos"> 17</span></a><span class="sd"> Example:</span>
</span><span id="L-18"><a href="#L-18"><span class="linenos"> 18</span></a><span class="sd"> &gt;&gt;&gt; import sqlglot</span>
</span><span id="L-19"><a href="#L-19"><span class="linenos"> 19</span></a><span class="sd"> &gt;&gt;&gt; sql = &quot;SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y&quot;</span>
</span><span id="L-20"><a href="#L-20"><span class="linenos"> 20</span></a><span class="sd"> &gt;&gt;&gt; expression = sqlglot.parse_one(sql)</span>
</span><span id="L-21"><a href="#L-21"><span class="linenos"> 21</span></a><span class="sd"> &gt;&gt;&gt; pushdown_projections(expression).sql()</span>
</span><span id="L-22"><a href="#L-22"><span class="linenos"> 22</span></a><span class="sd"> &#39;SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y&#39;</span>
</span><span id="L-23"><a href="#L-23"><span class="linenos"> 23</span></a>
</span><span id="L-24"><a href="#L-24"><span class="linenos"> 24</span></a><span class="sd"> Args:</span>
</span><span id="L-25"><a href="#L-25"><span class="linenos"> 25</span></a><span class="sd"> expression (sqlglot.Expression): expression to optimize</span>
</span><span id="L-26"><a href="#L-26"><span class="linenos"> 26</span></a><span class="sd"> Returns:</span>
</span><span id="L-27"><a href="#L-27"><span class="linenos"> 27</span></a><span class="sd"> sqlglot.Expression: optimized expression</span>
</span><span id="L-28"><a href="#L-28"><span class="linenos"> 28</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-29"><a href="#L-29"><span class="linenos"> 29</span></a> <span class="c1"># Map of Scope to all columns being selected by outer queries.</span>
</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a> <span class="n">referenced_columns</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="L-31"><a href="#L-31"><span class="linenos"> 31</span></a> <span class="n">left_union</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a> <span class="n">right_union</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a> <span class="c1"># We build the scope tree (which is traversed in DFS postorder), then iterate</span>
</span><span id="L-34"><a href="#L-34"><span class="linenos"> 34</span></a> <span class="c1"># over the result in reverse order. This should ensure that the set of selected</span>
</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a> <span class="c1"># columns for a particular scope are completely build by the time we get to it.</span>
</span><span id="L-36"><a href="#L-36"><span class="linenos"> 36</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">)):</span>
</span><span id="L-37"><a href="#L-37"><span class="linenos"> 37</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="n">referenced_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">})</span>
</span><span id="L-38"><a href="#L-38"><span class="linenos"> 38</span></a>
</span><span id="L-39"><a href="#L-39"><span class="linenos"> 39</span></a> <span class="k">if</span> <span class="n">scope</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">&quot;distinct&quot;</span><span class="p">):</span>
</span><span id="L-40"><a href="#L-40"><span class="linenos"> 40</span></a> <span class="c1"># We can&#39;t remove columns SELECT DISTINCT nor UNION DISTINCT</span>
</span><span id="L-41"><a href="#L-41"><span class="linenos"> 41</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">}</span>
</span><span id="L-42"><a href="#L-42"><span class="linenos"> 42</span></a>
</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Union</span><span class="p">):</span>
</span><span id="L-44"><a href="#L-44"><span class="linenos"> 44</span></a> <span class="n">left_union</span><span class="p">,</span> <span class="n">right_union</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">union_scopes</span>
</span><span id="L-45"><a href="#L-45"><span class="linenos"> 45</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">left_union</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="L-46"><a href="#L-46"><span class="linenos"> 46</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">right_union</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="L-47"><a href="#L-47"><span class="linenos"> 47</span></a>
</span><span id="L-48"><a href="#L-48"><span class="linenos"> 48</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="n">scope</span> <span class="o">!=</span> <span class="n">right_union</span><span class="p">:</span>
</span><span id="L-49"><a href="#L-49"><span class="linenos"> 49</span></a> <span class="n">removed_indexes</span> <span class="o">=</span> <span class="n">_remove_unused_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">parent_selections</span><span class="p">)</span>
</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a> <span class="c1"># The left union is used for column names to select and if we remove columns from the left</span>
</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a> <span class="c1"># we need to also remove those same columns in the right that were at the same position</span>
</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a> <span class="k">if</span> <span class="n">scope</span> <span class="ow">is</span> <span class="n">left_union</span><span class="p">:</span>
</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a> <span class="n">_remove_indexed_selections</span><span class="p">(</span><span class="n">right_union</span><span class="p">,</span> <span class="n">removed_indexes</span><span class="p">)</span>
</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a>
</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a> <span class="c1"># Group columns by source name</span>
</span><span id="L-56"><a href="#L-56"><span class="linenos"> 56</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a> <span class="n">col_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">name</span>
</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a> <span class="n">selects</span><span class="p">[</span><span class="n">table_name</span><span class="p">]</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">col_name</span><span class="p">)</span>
</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a><span class="c1"># Selection to use if selection list is empty</span>
</span><span id="L-13"><a href="#L-13"><span class="linenos"> 13</span></a><span class="n">DEFAULT_SELECTION</span> <span class="o">=</span> <span class="k">lambda</span><span class="p">:</span> <span class="n">alias</span><span class="p">(</span><span class="s2">&quot;1&quot;</span><span class="p">,</span> <span class="s2">&quot;_&quot;</span><span class="p">)</span>
</span><span id="L-14"><a href="#L-14"><span class="linenos"> 14</span></a>
</span><span id="L-15"><a href="#L-15"><span class="linenos"> 15</span></a>
</span><span id="L-16"><a href="#L-16"><span class="linenos"> 16</span></a><span class="k">def</span> <span class="nf">pushdown_projections</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">schema</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
</span><span id="L-17"><a href="#L-17"><span class="linenos"> 17</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-18"><a href="#L-18"><span class="linenos"> 18</span></a><span class="sd"> Rewrite sqlglot AST to remove unused columns projections.</span>
</span><span id="L-19"><a href="#L-19"><span class="linenos"> 19</span></a>
</span><span id="L-20"><a href="#L-20"><span class="linenos"> 20</span></a><span class="sd"> Example:</span>
</span><span id="L-21"><a href="#L-21"><span class="linenos"> 21</span></a><span class="sd"> &gt;&gt;&gt; import sqlglot</span>
</span><span id="L-22"><a href="#L-22"><span class="linenos"> 22</span></a><span class="sd"> &gt;&gt;&gt; sql = &quot;SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y&quot;</span>
</span><span id="L-23"><a href="#L-23"><span class="linenos"> 23</span></a><span class="sd"> &gt;&gt;&gt; expression = sqlglot.parse_one(sql)</span>
</span><span id="L-24"><a href="#L-24"><span class="linenos"> 24</span></a><span class="sd"> &gt;&gt;&gt; pushdown_projections(expression).sql()</span>
</span><span id="L-25"><a href="#L-25"><span class="linenos"> 25</span></a><span class="sd"> &#39;SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y&#39;</span>
</span><span id="L-26"><a href="#L-26"><span class="linenos"> 26</span></a>
</span><span id="L-27"><a href="#L-27"><span class="linenos"> 27</span></a><span class="sd"> Args:</span>
</span><span id="L-28"><a href="#L-28"><span class="linenos"> 28</span></a><span class="sd"> expression (sqlglot.Expression): expression to optimize</span>
</span><span id="L-29"><a href="#L-29"><span class="linenos"> 29</span></a><span class="sd"> Returns:</span>
</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a><span class="sd"> sqlglot.Expression: optimized expression</span>
</span><span id="L-31"><a href="#L-31"><span class="linenos"> 31</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a> <span class="c1"># Map of Scope to all columns being selected by outer queries.</span>
</span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="n">ensure_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span>
</span><span id="L-34"><a href="#L-34"><span class="linenos"> 34</span></a> <span class="n">referenced_columns</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a>
</span><span id="L-36"><a href="#L-36"><span class="linenos"> 36</span></a> <span class="c1"># We build the scope tree (which is traversed in DFS postorder), then iterate</span>
</span><span id="L-37"><a href="#L-37"><span class="linenos"> 37</span></a> <span class="c1"># over the result in reverse order. This should ensure that the set of selected</span>
</span><span id="L-38"><a href="#L-38"><span class="linenos"> 38</span></a> <span class="c1"># columns for a particular scope are completely build by the time we get to it.</span>
</span><span id="L-39"><a href="#L-39"><span class="linenos"> 39</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">)):</span>
</span><span id="L-40"><a href="#L-40"><span class="linenos"> 40</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="n">referenced_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">})</span>
</span><span id="L-41"><a href="#L-41"><span class="linenos"> 41</span></a>
</span><span id="L-42"><a href="#L-42"><span class="linenos"> 42</span></a> <span class="k">if</span> <span class="n">scope</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">&quot;distinct&quot;</span><span class="p">):</span>
</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</span></a> <span class="c1"># We can&#39;t remove columns SELECT DISTINCT nor UNION DISTINCT</span>
</span><span id="L-44"><a href="#L-44"><span class="linenos"> 44</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">}</span>
</span><span id="L-45"><a href="#L-45"><span class="linenos"> 45</span></a>
</span><span id="L-46"><a href="#L-46"><span class="linenos"> 46</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Union</span><span class="p">):</span>
</span><span id="L-47"><a href="#L-47"><span class="linenos"> 47</span></a> <span class="n">left</span><span class="p">,</span> <span class="n">right</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">union_scopes</span>
</span><span id="L-48"><a href="#L-48"><span class="linenos"> 48</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">left</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="L-49"><a href="#L-49"><span class="linenos"> 49</span></a>
</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a> <span class="k">if</span> <span class="nb">any</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">is_star</span> <span class="k">for</span> <span class="n">select</span> <span class="ow">in</span> <span class="n">right</span><span class="o">.</span><span class="n">selects</span><span class="p">):</span>
</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">right</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">is_star</span> <span class="k">for</span> <span class="n">select</span> <span class="ow">in</span> <span class="n">left</span><span class="o">.</span><span class="n">selects</span><span class="p">):</span>
</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">right</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a> <span class="n">right</span><span class="o">.</span><span class="n">selects</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">select</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">selects</span><span class="p">)</span>
</span><span id="L-56"><a href="#L-56"><span class="linenos"> 56</span></a> <span class="k">if</span> <span class="n">SELECT_ALL</span> <span class="ow">in</span> <span class="n">parent_selections</span> <span class="ow">or</span> <span class="n">select</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">parent_selections</span>
</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a> <span class="p">]</span>
</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a>
</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Select</span><span class="p">):</span>
</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a> <span class="n">_remove_unused_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">parent_selections</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="L-61"><a href="#L-61"><span class="linenos"> 61</span></a>
</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a> <span class="c1"># Push the selected columns down to the next scope</span>
</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="p">(</span><span class="n">_</span><span class="p">,</span> <span class="n">source</span><span class="p">)</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">):</span>
</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">source</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="L-67"><a href="#L-67"><span class="linenos"> 67</span></a>
</span><span id="L-68"><a href="#L-68"><span class="linenos"> 68</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a>
</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a>
</span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a><span class="k">def</span> <span class="nf">_remove_unused_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">parent_selections</span><span class="p">):</span>
</span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a> <span class="n">removed_indexes</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</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">&quot;order&quot;</span><span class="p">)</span>
</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a> <span class="c1"># Group columns by source name</span>
</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a> <span class="n">col_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">name</span>
</span><span id="L-67"><a href="#L-67"><span class="linenos"> 67</span></a> <span class="n">selects</span><span class="p">[</span><span class="n">table_name</span><span class="p">]</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">col_name</span><span class="p">)</span>
</span><span id="L-68"><a href="#L-68"><span class="linenos"> 68</span></a>
</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a> <span class="c1"># Push the selected columns down to the next scope</span>
</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="p">(</span><span class="n">_</span><span class="p">,</span> <span class="n">source</span><span class="p">)</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">):</span>
</span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">source</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a>
</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="k">if</span> <span class="n">order</span><span class="p">:</span>
</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a> <span class="c1"># Assume columns without a qualified table are references to output columns</span>
</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="n">order_refs</span> <span class="o">=</span> <span class="p">{</span><span class="n">c</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">order</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">Column</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">c</span><span class="o">.</span><span class="n">table</span><span class="p">}</span>
</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="n">order_refs</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
</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>
</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a>
</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a>
</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a><span class="k">def</span> <span class="nf">_remove_unused_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">parent_selections</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span>
</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</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">&quot;order&quot;</span><span class="p">)</span>
</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a>
</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="n">removed</span> <span class="o">=</span> <span class="kc">False</span>
</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">selection</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">):</span>
</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <span class="k">if</span> <span class="p">(</span>
</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="n">SELECT_ALL</span> <span class="ow">in</span> <span class="n">parent_selections</span>
</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="ow">or</span> <span class="n">selection</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">parent_selections</span>
</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="ow">or</span> <span class="n">selection</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">order_refs</span>
</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="p">):</span>
</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">selection</span><span class="p">)</span>
</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="n">removed_indexes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="n">removed</span> <span class="o">=</span> <span class="kc">True</span>
</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a>
</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="c1"># If there are no remaining selections, just select a single constant</span>
</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">new_selections</span><span class="p">:</span>
</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">DEFAULT_SELECTION</span><span class="p">())</span>
</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a>
</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;expressions&quot;</span><span class="p">,</span> <span class="n">new_selections</span><span class="p">)</span>
</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="k">if</span> <span class="n">removed</span><span class="p">:</span>
</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span>
</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="k">return</span> <span class="n">removed_indexes</span>
</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="k">if</span> <span class="n">order</span><span class="p">:</span>
</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="c1"># Assume columns without a qualified table are references to output columns</span>
</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="n">order_refs</span> <span class="o">=</span> <span class="p">{</span><span class="n">c</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">order</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">Column</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">c</span><span class="o">.</span><span class="n">table</span><span class="p">}</span>
</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="n">order_refs</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a>
</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="n">new_selections</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-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="n">removed</span> <span class="o">=</span> <span class="kc">False</span>
</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="n">star</span> <span class="o">=</span> <span class="kc">False</span>
</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="k">for</span> <span class="n">selection</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span>
</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">selection</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a>
</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="k">if</span> <span class="n">SELECT_ALL</span> <span class="ow">in</span> <span class="n">parent_selections</span> <span class="ow">or</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">parent_selections</span> <span class="ow">or</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">order_refs</span><span class="p">:</span>
</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="n">new_selections</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">selection</span><span class="p">)</span>
</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="k">if</span> <span class="n">selection</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span>
</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="n">star</span> <span class="o">=</span> <span class="kc">True</span>
</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">removed</span> <span class="o">=</span> <span class="kc">True</span>
</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a>
</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> <span class="k">if</span> <span class="n">star</span><span class="p">:</span>
</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="n">resolver</span> <span class="o">=</span> <span class="n">Resolver</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a>
</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a>
</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a><span class="k">def</span> <span class="nf">_remove_indexed_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">indexes_to_remove</span><span class="p">):</span>
</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="n">selection</span> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">selection</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">)</span> <span class="k">if</span> <span class="n">i</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">indexes_to_remove</span>
</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="p">]</span>
</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">new_selections</span><span class="p">:</span>
</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">DEFAULT_SELECTION</span><span class="p">())</span>
</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;expressions&quot;</span><span class="p">,</span> <span class="n">new_selections</span><span class="p">)</span>
</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">parent_selections</span><span class="p">):</span>
</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">new_selections</span><span class="p">:</span>
</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="n">new_selections</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="n">alias</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="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">name</span><span class="p">)),</span> <span class="n">name</span><span class="p">)</span>
</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="p">)</span>
</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a>
</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="c1"># If there are no remaining selections, just select a single constant</span>
</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">new_selections</span><span class="p">:</span>
</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="n">new_selections</span><span class="p">[</span><span class="s2">&quot;&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">DEFAULT_SELECTION</span><span class="p">())</span>
</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a>
</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="o">*</span><span class="n">flatten</span><span class="p">(</span><span class="n">new_selections</span><span class="o">.</span><span class="n">values</span><span class="p">()),</span> <span class="n">append</span><span class="o">=</span><span class="kc">False</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-114"><a href="#L-114"><span class="linenos">114</span></a>
</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="k">if</span> <span class="n">removed</span><span class="p">:</span>
</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span>
</span></pre></div>
@ -184,7 +190,7 @@
</div>
<a class="headerlink" href="#DEFAULT_SELECTION"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="DEFAULT_SELECTION-11"><a href="#DEFAULT_SELECTION-11"><span class="linenos">11</span></a><span class="n">DEFAULT_SELECTION</span> <span class="o">=</span> <span class="k">lambda</span><span class="p">:</span> <span class="n">alias</span><span class="p">(</span><span class="s2">&quot;1&quot;</span><span class="p">,</span> <span class="s2">&quot;_&quot;</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="DEFAULT_SELECTION-14"><a href="#DEFAULT_SELECTION-14"><span class="linenos">14</span></a><span class="n">DEFAULT_SELECTION</span> <span class="o">=</span> <span class="k">lambda</span><span class="p">:</span> <span class="n">alias</span><span class="p">(</span><span class="s2">&quot;1&quot;</span><span class="p">,</span> <span class="s2">&quot;_&quot;</span><span class="p">)</span>
</span></pre></div>
@ -196,68 +202,72 @@
<div class="attr function">
<span class="def">def</span>
<span class="name">pushdown_projections</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span>
<span class="name">pushdown_projections</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span>, </span><span class="param"><span class="n">schema</span><span class="o">=</span><span class="kc">None</span></span><span class="return-annotation">):</span></span>
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<a class="headerlink" href="#pushdown_projections"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="pushdown_projections-14"><a href="#pushdown_projections-14"><span class="linenos">14</span></a><span class="k">def</span> <span class="nf">pushdown_projections</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
</span><span id="pushdown_projections-15"><a href="#pushdown_projections-15"><span class="linenos">15</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="pushdown_projections-16"><a href="#pushdown_projections-16"><span class="linenos">16</span></a><span class="sd"> Rewrite sqlglot AST to remove unused columns projections.</span>
</span><span id="pushdown_projections-17"><a href="#pushdown_projections-17"><span class="linenos">17</span></a>
</span><span id="pushdown_projections-18"><a href="#pushdown_projections-18"><span class="linenos">18</span></a><span class="sd"> Example:</span>
</span><span id="pushdown_projections-19"><a href="#pushdown_projections-19"><span class="linenos">19</span></a><span class="sd"> &gt;&gt;&gt; import sqlglot</span>
</span><span id="pushdown_projections-20"><a href="#pushdown_projections-20"><span class="linenos">20</span></a><span class="sd"> &gt;&gt;&gt; sql = &quot;SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y&quot;</span>
</span><span id="pushdown_projections-21"><a href="#pushdown_projections-21"><span class="linenos">21</span></a><span class="sd"> &gt;&gt;&gt; expression = sqlglot.parse_one(sql)</span>
</span><span id="pushdown_projections-22"><a href="#pushdown_projections-22"><span class="linenos">22</span></a><span class="sd"> &gt;&gt;&gt; pushdown_projections(expression).sql()</span>
</span><span id="pushdown_projections-23"><a href="#pushdown_projections-23"><span class="linenos">23</span></a><span class="sd"> &#39;SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y&#39;</span>
</span><span id="pushdown_projections-24"><a href="#pushdown_projections-24"><span class="linenos">24</span></a>
</span><span id="pushdown_projections-25"><a href="#pushdown_projections-25"><span class="linenos">25</span></a><span class="sd"> Args:</span>
</span><span id="pushdown_projections-26"><a href="#pushdown_projections-26"><span class="linenos">26</span></a><span class="sd"> expression (sqlglot.Expression): expression to optimize</span>
</span><span id="pushdown_projections-27"><a href="#pushdown_projections-27"><span class="linenos">27</span></a><span class="sd"> Returns:</span>
</span><span id="pushdown_projections-28"><a href="#pushdown_projections-28"><span class="linenos">28</span></a><span class="sd"> sqlglot.Expression: optimized expression</span>
</span><span id="pushdown_projections-29"><a href="#pushdown_projections-29"><span class="linenos">29</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="pushdown_projections-30"><a href="#pushdown_projections-30"><span class="linenos">30</span></a> <span class="c1"># Map of Scope to all columns being selected by outer queries.</span>
</span><span id="pushdown_projections-31"><a href="#pushdown_projections-31"><span class="linenos">31</span></a> <span class="n">referenced_columns</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="pushdown_projections-32"><a href="#pushdown_projections-32"><span class="linenos">32</span></a> <span class="n">left_union</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="pushdown_projections-33"><a href="#pushdown_projections-33"><span class="linenos">33</span></a> <span class="n">right_union</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="pushdown_projections-34"><a href="#pushdown_projections-34"><span class="linenos">34</span></a> <span class="c1"># We build the scope tree (which is traversed in DFS postorder), then iterate</span>
</span><span id="pushdown_projections-35"><a href="#pushdown_projections-35"><span class="linenos">35</span></a> <span class="c1"># over the result in reverse order. This should ensure that the set of selected</span>
</span><span id="pushdown_projections-36"><a href="#pushdown_projections-36"><span class="linenos">36</span></a> <span class="c1"># columns for a particular scope are completely build by the time we get to it.</span>
</span><span id="pushdown_projections-37"><a href="#pushdown_projections-37"><span class="linenos">37</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">)):</span>
</span><span id="pushdown_projections-38"><a href="#pushdown_projections-38"><span class="linenos">38</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="n">referenced_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">})</span>
</span><span id="pushdown_projections-39"><a href="#pushdown_projections-39"><span class="linenos">39</span></a>
</span><span id="pushdown_projections-40"><a href="#pushdown_projections-40"><span class="linenos">40</span></a> <span class="k">if</span> <span class="n">scope</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">&quot;distinct&quot;</span><span class="p">):</span>
</span><span id="pushdown_projections-41"><a href="#pushdown_projections-41"><span class="linenos">41</span></a> <span class="c1"># We can&#39;t remove columns SELECT DISTINCT nor UNION DISTINCT</span>
</span><span id="pushdown_projections-42"><a href="#pushdown_projections-42"><span class="linenos">42</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">}</span>
</span><span id="pushdown_projections-43"><a href="#pushdown_projections-43"><span class="linenos">43</span></a>
</span><span id="pushdown_projections-44"><a href="#pushdown_projections-44"><span class="linenos">44</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Union</span><span class="p">):</span>
</span><span id="pushdown_projections-45"><a href="#pushdown_projections-45"><span class="linenos">45</span></a> <span class="n">left_union</span><span class="p">,</span> <span class="n">right_union</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">union_scopes</span>
</span><span id="pushdown_projections-46"><a href="#pushdown_projections-46"><span class="linenos">46</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">left_union</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="pushdown_projections-47"><a href="#pushdown_projections-47"><span class="linenos">47</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">right_union</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="pushdown_projections-48"><a href="#pushdown_projections-48"><span class="linenos">48</span></a>
</span><span id="pushdown_projections-49"><a href="#pushdown_projections-49"><span class="linenos">49</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="n">scope</span> <span class="o">!=</span> <span class="n">right_union</span><span class="p">:</span>
</span><span id="pushdown_projections-50"><a href="#pushdown_projections-50"><span class="linenos">50</span></a> <span class="n">removed_indexes</span> <span class="o">=</span> <span class="n">_remove_unused_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">parent_selections</span><span class="p">)</span>
</span><span id="pushdown_projections-51"><a href="#pushdown_projections-51"><span class="linenos">51</span></a> <span class="c1"># The left union is used for column names to select and if we remove columns from the left</span>
</span><span id="pushdown_projections-52"><a href="#pushdown_projections-52"><span class="linenos">52</span></a> <span class="c1"># we need to also remove those same columns in the right that were at the same position</span>
</span><span id="pushdown_projections-53"><a href="#pushdown_projections-53"><span class="linenos">53</span></a> <span class="k">if</span> <span class="n">scope</span> <span class="ow">is</span> <span class="n">left_union</span><span class="p">:</span>
</span><span id="pushdown_projections-54"><a href="#pushdown_projections-54"><span class="linenos">54</span></a> <span class="n">_remove_indexed_selections</span><span class="p">(</span><span class="n">right_union</span><span class="p">,</span> <span class="n">removed_indexes</span><span class="p">)</span>
</span><span id="pushdown_projections-55"><a href="#pushdown_projections-55"><span class="linenos">55</span></a>
</span><span id="pushdown_projections-56"><a href="#pushdown_projections-56"><span class="linenos">56</span></a> <span class="c1"># Group columns by source name</span>
</span><span id="pushdown_projections-57"><a href="#pushdown_projections-57"><span class="linenos">57</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="pushdown_projections-58"><a href="#pushdown_projections-58"><span class="linenos">58</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="pushdown_projections-59"><a href="#pushdown_projections-59"><span class="linenos">59</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">table</span>
</span><span id="pushdown_projections-60"><a href="#pushdown_projections-60"><span class="linenos">60</span></a> <span class="n">col_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">name</span>
</span><span id="pushdown_projections-61"><a href="#pushdown_projections-61"><span class="linenos">61</span></a> <span class="n">selects</span><span class="p">[</span><span class="n">table_name</span><span class="p">]</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">col_name</span><span class="p">)</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="pushdown_projections-17"><a href="#pushdown_projections-17"><span class="linenos">17</span></a><span class="k">def</span> <span class="nf">pushdown_projections</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">schema</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
</span><span id="pushdown_projections-18"><a href="#pushdown_projections-18"><span class="linenos">18</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="pushdown_projections-19"><a href="#pushdown_projections-19"><span class="linenos">19</span></a><span class="sd"> Rewrite sqlglot AST to remove unused columns projections.</span>
</span><span id="pushdown_projections-20"><a href="#pushdown_projections-20"><span class="linenos">20</span></a>
</span><span id="pushdown_projections-21"><a href="#pushdown_projections-21"><span class="linenos">21</span></a><span class="sd"> Example:</span>
</span><span id="pushdown_projections-22"><a href="#pushdown_projections-22"><span class="linenos">22</span></a><span class="sd"> &gt;&gt;&gt; import sqlglot</span>
</span><span id="pushdown_projections-23"><a href="#pushdown_projections-23"><span class="linenos">23</span></a><span class="sd"> &gt;&gt;&gt; sql = &quot;SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y&quot;</span>
</span><span id="pushdown_projections-24"><a href="#pushdown_projections-24"><span class="linenos">24</span></a><span class="sd"> &gt;&gt;&gt; expression = sqlglot.parse_one(sql)</span>
</span><span id="pushdown_projections-25"><a href="#pushdown_projections-25"><span class="linenos">25</span></a><span class="sd"> &gt;&gt;&gt; pushdown_projections(expression).sql()</span>
</span><span id="pushdown_projections-26"><a href="#pushdown_projections-26"><span class="linenos">26</span></a><span class="sd"> &#39;SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y&#39;</span>
</span><span id="pushdown_projections-27"><a href="#pushdown_projections-27"><span class="linenos">27</span></a>
</span><span id="pushdown_projections-28"><a href="#pushdown_projections-28"><span class="linenos">28</span></a><span class="sd"> Args:</span>
</span><span id="pushdown_projections-29"><a href="#pushdown_projections-29"><span class="linenos">29</span></a><span class="sd"> expression (sqlglot.Expression): expression to optimize</span>
</span><span id="pushdown_projections-30"><a href="#pushdown_projections-30"><span class="linenos">30</span></a><span class="sd"> Returns:</span>
</span><span id="pushdown_projections-31"><a href="#pushdown_projections-31"><span class="linenos">31</span></a><span class="sd"> sqlglot.Expression: optimized expression</span>
</span><span id="pushdown_projections-32"><a href="#pushdown_projections-32"><span class="linenos">32</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="pushdown_projections-33"><a href="#pushdown_projections-33"><span class="linenos">33</span></a> <span class="c1"># Map of Scope to all columns being selected by outer queries.</span>
</span><span id="pushdown_projections-34"><a href="#pushdown_projections-34"><span class="linenos">34</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="n">ensure_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span>
</span><span id="pushdown_projections-35"><a href="#pushdown_projections-35"><span class="linenos">35</span></a> <span class="n">referenced_columns</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="pushdown_projections-36"><a href="#pushdown_projections-36"><span class="linenos">36</span></a>
</span><span id="pushdown_projections-37"><a href="#pushdown_projections-37"><span class="linenos">37</span></a> <span class="c1"># We build the scope tree (which is traversed in DFS postorder), then iterate</span>
</span><span id="pushdown_projections-38"><a href="#pushdown_projections-38"><span class="linenos">38</span></a> <span class="c1"># over the result in reverse order. This should ensure that the set of selected</span>
</span><span id="pushdown_projections-39"><a href="#pushdown_projections-39"><span class="linenos">39</span></a> <span class="c1"># columns for a particular scope are completely build by the time we get to it.</span>
</span><span id="pushdown_projections-40"><a href="#pushdown_projections-40"><span class="linenos">40</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">)):</span>
</span><span id="pushdown_projections-41"><a href="#pushdown_projections-41"><span class="linenos">41</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="n">referenced_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">})</span>
</span><span id="pushdown_projections-42"><a href="#pushdown_projections-42"><span class="linenos">42</span></a>
</span><span id="pushdown_projections-43"><a href="#pushdown_projections-43"><span class="linenos">43</span></a> <span class="k">if</span> <span class="n">scope</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">&quot;distinct&quot;</span><span class="p">):</span>
</span><span id="pushdown_projections-44"><a href="#pushdown_projections-44"><span class="linenos">44</span></a> <span class="c1"># We can&#39;t remove columns SELECT DISTINCT nor UNION DISTINCT</span>
</span><span id="pushdown_projections-45"><a href="#pushdown_projections-45"><span class="linenos">45</span></a> <span class="n">parent_selections</span> <span class="o">=</span> <span class="p">{</span><span class="n">SELECT_ALL</span><span class="p">}</span>
</span><span id="pushdown_projections-46"><a href="#pushdown_projections-46"><span class="linenos">46</span></a>
</span><span id="pushdown_projections-47"><a href="#pushdown_projections-47"><span class="linenos">47</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Union</span><span class="p">):</span>
</span><span id="pushdown_projections-48"><a href="#pushdown_projections-48"><span class="linenos">48</span></a> <span class="n">left</span><span class="p">,</span> <span class="n">right</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">union_scopes</span>
</span><span id="pushdown_projections-49"><a href="#pushdown_projections-49"><span class="linenos">49</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">left</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="pushdown_projections-50"><a href="#pushdown_projections-50"><span class="linenos">50</span></a>
</span><span id="pushdown_projections-51"><a href="#pushdown_projections-51"><span class="linenos">51</span></a> <span class="k">if</span> <span class="nb">any</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">is_star</span> <span class="k">for</span> <span class="n">select</span> <span class="ow">in</span> <span class="n">right</span><span class="o">.</span><span class="n">selects</span><span class="p">):</span>
</span><span id="pushdown_projections-52"><a href="#pushdown_projections-52"><span class="linenos">52</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">right</span><span class="p">]</span> <span class="o">=</span> <span class="n">parent_selections</span>
</span><span id="pushdown_projections-53"><a href="#pushdown_projections-53"><span class="linenos">53</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">is_star</span> <span class="k">for</span> <span class="n">select</span> <span class="ow">in</span> <span class="n">left</span><span class="o">.</span><span class="n">selects</span><span class="p">):</span>
</span><span id="pushdown_projections-54"><a href="#pushdown_projections-54"><span class="linenos">54</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">right</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="pushdown_projections-55"><a href="#pushdown_projections-55"><span class="linenos">55</span></a> <span class="n">right</span><span class="o">.</span><span class="n">selects</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="pushdown_projections-56"><a href="#pushdown_projections-56"><span class="linenos">56</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">select</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">selects</span><span class="p">)</span>
</span><span id="pushdown_projections-57"><a href="#pushdown_projections-57"><span class="linenos">57</span></a> <span class="k">if</span> <span class="n">SELECT_ALL</span> <span class="ow">in</span> <span class="n">parent_selections</span> <span class="ow">or</span> <span class="n">select</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">parent_selections</span>
</span><span id="pushdown_projections-58"><a href="#pushdown_projections-58"><span class="linenos">58</span></a> <span class="p">]</span>
</span><span id="pushdown_projections-59"><a href="#pushdown_projections-59"><span class="linenos">59</span></a>
</span><span id="pushdown_projections-60"><a href="#pushdown_projections-60"><span class="linenos">60</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Select</span><span class="p">):</span>
</span><span id="pushdown_projections-61"><a href="#pushdown_projections-61"><span class="linenos">61</span></a> <span class="n">_remove_unused_selections</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">parent_selections</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="pushdown_projections-62"><a href="#pushdown_projections-62"><span class="linenos">62</span></a>
</span><span id="pushdown_projections-63"><a href="#pushdown_projections-63"><span class="linenos">63</span></a> <span class="c1"># Push the selected columns down to the next scope</span>
</span><span id="pushdown_projections-64"><a href="#pushdown_projections-64"><span class="linenos">64</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="p">(</span><span class="n">_</span><span class="p">,</span> <span class="n">source</span><span class="p">)</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</span><span id="pushdown_projections-65"><a href="#pushdown_projections-65"><span class="linenos">65</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">):</span>
</span><span id="pushdown_projections-66"><a href="#pushdown_projections-66"><span class="linenos">66</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="pushdown_projections-67"><a href="#pushdown_projections-67"><span class="linenos">67</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">source</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="pushdown_projections-68"><a href="#pushdown_projections-68"><span class="linenos">68</span></a>
</span><span id="pushdown_projections-69"><a href="#pushdown_projections-69"><span class="linenos">69</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="pushdown_projections-63"><a href="#pushdown_projections-63"><span class="linenos">63</span></a> <span class="c1"># Group columns by source name</span>
</span><span id="pushdown_projections-64"><a href="#pushdown_projections-64"><span class="linenos">64</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">set</span><span class="p">)</span>
</span><span id="pushdown_projections-65"><a href="#pushdown_projections-65"><span class="linenos">65</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="pushdown_projections-66"><a href="#pushdown_projections-66"><span class="linenos">66</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">table</span>
</span><span id="pushdown_projections-67"><a href="#pushdown_projections-67"><span class="linenos">67</span></a> <span class="n">col_name</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">name</span>
</span><span id="pushdown_projections-68"><a href="#pushdown_projections-68"><span class="linenos">68</span></a> <span class="n">selects</span><span class="p">[</span><span class="n">table_name</span><span class="p">]</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">col_name</span><span class="p">)</span>
</span><span id="pushdown_projections-69"><a href="#pushdown_projections-69"><span class="linenos">69</span></a>
</span><span id="pushdown_projections-70"><a href="#pushdown_projections-70"><span class="linenos">70</span></a> <span class="c1"># Push the selected columns down to the next scope</span>
</span><span id="pushdown_projections-71"><a href="#pushdown_projections-71"><span class="linenos">71</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="p">(</span><span class="n">_</span><span class="p">,</span> <span class="n">source</span><span class="p">)</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</span><span id="pushdown_projections-72"><a href="#pushdown_projections-72"><span class="linenos">72</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">):</span>
</span><span id="pushdown_projections-73"><a href="#pushdown_projections-73"><span class="linenos">73</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="pushdown_projections-74"><a href="#pushdown_projections-74"><span class="linenos">74</span></a> <span class="n">referenced_columns</span><span class="p">[</span><span class="n">source</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="pushdown_projections-75"><a href="#pushdown_projections-75"><span class="linenos">75</span></a>
</span><span id="pushdown_projections-76"><a href="#pushdown_projections-76"><span class="linenos">76</span></a> <span class="k">return</span> <span class="n">expression</span>
</span></pre></div>

912
docs/sqlglot/optimizer/qualify_columns.html
View file

@ -36,6 +36,24 @@
<li>
<a class="function" href="#validate_qualify_columns">validate_qualify_columns</a>
</li>
<li>
<a class="class" href="#Resolver">Resolver</a>
<ul class="memberlist">
<li>
<a class="function" href="#Resolver.__init__">Resolver</a>
</li>
<li>
<a class="function" href="#Resolver.get_table">get_table</a>
</li>
<li>
<a class="variable" href="#Resolver.all_columns">all_columns</a>
</li>
<li>
<a class="function" href="#Resolver.get_source_columns">get_source_columns</a>
</li>
</ul>
</li>
</ul>
@ -88,7 +106,7 @@
</span><span id="L-27"><a href="#L-27"><span class="linenos"> 27</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="n">ensure_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span>
</span><span id="L-28"><a href="#L-28"><span class="linenos"> 28</span></a>
</span><span id="L-29"><a href="#L-29"><span class="linenos"> 29</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a> <span class="n">resolver</span> <span class="o">=</span> <span class="n">_Resolver</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a> <span class="n">resolver</span> <span class="o">=</span> <span class="n">Resolver</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="L-31"><a href="#L-31"><span class="linenos"> 31</span></a> <span class="n">_pop_table_column_aliases</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">ctes</span><span class="p">)</span>
</span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a> <span class="n">_pop_table_column_aliases</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">derived_tables</span><span class="p">)</span>
</span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a> <span class="n">_expand_using</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">)</span>
@ -108,235 +126,235 @@
</span><span id="L-47"><a href="#L-47"><span class="linenos"> 47</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Select</span><span class="p">):</span>
</span><span id="L-48"><a href="#L-48"><span class="linenos"> 48</span></a> <span class="n">unqualified_columns</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">unqualified_columns</span><span class="p">)</span>
</span><span id="L-49"><a href="#L-49"><span class="linenos"> 49</span></a> <span class="k">if</span> <span class="n">scope</span><span class="o">.</span><span class="n">external_columns</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">scope</span><span class="o">.</span><span class="n">is_correlated_subquery</span><span class="p">:</span>
</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">scope</span><span class="o">.</span><span class="n">external_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">table</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a>
</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a> <span class="k">if</span> <span class="n">unqualified_columns</span><span class="p">:</span>
</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Ambiguous columns: </span><span class="si">{</span><span class="n">unqualified_columns</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a>
</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a> <span class="n">column</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">external_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: &#39;</span><span class="si">{</span><span class="n">column</span><span class="o">.</span><span class="n">table</span><span class="si">}</span><span class="s2">&#39; for column &#39;</span><span class="si">{</span><span class="n">column</span><span class="si">}</span><span class="s2">&#39;&quot;</span><span class="p">)</span>
</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a>
</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a> <span class="k">if</span> <span class="n">unqualified_columns</span><span class="p">:</span>
</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Ambiguous columns: </span><span class="si">{</span><span class="n">unqualified_columns</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-56"><a href="#L-56"><span class="linenos"> 56</span></a>
</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a><span class="k">def</span> <span class="nf">_pop_table_column_aliases</span><span class="p">(</span><span class="n">derived_tables</span><span class="p">):</span>
</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a><span class="sd"> Remove table column aliases.</span>
</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a>
</span><span id="L-61"><a href="#L-61"><span class="linenos"> 61</span></a><span class="sd"> (e.g. SELECT ... FROM (SELECT ...) AS foo(col1, col2)</span>
</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a> <span class="k">for</span> <span class="n">derived_table</span> <span class="ow">in</span> <span class="n">derived_tables</span><span class="p">:</span>
</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> <span class="n">table_alias</span> <span class="o">=</span> <span class="n">derived_table</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">&quot;alias&quot;</span><span class="p">)</span>
</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="k">if</span> <span class="n">table_alias</span><span class="p">:</span>
</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a> <span class="n">table_alias</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">&quot;columns&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-67"><a href="#L-67"><span class="linenos"> 67</span></a>
</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a>
</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a><span class="k">def</span> <span class="nf">_pop_table_column_aliases</span><span class="p">(</span><span class="n">derived_tables</span><span class="p">):</span>
</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a><span class="sd"> Remove table column aliases.</span>
</span><span id="L-61"><a href="#L-61"><span class="linenos"> 61</span></a>
</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a><span class="sd"> (e.g. SELECT ... FROM (SELECT ...) AS foo(col1, col2)</span>
</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> <span class="k">for</span> <span class="n">derived_table</span> <span class="ow">in</span> <span class="n">derived_tables</span><span class="p">:</span>
</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="n">table_alias</span> <span class="o">=</span> <span class="n">derived_table</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">&quot;alias&quot;</span><span class="p">)</span>
</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a> <span class="k">if</span> <span class="n">table_alias</span><span class="p">:</span>
</span><span id="L-67"><a href="#L-67"><span class="linenos"> 67</span></a> <span class="n">table_alias</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">&quot;columns&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-68"><a href="#L-68"><span class="linenos"> 68</span></a>
</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a><span class="k">def</span> <span class="nf">_expand_using</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">scope</span><span class="o">.</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-71"><a href="#L-71"><span class="linenos"> 71</span></a> <span class="n">names</span> <span class="o">=</span> <span class="p">{</span><span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias</span> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">}</span>
</span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a> <span class="n">ordered</span> <span class="o">=</span> <span class="p">[</span><span class="n">key</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span> <span class="k">if</span> <span class="n">key</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">names</span><span class="p">]</span>
</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a>
</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a> <span class="c1"># Mapping of automatically joined column names to source names</span>
</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="n">column_tables</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a>
</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">:</span>
</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="n">using</span> <span class="o">=</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">&quot;using&quot;</span><span class="p">)</span>
</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a>
</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">using</span><span class="p">:</span>
</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="k">continue</span>
</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a>
</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="n">join_table</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a>
</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a>
</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span>
</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="k">if</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">ordered</span><span class="p">:</span>
</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">):</span>
</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="k">if</span> <span class="n">column</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="n">columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">k</span>
</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a>
</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="n">ordered</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span>
</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="n">join_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span>
</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="n">conditions</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a>
</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="k">for</span> <span class="n">identifier</span> <span class="ow">in</span> <span class="n">using</span><span class="p">:</span>
</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">identifier</span> <span class="o">=</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span>
</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">identifier</span><span class="p">)</span>
</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a>
</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span> <span class="ow">or</span> <span class="n">identifier</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join_columns</span><span class="p">:</span>
</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Cannot automatically join: </span><span class="si">{</span><span class="n">identifier</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a>
</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a> <span class="n">conditions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">condition</span><span class="p">(</span>
</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">(</span>
</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">),</span>
</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">join_table</span><span class="p">),</span>
</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="p">)</span>
</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="p">)</span>
</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="p">)</span>
</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a>
</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="p">[])</span>
</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span>
</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="k">if</span> <span class="n">join_table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span>
</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span>
</span><span id="L-118"><a href="#L-118"><span class="linenos">118</span></a>
</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">&quot;using&quot;</span><span class="p">)</span>
</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;on&quot;</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="n">conditions</span><span class="p">))</span>
</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a>
</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> <span class="k">if</span> <span class="n">column_tables</span><span class="p">:</span>
</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">column_tables</span><span class="p">:</span>
</span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="p">[</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">]</span>
</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="n">coalesce</span> <span class="o">=</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="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">)</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">]</span>
</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">expressions</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span>
</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a>
</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="c1"># Ensure selects keep their output name</span>
</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</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">Select</span><span class="p">):</span>
</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="n">replacement</span><span class="p">,</span> <span class="n">alias</span><span class="o">=</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a>
</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">replacement</span><span class="p">)</span>
</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a>
</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a>
</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a><span class="k">def</span> <span class="nf">_expand_using</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">scope</span><span class="o">.</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-72"><a href="#L-72"><span class="linenos"> 72</span></a> <span class="n">names</span> <span class="o">=</span> <span class="p">{</span><span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias</span> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">}</span>
</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="n">ordered</span> <span class="o">=</span> <span class="p">[</span><span class="n">key</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span> <span class="k">if</span> <span class="n">key</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">names</span><span class="p">]</span>
</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a>
</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="c1"># Mapping of automatically joined column names to source names</span>
</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a> <span class="n">column_tables</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a>
</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">:</span>
</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="n">using</span> <span class="o">=</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">&quot;using&quot;</span><span class="p">)</span>
</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a>
</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">using</span><span class="p">:</span>
</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="k">continue</span>
</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a>
</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <span class="n">join_table</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias_or_name</span>
</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a>
</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a>
</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span>
</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="k">if</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">ordered</span><span class="p">:</span>
</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">):</span>
</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="k">if</span> <span class="n">column</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="n">columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">k</span>
</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a>
</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="n">ordered</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span>
</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="n">join_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span>
</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="n">conditions</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a>
</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="k">for</span> <span class="n">identifier</span> <span class="ow">in</span> <span class="n">using</span><span class="p">:</span>
</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="n">identifier</span> <span class="o">=</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span>
</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">identifier</span><span class="p">)</span>
</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a>
</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span> <span class="ow">or</span> <span class="n">identifier</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join_columns</span><span class="p">:</span>
</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Cannot automatically join: </span><span class="si">{</span><span class="n">identifier</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a>
</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="n">conditions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">condition</span><span class="p">(</span>
</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">(</span>
</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">),</span>
</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">join_table</span><span class="p">),</span>
</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="p">)</span>
</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="p">)</span>
</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="p">)</span>
</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a>
</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="p">[])</span>
</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span>
</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="k">if</span> <span class="n">join_table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span>
</span><span id="L-118"><a href="#L-118"><span class="linenos">118</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span>
</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a>
</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">&quot;using&quot;</span><span class="p">)</span>
</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;on&quot;</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="n">conditions</span><span class="p">))</span>
</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a>
</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="k">if</span> <span class="n">column_tables</span><span class="p">:</span>
</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">column_tables</span><span class="p">:</span>
</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="p">[</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">]</span>
</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="n">coalesce</span> <span class="o">=</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="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">)</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">]</span>
</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">expressions</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span>
</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a>
</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="c1"># Ensure selects keep their output name</span>
</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</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">Select</span><span class="p">):</span>
</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="n">replacement</span><span class="p">,</span> <span class="n">alias</span><span class="o">=</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a>
</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">replacement</span><span class="p">)</span>
</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a>
</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a><span class="k">def</span> <span class="nf">_expand_group_by</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">scope</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">&quot;group&quot;</span><span class="p">)</span>
</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">group</span><span class="p">:</span>
</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a> <span class="k">return</span>
</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a>
</span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a> <span class="c1"># Replace references to select aliases</span>
</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a> <span class="k">def</span> <span class="nf">transform</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span><span class="p">):</span>
</span><span id="L-143"><a href="#L-143"><span class="linenos">143</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">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">node</span><span class="o">.</span><span class="n">table</span><span class="p">:</span>
</span><span id="L-144"><a href="#L-144"><span class="linenos">144</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a>
</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> <span class="c1"># Source columns get priority over select aliases</span>
</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> <span class="k">if</span> <span class="n">table</span><span class="p">:</span>
</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table</span><span class="p">))</span>
</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="k">return</span> <span class="n">node</span>
</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a>
</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="p">{</span><span class="n">s</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">s</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">}</span>
</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a>
</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="k">if</span> <span class="n">select</span><span class="p">:</span>
</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span>
</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span>
</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="k">return</span> <span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a>
</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a> <span class="k">return</span> <span class="n">node</span>
</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a>
</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a> <span class="n">group</span><span class="o">.</span><span class="n">transform</span><span class="p">(</span><span class="n">transform</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-163"><a href="#L-163"><span class="linenos">163</span></a> <span class="n">group</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;expressions&quot;</span><span class="p">,</span> <span class="n">_expand_positional_references</span><span class="p">(</span><span class="n">scope</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="L-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;group&quot;</span><span class="p">,</span> <span class="n">group</span><span class="p">)</span>
</span><span id="L-165"><a href="#L-165"><span class="linenos">165</span></a>
</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a>
</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a><span class="k">def</span> <span class="nf">_expand_group_by</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">scope</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">&quot;group&quot;</span><span class="p">)</span>
</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">group</span><span class="p">:</span>
</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a> <span class="k">return</span>
</span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a>
</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a> <span class="c1"># Replace references to select aliases</span>
</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a> <span class="k">def</span> <span class="nf">transform</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span><span class="p">):</span>
</span><span id="L-144"><a href="#L-144"><span class="linenos">144</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">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">node</span><span class="o">.</span><span class="n">table</span><span class="p">:</span>
</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a>
</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> <span class="c1"># Source columns get priority over select aliases</span>
</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="k">if</span> <span class="n">table</span><span class="p">:</span>
</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table</span><span class="p">))</span>
</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a> <span class="k">return</span> <span class="n">node</span>
</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a>
</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="p">{</span><span class="n">s</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">s</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">}</span>
</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a>
</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="k">if</span> <span class="n">select</span><span class="p">:</span>
</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span>
</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span>
</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a> <span class="k">return</span> <span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a>
</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="k">return</span> <span class="n">node</span>
</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a>
</span><span id="L-163"><a href="#L-163"><span class="linenos">163</span></a> <span class="n">group</span><span class="o">.</span><span class="n">transform</span><span class="p">(</span><span class="n">transform</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-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="n">group</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;expressions&quot;</span><span class="p">,</span> <span class="n">_expand_positional_references</span><span class="p">(</span><span class="n">scope</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="L-165"><a href="#L-165"><span class="linenos">165</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;group&quot;</span><span class="p">,</span> <span class="n">group</span><span class="p">)</span>
</span><span id="L-166"><a href="#L-166"><span class="linenos">166</span></a>
</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a><span class="k">def</span> <span class="nf">_expand_order_by</span><span class="p">(</span><span class="n">scope</span><span class="p">):</span>
</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</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">&quot;order&quot;</span><span class="p">)</span>
</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">order</span><span class="p">:</span>
</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="k">return</span>
</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a>
</span><span id="L-172"><a href="#L-172"><span class="linenos">172</span></a> <span class="n">ordereds</span> <span class="o">=</span> <span class="n">order</span><span class="o">.</span><span class="n">expressions</span>
</span><span id="L-173"><a href="#L-173"><span class="linenos">173</span></a> <span class="k">for</span> <span class="n">ordered</span><span class="p">,</span> <span class="n">new_expression</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span>
</span><span id="L-174"><a href="#L-174"><span class="linenos">174</span></a> <span class="n">ordereds</span><span class="p">,</span>
</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="n">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">(</span><span class="n">o</span><span class="o">.</span><span class="n">this</span> <span class="k">for</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">ordereds</span><span class="p">)),</span>
</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="p">):</span>
</span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> <span class="n">ordered</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="n">new_expression</span><span class="p">)</span>
</span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a>
</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a>
</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a><span class="k">def</span> <span class="nf">_expand_order_by</span><span class="p">(</span><span class="n">scope</span><span class="p">):</span>
</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</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">&quot;order&quot;</span><span class="p">)</span>
</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">order</span><span class="p">:</span>
</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a> <span class="k">return</span>
</span><span id="L-172"><a href="#L-172"><span class="linenos">172</span></a>
</span><span id="L-173"><a href="#L-173"><span class="linenos">173</span></a> <span class="n">ordereds</span> <span class="o">=</span> <span class="n">order</span><span class="o">.</span><span class="n">expressions</span>
</span><span id="L-174"><a href="#L-174"><span class="linenos">174</span></a> <span class="k">for</span> <span class="n">ordered</span><span class="p">,</span> <span class="n">new_expression</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span>
</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="n">ordereds</span><span class="p">,</span>
</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="n">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">(</span><span class="n">o</span><span class="o">.</span><span class="n">this</span> <span class="k">for</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">ordereds</span><span class="p">)),</span>
</span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> <span class="p">):</span>
</span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a> <span class="n">ordered</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="n">new_expression</span><span class="p">)</span>
</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a>
</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a><span class="k">def</span> <span class="nf">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span>
</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> <span class="n">new_nodes</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span>
</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a> <span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">is_int</span><span class="p">:</span>
</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="k">try</span><span class="p">:</span>
</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">[</span><span class="nb">int</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a> <span class="k">except</span> <span class="ne">IndexError</span><span class="p">:</span>
</span><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown output column: </span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-188"><a href="#L-188"><span class="linenos">188</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span>
</span><span id="L-189"><a href="#L-189"><span class="linenos">189</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-190"><a href="#L-190"><span class="linenos">190</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span>
</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a>
</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a> <span class="k">return</span> <span class="n">new_nodes</span>
</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a>
</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a>
</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a><span class="k">def</span> <span class="nf">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span>
</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> <span class="n">new_nodes</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span>
</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">is_int</span><span class="p">:</span>
</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> <span class="k">try</span><span class="p">:</span>
</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">[</span><span class="nb">int</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
</span><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a> <span class="k">except</span> <span class="ne">IndexError</span><span class="p">:</span>
</span><span id="L-188"><a href="#L-188"><span class="linenos">188</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown output column: </span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-189"><a href="#L-189"><span class="linenos">189</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span>
</span><span id="L-190"><a href="#L-190"><span class="linenos">190</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span>
</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a>
</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> <span class="k">return</span> <span class="n">new_nodes</span>
</span><span id="L-197"><a href="#L-197"><span class="linenos">197</span></a>
</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a><span class="k">def</span> <span class="nf">_qualify_columns</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Disambiguate columns, ensuring each column specifies a source&quot;&quot;&quot;</span>
</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-201"><a href="#L-201"><span class="linenos">201</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span>
</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a>
</span><span id="L-204"><a href="#L-204"><span class="linenos">204</span></a> <span class="k">if</span> <span class="n">column_table</span> <span class="ow">and</span> <span class="n">column_table</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="L-205"><a href="#L-205"><span class="linenos">205</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">column_table</span><span class="p">)</span>
</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> <span class="k">if</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="n">column_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">:</span>
</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown column: </span><span class="si">{</span><span class="n">column_name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a>
</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column_table</span><span class="p">:</span>
</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span>
</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a>
</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> <span class="c1"># column_table can be a &#39;&#39; because bigquery unnest has no table alias</span>
</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span>
</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">column_table</span><span class="p">))</span>
</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a>
</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> <span class="n">columns_missing_from_scope</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> <span class="c1"># Determine whether each reference in the order by clause is to a column or an alias.</span>
</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="k">for</span> <span class="n">ordered</span> <span class="ow">in</span> <span class="n">scope</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">Ordered</span><span class="p">):</span>
</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ordered</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">Column</span><span class="p">):</span>
</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> <span class="k">if</span> <span class="p">(</span>
</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-222"><a href="#L-222"><span class="linenos">222</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">ordered</span>
</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span>
</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a> <span class="p">):</span>
</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span>
</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a>
</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a> <span class="c1"># Determine whether each reference in the having clause is to a column or an alias.</span>
</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> <span class="k">for</span> <span class="n">having</span> <span class="ow">in</span> <span class="n">scope</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">Having</span><span class="p">):</span>
</span><span id="L-229"><a href="#L-229"><span class="linenos">229</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">having</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">Column</span><span class="p">):</span>
</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> <span class="k">if</span> <span class="p">(</span>
</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">find_ancestor</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">)</span>
</span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span>
</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> <span class="p">):</span>
</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span>
</span><span id="L-236"><a href="#L-236"><span class="linenos">236</span></a>
</span><span id="L-237"><a href="#L-237"><span class="linenos">237</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns_missing_from_scope</span><span class="p">:</span>
</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a>
</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span>
</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">column_table</span><span class="p">))</span>
</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a>
</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a>
</span><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a><span class="k">def</span> <span class="nf">_qualify_columns</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Disambiguate columns, ensuring each column specifies a source&quot;&quot;&quot;</span>
</span><span id="L-201"><a href="#L-201"><span class="linenos">201</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span>
</span><span id="L-204"><a href="#L-204"><span class="linenos">204</span></a>
</span><span id="L-205"><a href="#L-205"><span class="linenos">205</span></a> <span class="k">if</span> <span class="n">column_table</span> <span class="ow">and</span> <span class="n">column_table</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">column_table</span><span class="p">)</span>
</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a> <span class="k">if</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="n">column_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="s2">&quot;*&quot;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">:</span>
</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown column: </span><span class="si">{</span><span class="n">column_name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a>
</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column_table</span><span class="p">:</span>
</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span>
</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a>
</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="c1"># column_table can be a &#39;&#39; because bigquery unnest has no table alias</span>
</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span>
</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">column_table</span><span class="p">))</span>
</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a>
</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> <span class="n">columns_missing_from_scope</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="c1"># Determine whether each reference in the order by clause is to a column or an alias.</span>
</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="k">for</span> <span class="n">ordered</span> <span class="ow">in</span> <span class="n">scope</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">Ordered</span><span class="p">):</span>
</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ordered</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">Column</span><span class="p">):</span>
</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> <span class="k">if</span> <span class="p">(</span>
</span><span id="L-222"><a href="#L-222"><span class="linenos">222</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">ordered</span>
</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span>
</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> <span class="p">):</span>
</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span>
</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a>
</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> <span class="c1"># Determine whether each reference in the having clause is to a column or an alias.</span>
</span><span id="L-229"><a href="#L-229"><span class="linenos">229</span></a> <span class="k">for</span> <span class="n">having</span> <span class="ow">in</span> <span class="n">scope</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">Having</span><span class="p">):</span>
</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">having</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">Column</span><span class="p">):</span>
</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> <span class="k">if</span> <span class="p">(</span>
</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">find_ancestor</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">)</span>
</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span>
</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a> <span class="p">):</span>
</span><span id="L-236"><a href="#L-236"><span class="linenos">236</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span>
</span><span id="L-237"><a href="#L-237"><span class="linenos">237</span></a>
</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns_missing_from_scope</span><span class="p">:</span>
</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a>
</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span>
</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;table&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">column_table</span><span class="p">))</span>
</span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a>
</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a><span class="k">def</span> <span class="nf">_expand_stars</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Expand stars to lists of column selections&quot;&quot;&quot;</span>
</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a>
</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> <span class="n">except_columns</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> <span class="n">replace_columns</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a>
</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span>
</span><span id="L-252"><a href="#L-252"><span class="linenos">252</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">Star</span><span class="p">):</span>
</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span>
</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="n">_add_except_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span>
</span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> <span class="n">_add_replace_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span>
</span><span id="L-256"><a href="#L-256"><span class="linenos">256</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">Column</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">Star</span><span class="p">):</span>
</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="o">.</span><span class="n">table</span><span class="p">]</span>
</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a> <span class="n">_add_except_columns</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">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span>
</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a> <span class="n">_add_replace_columns</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">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span>
</span><span id="L-260"><a href="#L-260"><span class="linenos">260</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> <span class="k">continue</span>
</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a>
</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span>
</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span>
</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> <span class="sa">f</span><span class="s2">&quot;Table has no schema/columns. Cannot expand star for table: </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">.&quot;</span>
</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="p">)</span>
</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="n">table_id</span> <span class="o">=</span> <span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
</span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">except_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="nb">set</span><span class="p">()):</span>
</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">replace_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> <span class="n">column</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span>
</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">alias_</span><span class="p">)</span> <span class="k">if</span> <span class="n">alias_</span> <span class="o">!=</span> <span class="n">name</span> <span class="k">else</span> <span class="n">column</span><span class="p">)</span>
</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a>
</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a>
</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a><span class="k">def</span> <span class="nf">_expand_stars</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span>
</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Expand stars to lists of column selections&quot;&quot;&quot;</span>
</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a>
</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> <span class="n">except_columns</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="n">replace_columns</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a>
</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span>
</span><span id="L-253"><a href="#L-253"><span class="linenos">253</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">Star</span><span class="p">):</span>
</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span>
</span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> <span class="n">_add_except_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span>
</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> <span class="n">_add_replace_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span>
</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> <span class="k">elif</span> <span class="n">expression</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span>
</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="o">.</span><span class="n">table</span><span class="p">]</span>
</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a> <span class="n">_add_except_columns</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">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span>
</span><span id="L-260"><a href="#L-260"><span class="linenos">260</span></a> <span class="n">_add_replace_columns</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">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span>
</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a> <span class="k">continue</span>
</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a>
</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span>
</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a>
</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> <span class="k">if</span> <span class="n">columns</span> <span class="ow">and</span> <span class="s2">&quot;*&quot;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="n">table_id</span> <span class="o">=</span> <span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">except_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="nb">set</span><span class="p">()):</span>
</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">replace_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <span class="n">column</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span>
</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">alias_</span><span class="p">)</span> <span class="k">if</span> <span class="n">alias_</span> <span class="o">!=</span> <span class="n">name</span> <span class="k">else</span> <span class="n">column</span><span class="p">)</span>
</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> <span class="k">return</span>
</span><span id="L-279"><a href="#L-279"><span class="linenos">279</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;expressions&quot;</span><span class="p">,</span> <span class="n">new_selections</span><span class="p">)</span>
</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a>
</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a>
@ -374,7 +392,7 @@
</span><span id="L-313"><a href="#L-313"><span class="linenos">313</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subquery</span><span class="p">):</span>
</span><span id="L-314"><a href="#L-314"><span class="linenos">314</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">selection</span><span class="o">.</span><span class="n">output_name</span><span class="p">:</span>
</span><span id="L-315"><a href="#L-315"><span class="linenos">315</span></a> <span class="n">selection</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;alias&quot;</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="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;_col_</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)))</span>
</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span>
</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</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="ow">and</span> <span class="ow">not</span> <span class="n">selection</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span>
</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">alias</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="s2">&quot;&quot;</span><span class="p">),</span> <span class="n">alias</span><span class="o">=</span><span class="n">selection</span><span class="o">.</span><span class="n">output_name</span> <span class="ow">or</span> <span class="sa">f</span><span class="s2">&quot;_col_</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-318"><a href="#L-318"><span class="linenos">318</span></a> <span class="n">alias_</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="n">selection</span><span class="p">)</span>
</span><span id="L-319"><a href="#L-319"><span class="linenos">319</span></a> <span class="n">selection</span> <span class="o">=</span> <span class="n">alias_</span>
@ -387,7 +405,7 @@
</span><span id="L-326"><a href="#L-326"><span class="linenos">326</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;expressions&quot;</span><span class="p">,</span> <span class="n">new_selections</span><span class="p">)</span>
</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a>
</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a>
</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a><span class="k">class</span> <span class="nc">_Resolver</span><span class="p">:</span>
</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a><span class="k">class</span> <span class="nc">Resolver</span><span class="p">:</span>
</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a><span class="sd"> Helper for resolving columns.</span>
</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a>
@ -419,91 +437,93 @@
</span><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a>
</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span><span class="p">:</span>
</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span>
</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> <span class="n">source</span> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span>
</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a> <span class="p">)</span>
</span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a>
</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="k">return</span> <span class="n">table</span>
</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> <span class="n">source</span>
</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
</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">columns</span> <span class="ow">or</span> <span class="s2">&quot;*&quot;</span> <span class="ow">in</span> <span class="n">columns</span>
</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> <span class="p">)</span>
</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a>
</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="nd">@property</span>
</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;All available columns of all sources in this scope&quot;&quot;&quot;</span>
</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span>
</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="p">}</span>
</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span>
</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a>
</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Resolve the source columns for a given source `name`&quot;&quot;&quot;</span>
</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a>
</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="k">return</span> <span class="n">table</span>
</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a>
</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="nd">@property</span>
</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;All available columns of all sources in this scope&quot;&quot;&quot;</span>
</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span>
</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> <span class="p">}</span>
</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span>
</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a>
</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Resolve the source columns for a given source `name`&quot;&quot;&quot;</span>
</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="L-383"><a href="#L-383"><span class="linenos">383</span></a>
</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span>
</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span>
</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span>
</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a>
</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">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span>
</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span>
</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a>
</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope&#39;s named selects</span>
</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span>
</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a>
</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span>
</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span>
</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="p">}</span>
</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span>
</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a>
</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span>
</span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a><span class="sd"> Find all the unambiguous columns in sources.</span>
</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a>
</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a><span class="sd"> Args:</span>
</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span>
</span><span id="L-408"><a href="#L-408"><span class="linenos">408</span></a><span class="sd"> Returns:</span>
</span><span id="L-409"><a href="#L-409"><span class="linenos">409</span></a><span class="sd"> dict: Mapping of column name to source name</span>
</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span>
</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a> <span class="k">return</span> <span class="p">{}</span>
</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a>
</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a>
</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span>
</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span>
</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span>
</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a>
</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">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span>
</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span>
</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a>
</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope&#39;s named selects</span>
</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span>
</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a>
</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span>
</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span>
</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="p">}</span>
</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span>
</span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a>
</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span>
</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a><span class="sd"> Find all the unambiguous columns in sources.</span>
</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a>
</span><span id="L-408"><a href="#L-408"><span class="linenos">408</span></a><span class="sd"> Args:</span>
</span><span id="L-409"><a href="#L-409"><span class="linenos">409</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span>
</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a><span class="sd"> Returns:</span>
</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a><span class="sd"> dict: Mapping of column name to source name</span>
</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span>
</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> <span class="k">return</span> <span class="p">{}</span>
</span><span id="L-415"><a href="#L-415"><span class="linenos">415</span></a>
</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-417"><a href="#L-417"><span class="linenos">417</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span>
</span><span id="L-418"><a href="#L-418"><span class="linenos">418</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span>
</span><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a>
</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span>
</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span>
</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span>
</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span>
</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a>
</span><span id="L-429"><a href="#L-429"><span class="linenos">429</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span>
</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
</span><span id="L-417"><a href="#L-417"><span class="linenos">417</span></a>
</span><span id="L-418"><a href="#L-418"><span class="linenos">418</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span>
</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span>
</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a>
</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span>
</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span>
</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span>
</span><span id="L-429"><a href="#L-429"><span class="linenos">429</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span>
</span><span id="L-430"><a href="#L-430"><span class="linenos">430</span></a>
</span><span id="L-431"><a href="#L-431"><span class="linenos">431</span></a> <span class="nd">@staticmethod</span>
</span><span id="L-432"><a href="#L-432"><span class="linenos">432</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span>
</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a><span class="sd"> Find the unique columns in a list of columns.</span>
</span><span id="L-435"><a href="#L-435"><span class="linenos">435</span></a>
</span><span id="L-436"><a href="#L-436"><span class="linenos">436</span></a><span class="sd"> Example:</span>
</span><span id="L-437"><a href="#L-437"><span class="linenos">437</span></a><span class="sd"> &gt;&gt;&gt; sorted(_Resolver._find_unique_columns([&quot;a&quot;, &quot;b&quot;, &quot;b&quot;, &quot;c&quot;]))</span>
</span><span id="L-438"><a href="#L-438"><span class="linenos">438</span></a><span class="sd"> [&#39;a&#39;, &#39;c&#39;]</span>
</span><span id="L-439"><a href="#L-439"><span class="linenos">439</span></a>
</span><span id="L-440"><a href="#L-440"><span class="linenos">440</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span>
</span><span id="L-441"><a href="#L-441"><span class="linenos">441</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-442"><a href="#L-442"><span class="linenos">442</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-443"><a href="#L-443"><span class="linenos">443</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-444"><a href="#L-444"><span class="linenos">444</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span>
</span><span id="L-445"><a href="#L-445"><span class="linenos">445</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span>
</span><span id="L-431"><a href="#L-431"><span class="linenos">431</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span>
</span><span id="L-432"><a href="#L-432"><span class="linenos">432</span></a>
</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a> <span class="nd">@staticmethod</span>
</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span>
</span><span id="L-435"><a href="#L-435"><span class="linenos">435</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-436"><a href="#L-436"><span class="linenos">436</span></a><span class="sd"> Find the unique columns in a list of columns.</span>
</span><span id="L-437"><a href="#L-437"><span class="linenos">437</span></a>
</span><span id="L-438"><a href="#L-438"><span class="linenos">438</span></a><span class="sd"> Example:</span>
</span><span id="L-439"><a href="#L-439"><span class="linenos">439</span></a><span class="sd"> &gt;&gt;&gt; sorted(Resolver._find_unique_columns([&quot;a&quot;, &quot;b&quot;, &quot;b&quot;, &quot;c&quot;]))</span>
</span><span id="L-440"><a href="#L-440"><span class="linenos">440</span></a><span class="sd"> [&#39;a&#39;, &#39;c&#39;]</span>
</span><span id="L-441"><a href="#L-441"><span class="linenos">441</span></a>
</span><span id="L-442"><a href="#L-442"><span class="linenos">442</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span>
</span><span id="L-443"><a href="#L-443"><span class="linenos">443</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-444"><a href="#L-444"><span class="linenos">444</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-445"><a href="#L-445"><span class="linenos">445</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="L-446"><a href="#L-446"><span class="linenos">446</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span>
</span><span id="L-447"><a href="#L-447"><span class="linenos">447</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span>
</span></pre></div>
@ -539,7 +559,7 @@
</span><span id="qualify_columns-28"><a href="#qualify_columns-28"><span class="linenos">28</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="n">ensure_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span>
</span><span id="qualify_columns-29"><a href="#qualify_columns-29"><span class="linenos">29</span></a>
</span><span id="qualify_columns-30"><a href="#qualify_columns-30"><span class="linenos">30</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
</span><span id="qualify_columns-31"><a href="#qualify_columns-31"><span class="linenos">31</span></a> <span class="n">resolver</span> <span class="o">=</span> <span class="n">_Resolver</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="qualify_columns-31"><a href="#qualify_columns-31"><span class="linenos">31</span></a> <span class="n">resolver</span> <span class="o">=</span> <span class="n">Resolver</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">)</span>
</span><span id="qualify_columns-32"><a href="#qualify_columns-32"><span class="linenos">32</span></a> <span class="n">_pop_table_column_aliases</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">ctes</span><span class="p">)</span>
</span><span id="qualify_columns-33"><a href="#qualify_columns-33"><span class="linenos">33</span></a> <span class="n">_pop_table_column_aliases</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">derived_tables</span><span class="p">)</span>
</span><span id="qualify_columns-34"><a href="#qualify_columns-34"><span class="linenos">34</span></a> <span class="n">_expand_using</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">)</span>
@ -602,11 +622,12 @@
</span><span id="validate_qualify_columns-48"><a href="#validate_qualify_columns-48"><span class="linenos">48</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">scope</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">Select</span><span class="p">):</span>
</span><span id="validate_qualify_columns-49"><a href="#validate_qualify_columns-49"><span class="linenos">49</span></a> <span class="n">unqualified_columns</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">unqualified_columns</span><span class="p">)</span>
</span><span id="validate_qualify_columns-50"><a href="#validate_qualify_columns-50"><span class="linenos">50</span></a> <span class="k">if</span> <span class="n">scope</span><span class="o">.</span><span class="n">external_columns</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">scope</span><span class="o">.</span><span class="n">is_correlated_subquery</span><span class="p">:</span>
</span><span id="validate_qualify_columns-51"><a href="#validate_qualify_columns-51"><span class="linenos">51</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">scope</span><span class="o">.</span><span class="n">external_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">table</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="validate_qualify_columns-52"><a href="#validate_qualify_columns-52"><span class="linenos">52</span></a>
</span><span id="validate_qualify_columns-53"><a href="#validate_qualify_columns-53"><span class="linenos">53</span></a> <span class="k">if</span> <span class="n">unqualified_columns</span><span class="p">:</span>
</span><span id="validate_qualify_columns-54"><a href="#validate_qualify_columns-54"><span class="linenos">54</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Ambiguous columns: </span><span class="si">{</span><span class="n">unqualified_columns</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="validate_qualify_columns-55"><a href="#validate_qualify_columns-55"><span class="linenos">55</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="validate_qualify_columns-51"><a href="#validate_qualify_columns-51"><span class="linenos">51</span></a> <span class="n">column</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">external_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="validate_qualify_columns-52"><a href="#validate_qualify_columns-52"><span class="linenos">52</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: &#39;</span><span class="si">{</span><span class="n">column</span><span class="o">.</span><span class="n">table</span><span class="si">}</span><span class="s2">&#39; for column &#39;</span><span class="si">{</span><span class="n">column</span><span class="si">}</span><span class="s2">&#39;&quot;</span><span class="p">)</span>
</span><span id="validate_qualify_columns-53"><a href="#validate_qualify_columns-53"><span class="linenos">53</span></a>
</span><span id="validate_qualify_columns-54"><a href="#validate_qualify_columns-54"><span class="linenos">54</span></a> <span class="k">if</span> <span class="n">unqualified_columns</span><span class="p">:</span>
</span><span id="validate_qualify_columns-55"><a href="#validate_qualify_columns-55"><span class="linenos">55</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Ambiguous columns: </span><span class="si">{</span><span class="n">unqualified_columns</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="validate_qualify_columns-56"><a href="#validate_qualify_columns-56"><span class="linenos">56</span></a> <span class="k">return</span> <span class="n">expression</span>
</span></pre></div>
@ -615,6 +636,273 @@
</section>
<section id="Resolver">
<input id="Resolver-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">Resolver</span>:
<label class="view-source-button" for="Resolver-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Resolver"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Resolver-330"><a href="#Resolver-330"><span class="linenos">330</span></a><span class="k">class</span> <span class="nc">Resolver</span><span class="p">:</span>
</span><span id="Resolver-331"><a href="#Resolver-331"><span class="linenos">331</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Resolver-332"><a href="#Resolver-332"><span class="linenos">332</span></a><span class="sd"> Helper for resolving columns.</span>
</span><span id="Resolver-333"><a href="#Resolver-333"><span class="linenos">333</span></a>
</span><span id="Resolver-334"><a href="#Resolver-334"><span class="linenos">334</span></a><span class="sd"> This is a class so we can lazily load some things and easily share them across functions.</span>
</span><span id="Resolver-335"><a href="#Resolver-335"><span class="linenos">335</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Resolver-336"><a href="#Resolver-336"><span class="linenos">336</span></a>
</span><span id="Resolver-337"><a href="#Resolver-337"><span class="linenos">337</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span>
</span><span id="Resolver-338"><a href="#Resolver-338"><span class="linenos">338</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span>
</span><span id="Resolver-339"><a href="#Resolver-339"><span class="linenos">339</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span>
</span><span id="Resolver-340"><a href="#Resolver-340"><span class="linenos">340</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="Resolver-341"><a href="#Resolver-341"><span class="linenos">341</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="Resolver-342"><a href="#Resolver-342"><span class="linenos">342</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="Resolver-343"><a href="#Resolver-343"><span class="linenos">343</span></a>
</span><span id="Resolver-344"><a href="#Resolver-344"><span class="linenos">344</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span>
</span><span id="Resolver-345"><a href="#Resolver-345"><span class="linenos">345</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Resolver-346"><a href="#Resolver-346"><span class="linenos">346</span></a><span class="sd"> Get the table for a column name.</span>
</span><span id="Resolver-347"><a href="#Resolver-347"><span class="linenos">347</span></a>
</span><span id="Resolver-348"><a href="#Resolver-348"><span class="linenos">348</span></a><span class="sd"> Args:</span>
</span><span id="Resolver-349"><a href="#Resolver-349"><span class="linenos">349</span></a><span class="sd"> column_name: The column name to find the table for.</span>
</span><span id="Resolver-350"><a href="#Resolver-350"><span class="linenos">350</span></a><span class="sd"> Returns:</span>
</span><span id="Resolver-351"><a href="#Resolver-351"><span class="linenos">351</span></a><span class="sd"> The table name if it can be found/inferred.</span>
</span><span id="Resolver-352"><a href="#Resolver-352"><span class="linenos">352</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Resolver-353"><a href="#Resolver-353"><span class="linenos">353</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="Resolver-354"><a href="#Resolver-354"><span class="linenos">354</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span>
</span><span id="Resolver-355"><a href="#Resolver-355"><span class="linenos">355</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span>
</span><span id="Resolver-356"><a href="#Resolver-356"><span class="linenos">356</span></a> <span class="p">)</span>
</span><span id="Resolver-357"><a href="#Resolver-357"><span class="linenos">357</span></a>
</span><span id="Resolver-358"><a href="#Resolver-358"><span class="linenos">358</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span>
</span><span id="Resolver-359"><a href="#Resolver-359"><span class="linenos">359</span></a>
</span><span id="Resolver-360"><a href="#Resolver-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span><span class="p">:</span>
</span><span id="Resolver-361"><a href="#Resolver-361"><span class="linenos">361</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span>
</span><span id="Resolver-362"><a href="#Resolver-362"><span class="linenos">362</span></a> <span class="n">source</span>
</span><span id="Resolver-363"><a href="#Resolver-363"><span class="linenos">363</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
</span><span id="Resolver-364"><a href="#Resolver-364"><span class="linenos">364</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">&quot;*&quot;</span> <span class="ow">in</span> <span class="n">columns</span>
</span><span id="Resolver-365"><a href="#Resolver-365"><span class="linenos">365</span></a> <span class="p">)</span>
</span><span id="Resolver-366"><a href="#Resolver-366"><span class="linenos">366</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
</span><span id="Resolver-367"><a href="#Resolver-367"><span class="linenos">367</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="Resolver-368"><a href="#Resolver-368"><span class="linenos">368</span></a>
</span><span id="Resolver-369"><a href="#Resolver-369"><span class="linenos">369</span></a> <span class="k">return</span> <span class="n">table</span>
</span><span id="Resolver-370"><a href="#Resolver-370"><span class="linenos">370</span></a>
</span><span id="Resolver-371"><a href="#Resolver-371"><span class="linenos">371</span></a> <span class="nd">@property</span>
</span><span id="Resolver-372"><a href="#Resolver-372"><span class="linenos">372</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="Resolver-373"><a href="#Resolver-373"><span class="linenos">373</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;All available columns of all sources in this scope&quot;&quot;&quot;</span>
</span><span id="Resolver-374"><a href="#Resolver-374"><span class="linenos">374</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="Resolver-375"><a href="#Resolver-375"><span class="linenos">375</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="Resolver-376"><a href="#Resolver-376"><span class="linenos">376</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span>
</span><span id="Resolver-377"><a href="#Resolver-377"><span class="linenos">377</span></a> <span class="p">}</span>
</span><span id="Resolver-378"><a href="#Resolver-378"><span class="linenos">378</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span>
</span><span id="Resolver-379"><a href="#Resolver-379"><span class="linenos">379</span></a>
</span><span id="Resolver-380"><a href="#Resolver-380"><span class="linenos">380</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
</span><span id="Resolver-381"><a href="#Resolver-381"><span class="linenos">381</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Resolve the source columns for a given source `name`&quot;&quot;&quot;</span>
</span><span id="Resolver-382"><a href="#Resolver-382"><span class="linenos">382</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="Resolver-383"><a href="#Resolver-383"><span class="linenos">383</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="Resolver-384"><a href="#Resolver-384"><span class="linenos">384</span></a>
</span><span id="Resolver-385"><a href="#Resolver-385"><span class="linenos">385</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
</span><span id="Resolver-386"><a href="#Resolver-386"><span class="linenos">386</span></a>
</span><span id="Resolver-387"><a href="#Resolver-387"><span class="linenos">387</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span>
</span><span id="Resolver-388"><a href="#Resolver-388"><span class="linenos">388</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span>
</span><span id="Resolver-389"><a href="#Resolver-389"><span class="linenos">389</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span>
</span><span id="Resolver-390"><a href="#Resolver-390"><span class="linenos">390</span></a>
</span><span id="Resolver-391"><a href="#Resolver-391"><span class="linenos">391</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span>
</span><span id="Resolver-392"><a href="#Resolver-392"><span class="linenos">392</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span>
</span><span id="Resolver-393"><a href="#Resolver-393"><span class="linenos">393</span></a>
</span><span id="Resolver-394"><a href="#Resolver-394"><span class="linenos">394</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope&#39;s named selects</span>
</span><span id="Resolver-395"><a href="#Resolver-395"><span class="linenos">395</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span>
</span><span id="Resolver-396"><a href="#Resolver-396"><span class="linenos">396</span></a>
</span><span id="Resolver-397"><a href="#Resolver-397"><span class="linenos">397</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
</span><span id="Resolver-398"><a href="#Resolver-398"><span class="linenos">398</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="Resolver-399"><a href="#Resolver-399"><span class="linenos">399</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span>
</span><span id="Resolver-400"><a href="#Resolver-400"><span class="linenos">400</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span>
</span><span id="Resolver-401"><a href="#Resolver-401"><span class="linenos">401</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span>
</span><span id="Resolver-402"><a href="#Resolver-402"><span class="linenos">402</span></a> <span class="p">}</span>
</span><span id="Resolver-403"><a href="#Resolver-403"><span class="linenos">403</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span>
</span><span id="Resolver-404"><a href="#Resolver-404"><span class="linenos">404</span></a>
</span><span id="Resolver-405"><a href="#Resolver-405"><span class="linenos">405</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span>
</span><span id="Resolver-406"><a href="#Resolver-406"><span class="linenos">406</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Resolver-407"><a href="#Resolver-407"><span class="linenos">407</span></a><span class="sd"> Find all the unambiguous columns in sources.</span>
</span><span id="Resolver-408"><a href="#Resolver-408"><span class="linenos">408</span></a>
</span><span id="Resolver-409"><a href="#Resolver-409"><span class="linenos">409</span></a><span class="sd"> Args:</span>
</span><span id="Resolver-410"><a href="#Resolver-410"><span class="linenos">410</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span>
</span><span id="Resolver-411"><a href="#Resolver-411"><span class="linenos">411</span></a><span class="sd"> Returns:</span>
</span><span id="Resolver-412"><a href="#Resolver-412"><span class="linenos">412</span></a><span class="sd"> dict: Mapping of column name to source name</span>
</span><span id="Resolver-413"><a href="#Resolver-413"><span class="linenos">413</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Resolver-414"><a href="#Resolver-414"><span class="linenos">414</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span>
</span><span id="Resolver-415"><a href="#Resolver-415"><span class="linenos">415</span></a> <span class="k">return</span> <span class="p">{}</span>
</span><span id="Resolver-416"><a href="#Resolver-416"><span class="linenos">416</span></a>
</span><span id="Resolver-417"><a href="#Resolver-417"><span class="linenos">417</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
</span><span id="Resolver-418"><a href="#Resolver-418"><span class="linenos">418</span></a>
</span><span id="Resolver-419"><a href="#Resolver-419"><span class="linenos">419</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="Resolver-420"><a href="#Resolver-420"><span class="linenos">420</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span>
</span><span id="Resolver-421"><a href="#Resolver-421"><span class="linenos">421</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span>
</span><span id="Resolver-422"><a href="#Resolver-422"><span class="linenos">422</span></a>
</span><span id="Resolver-423"><a href="#Resolver-423"><span class="linenos">423</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
</span><span id="Resolver-424"><a href="#Resolver-424"><span class="linenos">424</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="Resolver-425"><a href="#Resolver-425"><span class="linenos">425</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span>
</span><span id="Resolver-426"><a href="#Resolver-426"><span class="linenos">426</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span>
</span><span id="Resolver-427"><a href="#Resolver-427"><span class="linenos">427</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span>
</span><span id="Resolver-428"><a href="#Resolver-428"><span class="linenos">428</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="Resolver-429"><a href="#Resolver-429"><span class="linenos">429</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span>
</span><span id="Resolver-430"><a href="#Resolver-430"><span class="linenos">430</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span>
</span><span id="Resolver-431"><a href="#Resolver-431"><span class="linenos">431</span></a>
</span><span id="Resolver-432"><a href="#Resolver-432"><span class="linenos">432</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span>
</span><span id="Resolver-433"><a href="#Resolver-433"><span class="linenos">433</span></a>
</span><span id="Resolver-434"><a href="#Resolver-434"><span class="linenos">434</span></a> <span class="nd">@staticmethod</span>
</span><span id="Resolver-435"><a href="#Resolver-435"><span class="linenos">435</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span>
</span><span id="Resolver-436"><a href="#Resolver-436"><span class="linenos">436</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Resolver-437"><a href="#Resolver-437"><span class="linenos">437</span></a><span class="sd"> Find the unique columns in a list of columns.</span>
</span><span id="Resolver-438"><a href="#Resolver-438"><span class="linenos">438</span></a>
</span><span id="Resolver-439"><a href="#Resolver-439"><span class="linenos">439</span></a><span class="sd"> Example:</span>
</span><span id="Resolver-440"><a href="#Resolver-440"><span class="linenos">440</span></a><span class="sd"> &gt;&gt;&gt; sorted(Resolver._find_unique_columns([&quot;a&quot;, &quot;b&quot;, &quot;b&quot;, &quot;c&quot;]))</span>
</span><span id="Resolver-441"><a href="#Resolver-441"><span class="linenos">441</span></a><span class="sd"> [&#39;a&#39;, &#39;c&#39;]</span>
</span><span id="Resolver-442"><a href="#Resolver-442"><span class="linenos">442</span></a>
</span><span id="Resolver-443"><a href="#Resolver-443"><span class="linenos">443</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span>
</span><span id="Resolver-444"><a href="#Resolver-444"><span class="linenos">444</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Resolver-445"><a href="#Resolver-445"><span class="linenos">445</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="Resolver-446"><a href="#Resolver-446"><span class="linenos">446</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span>
</span><span id="Resolver-447"><a href="#Resolver-447"><span class="linenos">447</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span>
</span><span id="Resolver-448"><a href="#Resolver-448"><span class="linenos">448</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span>
</span></pre></div>
<div class="docstring"><p>Helper for resolving columns.</p>
<p>This is a class so we can lazily load some things and easily share them across functions.</p>
</div>
<div id="Resolver.__init__" class="classattr">
<input id="Resolver.__init__-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<div class="attr function">
<span class="name">Resolver</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">scope</span>, </span><span class="param"><span class="n">schema</span></span>)</span>
<label class="view-source-button" for="Resolver.__init__-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Resolver.__init__"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.__init__-337"><a href="#Resolver.__init__-337"><span class="linenos">337</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span>
</span><span id="Resolver.__init__-338"><a href="#Resolver.__init__-338"><span class="linenos">338</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span>
</span><span id="Resolver.__init__-339"><a href="#Resolver.__init__-339"><span class="linenos">339</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span>
</span><span id="Resolver.__init__-340"><a href="#Resolver.__init__-340"><span class="linenos">340</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="Resolver.__init__-341"><a href="#Resolver.__init__-341"><span class="linenos">341</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span>
</span><span id="Resolver.__init__-342"><a href="#Resolver.__init__-342"><span class="linenos">342</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span>
</span></pre></div>
</div>
<div id="Resolver.get_table" class="classattr">
<input id="Resolver.get_table-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">get_table</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>:</span></span>
<label class="view-source-button" for="Resolver.get_table-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Resolver.get_table"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_table-344"><a href="#Resolver.get_table-344"><span class="linenos">344</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span>
</span><span id="Resolver.get_table-345"><a href="#Resolver.get_table-345"><span class="linenos">345</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="Resolver.get_table-346"><a href="#Resolver.get_table-346"><span class="linenos">346</span></a><span class="sd"> Get the table for a column name.</span>
</span><span id="Resolver.get_table-347"><a href="#Resolver.get_table-347"><span class="linenos">347</span></a>
</span><span id="Resolver.get_table-348"><a href="#Resolver.get_table-348"><span class="linenos">348</span></a><span class="sd"> Args:</span>
</span><span id="Resolver.get_table-349"><a href="#Resolver.get_table-349"><span class="linenos">349</span></a><span class="sd"> column_name: The column name to find the table for.</span>
</span><span id="Resolver.get_table-350"><a href="#Resolver.get_table-350"><span class="linenos">350</span></a><span class="sd"> Returns:</span>
</span><span id="Resolver.get_table-351"><a href="#Resolver.get_table-351"><span class="linenos">351</span></a><span class="sd"> The table name if it can be found/inferred.</span>
</span><span id="Resolver.get_table-352"><a href="#Resolver.get_table-352"><span class="linenos">352</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="Resolver.get_table-353"><a href="#Resolver.get_table-353"><span class="linenos">353</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="Resolver.get_table-354"><a href="#Resolver.get_table-354"><span class="linenos">354</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span>
</span><span id="Resolver.get_table-355"><a href="#Resolver.get_table-355"><span class="linenos">355</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span>
</span><span id="Resolver.get_table-356"><a href="#Resolver.get_table-356"><span class="linenos">356</span></a> <span class="p">)</span>
</span><span id="Resolver.get_table-357"><a href="#Resolver.get_table-357"><span class="linenos">357</span></a>
</span><span id="Resolver.get_table-358"><a href="#Resolver.get_table-358"><span class="linenos">358</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span>
</span><span id="Resolver.get_table-359"><a href="#Resolver.get_table-359"><span class="linenos">359</span></a>
</span><span id="Resolver.get_table-360"><a href="#Resolver.get_table-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span><span class="p">:</span>
</span><span id="Resolver.get_table-361"><a href="#Resolver.get_table-361"><span class="linenos">361</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span>
</span><span id="Resolver.get_table-362"><a href="#Resolver.get_table-362"><span class="linenos">362</span></a> <span class="n">source</span>
</span><span id="Resolver.get_table-363"><a href="#Resolver.get_table-363"><span class="linenos">363</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
</span><span id="Resolver.get_table-364"><a href="#Resolver.get_table-364"><span class="linenos">364</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">&quot;*&quot;</span> <span class="ow">in</span> <span class="n">columns</span>
</span><span id="Resolver.get_table-365"><a href="#Resolver.get_table-365"><span class="linenos">365</span></a> <span class="p">)</span>
</span><span id="Resolver.get_table-366"><a href="#Resolver.get_table-366"><span class="linenos">366</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
</span><span id="Resolver.get_table-367"><a href="#Resolver.get_table-367"><span class="linenos">367</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="Resolver.get_table-368"><a href="#Resolver.get_table-368"><span class="linenos">368</span></a>
</span><span id="Resolver.get_table-369"><a href="#Resolver.get_table-369"><span class="linenos">369</span></a> <span class="k">return</span> <span class="n">table</span>
</span></pre></div>
<div class="docstring"><p>Get the table for a column name.</p>
<h6 id="arguments">Arguments:</h6>
<ul>
<li><strong>column_name:</strong> The column name to find the table for.</li>
</ul>
<h6 id="returns">Returns:</h6>
<blockquote>
<p>The table name if it can be found/inferred.</p>
</blockquote>
</div>
</div>
<div id="Resolver.all_columns" class="classattr">
<div class="attr variable">
<span class="name">all_columns</span>
</div>
<a class="headerlink" href="#Resolver.all_columns"></a>
<div class="docstring"><p>All available columns of all sources in this scope</p>
</div>
</div>
<div id="Resolver.get_source_columns" class="classattr">
<input id="Resolver.get_source_columns-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">get_source_columns</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">name</span>, </span><span class="param"><span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span></span><span class="return-annotation">):</span></span>
<label class="view-source-button" for="Resolver.get_source_columns-view-source"><span>View Source</span></label>
</div>
<a class="headerlink" href="#Resolver.get_source_columns"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_source_columns-380"><a href="#Resolver.get_source_columns-380"><span class="linenos">380</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
</span><span id="Resolver.get_source_columns-381"><a href="#Resolver.get_source_columns-381"><span class="linenos">381</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Resolve the source columns for a given source `name`&quot;&quot;&quot;</span>
</span><span id="Resolver.get_source_columns-382"><a href="#Resolver.get_source_columns-382"><span class="linenos">382</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span>
</span><span id="Resolver.get_source_columns-383"><a href="#Resolver.get_source_columns-383"><span class="linenos">383</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</span><span id="Resolver.get_source_columns-384"><a href="#Resolver.get_source_columns-384"><span class="linenos">384</span></a>
</span><span id="Resolver.get_source_columns-385"><a href="#Resolver.get_source_columns-385"><span class="linenos">385</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
</span><span id="Resolver.get_source_columns-386"><a href="#Resolver.get_source_columns-386"><span class="linenos">386</span></a>
</span><span id="Resolver.get_source_columns-387"><a href="#Resolver.get_source_columns-387"><span class="linenos">387</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span>
</span><span id="Resolver.get_source_columns-388"><a href="#Resolver.get_source_columns-388"><span class="linenos">388</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span>
</span><span id="Resolver.get_source_columns-389"><a href="#Resolver.get_source_columns-389"><span class="linenos">389</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span>
</span><span id="Resolver.get_source_columns-390"><a href="#Resolver.get_source_columns-390"><span class="linenos">390</span></a>
</span><span id="Resolver.get_source_columns-391"><a href="#Resolver.get_source_columns-391"><span class="linenos">391</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span>
</span><span id="Resolver.get_source_columns-392"><a href="#Resolver.get_source_columns-392"><span class="linenos">392</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span>
</span><span id="Resolver.get_source_columns-393"><a href="#Resolver.get_source_columns-393"><span class="linenos">393</span></a>
</span><span id="Resolver.get_source_columns-394"><a href="#Resolver.get_source_columns-394"><span class="linenos">394</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope&#39;s named selects</span>
</span><span id="Resolver.get_source_columns-395"><a href="#Resolver.get_source_columns-395"><span class="linenos">395</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span>
</span></pre></div>
<div class="docstring"><p>Resolve the source columns for a given source <code>name</code></p>
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