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sqlglot.dialects.sqlite

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  1from __future__ import annotations
  2
  3import typing as t
  4
  5from sqlglot import exp, generator, parser, tokens, transforms
  6from sqlglot.dialects.dialect import (
  7    Dialect,
  8    NormalizationStrategy,
  9    any_value_to_max_sql,
 10    arrow_json_extract_scalar_sql,
 11    arrow_json_extract_sql,
 12    concat_to_dpipe_sql,
 13    count_if_to_sum,
 14    no_ilike_sql,
 15    no_pivot_sql,
 16    no_tablesample_sql,
 17    no_trycast_sql,
 18    rename_func,
 19)
 20from sqlglot.tokens import TokenType
 21
 22
 23def _date_add_sql(self: SQLite.Generator, expression: exp.DateAdd) -> str:
 24    modifier = expression.expression
 25    modifier = modifier.name if modifier.is_string else self.sql(modifier)
 26    unit = expression.args.get("unit")
 27    modifier = f"'{modifier} {unit.name}'" if unit else f"'{modifier}'"
 28    return self.func("DATE", expression.this, modifier)
 29
 30
 31def _transform_create(expression: exp.Expression) -> exp.Expression:
 32    """Move primary key to a column and enforce auto_increment on primary keys."""
 33    schema = expression.this
 34
 35    if isinstance(expression, exp.Create) and isinstance(schema, exp.Schema):
 36        defs = {}
 37        primary_key = None
 38
 39        for e in schema.expressions:
 40            if isinstance(e, exp.ColumnDef):
 41                defs[e.name] = e
 42            elif isinstance(e, exp.PrimaryKey):
 43                primary_key = e
 44
 45        if primary_key and len(primary_key.expressions) == 1:
 46            column = defs[primary_key.expressions[0].name]
 47            column.append(
 48                "constraints", exp.ColumnConstraint(kind=exp.PrimaryKeyColumnConstraint())
 49            )
 50            schema.expressions.remove(primary_key)
 51        else:
 52            for column in defs.values():
 53                auto_increment = None
 54                for constraint in column.constraints:
 55                    if isinstance(constraint.kind, exp.PrimaryKeyColumnConstraint):
 56                        break
 57                    if isinstance(constraint.kind, exp.AutoIncrementColumnConstraint):
 58                        auto_increment = constraint
 59                if auto_increment:
 60                    column.constraints.remove(auto_increment)
 61
 62    return expression
 63
 64
 65class SQLite(Dialect):
 66    # https://sqlite.org/forum/forumpost/5e575586ac5c711b?raw
 67    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
 68    SUPPORTS_SEMI_ANTI_JOIN = False
 69    TYPED_DIVISION = True
 70    SAFE_DIVISION = True
 71
 72    class Tokenizer(tokens.Tokenizer):
 73        IDENTIFIERS = ['"', ("[", "]"), "`"]
 74        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]
 75
 76    class Parser(parser.Parser):
 77        FUNCTIONS = {
 78            **parser.Parser.FUNCTIONS,
 79            "EDITDIST3": exp.Levenshtein.from_arg_list,
 80        }
 81
 82    class Generator(generator.Generator):
 83        JOIN_HINTS = False
 84        TABLE_HINTS = False
 85        QUERY_HINTS = False
 86        NVL2_SUPPORTED = False
 87
 88        TYPE_MAPPING = {
 89            **generator.Generator.TYPE_MAPPING,
 90            exp.DataType.Type.BOOLEAN: "INTEGER",
 91            exp.DataType.Type.TINYINT: "INTEGER",
 92            exp.DataType.Type.SMALLINT: "INTEGER",
 93            exp.DataType.Type.INT: "INTEGER",
 94            exp.DataType.Type.BIGINT: "INTEGER",
 95            exp.DataType.Type.FLOAT: "REAL",
 96            exp.DataType.Type.DOUBLE: "REAL",
 97            exp.DataType.Type.DECIMAL: "REAL",
 98            exp.DataType.Type.CHAR: "TEXT",
 99            exp.DataType.Type.NCHAR: "TEXT",
100            exp.DataType.Type.VARCHAR: "TEXT",
101            exp.DataType.Type.NVARCHAR: "TEXT",
102            exp.DataType.Type.BINARY: "BLOB",
103            exp.DataType.Type.VARBINARY: "BLOB",
104        }
105
106        TOKEN_MAPPING = {
107            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
108        }
109
110        TRANSFORMS = {
111            **generator.Generator.TRANSFORMS,
112            exp.AnyValue: any_value_to_max_sql,
113            exp.Concat: concat_to_dpipe_sql,
114            exp.CountIf: count_if_to_sum,
115            exp.Create: transforms.preprocess([_transform_create]),
116            exp.CurrentDate: lambda *_: "CURRENT_DATE",
117            exp.CurrentTime: lambda *_: "CURRENT_TIME",
118            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
119            exp.DateAdd: _date_add_sql,
120            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
121            exp.ILike: no_ilike_sql,
122            exp.JSONExtract: arrow_json_extract_sql,
123            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
124            exp.JSONBExtract: arrow_json_extract_sql,
125            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
126            exp.Levenshtein: rename_func("EDITDIST3"),
127            exp.LogicalOr: rename_func("MAX"),
128            exp.LogicalAnd: rename_func("MIN"),
129            exp.Pivot: no_pivot_sql,
130            exp.Select: transforms.preprocess(
131                [
132                    transforms.eliminate_distinct_on,
133                    transforms.eliminate_qualify,
134                    transforms.eliminate_semi_and_anti_joins,
135                ]
136            ),
137            exp.TableSample: no_tablesample_sql,
138            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
139            exp.TryCast: no_trycast_sql,
140        }
141
142        PROPERTIES_LOCATION = {
143            k: exp.Properties.Location.UNSUPPORTED
144            for k, v in generator.Generator.PROPERTIES_LOCATION.items()
145        }
146
147        LIMIT_FETCH = "LIMIT"
148
149        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
150            if expression.is_type("date"):
151                return self.func("DATE", expression.this)
152
153            return super().cast_sql(expression)
154
155        def datediff_sql(self, expression: exp.DateDiff) -> str:
156            unit = expression.args.get("unit")
157            unit = unit.name.upper() if unit else "DAY"
158
159            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
160
161            if unit == "MONTH":
162                sql = f"{sql} / 30.0"
163            elif unit == "YEAR":
164                sql = f"{sql} / 365.0"
165            elif unit == "HOUR":
166                sql = f"{sql} * 24.0"
167            elif unit == "MINUTE":
168                sql = f"{sql} * 1440.0"
169            elif unit == "SECOND":
170                sql = f"{sql} * 86400.0"
171            elif unit == "MILLISECOND":
172                sql = f"{sql} * 86400000.0"
173            elif unit == "MICROSECOND":
174                sql = f"{sql} * 86400000000.0"
175            elif unit == "NANOSECOND":
176                sql = f"{sql} * 8640000000000.0"
177            else:
178                self.unsupported("DATEDIFF unsupported for '{unit}'.")
179
180            return f"CAST({sql} AS INTEGER)"
181
182        # https://www.sqlite.org/lang_aggfunc.html#group_concat
183        def groupconcat_sql(self, expression: exp.GroupConcat) -> str:
184            this = expression.this
185            distinct = expression.find(exp.Distinct)
186
187            if distinct:
188                this = distinct.expressions[0]
189                distinct_sql = "DISTINCT "
190            else:
191                distinct_sql = ""
192
193            if isinstance(expression.this, exp.Order):
194                self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
195                if expression.this.this and not distinct:
196                    this = expression.this.this
197
198            separator = expression.args.get("separator")
199            return f"GROUP_CONCAT({distinct_sql}{self.format_args(this, separator)})"
200
201        def least_sql(self, expression: exp.Least) -> str:
202            if len(expression.expressions) > 1:
203                return rename_func("MIN")(self, expression)
204
205            return self.sql(expression, "this")
206
207        def transaction_sql(self, expression: exp.Transaction) -> str:
208            this = expression.this
209            this = f" {this}" if this else ""
210            return f"BEGIN{this} TRANSACTION"

class SQLite(sqlglot.dialects.dialect.Dialect): View Source

 66class SQLite(Dialect):
 67    # https://sqlite.org/forum/forumpost/5e575586ac5c711b?raw
 68    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
 69    SUPPORTS_SEMI_ANTI_JOIN = False
 70    TYPED_DIVISION = True
 71    SAFE_DIVISION = True
 72
 73    class Tokenizer(tokens.Tokenizer):
 74        IDENTIFIERS = ['"', ("[", "]"), "`"]
 75        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]
 76
 77    class Parser(parser.Parser):
 78        FUNCTIONS = {
 79            **parser.Parser.FUNCTIONS,
 80            "EDITDIST3": exp.Levenshtein.from_arg_list,
 81        }
 82
 83    class Generator(generator.Generator):
 84        JOIN_HINTS = False
 85        TABLE_HINTS = False
 86        QUERY_HINTS = False
 87        NVL2_SUPPORTED = False
 88
 89        TYPE_MAPPING = {
 90            **generator.Generator.TYPE_MAPPING,
 91            exp.DataType.Type.BOOLEAN: "INTEGER",
 92            exp.DataType.Type.TINYINT: "INTEGER",
 93            exp.DataType.Type.SMALLINT: "INTEGER",
 94            exp.DataType.Type.INT: "INTEGER",
 95            exp.DataType.Type.BIGINT: "INTEGER",
 96            exp.DataType.Type.FLOAT: "REAL",
 97            exp.DataType.Type.DOUBLE: "REAL",
 98            exp.DataType.Type.DECIMAL: "REAL",
 99            exp.DataType.Type.CHAR: "TEXT",
100            exp.DataType.Type.NCHAR: "TEXT",
101            exp.DataType.Type.VARCHAR: "TEXT",
102            exp.DataType.Type.NVARCHAR: "TEXT",
103            exp.DataType.Type.BINARY: "BLOB",
104            exp.DataType.Type.VARBINARY: "BLOB",
105        }
106
107        TOKEN_MAPPING = {
108            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
109        }
110
111        TRANSFORMS = {
112            **generator.Generator.TRANSFORMS,
113            exp.AnyValue: any_value_to_max_sql,
114            exp.Concat: concat_to_dpipe_sql,
115            exp.CountIf: count_if_to_sum,
116            exp.Create: transforms.preprocess([_transform_create]),
117            exp.CurrentDate: lambda *_: "CURRENT_DATE",
118            exp.CurrentTime: lambda *_: "CURRENT_TIME",
119            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
120            exp.DateAdd: _date_add_sql,
121            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
122            exp.ILike: no_ilike_sql,
123            exp.JSONExtract: arrow_json_extract_sql,
124            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
125            exp.JSONBExtract: arrow_json_extract_sql,
126            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
127            exp.Levenshtein: rename_func("EDITDIST3"),
128            exp.LogicalOr: rename_func("MAX"),
129            exp.LogicalAnd: rename_func("MIN"),
130            exp.Pivot: no_pivot_sql,
131            exp.Select: transforms.preprocess(
132                [
133                    transforms.eliminate_distinct_on,
134                    transforms.eliminate_qualify,
135                    transforms.eliminate_semi_and_anti_joins,
136                ]
137            ),
138            exp.TableSample: no_tablesample_sql,
139            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
140            exp.TryCast: no_trycast_sql,
141        }
142
143        PROPERTIES_LOCATION = {
144            k: exp.Properties.Location.UNSUPPORTED
145            for k, v in generator.Generator.PROPERTIES_LOCATION.items()
146        }
147
148        LIMIT_FETCH = "LIMIT"
149
150        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
151            if expression.is_type("date"):
152                return self.func("DATE", expression.this)
153
154            return super().cast_sql(expression)
155
156        def datediff_sql(self, expression: exp.DateDiff) -> str:
157            unit = expression.args.get("unit")
158            unit = unit.name.upper() if unit else "DAY"
159
160            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
161
162            if unit == "MONTH":
163                sql = f"{sql} / 30.0"
164            elif unit == "YEAR":
165                sql = f"{sql} / 365.0"
166            elif unit == "HOUR":
167                sql = f"{sql} * 24.0"
168            elif unit == "MINUTE":
169                sql = f"{sql} * 1440.0"
170            elif unit == "SECOND":
171                sql = f"{sql} * 86400.0"
172            elif unit == "MILLISECOND":
173                sql = f"{sql} * 86400000.0"
174            elif unit == "MICROSECOND":
175                sql = f"{sql} * 86400000000.0"
176            elif unit == "NANOSECOND":
177                sql = f"{sql} * 8640000000000.0"
178            else:
179                self.unsupported("DATEDIFF unsupported for '{unit}'.")
180
181            return f"CAST({sql} AS INTEGER)"
182
183        # https://www.sqlite.org/lang_aggfunc.html#group_concat
184        def groupconcat_sql(self, expression: exp.GroupConcat) -> str:
185            this = expression.this
186            distinct = expression.find(exp.Distinct)
187
188            if distinct:
189                this = distinct.expressions[0]
190                distinct_sql = "DISTINCT "
191            else:
192                distinct_sql = ""
193
194            if isinstance(expression.this, exp.Order):
195                self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
196                if expression.this.this and not distinct:
197                    this = expression.this.this
198
199            separator = expression.args.get("separator")
200            return f"GROUP_CONCAT({distinct_sql}{self.format_args(this, separator)})"
201
202        def least_sql(self, expression: exp.Least) -> str:
203            if len(expression.expressions) > 1:
204                return rename_func("MIN")(self, expression)
205
206            return self.sql(expression, "this")
207
208        def transaction_sql(self, expression: exp.Transaction) -> str:
209            this = expression.this
210            this = f" {this}" if this else ""
211            return f"BEGIN{this} TRANSACTION"

NORMALIZATION_STRATEGY = <NormalizationStrategy.CASE_INSENSITIVE: 'CASE_INSENSITIVE'>

SUPPORTS_SEMI_ANTI_JOIN = False

TYPED_DIVISION = True

SAFE_DIVISION = True

tokenizer_class = <class 'SQLite.Tokenizer'>

parser_class = <class 'SQLite.Parser'>

generator_class = <class 'SQLite.Generator'>

TIME_TRIE: Dict = {}

FORMAT_TRIE: Dict = {}

INVERSE_TIME_MAPPING: Dict[str, str] = {}

INVERSE_TIME_TRIE: Dict = {}

INVERSE_ESCAPE_SEQUENCES: Dict[str, str] = {}

QUOTE_START = "'"

QUOTE_END = "'"

IDENTIFIER_START = '"'

IDENTIFIER_END = '"'

BIT_START: Optional[str] = None

BIT_END: Optional[str] = None

HEX_START: Optional[str] = "x'"

HEX_END: Optional[str] = "'"

BYTE_START: Optional[str] = None

BYTE_END: Optional[str] = None

Inherited Members

sqlglot.dialects.dialect.Dialect: Dialect; INDEX_OFFSET; UNNEST_COLUMN_ONLY; ALIAS_POST_TABLESAMPLE; IDENTIFIERS_CAN_START_WITH_DIGIT; DPIPE_IS_STRING_CONCAT; STRICT_STRING_CONCAT; SUPPORTS_USER_DEFINED_TYPES; NORMALIZE_FUNCTIONS; LOG_BASE_FIRST; NULL_ORDERING; CONCAT_COALESCE; DATE_FORMAT; DATEINT_FORMAT; TIME_FORMAT; TIME_MAPPING; FORMAT_MAPPING; ESCAPE_SEQUENCES; PSEUDOCOLUMNS; get_or_raise; format_time; normalize_identifier; case_sensitive; can_identify; quote_identifier; parse; parse_into; generate; transpile; tokenize; tokenizer; parser; generator

class SQLite.Tokenizer(sqlglot.tokens.Tokenizer): View Source

73    class Tokenizer(tokens.Tokenizer):
74        IDENTIFIERS = ['"', ("[", "]"), "`"]
75        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]

IDENTIFIERS = ['"', ('[', ']'), '`']

HEX_STRINGS = [("x'", "'"), ("X'", "'"), ('0x', ''), ('0X', '')]

Inherited Members

sqlglot.tokens.Tokenizer: Tokenizer; SINGLE_TOKENS; BIT_STRINGS; BYTE_STRINGS; RAW_STRINGS; HEREDOC_STRINGS; IDENTIFIER_ESCAPES; QUOTES; STRING_ESCAPES; VAR_SINGLE_TOKENS; KEYWORDS; WHITE_SPACE; COMMANDS; COMMAND_PREFIX_TOKENS; NUMERIC_LITERALS; COMMENTS; dialect; reset; tokenize; peek; tokenize_rs; size; sql; tokens

class SQLite.Parser(sqlglot.parser.Parser): View Source

77    class Parser(parser.Parser):
78        FUNCTIONS = {
79            **parser.Parser.FUNCTIONS,
80            "EDITDIST3": exp.Levenshtein.from_arg_list,
81        }

Parser consumes a list of tokens produced by the Tokenizer and produces a parsed syntax tree.

Arguments:

error_level: The desired error level. Default: ErrorLevel.IMMEDIATE
error_message_context: Determines the amount of context to capture from a query string when displaying the error message (in number of characters). Default: 100
max_errors: Maximum number of error messages to include in a raised ParseError. This is only relevant if error_level is ErrorLevel.RAISE. Default: 3

FUNCTIONS = {'ABS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Abs'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Array'>>, 'ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayJoin'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySort'>>, 'ARRAY_SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySum'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'ARRAY_UNIQUE_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CHR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'COALESCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'COUNT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Count'>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'CURRENT_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'CURRENT_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDatetime'>>, 'CURRENT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Date'>>, 'DATE_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateAdd'>>, 'DATEDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateSub'>>, 'DATE_TO_DATE_STR': <function Parser.<lambda>>, 'DATE_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateToDi'>>, 'DATE_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateTrunc'>>, 'DATETIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeAdd'>>, 'DATETIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeDiff'>>, 'DATETIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeSub'>>, 'DATETIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeTrunc'>>, 'DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Day'>>, 'DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAYOFMONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAY_OF_WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FIRST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.First'>>, 'FLATTEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Flatten'>>, 'FLOOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Floor'>>, 'FROM_BASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase'>>, 'FROM_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'GREATEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Greatest'>>, 'GROUP_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GroupConcat'>>, 'HEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hex'>>, 'HLL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hll'>>, 'IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'INITCAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Initcap'>>, 'IS_INF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'ISINF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'IS_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'J_S_O_N_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArray'>>, 'J_S_O_N_ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayAgg'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'JSON_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtract'>>, 'JSON_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtractScalar'>>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, 'LAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Last'>>, 'LAST_DATE_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDateOfMonth'>>, 'LEAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Least'>>, 'LEFT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Left'>>, 'LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function parse_logarithm>, 'LOG10': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log10'>>, 'LOG2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log2'>>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOLOR_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'LOWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'LCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'MD5': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5'>>, 'MD5_DIGEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Map'>>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Month'>>, 'MONTHS_BETWEEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MonthsBetween'>>, 'NEXT_VALUE_FOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NextValueFor'>>, 'NULLIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nullif'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PARSE_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'JSON_PARSE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POSEXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PosexplodeOuter'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'PREDICT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Predict'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'RANGE_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RangeN'>>, 'READ_CSV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ReadCSV'>>, 'REDUCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Reduce'>>, 'REGEXP_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtract'>>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpReplace'>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SORT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDDEV_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevPop'>>, 'STDDEV_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevSamp'>>, 'STR_POSITION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToDate'>>, 'STR_TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToMap'>>, 'STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToTime'>>, 'STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToUnix'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeDiff'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Timestamp'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDays'>>, 'TRANSFORM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Transform'>>, 'TRIM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Trim'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsDiff'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNIX_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToStr'>>, 'UNIX_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTime'>>, 'UNIX_TO_TIME_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTimeStr'>>, 'UPPER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'VAR_MAP': <function parse_var_map>, 'VARIANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'VAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Week'>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WHEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.When'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Year'>>, 'GLOB': <function Parser.<lambda>>, 'LIKE': <function parse_like>, 'EDITDIST3': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>}

TABLE_ALIAS_TOKENS = {<TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.VAR: 'VAR'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.DATE: 'DATE'>, <TokenType.CASE: 'CASE'>, <TokenType.MONEY: 'MONEY'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.TEXT: 'TEXT'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.UUID: 'UUID'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.FIRST: 'FIRST'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.INT128: 'INT128'>, <TokenType.ALL: 'ALL'>, <TokenType.SET: 'SET'>, <TokenType.JSONB: 'JSONB'>, <TokenType.CACHE: 'CACHE'>, <TokenType.NULL: 'NULL'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.ROW: 'ROW'>, <TokenType.BIT: 'BIT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.FALSE: 'FALSE'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.NEXT: 'NEXT'>, <TokenType.SOME: 'SOME'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.ASC: 'ASC'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.XML: 'XML'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.BINARY: 'BINARY'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.JSON: 'JSON'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.UINT: 'UINT'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.USE: 'USE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.UINT256: 'UINT256'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.DESC: 'DESC'>, <TokenType.ANY: 'ANY'>, <TokenType.INET: 'INET'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.MAP: 'MAP'>, <TokenType.KILL: 'KILL'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.TIME: 'TIME'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.DIV: 'DIV'>, <TokenType.IS: 'IS'>, <TokenType.KEEP: 'KEEP'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.FILTER: 'FILTER'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.INT256: 'INT256'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ANTI: 'ANTI'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.TRUE: 'TRUE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.END: 'END'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UINT128: 'UINT128'>, <TokenType.TOP: 'TOP'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DELETE: 'DELETE'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.INT: 'INT'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.VIEW: 'VIEW'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.SEMI: 'SEMI'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.USMALLINT: 'USMALLINT'>}

SHOW_TRIE: Dict = {}

SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}}

Inherited Members

sqlglot.parser.Parser: Parser; NO_PAREN_FUNCTIONS; STRUCT_TYPE_TOKENS; NESTED_TYPE_TOKENS; ENUM_TYPE_TOKENS; TYPE_TOKENS; SIGNED_TO_UNSIGNED_TYPE_TOKEN; SUBQUERY_PREDICATES; RESERVED_TOKENS; DB_CREATABLES; CREATABLES; ID_VAR_TOKENS; INTERVAL_VARS; COMMENT_TABLE_ALIAS_TOKENS; UPDATE_ALIAS_TOKENS; TRIM_TYPES; FUNC_TOKENS; CONJUNCTION; EQUALITY; COMPARISON; BITWISE; TERM; FACTOR; EXPONENT; TIMES; TIMESTAMPS; SET_OPERATIONS; JOIN_METHODS; JOIN_SIDES; JOIN_KINDS; JOIN_HINTS; LAMBDAS; COLUMN_OPERATORS; EXPRESSION_PARSERS; STATEMENT_PARSERS; UNARY_PARSERS; PRIMARY_PARSERS; PLACEHOLDER_PARSERS; RANGE_PARSERS; PROPERTY_PARSERS; CONSTRAINT_PARSERS; ALTER_PARSERS; SCHEMA_UNNAMED_CONSTRAINTS; NO_PAREN_FUNCTION_PARSERS; INVALID_FUNC_NAME_TOKENS; FUNCTIONS_WITH_ALIASED_ARGS; FUNCTION_PARSERS; QUERY_MODIFIER_PARSERS; SET_PARSERS; SHOW_PARSERS; TYPE_LITERAL_PARSERS; MODIFIABLES; DDL_SELECT_TOKENS; PRE_VOLATILE_TOKENS; TRANSACTION_KIND; TRANSACTION_CHARACTERISTICS; INSERT_ALTERNATIVES; CLONE_KEYWORDS; HISTORICAL_DATA_KIND; OPCLASS_FOLLOW_KEYWORDS; OPTYPE_FOLLOW_TOKENS; TABLE_INDEX_HINT_TOKENS; WINDOW_ALIAS_TOKENS; WINDOW_BEFORE_PAREN_TOKENS; WINDOW_SIDES; FETCH_TOKENS; ADD_CONSTRAINT_TOKENS; DISTINCT_TOKENS; NULL_TOKENS; UNNEST_OFFSET_ALIAS_TOKENS; STRICT_CAST; PREFIXED_PIVOT_COLUMNS; IDENTIFY_PIVOT_STRINGS; LOG_DEFAULTS_TO_LN; ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN; TABLESAMPLE_CSV; SET_REQUIRES_ASSIGNMENT_DELIMITER; TRIM_PATTERN_FIRST; MODIFIERS_ATTACHED_TO_UNION; UNION_MODIFIERS; error_level; error_message_context; max_errors; dialect; reset; parse; parse_into; check_errors; raise_error; expression; validate_expression; errors; sql

class SQLite.Generator(sqlglot.generator.Generator): View Source

 83    class Generator(generator.Generator):
 84        JOIN_HINTS = False
 85        TABLE_HINTS = False
 86        QUERY_HINTS = False
 87        NVL2_SUPPORTED = False
 88
 89        TYPE_MAPPING = {
 90            **generator.Generator.TYPE_MAPPING,
 91            exp.DataType.Type.BOOLEAN: "INTEGER",
 92            exp.DataType.Type.TINYINT: "INTEGER",
 93            exp.DataType.Type.SMALLINT: "INTEGER",
 94            exp.DataType.Type.INT: "INTEGER",
 95            exp.DataType.Type.BIGINT: "INTEGER",
 96            exp.DataType.Type.FLOAT: "REAL",
 97            exp.DataType.Type.DOUBLE: "REAL",
 98            exp.DataType.Type.DECIMAL: "REAL",
 99            exp.DataType.Type.CHAR: "TEXT",
100            exp.DataType.Type.NCHAR: "TEXT",
101            exp.DataType.Type.VARCHAR: "TEXT",
102            exp.DataType.Type.NVARCHAR: "TEXT",
103            exp.DataType.Type.BINARY: "BLOB",
104            exp.DataType.Type.VARBINARY: "BLOB",
105        }
106
107        TOKEN_MAPPING = {
108            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
109        }
110
111        TRANSFORMS = {
112            **generator.Generator.TRANSFORMS,
113            exp.AnyValue: any_value_to_max_sql,
114            exp.Concat: concat_to_dpipe_sql,
115            exp.CountIf: count_if_to_sum,
116            exp.Create: transforms.preprocess([_transform_create]),
117            exp.CurrentDate: lambda *_: "CURRENT_DATE",
118            exp.CurrentTime: lambda *_: "CURRENT_TIME",
119            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
120            exp.DateAdd: _date_add_sql,
121            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
122            exp.ILike: no_ilike_sql,
123            exp.JSONExtract: arrow_json_extract_sql,
124            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
125            exp.JSONBExtract: arrow_json_extract_sql,
126            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
127            exp.Levenshtein: rename_func("EDITDIST3"),
128            exp.LogicalOr: rename_func("MAX"),
129            exp.LogicalAnd: rename_func("MIN"),
130            exp.Pivot: no_pivot_sql,
131            exp.Select: transforms.preprocess(
132                [
133                    transforms.eliminate_distinct_on,
134                    transforms.eliminate_qualify,
135                    transforms.eliminate_semi_and_anti_joins,
136                ]
137            ),
138            exp.TableSample: no_tablesample_sql,
139            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
140            exp.TryCast: no_trycast_sql,
141        }
142
143        PROPERTIES_LOCATION = {
144            k: exp.Properties.Location.UNSUPPORTED
145            for k, v in generator.Generator.PROPERTIES_LOCATION.items()
146        }
147
148        LIMIT_FETCH = "LIMIT"
149
150        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
151            if expression.is_type("date"):
152                return self.func("DATE", expression.this)
153
154            return super().cast_sql(expression)
155
156        def datediff_sql(self, expression: exp.DateDiff) -> str:
157            unit = expression.args.get("unit")
158            unit = unit.name.upper() if unit else "DAY"
159
160            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
161
162            if unit == "MONTH":
163                sql = f"{sql} / 30.0"
164            elif unit == "YEAR":
165                sql = f"{sql} / 365.0"
166            elif unit == "HOUR":
167                sql = f"{sql} * 24.0"
168            elif unit == "MINUTE":
169                sql = f"{sql} * 1440.0"
170            elif unit == "SECOND":
171                sql = f"{sql} * 86400.0"
172            elif unit == "MILLISECOND":
173                sql = f"{sql} * 86400000.0"
174            elif unit == "MICROSECOND":
175                sql = f"{sql} * 86400000000.0"
176            elif unit == "NANOSECOND":
177                sql = f"{sql} * 8640000000000.0"
178            else:
179                self.unsupported("DATEDIFF unsupported for '{unit}'.")
180
181            return f"CAST({sql} AS INTEGER)"
182
183        # https://www.sqlite.org/lang_aggfunc.html#group_concat
184        def groupconcat_sql(self, expression: exp.GroupConcat) -> str:
185            this = expression.this
186            distinct = expression.find(exp.Distinct)
187
188            if distinct:
189                this = distinct.expressions[0]
190                distinct_sql = "DISTINCT "
191            else:
192                distinct_sql = ""
193
194            if isinstance(expression.this, exp.Order):
195                self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
196                if expression.this.this and not distinct:
197                    this = expression.this.this
198
199            separator = expression.args.get("separator")
200            return f"GROUP_CONCAT({distinct_sql}{self.format_args(this, separator)})"
201
202        def least_sql(self, expression: exp.Least) -> str:
203            if len(expression.expressions) > 1:
204                return rename_func("MIN")(self, expression)
205
206            return self.sql(expression, "this")
207
208        def transaction_sql(self, expression: exp.Transaction) -> str:
209            this = expression.this
210            this = f" {this}" if this else ""
211            return f"BEGIN{this} TRANSACTION"

Generator converts a given syntax tree to the corresponding SQL string.

Arguments:

pretty: Whether or not to format the produced SQL string. Default: False.
identify: Determines when an identifier should be quoted. Possible values are: False (default): Never quote, except in cases where it's mandatory by the dialect. True or 'always': Always quote. 'safe': Only quote identifiers that are case insensitive.
normalize: Whether or not to normalize identifiers to lowercase. Default: False.
pad: Determines the pad size in a formatted string. Default: 2.
indent: Determines the indentation size in a formatted string. Default: 2.
normalize_functions: Whether or not to normalize all function names. Possible values are: "upper" or True (default): Convert names to uppercase. "lower": Convert names to lowercase. False: Disables function name normalization.
unsupported_level: Determines the generator's behavior when it encounters unsupported expressions. Default ErrorLevel.WARN.
max_unsupported: Maximum number of unsupported messages to include in a raised UnsupportedError. This is only relevant if unsupported_level is ErrorLevel.RAISE. Default: 3
leading_comma: Determines whether or not the comma is leading or trailing in select expressions. This is only relevant when generating in pretty mode. Default: False
max_text_width: The max number of characters in a segment before creating new lines in pretty mode. The default is on the smaller end because the length only represents a segment and not the true line length. Default: 80
comments: Whether or not to preserve comments in the output SQL code. Default: True

JOIN_HINTS = False

TABLE_HINTS = False

QUERY_HINTS = False

NVL2_SUPPORTED = False

TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'TEXT', <Type.NVARCHAR: 'NVARCHAR'>: 'TEXT', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.TINYTEXT: 'TINYTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.TINYBLOB: 'TINYBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.BOOLEAN: 'BOOLEAN'>: 'INTEGER', <Type.TINYINT: 'TINYINT'>: 'INTEGER', <Type.SMALLINT: 'SMALLINT'>: 'INTEGER', <Type.INT: 'INT'>: 'INTEGER', <Type.BIGINT: 'BIGINT'>: 'INTEGER', <Type.FLOAT: 'FLOAT'>: 'REAL', <Type.DOUBLE: 'DOUBLE'>: 'REAL', <Type.DECIMAL: 'DECIMAL'>: 'REAL', <Type.CHAR: 'CHAR'>: 'TEXT', <Type.VARCHAR: 'VARCHAR'>: 'TEXT', <Type.BINARY: 'BINARY'>: 'BLOB', <Type.VARBINARY: 'VARBINARY'>: 'BLOB'}

TOKEN_MAPPING = {<TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>: 'AUTOINCREMENT'}

TRANSFORMS = {<class 'sqlglot.expressions.DateAdd'>: <function _date_add_sql>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CheckColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LanguageProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LocationProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LogProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.MaterializedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NonClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NotForReplicationColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AnyValue'>: <function any_value_to_max_sql>, <class 'sqlglot.expressions.Concat'>: <function concat_to_dpipe_sql>, <class 'sqlglot.expressions.CountIf'>: <function count_if_to_sum>, <class 'sqlglot.expressions.Create'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.CurrentDate'>: <function SQLite.Generator.<lambda>>, <class 'sqlglot.expressions.CurrentTime'>: <function SQLite.Generator.<lambda>>, <class 'sqlglot.expressions.CurrentTimestamp'>: <function SQLite.Generator.<lambda>>, <class 'sqlglot.expressions.DateStrToDate'>: <function SQLite.Generator.<lambda>>, <class 'sqlglot.expressions.ILike'>: <function no_ilike_sql>, <class 'sqlglot.expressions.JSONExtract'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function arrow_json_extract_scalar_sql>, <class 'sqlglot.expressions.JSONBExtract'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.JSONBExtractScalar'>: <function arrow_json_extract_scalar_sql>, <class 'sqlglot.expressions.Levenshtein'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.LogicalOr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.LogicalAnd'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.TableSample'>: <function no_tablesample_sql>, <class 'sqlglot.expressions.TimeStrToTime'>: <function SQLite.Generator.<lambda>>, <class 'sqlglot.expressions.TryCast'>: <function no_trycast_sql>}

PROPERTIES_LOCATION = {<class 'sqlglot.expressions.AlgorithmProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.Cluster'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.DictRange'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.DictProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.LogProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.OnProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.Order'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.PartitionedOfProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.PrimaryKey'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.Property'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.ReturnsProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.RowFormatProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.RowFormatDelimitedProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.RowFormatSerdeProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SampleProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.Set'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SetProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.TransformModelProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>}

LIMIT_FETCH = 'LIMIT'

def cast_sql( self, expression: sqlglot.expressions.Cast, safe_prefix: Optional[str] = None) -> str: View Source

150        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
151            if expression.is_type("date"):
152                return self.func("DATE", expression.this)
153
154            return super().cast_sql(expression)

def datediff_sql(self, expression: sqlglot.expressions.DateDiff) -> str: View Source

156        def datediff_sql(self, expression: exp.DateDiff) -> str:
157            unit = expression.args.get("unit")
158            unit = unit.name.upper() if unit else "DAY"
159
160            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
161
162            if unit == "MONTH":
163                sql = f"{sql} / 30.0"
164            elif unit == "YEAR":
165                sql = f"{sql} / 365.0"
166            elif unit == "HOUR":
167                sql = f"{sql} * 24.0"
168            elif unit == "MINUTE":
169                sql = f"{sql} * 1440.0"
170            elif unit == "SECOND":
171                sql = f"{sql} * 86400.0"
172            elif unit == "MILLISECOND":
173                sql = f"{sql} * 86400000.0"
174            elif unit == "MICROSECOND":
175                sql = f"{sql} * 86400000000.0"
176            elif unit == "NANOSECOND":
177                sql = f"{sql} * 8640000000000.0"
178            else:
179                self.unsupported("DATEDIFF unsupported for '{unit}'.")
180
181            return f"CAST({sql} AS INTEGER)"

def groupconcat_sql(self, expression: sqlglot.expressions.GroupConcat) -> str: View Source

184        def groupconcat_sql(self, expression: exp.GroupConcat) -> str:
185            this = expression.this
186            distinct = expression.find(exp.Distinct)
187
188            if distinct:
189                this = distinct.expressions[0]
190                distinct_sql = "DISTINCT "
191            else:
192                distinct_sql = ""
193
194            if isinstance(expression.this, exp.Order):
195                self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
196                if expression.this.this and not distinct:
197                    this = expression.this.this
198
199            separator = expression.args.get("separator")
200            return f"GROUP_CONCAT({distinct_sql}{self.format_args(this, separator)})"

def least_sql(self, expression: sqlglot.expressions.Least) -> str: View Source

202        def least_sql(self, expression: exp.Least) -> str:
203            if len(expression.expressions) > 1:
204                return rename_func("MIN")(self, expression)
205
206            return self.sql(expression, "this")

def transaction_sql(self, expression: sqlglot.expressions.Transaction) -> str: View Source

208        def transaction_sql(self, expression: exp.Transaction) -> str:
209            this = expression.this
210            this = f" {this}" if this else ""
211            return f"BEGIN{this} TRANSACTION"

SELECT_KINDS: Tuple[str, ...] = ()

Inherited Members

sqlglot.generator.Generator: Generator; NULL_ORDERING_SUPPORTED; LOCKING_READS_SUPPORTED; EXPLICIT_UNION; WRAP_DERIVED_VALUES; CREATE_FUNCTION_RETURN_AS; MATCHED_BY_SOURCE; SINGLE_STRING_INTERVAL; INTERVAL_ALLOWS_PLURAL_FORM; TABLESAMPLE_WITH_METHOD; TABLESAMPLE_SIZE_IS_PERCENT; LIMIT_ONLY_LITERALS; RENAME_TABLE_WITH_DB; GROUPINGS_SEP; INDEX_ON; QUERY_HINT_SEP; IS_BOOL_ALLOWED; DUPLICATE_KEY_UPDATE_WITH_SET; LIMIT_IS_TOP; RETURNING_END; COLUMN_JOIN_MARKS_SUPPORTED; EXTRACT_ALLOWS_QUOTES; TZ_TO_WITH_TIME_ZONE; VALUES_AS_TABLE; ALTER_TABLE_INCLUDE_COLUMN_KEYWORD; UNNEST_WITH_ORDINALITY; AGGREGATE_FILTER_SUPPORTED; SEMI_ANTI_JOIN_WITH_SIDE; COMPUTED_COLUMN_WITH_TYPE; SUPPORTS_TABLE_COPY; TABLESAMPLE_REQUIRES_PARENS; COLLATE_IS_FUNC; DATA_TYPE_SPECIFIERS_ALLOWED; ENSURE_BOOLS; CTE_RECURSIVE_KEYWORD_REQUIRED; SUPPORTS_SINGLE_ARG_CONCAT; STAR_MAPPING; TIME_PART_SINGULARS; STRUCT_DELIMITER; PARAMETER_TOKEN; RESERVED_KEYWORDS; WITH_SEPARATED_COMMENTS; EXCLUDE_COMMENTS; UNWRAPPED_INTERVAL_VALUES; EXPRESSIONS_WITHOUT_NESTED_CTES; KEY_VALUE_DEFINITONS; SENTINEL_LINE_BREAK; pretty; identify; normalize; pad; unsupported_level; max_unsupported; leading_comma; max_text_width; comments; dialect; normalize_functions; unsupported_messages; generate; preprocess; unsupported; sep; seg; pad_comment; maybe_comment; wrap; no_identify; normalize_func; indent; sql; uncache_sql; cache_sql; characterset_sql; column_sql; columnposition_sql; columndef_sql; columnconstraint_sql; computedcolumnconstraint_sql; autoincrementcolumnconstraint_sql; compresscolumnconstraint_sql; generatedasidentitycolumnconstraint_sql; generatedasrowcolumnconstraint_sql; periodforsystemtimeconstraint_sql; notnullcolumnconstraint_sql; transformcolumnconstraint_sql; primarykeycolumnconstraint_sql; uniquecolumnconstraint_sql; createable_sql; create_sql; clone_sql; describe_sql; prepend_ctes; with_sql; cte_sql; tablealias_sql; bitstring_sql; hexstring_sql; bytestring_sql; rawstring_sql; datatypeparam_sql; datatype_sql; directory_sql; delete_sql; drop_sql; except_sql; except_op; fetch_sql; filter_sql; hint_sql; index_sql; identifier_sql; inputoutputformat_sql; national_sql; partition_sql; properties_sql; root_properties; properties; with_properties; locate_properties; property_name; property_sql; likeproperty_sql; fallbackproperty_sql; journalproperty_sql; freespaceproperty_sql; checksumproperty_sql; mergeblockratioproperty_sql; datablocksizeproperty_sql; blockcompressionproperty_sql; isolatedloadingproperty_sql; partitionboundspec_sql; partitionedofproperty_sql; lockingproperty_sql; withdataproperty_sql; withsystemversioningproperty_sql; insert_sql; intersect_sql; intersect_op; introducer_sql; kill_sql; pseudotype_sql; objectidentifier_sql; onconflict_sql; returning_sql; rowformatdelimitedproperty_sql; withtablehint_sql; indextablehint_sql; historicaldata_sql; table_sql; tablesample_sql; pivot_sql; version_sql; tuple_sql; update_sql; values_sql; var_sql; into_sql; from_sql; group_sql; having_sql; connect_sql; prior_sql; join_sql; lambda_sql; lateral_sql; limit_sql; offset_sql; setitem_sql; set_sql; pragma_sql; lock_sql; literal_sql; escape_str; loaddata_sql; null_sql; boolean_sql; order_sql; cluster_sql; distribute_sql; sort_sql; ordered_sql; matchrecognize_sql; query_modifiers; offset_limit_modifiers; after_having_modifiers; after_limit_modifiers; select_sql; schema_sql; schema_columns_sql; star_sql; parameter_sql; sessionparameter_sql; placeholder_sql; subquery_sql; qualify_sql; union_sql; union_op; unnest_sql; where_sql; window_sql; partition_by_sql; windowspec_sql; withingroup_sql; between_sql; bracket_sql; all_sql; any_sql; exists_sql; case_sql; constraint_sql; nextvaluefor_sql; extract_sql; trim_sql; convert_concat_args; concat_sql; concatws_sql; check_sql; foreignkey_sql; primarykey_sql; if_sql; matchagainst_sql; jsonkeyvalue_sql; formatjson_sql; jsonobject_sql; jsonarray_sql; jsonarrayagg_sql; jsoncolumndef_sql; jsonschema_sql; jsontable_sql; openjsoncolumndef_sql; openjson_sql; in_sql; in_unnest_op; 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set_operation; tag_sql; token_sql; userdefinedfunction_sql; joinhint_sql; kwarg_sql; when_sql; merge_sql; tochar_sql; dictproperty_sql; dictrange_sql; dictsubproperty_sql; oncluster_sql; clusteredbyproperty_sql; anyvalue_sql; querytransform_sql; indexconstraintoption_sql; indexcolumnconstraint_sql; nvl2_sql; comprehension_sql; columnprefix_sql; opclass_sql; predict_sql; forin_sql; refresh_sql; operator_sql