sqlglot.dialects.clickhouse
1from __future__ import annotations 2 3import typing as t 4 5from sqlglot import exp, generator, parser, tokens 6from sqlglot.dialects.dialect import ( 7 Dialect, 8 inline_array_sql, 9 no_pivot_sql, 10 rename_func, 11 var_map_sql, 12) 13from sqlglot.errors import ParseError 14from sqlglot.parser import parse_var_map 15from sqlglot.tokens import Token, TokenType 16 17 18def _lower_func(sql: str) -> str: 19 index = sql.index("(") 20 return sql[:index].lower() + sql[index:] 21 22 23class ClickHouse(Dialect): 24 NORMALIZE_FUNCTIONS: bool | str = False 25 NULL_ORDERING = "nulls_are_last" 26 STRICT_STRING_CONCAT = True 27 28 class Tokenizer(tokens.Tokenizer): 29 COMMENTS = ["--", "#", "#!", ("/*", "*/")] 30 IDENTIFIERS = ['"', "`"] 31 STRING_ESCAPES = ["'", "\\"] 32 BIT_STRINGS = [("0b", "")] 33 HEX_STRINGS = [("0x", ""), ("0X", "")] 34 35 KEYWORDS = { 36 **tokens.Tokenizer.KEYWORDS, 37 "ATTACH": TokenType.COMMAND, 38 "DATETIME64": TokenType.DATETIME64, 39 "DICTIONARY": TokenType.DICTIONARY, 40 "FINAL": TokenType.FINAL, 41 "FLOAT32": TokenType.FLOAT, 42 "FLOAT64": TokenType.DOUBLE, 43 "GLOBAL": TokenType.GLOBAL, 44 "INT128": TokenType.INT128, 45 "INT16": TokenType.SMALLINT, 46 "INT256": TokenType.INT256, 47 "INT32": TokenType.INT, 48 "INT64": TokenType.BIGINT, 49 "INT8": TokenType.TINYINT, 50 "MAP": TokenType.MAP, 51 "TUPLE": TokenType.STRUCT, 52 "UINT128": TokenType.UINT128, 53 "UINT16": TokenType.USMALLINT, 54 "UINT256": TokenType.UINT256, 55 "UINT32": TokenType.UINT, 56 "UINT64": TokenType.UBIGINT, 57 "UINT8": TokenType.UTINYINT, 58 } 59 60 class Parser(parser.Parser): 61 FUNCTIONS = { 62 **parser.Parser.FUNCTIONS, 63 "ANY": exp.AnyValue.from_arg_list, 64 "MAP": parse_var_map, 65 "MATCH": exp.RegexpLike.from_arg_list, 66 "UNIQ": exp.ApproxDistinct.from_arg_list, 67 "XOR": lambda args: exp.Xor(expressions=args), 68 } 69 70 FUNCTIONS_WITH_ALIASED_ARGS = {*parser.Parser.FUNCTIONS_WITH_ALIASED_ARGS, "TUPLE"} 71 72 FUNCTION_PARSERS = { 73 **parser.Parser.FUNCTION_PARSERS, 74 "QUANTILE": lambda self: self._parse_quantile(), 75 } 76 77 FUNCTION_PARSERS.pop("MATCH") 78 79 NO_PAREN_FUNCTION_PARSERS = parser.Parser.NO_PAREN_FUNCTION_PARSERS.copy() 80 NO_PAREN_FUNCTION_PARSERS.pop(TokenType.ANY) 81 82 RANGE_PARSERS = { 83 **parser.Parser.RANGE_PARSERS, 84 TokenType.GLOBAL: lambda self, this: self._match(TokenType.IN) 85 and self._parse_in(this, is_global=True), 86 } 87 88 # The PLACEHOLDER entry is popped because 1) it doesn't affect Clickhouse (it corresponds to 89 # the postgres-specific JSONBContains parser) and 2) it makes parsing the ternary op simpler. 90 COLUMN_OPERATORS = parser.Parser.COLUMN_OPERATORS.copy() 91 COLUMN_OPERATORS.pop(TokenType.PLACEHOLDER) 92 93 JOIN_KINDS = { 94 *parser.Parser.JOIN_KINDS, 95 TokenType.ANY, 96 TokenType.ASOF, 97 TokenType.ANTI, 98 TokenType.SEMI, 99 TokenType.ARRAY, 100 } 101 102 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - { 103 TokenType.ANY, 104 TokenType.SEMI, 105 TokenType.ANTI, 106 TokenType.SETTINGS, 107 TokenType.FORMAT, 108 TokenType.ARRAY, 109 } 110 111 LOG_DEFAULTS_TO_LN = True 112 113 QUERY_MODIFIER_PARSERS = { 114 **parser.Parser.QUERY_MODIFIER_PARSERS, 115 TokenType.SETTINGS: lambda self: ( 116 "settings", 117 self._advance() or self._parse_csv(self._parse_conjunction), 118 ), 119 TokenType.FORMAT: lambda self: ("format", self._advance() or self._parse_id_var()), 120 } 121 122 def _parse_conjunction(self) -> t.Optional[exp.Expression]: 123 this = super()._parse_conjunction() 124 125 if self._match(TokenType.PLACEHOLDER): 126 return self.expression( 127 exp.If, 128 this=this, 129 true=self._parse_conjunction(), 130 false=self._match(TokenType.COLON) and self._parse_conjunction(), 131 ) 132 133 return this 134 135 def _parse_placeholder(self) -> t.Optional[exp.Expression]: 136 """ 137 Parse a placeholder expression like SELECT {abc: UInt32} or FROM {table: Identifier} 138 https://clickhouse.com/docs/en/sql-reference/syntax#defining-and-using-query-parameters 139 """ 140 if not self._match(TokenType.L_BRACE): 141 return None 142 143 this = self._parse_id_var() 144 self._match(TokenType.COLON) 145 kind = self._parse_types(check_func=False) or ( 146 self._match_text_seq("IDENTIFIER") and "Identifier" 147 ) 148 149 if not kind: 150 self.raise_error("Expecting a placeholder type or 'Identifier' for tables") 151 elif not self._match(TokenType.R_BRACE): 152 self.raise_error("Expecting }") 153 154 return self.expression(exp.Placeholder, this=this, kind=kind) 155 156 def _parse_in(self, this: t.Optional[exp.Expression], is_global: bool = False) -> exp.In: 157 this = super()._parse_in(this) 158 this.set("is_global", is_global) 159 return this 160 161 def _parse_table( 162 self, 163 schema: bool = False, 164 joins: bool = False, 165 alias_tokens: t.Optional[t.Collection[TokenType]] = None, 166 parse_bracket: bool = False, 167 ) -> t.Optional[exp.Expression]: 168 this = super()._parse_table( 169 schema=schema, joins=joins, alias_tokens=alias_tokens, parse_bracket=parse_bracket 170 ) 171 172 if self._match(TokenType.FINAL): 173 this = self.expression(exp.Final, this=this) 174 175 return this 176 177 def _parse_position(self, haystack_first: bool = False) -> exp.StrPosition: 178 return super()._parse_position(haystack_first=True) 179 180 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ 181 def _parse_cte(self) -> exp.CTE: 182 index = self._index 183 try: 184 # WITH <identifier> AS <subquery expression> 185 return super()._parse_cte() 186 except ParseError: 187 # WITH <expression> AS <identifier> 188 self._retreat(index) 189 statement = self._parse_statement() 190 191 if statement and isinstance(statement.this, exp.Alias): 192 self.raise_error("Expected CTE to have alias") 193 194 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) 195 196 def _parse_join_parts( 197 self, 198 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: 199 is_global = self._match(TokenType.GLOBAL) and self._prev 200 kind_pre = self._match_set(self.JOIN_KINDS, advance=False) and self._prev 201 202 if kind_pre: 203 kind = self._match_set(self.JOIN_KINDS) and self._prev 204 side = self._match_set(self.JOIN_SIDES) and self._prev 205 return is_global, side, kind 206 207 return ( 208 is_global, 209 self._match_set(self.JOIN_SIDES) and self._prev, 210 self._match_set(self.JOIN_KINDS) and self._prev, 211 ) 212 213 def _parse_join( 214 self, skip_join_token: bool = False, parse_bracket: bool = False 215 ) -> t.Optional[exp.Join]: 216 join = super()._parse_join(skip_join_token=skip_join_token, parse_bracket=True) 217 218 if join: 219 join.set("global", join.args.pop("method", None)) 220 return join 221 222 def _parse_function( 223 self, 224 functions: t.Optional[t.Dict[str, t.Callable]] = None, 225 anonymous: bool = False, 226 optional_parens: bool = True, 227 ) -> t.Optional[exp.Expression]: 228 func = super()._parse_function( 229 functions=functions, anonymous=anonymous, optional_parens=optional_parens 230 ) 231 232 if isinstance(func, exp.Anonymous): 233 params = self._parse_func_params(func) 234 235 if params: 236 return self.expression( 237 exp.ParameterizedAgg, 238 this=func.this, 239 expressions=func.expressions, 240 params=params, 241 ) 242 243 return func 244 245 def _parse_func_params( 246 self, this: t.Optional[exp.Func] = None 247 ) -> t.Optional[t.List[t.Optional[exp.Expression]]]: 248 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): 249 return self._parse_csv(self._parse_lambda) 250 251 if self._match(TokenType.L_PAREN): 252 params = self._parse_csv(self._parse_lambda) 253 self._match_r_paren(this) 254 return params 255 256 return None 257 258 def _parse_quantile(self) -> exp.Quantile: 259 this = self._parse_lambda() 260 params = self._parse_func_params() 261 if params: 262 return self.expression(exp.Quantile, this=params[0], quantile=this) 263 return self.expression(exp.Quantile, this=this, quantile=exp.Literal.number(0.5)) 264 265 def _parse_wrapped_id_vars( 266 self, optional: bool = False 267 ) -> t.List[t.Optional[exp.Expression]]: 268 return super()._parse_wrapped_id_vars(optional=True) 269 270 def _parse_primary_key( 271 self, wrapped_optional: bool = False, in_props: bool = False 272 ) -> exp.PrimaryKeyColumnConstraint | exp.PrimaryKey: 273 return super()._parse_primary_key( 274 wrapped_optional=wrapped_optional or in_props, in_props=in_props 275 ) 276 277 def _parse_on_property(self) -> t.Optional[exp.Expression]: 278 index = self._index 279 if self._match_text_seq("CLUSTER"): 280 this = self._parse_id_var() 281 if this: 282 return self.expression(exp.OnCluster, this=this) 283 else: 284 self._retreat(index) 285 return None 286 287 class Generator(generator.Generator): 288 QUERY_HINTS = False 289 STRUCT_DELIMITER = ("(", ")") 290 291 TYPE_MAPPING = { 292 **generator.Generator.TYPE_MAPPING, 293 exp.DataType.Type.ARRAY: "Array", 294 exp.DataType.Type.BIGINT: "Int64", 295 exp.DataType.Type.DATETIME64: "DateTime64", 296 exp.DataType.Type.DOUBLE: "Float64", 297 exp.DataType.Type.FLOAT: "Float32", 298 exp.DataType.Type.INT: "Int32", 299 exp.DataType.Type.INT128: "Int128", 300 exp.DataType.Type.INT256: "Int256", 301 exp.DataType.Type.MAP: "Map", 302 exp.DataType.Type.NULLABLE: "Nullable", 303 exp.DataType.Type.SMALLINT: "Int16", 304 exp.DataType.Type.STRUCT: "Tuple", 305 exp.DataType.Type.TINYINT: "Int8", 306 exp.DataType.Type.UBIGINT: "UInt64", 307 exp.DataType.Type.UINT: "UInt32", 308 exp.DataType.Type.UINT128: "UInt128", 309 exp.DataType.Type.UINT256: "UInt256", 310 exp.DataType.Type.USMALLINT: "UInt16", 311 exp.DataType.Type.UTINYINT: "UInt8", 312 } 313 314 TRANSFORMS = { 315 **generator.Generator.TRANSFORMS, 316 exp.AnyValue: rename_func("any"), 317 exp.ApproxDistinct: rename_func("uniq"), 318 exp.Array: inline_array_sql, 319 exp.CastToStrType: rename_func("CAST"), 320 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", 321 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), 322 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", 323 exp.Pivot: no_pivot_sql, 324 exp.Quantile: lambda self, e: self.func("quantile", e.args.get("quantile")) 325 + f"({self.sql(e, 'this')})", 326 exp.RegexpLike: lambda self, e: f"match({self.format_args(e.this, e.expression)})", 327 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", 328 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), 329 exp.Xor: lambda self, e: self.func("xor", e.this, e.expression, *e.expressions), 330 } 331 332 PROPERTIES_LOCATION = { 333 **generator.Generator.PROPERTIES_LOCATION, 334 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 335 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, 336 exp.OnCluster: exp.Properties.Location.POST_NAME, 337 } 338 339 JOIN_HINTS = False 340 TABLE_HINTS = False 341 EXPLICIT_UNION = True 342 GROUPINGS_SEP = "" 343 344 # there's no list in docs, but it can be found in Clickhouse code 345 # see `ClickHouse/src/Parsers/ParserCreate*.cpp` 346 ON_CLUSTER_TARGETS = { 347 "DATABASE", 348 "TABLE", 349 "VIEW", 350 "DICTIONARY", 351 "INDEX", 352 "FUNCTION", 353 "NAMED COLLECTION", 354 } 355 356 def safeconcat_sql(self, expression: exp.SafeConcat) -> str: 357 # Clickhouse errors out if we try to cast a NULL value to TEXT 358 return self.func( 359 "CONCAT", 360 *[ 361 exp.func("if", e.is_(exp.null()), e, exp.cast(e, "text")) 362 for e in t.cast(t.List[exp.Condition], expression.expressions) 363 ], 364 ) 365 366 def cte_sql(self, expression: exp.CTE) -> str: 367 if isinstance(expression.this, exp.Alias): 368 return self.sql(expression, "this") 369 370 return super().cte_sql(expression) 371 372 def after_limit_modifiers(self, expression: exp.Expression) -> t.List[str]: 373 return super().after_limit_modifiers(expression) + [ 374 self.seg("SETTINGS ") + self.expressions(expression, key="settings", flat=True) 375 if expression.args.get("settings") 376 else "", 377 self.seg("FORMAT ") + self.sql(expression, "format") 378 if expression.args.get("format") 379 else "", 380 ] 381 382 def parameterizedagg_sql(self, expression: exp.Anonymous) -> str: 383 params = self.expressions(expression, key="params", flat=True) 384 return self.func(expression.name, *expression.expressions) + f"({params})" 385 386 def placeholder_sql(self, expression: exp.Placeholder) -> str: 387 return f"{{{expression.name}: {self.sql(expression, 'kind')}}}" 388 389 def oncluster_sql(self, expression: exp.OnCluster) -> str: 390 return f"ON CLUSTER {self.sql(expression, 'this')}" 391 392 def createable_sql( 393 self, 394 expression: exp.Create, 395 locations: dict[exp.Properties.Location, list[exp.Property]], 396 ) -> str: 397 kind = self.sql(expression, "kind").upper() 398 if kind in self.ON_CLUSTER_TARGETS and locations.get(exp.Properties.Location.POST_NAME): 399 this_name = self.sql(expression.this, "this") 400 this_properties = " ".join( 401 [self.sql(prop) for prop in locations[exp.Properties.Location.POST_NAME]] 402 ) 403 this_schema = self.schema_columns_sql(expression.this) 404 return f"{this_name}{self.sep()}{this_properties}{self.sep()}{this_schema}" 405 return super().createable_sql(expression, locations)
24class ClickHouse(Dialect): 25 NORMALIZE_FUNCTIONS: bool | str = False 26 NULL_ORDERING = "nulls_are_last" 27 STRICT_STRING_CONCAT = True 28 29 class Tokenizer(tokens.Tokenizer): 30 COMMENTS = ["--", "#", "#!", ("/*", "*/")] 31 IDENTIFIERS = ['"', "`"] 32 STRING_ESCAPES = ["'", "\\"] 33 BIT_STRINGS = [("0b", "")] 34 HEX_STRINGS = [("0x", ""), ("0X", "")] 35 36 KEYWORDS = { 37 **tokens.Tokenizer.KEYWORDS, 38 "ATTACH": TokenType.COMMAND, 39 "DATETIME64": TokenType.DATETIME64, 40 "DICTIONARY": TokenType.DICTIONARY, 41 "FINAL": TokenType.FINAL, 42 "FLOAT32": TokenType.FLOAT, 43 "FLOAT64": TokenType.DOUBLE, 44 "GLOBAL": TokenType.GLOBAL, 45 "INT128": TokenType.INT128, 46 "INT16": TokenType.SMALLINT, 47 "INT256": TokenType.INT256, 48 "INT32": TokenType.INT, 49 "INT64": TokenType.BIGINT, 50 "INT8": TokenType.TINYINT, 51 "MAP": TokenType.MAP, 52 "TUPLE": TokenType.STRUCT, 53 "UINT128": TokenType.UINT128, 54 "UINT16": TokenType.USMALLINT, 55 "UINT256": TokenType.UINT256, 56 "UINT32": TokenType.UINT, 57 "UINT64": TokenType.UBIGINT, 58 "UINT8": TokenType.UTINYINT, 59 } 60 61 class Parser(parser.Parser): 62 FUNCTIONS = { 63 **parser.Parser.FUNCTIONS, 64 "ANY": exp.AnyValue.from_arg_list, 65 "MAP": parse_var_map, 66 "MATCH": exp.RegexpLike.from_arg_list, 67 "UNIQ": exp.ApproxDistinct.from_arg_list, 68 "XOR": lambda args: exp.Xor(expressions=args), 69 } 70 71 FUNCTIONS_WITH_ALIASED_ARGS = {*parser.Parser.FUNCTIONS_WITH_ALIASED_ARGS, "TUPLE"} 72 73 FUNCTION_PARSERS = { 74 **parser.Parser.FUNCTION_PARSERS, 75 "QUANTILE": lambda self: self._parse_quantile(), 76 } 77 78 FUNCTION_PARSERS.pop("MATCH") 79 80 NO_PAREN_FUNCTION_PARSERS = parser.Parser.NO_PAREN_FUNCTION_PARSERS.copy() 81 NO_PAREN_FUNCTION_PARSERS.pop(TokenType.ANY) 82 83 RANGE_PARSERS = { 84 **parser.Parser.RANGE_PARSERS, 85 TokenType.GLOBAL: lambda self, this: self._match(TokenType.IN) 86 and self._parse_in(this, is_global=True), 87 } 88 89 # The PLACEHOLDER entry is popped because 1) it doesn't affect Clickhouse (it corresponds to 90 # the postgres-specific JSONBContains parser) and 2) it makes parsing the ternary op simpler. 91 COLUMN_OPERATORS = parser.Parser.COLUMN_OPERATORS.copy() 92 COLUMN_OPERATORS.pop(TokenType.PLACEHOLDER) 93 94 JOIN_KINDS = { 95 *parser.Parser.JOIN_KINDS, 96 TokenType.ANY, 97 TokenType.ASOF, 98 TokenType.ANTI, 99 TokenType.SEMI, 100 TokenType.ARRAY, 101 } 102 103 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - { 104 TokenType.ANY, 105 TokenType.SEMI, 106 TokenType.ANTI, 107 TokenType.SETTINGS, 108 TokenType.FORMAT, 109 TokenType.ARRAY, 110 } 111 112 LOG_DEFAULTS_TO_LN = True 113 114 QUERY_MODIFIER_PARSERS = { 115 **parser.Parser.QUERY_MODIFIER_PARSERS, 116 TokenType.SETTINGS: lambda self: ( 117 "settings", 118 self._advance() or self._parse_csv(self._parse_conjunction), 119 ), 120 TokenType.FORMAT: lambda self: ("format", self._advance() or self._parse_id_var()), 121 } 122 123 def _parse_conjunction(self) -> t.Optional[exp.Expression]: 124 this = super()._parse_conjunction() 125 126 if self._match(TokenType.PLACEHOLDER): 127 return self.expression( 128 exp.If, 129 this=this, 130 true=self._parse_conjunction(), 131 false=self._match(TokenType.COLON) and self._parse_conjunction(), 132 ) 133 134 return this 135 136 def _parse_placeholder(self) -> t.Optional[exp.Expression]: 137 """ 138 Parse a placeholder expression like SELECT {abc: UInt32} or FROM {table: Identifier} 139 https://clickhouse.com/docs/en/sql-reference/syntax#defining-and-using-query-parameters 140 """ 141 if not self._match(TokenType.L_BRACE): 142 return None 143 144 this = self._parse_id_var() 145 self._match(TokenType.COLON) 146 kind = self._parse_types(check_func=False) or ( 147 self._match_text_seq("IDENTIFIER") and "Identifier" 148 ) 149 150 if not kind: 151 self.raise_error("Expecting a placeholder type or 'Identifier' for tables") 152 elif not self._match(TokenType.R_BRACE): 153 self.raise_error("Expecting }") 154 155 return self.expression(exp.Placeholder, this=this, kind=kind) 156 157 def _parse_in(self, this: t.Optional[exp.Expression], is_global: bool = False) -> exp.In: 158 this = super()._parse_in(this) 159 this.set("is_global", is_global) 160 return this 161 162 def _parse_table( 163 self, 164 schema: bool = False, 165 joins: bool = False, 166 alias_tokens: t.Optional[t.Collection[TokenType]] = None, 167 parse_bracket: bool = False, 168 ) -> t.Optional[exp.Expression]: 169 this = super()._parse_table( 170 schema=schema, joins=joins, alias_tokens=alias_tokens, parse_bracket=parse_bracket 171 ) 172 173 if self._match(TokenType.FINAL): 174 this = self.expression(exp.Final, this=this) 175 176 return this 177 178 def _parse_position(self, haystack_first: bool = False) -> exp.StrPosition: 179 return super()._parse_position(haystack_first=True) 180 181 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ 182 def _parse_cte(self) -> exp.CTE: 183 index = self._index 184 try: 185 # WITH <identifier> AS <subquery expression> 186 return super()._parse_cte() 187 except ParseError: 188 # WITH <expression> AS <identifier> 189 self._retreat(index) 190 statement = self._parse_statement() 191 192 if statement and isinstance(statement.this, exp.Alias): 193 self.raise_error("Expected CTE to have alias") 194 195 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) 196 197 def _parse_join_parts( 198 self, 199 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: 200 is_global = self._match(TokenType.GLOBAL) and self._prev 201 kind_pre = self._match_set(self.JOIN_KINDS, advance=False) and self._prev 202 203 if kind_pre: 204 kind = self._match_set(self.JOIN_KINDS) and self._prev 205 side = self._match_set(self.JOIN_SIDES) and self._prev 206 return is_global, side, kind 207 208 return ( 209 is_global, 210 self._match_set(self.JOIN_SIDES) and self._prev, 211 self._match_set(self.JOIN_KINDS) and self._prev, 212 ) 213 214 def _parse_join( 215 self, skip_join_token: bool = False, parse_bracket: bool = False 216 ) -> t.Optional[exp.Join]: 217 join = super()._parse_join(skip_join_token=skip_join_token, parse_bracket=True) 218 219 if join: 220 join.set("global", join.args.pop("method", None)) 221 return join 222 223 def _parse_function( 224 self, 225 functions: t.Optional[t.Dict[str, t.Callable]] = None, 226 anonymous: bool = False, 227 optional_parens: bool = True, 228 ) -> t.Optional[exp.Expression]: 229 func = super()._parse_function( 230 functions=functions, anonymous=anonymous, optional_parens=optional_parens 231 ) 232 233 if isinstance(func, exp.Anonymous): 234 params = self._parse_func_params(func) 235 236 if params: 237 return self.expression( 238 exp.ParameterizedAgg, 239 this=func.this, 240 expressions=func.expressions, 241 params=params, 242 ) 243 244 return func 245 246 def _parse_func_params( 247 self, this: t.Optional[exp.Func] = None 248 ) -> t.Optional[t.List[t.Optional[exp.Expression]]]: 249 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): 250 return self._parse_csv(self._parse_lambda) 251 252 if self._match(TokenType.L_PAREN): 253 params = self._parse_csv(self._parse_lambda) 254 self._match_r_paren(this) 255 return params 256 257 return None 258 259 def _parse_quantile(self) -> exp.Quantile: 260 this = self._parse_lambda() 261 params = self._parse_func_params() 262 if params: 263 return self.expression(exp.Quantile, this=params[0], quantile=this) 264 return self.expression(exp.Quantile, this=this, quantile=exp.Literal.number(0.5)) 265 266 def _parse_wrapped_id_vars( 267 self, optional: bool = False 268 ) -> t.List[t.Optional[exp.Expression]]: 269 return super()._parse_wrapped_id_vars(optional=True) 270 271 def _parse_primary_key( 272 self, wrapped_optional: bool = False, in_props: bool = False 273 ) -> exp.PrimaryKeyColumnConstraint | exp.PrimaryKey: 274 return super()._parse_primary_key( 275 wrapped_optional=wrapped_optional or in_props, in_props=in_props 276 ) 277 278 def _parse_on_property(self) -> t.Optional[exp.Expression]: 279 index = self._index 280 if self._match_text_seq("CLUSTER"): 281 this = self._parse_id_var() 282 if this: 283 return self.expression(exp.OnCluster, this=this) 284 else: 285 self._retreat(index) 286 return None 287 288 class Generator(generator.Generator): 289 QUERY_HINTS = False 290 STRUCT_DELIMITER = ("(", ")") 291 292 TYPE_MAPPING = { 293 **generator.Generator.TYPE_MAPPING, 294 exp.DataType.Type.ARRAY: "Array", 295 exp.DataType.Type.BIGINT: "Int64", 296 exp.DataType.Type.DATETIME64: "DateTime64", 297 exp.DataType.Type.DOUBLE: "Float64", 298 exp.DataType.Type.FLOAT: "Float32", 299 exp.DataType.Type.INT: "Int32", 300 exp.DataType.Type.INT128: "Int128", 301 exp.DataType.Type.INT256: "Int256", 302 exp.DataType.Type.MAP: "Map", 303 exp.DataType.Type.NULLABLE: "Nullable", 304 exp.DataType.Type.SMALLINT: "Int16", 305 exp.DataType.Type.STRUCT: "Tuple", 306 exp.DataType.Type.TINYINT: "Int8", 307 exp.DataType.Type.UBIGINT: "UInt64", 308 exp.DataType.Type.UINT: "UInt32", 309 exp.DataType.Type.UINT128: "UInt128", 310 exp.DataType.Type.UINT256: "UInt256", 311 exp.DataType.Type.USMALLINT: "UInt16", 312 exp.DataType.Type.UTINYINT: "UInt8", 313 } 314 315 TRANSFORMS = { 316 **generator.Generator.TRANSFORMS, 317 exp.AnyValue: rename_func("any"), 318 exp.ApproxDistinct: rename_func("uniq"), 319 exp.Array: inline_array_sql, 320 exp.CastToStrType: rename_func("CAST"), 321 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", 322 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), 323 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", 324 exp.Pivot: no_pivot_sql, 325 exp.Quantile: lambda self, e: self.func("quantile", e.args.get("quantile")) 326 + f"({self.sql(e, 'this')})", 327 exp.RegexpLike: lambda self, e: f"match({self.format_args(e.this, e.expression)})", 328 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", 329 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), 330 exp.Xor: lambda self, e: self.func("xor", e.this, e.expression, *e.expressions), 331 } 332 333 PROPERTIES_LOCATION = { 334 **generator.Generator.PROPERTIES_LOCATION, 335 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 336 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, 337 exp.OnCluster: exp.Properties.Location.POST_NAME, 338 } 339 340 JOIN_HINTS = False 341 TABLE_HINTS = False 342 EXPLICIT_UNION = True 343 GROUPINGS_SEP = "" 344 345 # there's no list in docs, but it can be found in Clickhouse code 346 # see `ClickHouse/src/Parsers/ParserCreate*.cpp` 347 ON_CLUSTER_TARGETS = { 348 "DATABASE", 349 "TABLE", 350 "VIEW", 351 "DICTIONARY", 352 "INDEX", 353 "FUNCTION", 354 "NAMED COLLECTION", 355 } 356 357 def safeconcat_sql(self, expression: exp.SafeConcat) -> str: 358 # Clickhouse errors out if we try to cast a NULL value to TEXT 359 return self.func( 360 "CONCAT", 361 *[ 362 exp.func("if", e.is_(exp.null()), e, exp.cast(e, "text")) 363 for e in t.cast(t.List[exp.Condition], expression.expressions) 364 ], 365 ) 366 367 def cte_sql(self, expression: exp.CTE) -> str: 368 if isinstance(expression.this, exp.Alias): 369 return self.sql(expression, "this") 370 371 return super().cte_sql(expression) 372 373 def after_limit_modifiers(self, expression: exp.Expression) -> t.List[str]: 374 return super().after_limit_modifiers(expression) + [ 375 self.seg("SETTINGS ") + self.expressions(expression, key="settings", flat=True) 376 if expression.args.get("settings") 377 else "", 378 self.seg("FORMAT ") + self.sql(expression, "format") 379 if expression.args.get("format") 380 else "", 381 ] 382 383 def parameterizedagg_sql(self, expression: exp.Anonymous) -> str: 384 params = self.expressions(expression, key="params", flat=True) 385 return self.func(expression.name, *expression.expressions) + f"({params})" 386 387 def placeholder_sql(self, expression: exp.Placeholder) -> str: 388 return f"{{{expression.name}: {self.sql(expression, 'kind')}}}" 389 390 def oncluster_sql(self, expression: exp.OnCluster) -> str: 391 return f"ON CLUSTER {self.sql(expression, 'this')}" 392 393 def createable_sql( 394 self, 395 expression: exp.Create, 396 locations: dict[exp.Properties.Location, list[exp.Property]], 397 ) -> str: 398 kind = self.sql(expression, "kind").upper() 399 if kind in self.ON_CLUSTER_TARGETS and locations.get(exp.Properties.Location.POST_NAME): 400 this_name = self.sql(expression.this, "this") 401 this_properties = " ".join( 402 [self.sql(prop) for prop in locations[exp.Properties.Location.POST_NAME]] 403 ) 404 this_schema = self.schema_columns_sql(expression.this) 405 return f"{this_name}{self.sep()}{this_properties}{self.sep()}{this_schema}" 406 return super().createable_sql(expression, locations)
tokenizer_class =
<class 'sqlglot.dialects.clickhouse.ClickHouse.Tokenizer'>
parser_class =
<class 'sqlglot.dialects.clickhouse.ClickHouse.Parser'>
generator_class =
<class 'sqlglot.dialects.clickhouse.ClickHouse.Generator'>
Inherited Members
- sqlglot.dialects.dialect.Dialect
- INDEX_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- RESOLVES_IDENTIFIERS_AS_UPPERCASE
- IDENTIFIERS_CAN_START_WITH_DIGIT
- DATE_FORMAT
- DATEINT_FORMAT
- TIME_FORMAT
- TIME_MAPPING
- FORMAT_MAPPING
- PSEUDOCOLUMNS
- get_or_raise
- format_time
- normalize_identifier
- case_sensitive
- can_identify
- quote_identifier
- parse
- parse_into
- generate
- transpile
- tokenize
- tokenizer
- parser
- generator
29 class Tokenizer(tokens.Tokenizer): 30 COMMENTS = ["--", "#", "#!", ("/*", "*/")] 31 IDENTIFIERS = ['"', "`"] 32 STRING_ESCAPES = ["'", "\\"] 33 BIT_STRINGS = [("0b", "")] 34 HEX_STRINGS = [("0x", ""), ("0X", "")] 35 36 KEYWORDS = { 37 **tokens.Tokenizer.KEYWORDS, 38 "ATTACH": TokenType.COMMAND, 39 "DATETIME64": TokenType.DATETIME64, 40 "DICTIONARY": TokenType.DICTIONARY, 41 "FINAL": TokenType.FINAL, 42 "FLOAT32": TokenType.FLOAT, 43 "FLOAT64": TokenType.DOUBLE, 44 "GLOBAL": TokenType.GLOBAL, 45 "INT128": TokenType.INT128, 46 "INT16": TokenType.SMALLINT, 47 "INT256": TokenType.INT256, 48 "INT32": TokenType.INT, 49 "INT64": TokenType.BIGINT, 50 "INT8": TokenType.TINYINT, 51 "MAP": TokenType.MAP, 52 "TUPLE": TokenType.STRUCT, 53 "UINT128": TokenType.UINT128, 54 "UINT16": TokenType.USMALLINT, 55 "UINT256": TokenType.UINT256, 56 "UINT32": TokenType.UINT, 57 "UINT64": TokenType.UBIGINT, 58 "UINT8": TokenType.UTINYINT, 59 }
KEYWORDS =
{'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'IF': <TokenType.IF: 'IF'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NEXT VALUE FOR': <TokenType.NEXT_VALUE_FOR: 'NEXT_VALUE_FOR'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, 'VALUES': <TokenType.VALUES: 'VALUES'>, 'VIEW': <TokenType.VIEW: 'VIEW'>, 'VOLATILE': <TokenType.VOLATILE: 'VOLATILE'>, 'WHEN': <TokenType.WHEN: 'WHEN'>, 'WHERE': <TokenType.WHERE: 'WHERE'>, 'WINDOW': <TokenType.WINDOW: 'WINDOW'>, 'WITH': <TokenType.WITH: 'WITH'>, 'APPLY': <TokenType.APPLY: 'APPLY'>, 'ARRAY': <TokenType.ARRAY: 'ARRAY'>, 'BIT': <TokenType.BIT: 'BIT'>, 'BOOL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BOOLEAN': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BYTE': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'COPY': <TokenType.COMMAND: 'COMMAND'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.COMMAND: 'COMMAND'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'TRUNCATE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'ATTACH': <TokenType.COMMAND: 'COMMAND'>, 'DATETIME64': <TokenType.DATETIME64: 'DATETIME64'>, 'DICTIONARY': <TokenType.DICTIONARY: 'DICTIONARY'>, 'FINAL': <TokenType.FINAL: 'FINAL'>, 'FLOAT32': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT64': <TokenType.DOUBLE: 'DOUBLE'>, 'GLOBAL': <TokenType.GLOBAL: 'GLOBAL'>, 'INT128': <TokenType.INT128: 'INT128'>, 'INT16': <TokenType.SMALLINT: 'SMALLINT'>, 'INT256': <TokenType.INT256: 'INT256'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'TUPLE': <TokenType.STRUCT: 'STRUCT'>, 'UINT128': <TokenType.UINT128: 'UINT128'>, 'UINT16': <TokenType.USMALLINT: 'USMALLINT'>, 'UINT256': <TokenType.UINT256: 'UINT256'>, 'UINT32': <TokenType.UINT: 'UINT'>, 'UINT64': <TokenType.UBIGINT: 'UBIGINT'>, 'UINT8': <TokenType.UTINYINT: 'UTINYINT'>}
61 class Parser(parser.Parser): 62 FUNCTIONS = { 63 **parser.Parser.FUNCTIONS, 64 "ANY": exp.AnyValue.from_arg_list, 65 "MAP": parse_var_map, 66 "MATCH": exp.RegexpLike.from_arg_list, 67 "UNIQ": exp.ApproxDistinct.from_arg_list, 68 "XOR": lambda args: exp.Xor(expressions=args), 69 } 70 71 FUNCTIONS_WITH_ALIASED_ARGS = {*parser.Parser.FUNCTIONS_WITH_ALIASED_ARGS, "TUPLE"} 72 73 FUNCTION_PARSERS = { 74 **parser.Parser.FUNCTION_PARSERS, 75 "QUANTILE": lambda self: self._parse_quantile(), 76 } 77 78 FUNCTION_PARSERS.pop("MATCH") 79 80 NO_PAREN_FUNCTION_PARSERS = parser.Parser.NO_PAREN_FUNCTION_PARSERS.copy() 81 NO_PAREN_FUNCTION_PARSERS.pop(TokenType.ANY) 82 83 RANGE_PARSERS = { 84 **parser.Parser.RANGE_PARSERS, 85 TokenType.GLOBAL: lambda self, this: self._match(TokenType.IN) 86 and self._parse_in(this, is_global=True), 87 } 88 89 # The PLACEHOLDER entry is popped because 1) it doesn't affect Clickhouse (it corresponds to 90 # the postgres-specific JSONBContains parser) and 2) it makes parsing the ternary op simpler. 91 COLUMN_OPERATORS = parser.Parser.COLUMN_OPERATORS.copy() 92 COLUMN_OPERATORS.pop(TokenType.PLACEHOLDER) 93 94 JOIN_KINDS = { 95 *parser.Parser.JOIN_KINDS, 96 TokenType.ANY, 97 TokenType.ASOF, 98 TokenType.ANTI, 99 TokenType.SEMI, 100 TokenType.ARRAY, 101 } 102 103 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - { 104 TokenType.ANY, 105 TokenType.SEMI, 106 TokenType.ANTI, 107 TokenType.SETTINGS, 108 TokenType.FORMAT, 109 TokenType.ARRAY, 110 } 111 112 LOG_DEFAULTS_TO_LN = True 113 114 QUERY_MODIFIER_PARSERS = { 115 **parser.Parser.QUERY_MODIFIER_PARSERS, 116 TokenType.SETTINGS: lambda self: ( 117 "settings", 118 self._advance() or self._parse_csv(self._parse_conjunction), 119 ), 120 TokenType.FORMAT: lambda self: ("format", self._advance() or self._parse_id_var()), 121 } 122 123 def _parse_conjunction(self) -> t.Optional[exp.Expression]: 124 this = super()._parse_conjunction() 125 126 if self._match(TokenType.PLACEHOLDER): 127 return self.expression( 128 exp.If, 129 this=this, 130 true=self._parse_conjunction(), 131 false=self._match(TokenType.COLON) and self._parse_conjunction(), 132 ) 133 134 return this 135 136 def _parse_placeholder(self) -> t.Optional[exp.Expression]: 137 """ 138 Parse a placeholder expression like SELECT {abc: UInt32} or FROM {table: Identifier} 139 https://clickhouse.com/docs/en/sql-reference/syntax#defining-and-using-query-parameters 140 """ 141 if not self._match(TokenType.L_BRACE): 142 return None 143 144 this = self._parse_id_var() 145 self._match(TokenType.COLON) 146 kind = self._parse_types(check_func=False) or ( 147 self._match_text_seq("IDENTIFIER") and "Identifier" 148 ) 149 150 if not kind: 151 self.raise_error("Expecting a placeholder type or 'Identifier' for tables") 152 elif not self._match(TokenType.R_BRACE): 153 self.raise_error("Expecting }") 154 155 return self.expression(exp.Placeholder, this=this, kind=kind) 156 157 def _parse_in(self, this: t.Optional[exp.Expression], is_global: bool = False) -> exp.In: 158 this = super()._parse_in(this) 159 this.set("is_global", is_global) 160 return this 161 162 def _parse_table( 163 self, 164 schema: bool = False, 165 joins: bool = False, 166 alias_tokens: t.Optional[t.Collection[TokenType]] = None, 167 parse_bracket: bool = False, 168 ) -> t.Optional[exp.Expression]: 169 this = super()._parse_table( 170 schema=schema, joins=joins, alias_tokens=alias_tokens, parse_bracket=parse_bracket 171 ) 172 173 if self._match(TokenType.FINAL): 174 this = self.expression(exp.Final, this=this) 175 176 return this 177 178 def _parse_position(self, haystack_first: bool = False) -> exp.StrPosition: 179 return super()._parse_position(haystack_first=True) 180 181 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ 182 def _parse_cte(self) -> exp.CTE: 183 index = self._index 184 try: 185 # WITH <identifier> AS <subquery expression> 186 return super()._parse_cte() 187 except ParseError: 188 # WITH <expression> AS <identifier> 189 self._retreat(index) 190 statement = self._parse_statement() 191 192 if statement and isinstance(statement.this, exp.Alias): 193 self.raise_error("Expected CTE to have alias") 194 195 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) 196 197 def _parse_join_parts( 198 self, 199 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: 200 is_global = self._match(TokenType.GLOBAL) and self._prev 201 kind_pre = self._match_set(self.JOIN_KINDS, advance=False) and self._prev 202 203 if kind_pre: 204 kind = self._match_set(self.JOIN_KINDS) and self._prev 205 side = self._match_set(self.JOIN_SIDES) and self._prev 206 return is_global, side, kind 207 208 return ( 209 is_global, 210 self._match_set(self.JOIN_SIDES) and self._prev, 211 self._match_set(self.JOIN_KINDS) and self._prev, 212 ) 213 214 def _parse_join( 215 self, skip_join_token: bool = False, parse_bracket: bool = False 216 ) -> t.Optional[exp.Join]: 217 join = super()._parse_join(skip_join_token=skip_join_token, parse_bracket=True) 218 219 if join: 220 join.set("global", join.args.pop("method", None)) 221 return join 222 223 def _parse_function( 224 self, 225 functions: t.Optional[t.Dict[str, t.Callable]] = None, 226 anonymous: bool = False, 227 optional_parens: bool = True, 228 ) -> t.Optional[exp.Expression]: 229 func = super()._parse_function( 230 functions=functions, anonymous=anonymous, optional_parens=optional_parens 231 ) 232 233 if isinstance(func, exp.Anonymous): 234 params = self._parse_func_params(func) 235 236 if params: 237 return self.expression( 238 exp.ParameterizedAgg, 239 this=func.this, 240 expressions=func.expressions, 241 params=params, 242 ) 243 244 return func 245 246 def _parse_func_params( 247 self, this: t.Optional[exp.Func] = None 248 ) -> t.Optional[t.List[t.Optional[exp.Expression]]]: 249 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): 250 return self._parse_csv(self._parse_lambda) 251 252 if self._match(TokenType.L_PAREN): 253 params = self._parse_csv(self._parse_lambda) 254 self._match_r_paren(this) 255 return params 256 257 return None 258 259 def _parse_quantile(self) -> exp.Quantile: 260 this = self._parse_lambda() 261 params = self._parse_func_params() 262 if params: 263 return self.expression(exp.Quantile, this=params[0], quantile=this) 264 return self.expression(exp.Quantile, this=this, quantile=exp.Literal.number(0.5)) 265 266 def _parse_wrapped_id_vars( 267 self, optional: bool = False 268 ) -> t.List[t.Optional[exp.Expression]]: 269 return super()._parse_wrapped_id_vars(optional=True) 270 271 def _parse_primary_key( 272 self, wrapped_optional: bool = False, in_props: bool = False 273 ) -> exp.PrimaryKeyColumnConstraint | exp.PrimaryKey: 274 return super()._parse_primary_key( 275 wrapped_optional=wrapped_optional or in_props, in_props=in_props 276 ) 277 278 def _parse_on_property(self) -> t.Optional[exp.Expression]: 279 index = self._index 280 if self._match_text_seq("CLUSTER"): 281 this = self._parse_id_var() 282 if this: 283 return self.expression(exp.OnCluster, this=this) 284 else: 285 self._retreat(index) 286 return None
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'>>, '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_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'>>, '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'>>, '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'>>, 'CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Concat'>>, 'CONCAT_WS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConcatWs'>>, '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'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, '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_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, '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'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log'>>, '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': <function parse_var_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'>>, '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'>>, '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'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, '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_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeConcat'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SET_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SetAgg'>>, '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_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'>>, '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_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_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'>>, '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_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': <function ClickHouse.Parser.<lambda>>, 'YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Year'>>, 'GLOB': <function Parser.<lambda>>, 'LIKE': <function parse_like>, 'ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'MATCH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'UNIQ': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>}
FUNCTION_PARSERS =
{'ANY_VALUE': <function Parser.<lambda>>, 'CAST': <function Parser.<lambda>>, 'CONCAT': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'LOG': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'SAFE_CAST': <function Parser.<lambda>>, 'STRING_AGG': <function Parser.<lambda>>, 'SUBSTRING': <function Parser.<lambda>>, 'TRIM': <function Parser.<lambda>>, 'TRY_CAST': <function Parser.<lambda>>, 'TRY_CONVERT': <function Parser.<lambda>>, 'QUANTILE': <function ClickHouse.Parser.<lambda>>}
NO_PAREN_FUNCTION_PARSERS =
{<TokenType.CASE: 'CASE'>: <function Parser.<lambda>>, <TokenType.IF: 'IF'>: <function Parser.<lambda>>, <TokenType.NEXT_VALUE_FOR: 'NEXT_VALUE_FOR'>: <function Parser.<lambda>>}
RANGE_PARSERS =
{<TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.OVERLAPS: 'OVERLAPS'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.RLIKE: 'RLIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.SIMILAR_TO: 'SIMILAR_TO'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.GLOBAL: 'GLOBAL'>: <function ClickHouse.Parser.<lambda>>}
COLUMN_OPERATORS =
{<TokenType.DOT: 'DOT'>: None, <TokenType.DCOLON: 'DCOLON'>: <function Parser.<lambda>>, <TokenType.ARROW: 'ARROW'>: <function Parser.<lambda>>, <TokenType.DARROW: 'DARROW'>: <function Parser.<lambda>>, <TokenType.HASH_ARROW: 'HASH_ARROW'>: <function Parser.<lambda>>, <TokenType.DHASH_ARROW: 'DHASH_ARROW'>: <function Parser.<lambda>>}
JOIN_KINDS =
{<TokenType.ANY: 'ANY'>, <TokenType.CROSS: 'CROSS'>, <TokenType.ASOF: 'ASOF'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.ANTI: 'ANTI'>, <TokenType.OUTER: 'OUTER'>, <TokenType.INNER: 'INNER'>, <TokenType.SEMI: 'SEMI'>}
TABLE_ALIAS_TOKENS =
{<TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.TRUE: 'TRUE'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.ENUM: 'ENUM'>, <TokenType.DELETE: 'DELETE'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.INT256: 'INT256'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.INT128: 'INT128'>, <TokenType.END: 'END'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TOP: 'TOP'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ASC: 'ASC'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.LOAD: 'LOAD'>, <TokenType.UINT256: 'UINT256'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.BINARY: 'BINARY'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.JSON: 'JSON'>, <TokenType.INET: 'INET'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IF: 'IF'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.TIME: 'TIME'>, <TokenType.ROW: 'ROW'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.NEXT: 'NEXT'>, <TokenType.SOME: 'SOME'>, <TokenType.DATE: 'DATE'>, <TokenType.SET: 'SET'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.BIT: 'BIT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.VAR: 'VAR'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.UINT: 'UINT'>, <TokenType.SHOW: 'SHOW'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.DIV: 'DIV'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.CASE: 'CASE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ALL: 'ALL'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.MAP: 'MAP'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.DESC: 'DESC'>, <TokenType.IS: 'IS'>, <TokenType.XML: 'XML'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.UUID: 'UUID'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.KEEP: 'KEEP'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.INT: 'INT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.CACHE: 'CACHE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.FALSE: 'FALSE'>, <TokenType.TEXT: 'TEXT'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.TABLE: 'TABLE'>, <TokenType.INTERVAL: 'INTERVAL'>}
QUERY_MODIFIER_PARSERS =
{<TokenType.MATCH_RECOGNIZE: 'MATCH_RECOGNIZE'>: <function Parser.<lambda>>, <TokenType.WHERE: 'WHERE'>: <function Parser.<lambda>>, <TokenType.GROUP_BY: 'GROUP_BY'>: <function Parser.<lambda>>, <TokenType.HAVING: 'HAVING'>: <function Parser.<lambda>>, <TokenType.QUALIFY: 'QUALIFY'>: <function Parser.<lambda>>, <TokenType.WINDOW: 'WINDOW'>: <function Parser.<lambda>>, <TokenType.ORDER_BY: 'ORDER_BY'>: <function Parser.<lambda>>, <TokenType.LIMIT: 'LIMIT'>: <function Parser.<lambda>>, <TokenType.FETCH: 'FETCH'>: <function Parser.<lambda>>, <TokenType.OFFSET: 'OFFSET'>: <function Parser.<lambda>>, <TokenType.FOR: 'FOR'>: <function Parser.<lambda>>, <TokenType.LOCK: 'LOCK'>: <function Parser.<lambda>>, <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>: <function Parser.<lambda>>, <TokenType.USING: 'USING'>: <function Parser.<lambda>>, <TokenType.CLUSTER_BY: 'CLUSTER_BY'>: <function Parser.<lambda>>, <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>: <function Parser.<lambda>>, <TokenType.SORT_BY: 'SORT_BY'>: <function Parser.<lambda>>, <TokenType.SETTINGS: 'SETTINGS'>: <function ClickHouse.Parser.<lambda>>, <TokenType.FORMAT: 'FORMAT'>: <function ClickHouse.Parser.<lambda>>}
SET_TRIE: Dict =
{'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}}
Inherited Members
- sqlglot.parser.Parser
- Parser
- NO_PAREN_FUNCTIONS
- NESTED_TYPE_TOKENS
- ENUM_TYPE_TOKENS
- TYPE_TOKENS
- SUBQUERY_PREDICATES
- RESERVED_KEYWORDS
- 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
- TIMESTAMPS
- SET_OPERATIONS
- JOIN_METHODS
- JOIN_SIDES
- JOIN_HINTS
- LAMBDAS
- EXPRESSION_PARSERS
- STATEMENT_PARSERS
- UNARY_PARSERS
- PRIMARY_PARSERS
- PLACEHOLDER_PARSERS
- PROPERTY_PARSERS
- CONSTRAINT_PARSERS
- ALTER_PARSERS
- SCHEMA_UNNAMED_CONSTRAINTS
- SET_PARSERS
- SHOW_PARSERS
- TYPE_LITERAL_PARSERS
- MODIFIABLES
- DDL_SELECT_TOKENS
- PRE_VOLATILE_TOKENS
- TRANSACTION_KIND
- TRANSACTION_CHARACTERISTICS
- INSERT_ALTERNATIVES
- CLONE_KINDS
- TABLE_INDEX_HINT_TOKENS
- WINDOW_ALIAS_TOKENS
- WINDOW_BEFORE_PAREN_TOKENS
- WINDOW_SIDES
- ADD_CONSTRAINT_TOKENS
- STRICT_CAST
- CONCAT_NULL_OUTPUTS_STRING
- PREFIXED_PIVOT_COLUMNS
- IDENTIFY_PIVOT_STRINGS
- LOG_BASE_FIRST
- INDEX_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- FORMAT_MAPPING
- TIME_MAPPING
- error_level
- error_message_context
- max_errors
- reset
- parse
- parse_into
- check_errors
- raise_error
- expression
- validate_expression
- errors
- sql
288 class Generator(generator.Generator): 289 QUERY_HINTS = False 290 STRUCT_DELIMITER = ("(", ")") 291 292 TYPE_MAPPING = { 293 **generator.Generator.TYPE_MAPPING, 294 exp.DataType.Type.ARRAY: "Array", 295 exp.DataType.Type.BIGINT: "Int64", 296 exp.DataType.Type.DATETIME64: "DateTime64", 297 exp.DataType.Type.DOUBLE: "Float64", 298 exp.DataType.Type.FLOAT: "Float32", 299 exp.DataType.Type.INT: "Int32", 300 exp.DataType.Type.INT128: "Int128", 301 exp.DataType.Type.INT256: "Int256", 302 exp.DataType.Type.MAP: "Map", 303 exp.DataType.Type.NULLABLE: "Nullable", 304 exp.DataType.Type.SMALLINT: "Int16", 305 exp.DataType.Type.STRUCT: "Tuple", 306 exp.DataType.Type.TINYINT: "Int8", 307 exp.DataType.Type.UBIGINT: "UInt64", 308 exp.DataType.Type.UINT: "UInt32", 309 exp.DataType.Type.UINT128: "UInt128", 310 exp.DataType.Type.UINT256: "UInt256", 311 exp.DataType.Type.USMALLINT: "UInt16", 312 exp.DataType.Type.UTINYINT: "UInt8", 313 } 314 315 TRANSFORMS = { 316 **generator.Generator.TRANSFORMS, 317 exp.AnyValue: rename_func("any"), 318 exp.ApproxDistinct: rename_func("uniq"), 319 exp.Array: inline_array_sql, 320 exp.CastToStrType: rename_func("CAST"), 321 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", 322 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), 323 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", 324 exp.Pivot: no_pivot_sql, 325 exp.Quantile: lambda self, e: self.func("quantile", e.args.get("quantile")) 326 + f"({self.sql(e, 'this')})", 327 exp.RegexpLike: lambda self, e: f"match({self.format_args(e.this, e.expression)})", 328 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", 329 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), 330 exp.Xor: lambda self, e: self.func("xor", e.this, e.expression, *e.expressions), 331 } 332 333 PROPERTIES_LOCATION = { 334 **generator.Generator.PROPERTIES_LOCATION, 335 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 336 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, 337 exp.OnCluster: exp.Properties.Location.POST_NAME, 338 } 339 340 JOIN_HINTS = False 341 TABLE_HINTS = False 342 EXPLICIT_UNION = True 343 GROUPINGS_SEP = "" 344 345 # there's no list in docs, but it can be found in Clickhouse code 346 # see `ClickHouse/src/Parsers/ParserCreate*.cpp` 347 ON_CLUSTER_TARGETS = { 348 "DATABASE", 349 "TABLE", 350 "VIEW", 351 "DICTIONARY", 352 "INDEX", 353 "FUNCTION", 354 "NAMED COLLECTION", 355 } 356 357 def safeconcat_sql(self, expression: exp.SafeConcat) -> str: 358 # Clickhouse errors out if we try to cast a NULL value to TEXT 359 return self.func( 360 "CONCAT", 361 *[ 362 exp.func("if", e.is_(exp.null()), e, exp.cast(e, "text")) 363 for e in t.cast(t.List[exp.Condition], expression.expressions) 364 ], 365 ) 366 367 def cte_sql(self, expression: exp.CTE) -> str: 368 if isinstance(expression.this, exp.Alias): 369 return self.sql(expression, "this") 370 371 return super().cte_sql(expression) 372 373 def after_limit_modifiers(self, expression: exp.Expression) -> t.List[str]: 374 return super().after_limit_modifiers(expression) + [ 375 self.seg("SETTINGS ") + self.expressions(expression, key="settings", flat=True) 376 if expression.args.get("settings") 377 else "", 378 self.seg("FORMAT ") + self.sql(expression, "format") 379 if expression.args.get("format") 380 else "", 381 ] 382 383 def parameterizedagg_sql(self, expression: exp.Anonymous) -> str: 384 params = self.expressions(expression, key="params", flat=True) 385 return self.func(expression.name, *expression.expressions) + f"({params})" 386 387 def placeholder_sql(self, expression: exp.Placeholder) -> str: 388 return f"{{{expression.name}: {self.sql(expression, 'kind')}}}" 389 390 def oncluster_sql(self, expression: exp.OnCluster) -> str: 391 return f"ON CLUSTER {self.sql(expression, 'this')}" 392 393 def createable_sql( 394 self, 395 expression: exp.Create, 396 locations: dict[exp.Properties.Location, list[exp.Property]], 397 ) -> str: 398 kind = self.sql(expression, "kind").upper() 399 if kind in self.ON_CLUSTER_TARGETS and locations.get(exp.Properties.Location.POST_NAME): 400 this_name = self.sql(expression.this, "this") 401 this_properties = " ".join( 402 [self.sql(prop) for prop in locations[exp.Properties.Location.POST_NAME]] 403 ) 404 this_schema = self.schema_columns_sql(expression.this) 405 return f"{this_name}{self.sep()}{this_properties}{self.sep()}{this_schema}" 406 return super().createable_sql(expression, locations)
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
TYPE_MAPPING =
{<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.ARRAY: 'ARRAY'>: 'Array', <Type.BIGINT: 'BIGINT'>: 'Int64', <Type.DATETIME64: 'DATETIME64'>: 'DateTime64', <Type.DOUBLE: 'DOUBLE'>: 'Float64', <Type.FLOAT: 'FLOAT'>: 'Float32', <Type.INT: 'INT'>: 'Int32', <Type.INT128: 'INT128'>: 'Int128', <Type.INT256: 'INT256'>: 'Int256', <Type.MAP: 'MAP'>: 'Map', <Type.NULLABLE: 'NULLABLE'>: 'Nullable', <Type.SMALLINT: 'SMALLINT'>: 'Int16', <Type.STRUCT: 'STRUCT'>: 'Tuple', <Type.TINYINT: 'TINYINT'>: 'Int8', <Type.UBIGINT: 'UBIGINT'>: 'UInt64', <Type.UINT: 'UINT'>: 'UInt32', <Type.UINT128: 'UINT128'>: 'UInt128', <Type.UINT256: 'UINT256'>: 'UInt256', <Type.USMALLINT: 'USMALLINT'>: 'UInt16', <Type.UTINYINT: 'UTINYINT'>: 'UInt8'}
TRANSFORMS =
{<class 'sqlglot.expressions.DateAdd'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function Generator.<lambda>>, <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.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.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.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <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.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AnyValue'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ApproxDistinct'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Array'>: <function inline_array_sql>, <class 'sqlglot.expressions.CastToStrType'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Final'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.Map'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.PartitionedByProperty'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Quantile'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.RegexpLike'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.StrPosition'>: <function ClickHouse.Generator.<lambda>>, <class 'sqlglot.expressions.Xor'>: <function ClickHouse.Generator.<lambda>>}
PROPERTIES_LOCATION =
{<class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Cluster'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DictRange'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PrimaryKey'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Property'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.ReturnsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatDelimitedProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatSerdeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.OnCluster'>: <Location.POST_NAME: 'POST_NAME'>}
ON_CLUSTER_TARGETS =
{'DATABASE', 'TABLE', 'INDEX', 'VIEW', 'FUNCTION', 'NAMED COLLECTION', 'DICTIONARY'}
357 def safeconcat_sql(self, expression: exp.SafeConcat) -> str: 358 # Clickhouse errors out if we try to cast a NULL value to TEXT 359 return self.func( 360 "CONCAT", 361 *[ 362 exp.func("if", e.is_(exp.null()), e, exp.cast(e, "text")) 363 for e in t.cast(t.List[exp.Condition], expression.expressions) 364 ], 365 )
373 def after_limit_modifiers(self, expression: exp.Expression) -> t.List[str]: 374 return super().after_limit_modifiers(expression) + [ 375 self.seg("SETTINGS ") + self.expressions(expression, key="settings", flat=True) 376 if expression.args.get("settings") 377 else "", 378 self.seg("FORMAT ") + self.sql(expression, "format") 379 if expression.args.get("format") 380 else "", 381 ]
def
createable_sql( self, expression: sqlglot.expressions.Create, locations: dict[sqlglot.expressions.Properties.Location, list[sqlglot.expressions.Property]]) -> str:
393 def createable_sql( 394 self, 395 expression: exp.Create, 396 locations: dict[exp.Properties.Location, list[exp.Property]], 397 ) -> str: 398 kind = self.sql(expression, "kind").upper() 399 if kind in self.ON_CLUSTER_TARGETS and locations.get(exp.Properties.Location.POST_NAME): 400 this_name = self.sql(expression.this, "this") 401 this_properties = " ".join( 402 [self.sql(prop) for prop in locations[exp.Properties.Location.POST_NAME]] 403 ) 404 this_schema = self.schema_columns_sql(expression.this) 405 return f"{this_name}{self.sep()}{this_properties}{self.sep()}{this_schema}" 406 return super().createable_sql(expression, locations)
@classmethod
def
can_identify(text: str, identify: str | bool = 'safe') -> bool:
253 @classmethod 254 def can_identify(cls, text: str, identify: str | bool = "safe") -> bool: 255 """Checks if text can be identified given an identify option. 256 257 Args: 258 text: The text to check. 259 identify: 260 "always" or `True`: Always returns true. 261 "safe": True if the identifier is case-insensitive. 262 263 Returns: 264 Whether or not the given text can be identified. 265 """ 266 if identify is True or identify == "always": 267 return True 268 269 if identify == "safe": 270 return not cls.case_sensitive(text) 271 272 return False
Checks if text can be identified given an identify option.
Arguments:
- text: The text to check.
- identify: "always" or
True: Always returns true. "safe": True if the identifier is case-insensitive.
Returns:
Whether or not the given text can be identified.
Inherited Members
- sqlglot.generator.Generator
- Generator
- NULL_ORDERING_SUPPORTED
- LOCKING_READS_SUPPORTED
- 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_FETCH
- RENAME_TABLE_WITH_DB
- 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
- VALUES_AS_TABLE
- STAR_MAPPING
- TIME_PART_SINGULARS
- TOKEN_MAPPING
- PARAMETER_TOKEN
- RESERVED_KEYWORDS
- WITH_SEPARATED_COMMENTS
- UNWRAPPED_INTERVAL_VALUES
- SENTINEL_LINE_BREAK
- INDEX_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- IDENTIFIERS_CAN_START_WITH_DIGIT
- ESCAPE_LINE_BREAK
- pretty
- identify
- normalize
- pad
- unsupported_level
- max_unsupported
- leading_comma
- max_text_width
- comments
- normalize_functions
- unsupported_messages
- generate
- 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
- autoincrementcolumnconstraint_sql
- compresscolumnconstraint_sql
- generatedasidentitycolumnconstraint_sql
- notnullcolumnconstraint_sql
- primarykeycolumnconstraint_sql
- uniquecolumnconstraint_sql
- create_sql
- clone_sql
- describe_sql
- prepend_ctes
- with_sql
- tablealias_sql
- bitstring_sql
- hexstring_sql
- bytestring_sql
- rawstring_sql
- datatypesize_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_sql
- likeproperty_sql
- fallbackproperty_sql
- journalproperty_sql
- freespaceproperty_sql
- checksumproperty_sql
- mergeblockratioproperty_sql
- datablocksizeproperty_sql
- blockcompressionproperty_sql
- isolatedloadingproperty_sql
- lockingproperty_sql
- withdataproperty_sql
- insert_sql
- intersect_sql
- intersect_op
- introducer_sql
- pseudotype_sql
- onconflict_sql
- returning_sql
- rowformatdelimitedproperty_sql
- withtablehint_sql
- indextablehint_sql
- table_sql
- tablesample_sql
- pivot_sql
- tuple_sql
- update_sql
- values_sql
- var_sql
- into_sql
- from_sql
- group_sql
- having_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
- select_sql
- schema_sql
- schema_columns_sql
- star_sql
- parameter_sql
- sessionparameter_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
- safebracket_sql
- all_sql
- any_sql
- exists_sql
- case_sql
- constraint_sql
- nextvaluefor_sql
- extract_sql
- trim_sql
- check_sql
- foreignkey_sql
- primarykey_sql
- if_sql
- matchagainst_sql
- jsonkeyvalue_sql
- jsonobject_sql
- openjsoncolumndef_sql
- openjson_sql
- in_sql
- in_unnest_op
- interval_sql
- return_sql
- reference_sql
- anonymous_sql
- paren_sql
- neg_sql
- not_sql
- alias_sql
- aliases_sql
- attimezone_sql
- add_sql
- and_sql
- xor_sql
- connector_sql
- bitwiseand_sql
- bitwiseleftshift_sql
- bitwisenot_sql
- bitwiseor_sql
- bitwiserightshift_sql
- bitwisexor_sql
- cast_sql
- currentdate_sql
- collate_sql
- command_sql
- comment_sql
- mergetreettlaction_sql
- mergetreettl_sql
- transaction_sql
- commit_sql
- rollback_sql
- altercolumn_sql
- renametable_sql
- altertable_sql
- droppartition_sql
- addconstraint_sql
- distinct_sql
- ignorenulls_sql
- respectnulls_sql
- intdiv_sql
- dpipe_sql
- safedpipe_sql
- div_sql
- overlaps_sql
- distance_sql
- dot_sql
- eq_sql
- escape_sql
- glob_sql
- gt_sql
- gte_sql
- ilike_sql
- ilikeany_sql
- is_sql
- like_sql
- likeany_sql
- similarto_sql
- lt_sql
- lte_sql
- mod_sql
- mul_sql
- neq_sql
- nullsafeeq_sql
- nullsafeneq_sql
- or_sql
- slice_sql
- sub_sql
- trycast_sql
- use_sql
- binary
- function_fallback_sql
- func
- format_args
- text_width
- format_time
- expressions
- op_expressions
- naked_property
- set_operation
- tag_sql
- token_sql
- userdefinedfunction_sql
- joinhint_sql
- kwarg_sql
- when_sql
- merge_sql
- tochar_sql
- dictproperty_sql
- dictrange_sql
- dictsubproperty_sql
- clusteredbyproperty_sql
- anyvalue_sql
- querytransform_sql
- indexconstraintoption_sql
- indexcolumnconstraint_sql