sqlglot.dialects.duckdb
1from __future__ import annotations 2 3import typing as t 4 5from sqlglot import exp, generator, parser, tokens, transforms 6from sqlglot.dialects.dialect import ( 7 Dialect, 8 NormalizationStrategy, 9 approx_count_distinct_sql, 10 arg_max_or_min_no_count, 11 arrow_json_extract_scalar_sql, 12 arrow_json_extract_sql, 13 binary_from_function, 14 bool_xor_sql, 15 date_trunc_to_time, 16 datestrtodate_sql, 17 encode_decode_sql, 18 format_time_lambda, 19 inline_array_sql, 20 no_comment_column_constraint_sql, 21 no_properties_sql, 22 no_safe_divide_sql, 23 no_timestamp_sql, 24 pivot_column_names, 25 prepend_dollar_to_path, 26 regexp_extract_sql, 27 rename_func, 28 str_position_sql, 29 str_to_time_sql, 30 timestamptrunc_sql, 31 timestrtotime_sql, 32) 33from sqlglot.helper import flatten, seq_get 34from sqlglot.tokens import TokenType 35 36 37def _ts_or_ds_add_sql(self: DuckDB.Generator, expression: exp.TsOrDsAdd) -> str: 38 this = self.sql(expression, "this") 39 unit = self.sql(expression, "unit").strip("'") or "DAY" 40 interval = self.sql(exp.Interval(this=expression.expression, unit=unit)) 41 return f"CAST({this} AS {self.sql(expression.return_type)}) + {interval}" 42 43 44def _date_delta_sql(self: DuckDB.Generator, expression: exp.DateAdd | exp.DateSub) -> str: 45 this = self.sql(expression, "this") 46 unit = self.sql(expression, "unit").strip("'") or "DAY" 47 op = "+" if isinstance(expression, exp.DateAdd) else "-" 48 return f"{this} {op} {self.sql(exp.Interval(this=expression.expression, unit=unit))}" 49 50 51# BigQuery -> DuckDB conversion for the DATE function 52def _date_sql(self: DuckDB.Generator, expression: exp.Date) -> str: 53 result = f"CAST({self.sql(expression, 'this')} AS DATE)" 54 zone = self.sql(expression, "zone") 55 56 if zone: 57 date_str = self.func("STRFTIME", result, "'%d/%m/%Y'") 58 date_str = f"{date_str} || ' ' || {zone}" 59 60 # This will create a TIMESTAMP with time zone information 61 result = self.func("STRPTIME", date_str, "'%d/%m/%Y %Z'") 62 63 return result 64 65 66def _array_sort_sql(self: DuckDB.Generator, expression: exp.ArraySort) -> str: 67 if expression.expression: 68 self.unsupported("DUCKDB ARRAY_SORT does not support a comparator") 69 return f"ARRAY_SORT({self.sql(expression, 'this')})" 70 71 72def _sort_array_sql(self: DuckDB.Generator, expression: exp.SortArray) -> str: 73 this = self.sql(expression, "this") 74 if expression.args.get("asc") == exp.false(): 75 return f"ARRAY_REVERSE_SORT({this})" 76 return f"ARRAY_SORT({this})" 77 78 79def _sort_array_reverse(args: t.List) -> exp.Expression: 80 return exp.SortArray(this=seq_get(args, 0), asc=exp.false()) 81 82 83def _parse_date_diff(args: t.List) -> exp.Expression: 84 return exp.DateDiff(this=seq_get(args, 2), expression=seq_get(args, 1), unit=seq_get(args, 0)) 85 86 87def _parse_make_timestamp(args: t.List) -> exp.Expression: 88 if len(args) == 1: 89 return exp.UnixToTime(this=seq_get(args, 0), scale=exp.UnixToTime.MICROS) 90 91 return exp.TimestampFromParts( 92 year=seq_get(args, 0), 93 month=seq_get(args, 1), 94 day=seq_get(args, 2), 95 hour=seq_get(args, 3), 96 min=seq_get(args, 4), 97 sec=seq_get(args, 5), 98 ) 99 100 101def _struct_sql(self: DuckDB.Generator, expression: exp.Struct) -> str: 102 args: t.List[str] = [] 103 for expr in expression.expressions: 104 if isinstance(expr, exp.Alias): 105 key = expr.alias 106 value = expr.this 107 else: 108 key = expr.name or expr.this.name 109 if isinstance(expr, exp.Bracket): 110 value = expr.expressions[0] 111 else: 112 value = expr.expression 113 114 args.append(f"{self.sql(exp.Literal.string(key))}: {self.sql(value)}") 115 116 return f"{{{', '.join(args)}}}" 117 118 119def _datatype_sql(self: DuckDB.Generator, expression: exp.DataType) -> str: 120 if expression.is_type("array"): 121 return f"{self.expressions(expression, flat=True)}[]" 122 123 # Type TIMESTAMP / TIME WITH TIME ZONE does not support any modifiers 124 if expression.is_type("timestamptz", "timetz"): 125 return expression.this.value 126 127 return self.datatype_sql(expression) 128 129 130def _json_format_sql(self: DuckDB.Generator, expression: exp.JSONFormat) -> str: 131 sql = self.func("TO_JSON", expression.this, expression.args.get("options")) 132 return f"CAST({sql} AS TEXT)" 133 134 135def _unix_to_time_sql(self: DuckDB.Generator, expression: exp.UnixToTime) -> str: 136 scale = expression.args.get("scale") 137 timestamp = self.sql(expression, "this") 138 if scale in (None, exp.UnixToTime.SECONDS): 139 return f"TO_TIMESTAMP({timestamp})" 140 if scale == exp.UnixToTime.MILLIS: 141 return f"EPOCH_MS({timestamp})" 142 if scale == exp.UnixToTime.MICROS: 143 return f"MAKE_TIMESTAMP({timestamp})" 144 145 return f"TO_TIMESTAMP({timestamp} / POW(10, {scale}))" 146 147 148def _rename_unless_within_group( 149 a: str, b: str 150) -> t.Callable[[DuckDB.Generator, exp.Expression], str]: 151 return ( 152 lambda self, expression: self.func(a, *flatten(expression.args.values())) 153 if isinstance(expression.find_ancestor(exp.Select, exp.WithinGroup), exp.WithinGroup) 154 else self.func(b, *flatten(expression.args.values())) 155 ) 156 157 158def _parse_struct_pack(args: t.List) -> exp.Struct: 159 args_with_columns_as_identifiers = [ 160 exp.PropertyEQ(this=arg.this.this, expression=arg.expression) for arg in args 161 ] 162 return exp.Struct.from_arg_list(args_with_columns_as_identifiers) 163 164 165class DuckDB(Dialect): 166 NULL_ORDERING = "nulls_are_last" 167 SUPPORTS_USER_DEFINED_TYPES = False 168 SAFE_DIVISION = True 169 INDEX_OFFSET = 1 170 CONCAT_COALESCE = True 171 172 # https://duckdb.org/docs/sql/introduction.html#creating-a-new-table 173 NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE 174 175 class Tokenizer(tokens.Tokenizer): 176 KEYWORDS = { 177 **tokens.Tokenizer.KEYWORDS, 178 "//": TokenType.DIV, 179 "ATTACH": TokenType.COMMAND, 180 "BINARY": TokenType.VARBINARY, 181 "BITSTRING": TokenType.BIT, 182 "BPCHAR": TokenType.TEXT, 183 "CHAR": TokenType.TEXT, 184 "CHARACTER VARYING": TokenType.TEXT, 185 "EXCLUDE": TokenType.EXCEPT, 186 "LOGICAL": TokenType.BOOLEAN, 187 "PIVOT_WIDER": TokenType.PIVOT, 188 "SIGNED": TokenType.INT, 189 "STRING": TokenType.VARCHAR, 190 "UBIGINT": TokenType.UBIGINT, 191 "UINTEGER": TokenType.UINT, 192 "USMALLINT": TokenType.USMALLINT, 193 "UTINYINT": TokenType.UTINYINT, 194 "TIMESTAMP_S": TokenType.TIMESTAMP_S, 195 "TIMESTAMP_MS": TokenType.TIMESTAMP_MS, 196 "TIMESTAMP_NS": TokenType.TIMESTAMP_NS, 197 "TIMESTAMP_US": TokenType.TIMESTAMP, 198 } 199 200 SINGLE_TOKENS = { 201 **tokens.Tokenizer.SINGLE_TOKENS, 202 "$": TokenType.PARAMETER, 203 } 204 205 class Parser(parser.Parser): 206 BITWISE = { 207 **parser.Parser.BITWISE, 208 TokenType.TILDA: exp.RegexpLike, 209 } 210 211 FUNCTIONS = { 212 **parser.Parser.FUNCTIONS, 213 "ARRAY_HAS": exp.ArrayContains.from_arg_list, 214 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, 215 "ARRAY_SORT": exp.SortArray.from_arg_list, 216 "ARRAY_REVERSE_SORT": _sort_array_reverse, 217 "DATEDIFF": _parse_date_diff, 218 "DATE_DIFF": _parse_date_diff, 219 "DATE_TRUNC": date_trunc_to_time, 220 "DATETRUNC": date_trunc_to_time, 221 "DECODE": lambda args: exp.Decode( 222 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") 223 ), 224 "ENCODE": lambda args: exp.Encode( 225 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") 226 ), 227 "EPOCH": exp.TimeToUnix.from_arg_list, 228 "EPOCH_MS": lambda args: exp.UnixToTime( 229 this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS 230 ), 231 "JSON": exp.ParseJSON.from_arg_list, 232 "LIST_HAS": exp.ArrayContains.from_arg_list, 233 "LIST_REVERSE_SORT": _sort_array_reverse, 234 "LIST_SORT": exp.SortArray.from_arg_list, 235 "LIST_VALUE": exp.Array.from_arg_list, 236 "MAKE_TIME": exp.TimeFromParts.from_arg_list, 237 "MAKE_TIMESTAMP": _parse_make_timestamp, 238 "MEDIAN": lambda args: exp.PercentileCont( 239 this=seq_get(args, 0), expression=exp.Literal.number(0.5) 240 ), 241 "QUANTILE_CONT": exp.PercentileCont.from_arg_list, 242 "QUANTILE_DISC": exp.PercentileDisc.from_arg_list, 243 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( 244 this=seq_get(args, 0), expression=seq_get(args, 1), group=seq_get(args, 2) 245 ), 246 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, 247 "REGEXP_REPLACE": lambda args: exp.RegexpReplace( 248 this=seq_get(args, 0), 249 expression=seq_get(args, 1), 250 replacement=seq_get(args, 2), 251 modifiers=seq_get(args, 3), 252 ), 253 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), 254 "STRING_SPLIT": exp.Split.from_arg_list, 255 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, 256 "STRING_TO_ARRAY": exp.Split.from_arg_list, 257 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), 258 "STRUCT_PACK": _parse_struct_pack, 259 "STR_SPLIT": exp.Split.from_arg_list, 260 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, 261 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, 262 "UNNEST": exp.Explode.from_arg_list, 263 "XOR": binary_from_function(exp.BitwiseXor), 264 } 265 266 FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() 267 FUNCTION_PARSERS.pop("DECODE", None) 268 269 TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - { 270 TokenType.SEMI, 271 TokenType.ANTI, 272 } 273 274 PLACEHOLDER_PARSERS = { 275 **parser.Parser.PLACEHOLDER_PARSERS, 276 TokenType.PARAMETER: lambda self: self.expression(exp.Placeholder, this=self._prev.text) 277 if self._match(TokenType.NUMBER) or self._match_set(self.ID_VAR_TOKENS) 278 else None, 279 } 280 281 def _parse_types( 282 self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True 283 ) -> t.Optional[exp.Expression]: 284 this = super()._parse_types( 285 check_func=check_func, schema=schema, allow_identifiers=allow_identifiers 286 ) 287 288 # DuckDB treats NUMERIC and DECIMAL without precision as DECIMAL(18, 3) 289 # See: https://duckdb.org/docs/sql/data_types/numeric 290 if ( 291 isinstance(this, exp.DataType) 292 and this.is_type("numeric", "decimal") 293 and not this.expressions 294 ): 295 return exp.DataType.build("DECIMAL(18, 3)") 296 297 return this 298 299 def _parse_struct_types(self, type_required: bool = False) -> t.Optional[exp.Expression]: 300 return self._parse_field_def() 301 302 def _pivot_column_names(self, aggregations: t.List[exp.Expression]) -> t.List[str]: 303 if len(aggregations) == 1: 304 return super()._pivot_column_names(aggregations) 305 return pivot_column_names(aggregations, dialect="duckdb") 306 307 class Generator(generator.Generator): 308 JOIN_HINTS = False 309 TABLE_HINTS = False 310 QUERY_HINTS = False 311 LIMIT_FETCH = "LIMIT" 312 STRUCT_DELIMITER = ("(", ")") 313 RENAME_TABLE_WITH_DB = False 314 NVL2_SUPPORTED = False 315 SEMI_ANTI_JOIN_WITH_SIDE = False 316 TABLESAMPLE_KEYWORDS = "USING SAMPLE" 317 TABLESAMPLE_SEED_KEYWORD = "REPEATABLE" 318 LAST_DAY_SUPPORTS_DATE_PART = False 319 JSON_KEY_VALUE_PAIR_SEP = "," 320 321 TRANSFORMS = { 322 **generator.Generator.TRANSFORMS, 323 exp.ApproxDistinct: approx_count_distinct_sql, 324 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) 325 if e.expressions and e.expressions[0].find(exp.Select) 326 else inline_array_sql(self, e), 327 exp.ArraySize: rename_func("ARRAY_LENGTH"), 328 exp.ArgMax: arg_max_or_min_no_count("ARG_MAX"), 329 exp.ArgMin: arg_max_or_min_no_count("ARG_MIN"), 330 exp.ArraySort: _array_sort_sql, 331 exp.ArraySum: rename_func("LIST_SUM"), 332 exp.BitwiseXor: rename_func("XOR"), 333 exp.CommentColumnConstraint: no_comment_column_constraint_sql, 334 exp.CurrentDate: lambda self, e: "CURRENT_DATE", 335 exp.CurrentTime: lambda self, e: "CURRENT_TIME", 336 exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP", 337 exp.DayOfMonth: rename_func("DAYOFMONTH"), 338 exp.DayOfWeek: rename_func("DAYOFWEEK"), 339 exp.DayOfYear: rename_func("DAYOFYEAR"), 340 exp.DataType: _datatype_sql, 341 exp.Date: _date_sql, 342 exp.DateAdd: _date_delta_sql, 343 exp.DateFromParts: rename_func("MAKE_DATE"), 344 exp.DateSub: _date_delta_sql, 345 exp.DateDiff: lambda self, e: self.func( 346 "DATE_DIFF", f"'{e.args.get('unit') or 'DAY'}'", e.expression, e.this 347 ), 348 exp.DateStrToDate: datestrtodate_sql, 349 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.DATEINT_FORMAT}) AS INT)", 350 exp.Decode: lambda self, e: encode_decode_sql(self, e, "DECODE", replace=False), 351 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.DATEINT_FORMAT}) AS DATE)", 352 exp.Encode: lambda self, e: encode_decode_sql(self, e, "ENCODE", replace=False), 353 exp.Explode: rename_func("UNNEST"), 354 exp.IntDiv: lambda self, e: self.binary(e, "//"), 355 exp.IsInf: rename_func("ISINF"), 356 exp.IsNan: rename_func("ISNAN"), 357 exp.JSONBExtract: arrow_json_extract_sql, 358 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, 359 exp.JSONExtract: arrow_json_extract_sql, 360 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, 361 exp.JSONFormat: _json_format_sql, 362 exp.LogicalOr: rename_func("BOOL_OR"), 363 exp.LogicalAnd: rename_func("BOOL_AND"), 364 exp.MonthsBetween: lambda self, e: self.func( 365 "DATEDIFF", 366 "'month'", 367 exp.cast(e.expression, "timestamp", copy=True), 368 exp.cast(e.this, "timestamp", copy=True), 369 ), 370 exp.ParseJSON: rename_func("JSON"), 371 exp.PercentileCont: _rename_unless_within_group("PERCENTILE_CONT", "QUANTILE_CONT"), 372 exp.PercentileDisc: _rename_unless_within_group("PERCENTILE_DISC", "QUANTILE_DISC"), 373 # DuckDB doesn't allow qualified columns inside of PIVOT expressions. 374 # See: https://github.com/duckdb/duckdb/blob/671faf92411182f81dce42ac43de8bfb05d9909e/src/planner/binder/tableref/bind_pivot.cpp#L61-L62 375 exp.Pivot: transforms.preprocess([transforms.unqualify_columns]), 376 exp.Properties: no_properties_sql, 377 exp.RegexpExtract: regexp_extract_sql, 378 exp.RegexpReplace: lambda self, e: self.func( 379 "REGEXP_REPLACE", 380 e.this, 381 e.expression, 382 e.args.get("replacement"), 383 e.args.get("modifiers"), 384 ), 385 exp.RegexpLike: rename_func("REGEXP_MATCHES"), 386 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), 387 exp.Rand: rename_func("RANDOM"), 388 exp.SafeDivide: no_safe_divide_sql, 389 exp.Split: rename_func("STR_SPLIT"), 390 exp.SortArray: _sort_array_sql, 391 exp.StrPosition: str_position_sql, 392 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", 393 exp.StrToTime: str_to_time_sql, 394 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", 395 exp.Struct: _struct_sql, 396 exp.Timestamp: no_timestamp_sql, 397 exp.TimestampDiff: lambda self, e: self.func( 398 "DATE_DIFF", exp.Literal.string(e.unit), e.expression, e.this 399 ), 400 exp.TimestampTrunc: timestamptrunc_sql, 401 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", 402 exp.TimeStrToTime: timestrtotime_sql, 403 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", 404 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", 405 exp.TimeToUnix: rename_func("EPOCH"), 406 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", 407 exp.TsOrDsAdd: _ts_or_ds_add_sql, 408 exp.TsOrDsDiff: lambda self, e: self.func( 409 "DATE_DIFF", 410 f"'{e.args.get('unit') or 'DAY'}'", 411 exp.cast(e.expression, "TIMESTAMP"), 412 exp.cast(e.this, "TIMESTAMP"), 413 ), 414 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", 415 exp.UnixToTime: _unix_to_time_sql, 416 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", 417 exp.VariancePop: rename_func("VAR_POP"), 418 exp.WeekOfYear: rename_func("WEEKOFYEAR"), 419 exp.Xor: bool_xor_sql, 420 } 421 422 TYPE_MAPPING = { 423 **generator.Generator.TYPE_MAPPING, 424 exp.DataType.Type.BINARY: "BLOB", 425 exp.DataType.Type.CHAR: "TEXT", 426 exp.DataType.Type.FLOAT: "REAL", 427 exp.DataType.Type.NCHAR: "TEXT", 428 exp.DataType.Type.NVARCHAR: "TEXT", 429 exp.DataType.Type.UINT: "UINTEGER", 430 exp.DataType.Type.VARBINARY: "BLOB", 431 exp.DataType.Type.VARCHAR: "TEXT", 432 exp.DataType.Type.TIMESTAMP_S: "TIMESTAMP_S", 433 exp.DataType.Type.TIMESTAMP_MS: "TIMESTAMP_MS", 434 exp.DataType.Type.TIMESTAMP_NS: "TIMESTAMP_NS", 435 } 436 437 STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"} 438 439 UNWRAPPED_INTERVAL_VALUES = (exp.Column, exp.Literal, exp.Paren) 440 441 PROPERTIES_LOCATION = { 442 **generator.Generator.PROPERTIES_LOCATION, 443 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 444 } 445 446 def timefromparts_sql(self, expression: exp.TimeFromParts) -> str: 447 nano = expression.args.get("nano") 448 if nano is not None: 449 expression.set( 450 "sec", expression.args["sec"] + nano.pop() / exp.Literal.number(1000000000.0) 451 ) 452 453 return rename_func("MAKE_TIME")(self, expression) 454 455 def timestampfromparts_sql(self, expression: exp.TimestampFromParts) -> str: 456 sec = expression.args["sec"] 457 458 milli = expression.args.get("milli") 459 if milli is not None: 460 sec += milli.pop() / exp.Literal.number(1000.0) 461 462 nano = expression.args.get("nano") 463 if nano is not None: 464 sec += nano.pop() / exp.Literal.number(1000000000.0) 465 466 if milli or nano: 467 expression.set("sec", sec) 468 469 return rename_func("MAKE_TIMESTAMP")(self, expression) 470 471 def tablesample_sql( 472 self, 473 expression: exp.TableSample, 474 sep: str = " AS ", 475 tablesample_keyword: t.Optional[str] = None, 476 ) -> str: 477 if not isinstance(expression.parent, exp.Select): 478 # This sample clause only applies to a single source, not the entire resulting relation 479 tablesample_keyword = "TABLESAMPLE" 480 481 return super().tablesample_sql( 482 expression, sep=sep, tablesample_keyword=tablesample_keyword 483 ) 484 485 def getpath_sql(self, expression: exp.GetPath) -> str: 486 expression = prepend_dollar_to_path(expression) 487 return f"{self.sql(expression, 'this')} -> {self.sql(expression, 'expression')}" 488 489 def interval_sql(self, expression: exp.Interval) -> str: 490 multiplier: t.Optional[int] = None 491 unit = expression.text("unit").lower() 492 493 if unit.startswith("week"): 494 multiplier = 7 495 if unit.startswith("quarter"): 496 multiplier = 90 497 498 if multiplier: 499 return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})" 500 501 return super().interval_sql(expression) 502 503 def columndef_sql(self, expression: exp.ColumnDef, sep: str = " ") -> str: 504 if isinstance(expression.parent, exp.UserDefinedFunction): 505 return self.sql(expression, "this") 506 return super().columndef_sql(expression, sep) 507 508 def placeholder_sql(self, expression: exp.Placeholder) -> str: 509 return f"${expression.name}" if expression.name else "?"
166class DuckDB(Dialect): 167 NULL_ORDERING = "nulls_are_last" 168 SUPPORTS_USER_DEFINED_TYPES = False 169 SAFE_DIVISION = True 170 INDEX_OFFSET = 1 171 CONCAT_COALESCE = True 172 173 # https://duckdb.org/docs/sql/introduction.html#creating-a-new-table 174 NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE 175 176 class Tokenizer(tokens.Tokenizer): 177 KEYWORDS = { 178 **tokens.Tokenizer.KEYWORDS, 179 "//": TokenType.DIV, 180 "ATTACH": TokenType.COMMAND, 181 "BINARY": TokenType.VARBINARY, 182 "BITSTRING": TokenType.BIT, 183 "BPCHAR": TokenType.TEXT, 184 "CHAR": TokenType.TEXT, 185 "CHARACTER VARYING": TokenType.TEXT, 186 "EXCLUDE": TokenType.EXCEPT, 187 "LOGICAL": TokenType.BOOLEAN, 188 "PIVOT_WIDER": TokenType.PIVOT, 189 "SIGNED": TokenType.INT, 190 "STRING": TokenType.VARCHAR, 191 "UBIGINT": TokenType.UBIGINT, 192 "UINTEGER": TokenType.UINT, 193 "USMALLINT": TokenType.USMALLINT, 194 "UTINYINT": TokenType.UTINYINT, 195 "TIMESTAMP_S": TokenType.TIMESTAMP_S, 196 "TIMESTAMP_MS": TokenType.TIMESTAMP_MS, 197 "TIMESTAMP_NS": TokenType.TIMESTAMP_NS, 198 "TIMESTAMP_US": TokenType.TIMESTAMP, 199 } 200 201 SINGLE_TOKENS = { 202 **tokens.Tokenizer.SINGLE_TOKENS, 203 "$": TokenType.PARAMETER, 204 } 205 206 class Parser(parser.Parser): 207 BITWISE = { 208 **parser.Parser.BITWISE, 209 TokenType.TILDA: exp.RegexpLike, 210 } 211 212 FUNCTIONS = { 213 **parser.Parser.FUNCTIONS, 214 "ARRAY_HAS": exp.ArrayContains.from_arg_list, 215 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, 216 "ARRAY_SORT": exp.SortArray.from_arg_list, 217 "ARRAY_REVERSE_SORT": _sort_array_reverse, 218 "DATEDIFF": _parse_date_diff, 219 "DATE_DIFF": _parse_date_diff, 220 "DATE_TRUNC": date_trunc_to_time, 221 "DATETRUNC": date_trunc_to_time, 222 "DECODE": lambda args: exp.Decode( 223 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") 224 ), 225 "ENCODE": lambda args: exp.Encode( 226 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") 227 ), 228 "EPOCH": exp.TimeToUnix.from_arg_list, 229 "EPOCH_MS": lambda args: exp.UnixToTime( 230 this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS 231 ), 232 "JSON": exp.ParseJSON.from_arg_list, 233 "LIST_HAS": exp.ArrayContains.from_arg_list, 234 "LIST_REVERSE_SORT": _sort_array_reverse, 235 "LIST_SORT": exp.SortArray.from_arg_list, 236 "LIST_VALUE": exp.Array.from_arg_list, 237 "MAKE_TIME": exp.TimeFromParts.from_arg_list, 238 "MAKE_TIMESTAMP": _parse_make_timestamp, 239 "MEDIAN": lambda args: exp.PercentileCont( 240 this=seq_get(args, 0), expression=exp.Literal.number(0.5) 241 ), 242 "QUANTILE_CONT": exp.PercentileCont.from_arg_list, 243 "QUANTILE_DISC": exp.PercentileDisc.from_arg_list, 244 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( 245 this=seq_get(args, 0), expression=seq_get(args, 1), group=seq_get(args, 2) 246 ), 247 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, 248 "REGEXP_REPLACE": lambda args: exp.RegexpReplace( 249 this=seq_get(args, 0), 250 expression=seq_get(args, 1), 251 replacement=seq_get(args, 2), 252 modifiers=seq_get(args, 3), 253 ), 254 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), 255 "STRING_SPLIT": exp.Split.from_arg_list, 256 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, 257 "STRING_TO_ARRAY": exp.Split.from_arg_list, 258 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), 259 "STRUCT_PACK": _parse_struct_pack, 260 "STR_SPLIT": exp.Split.from_arg_list, 261 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, 262 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, 263 "UNNEST": exp.Explode.from_arg_list, 264 "XOR": binary_from_function(exp.BitwiseXor), 265 } 266 267 FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() 268 FUNCTION_PARSERS.pop("DECODE", None) 269 270 TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - { 271 TokenType.SEMI, 272 TokenType.ANTI, 273 } 274 275 PLACEHOLDER_PARSERS = { 276 **parser.Parser.PLACEHOLDER_PARSERS, 277 TokenType.PARAMETER: lambda self: self.expression(exp.Placeholder, this=self._prev.text) 278 if self._match(TokenType.NUMBER) or self._match_set(self.ID_VAR_TOKENS) 279 else None, 280 } 281 282 def _parse_types( 283 self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True 284 ) -> t.Optional[exp.Expression]: 285 this = super()._parse_types( 286 check_func=check_func, schema=schema, allow_identifiers=allow_identifiers 287 ) 288 289 # DuckDB treats NUMERIC and DECIMAL without precision as DECIMAL(18, 3) 290 # See: https://duckdb.org/docs/sql/data_types/numeric 291 if ( 292 isinstance(this, exp.DataType) 293 and this.is_type("numeric", "decimal") 294 and not this.expressions 295 ): 296 return exp.DataType.build("DECIMAL(18, 3)") 297 298 return this 299 300 def _parse_struct_types(self, type_required: bool = False) -> t.Optional[exp.Expression]: 301 return self._parse_field_def() 302 303 def _pivot_column_names(self, aggregations: t.List[exp.Expression]) -> t.List[str]: 304 if len(aggregations) == 1: 305 return super()._pivot_column_names(aggregations) 306 return pivot_column_names(aggregations, dialect="duckdb") 307 308 class Generator(generator.Generator): 309 JOIN_HINTS = False 310 TABLE_HINTS = False 311 QUERY_HINTS = False 312 LIMIT_FETCH = "LIMIT" 313 STRUCT_DELIMITER = ("(", ")") 314 RENAME_TABLE_WITH_DB = False 315 NVL2_SUPPORTED = False 316 SEMI_ANTI_JOIN_WITH_SIDE = False 317 TABLESAMPLE_KEYWORDS = "USING SAMPLE" 318 TABLESAMPLE_SEED_KEYWORD = "REPEATABLE" 319 LAST_DAY_SUPPORTS_DATE_PART = False 320 JSON_KEY_VALUE_PAIR_SEP = "," 321 322 TRANSFORMS = { 323 **generator.Generator.TRANSFORMS, 324 exp.ApproxDistinct: approx_count_distinct_sql, 325 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) 326 if e.expressions and e.expressions[0].find(exp.Select) 327 else inline_array_sql(self, e), 328 exp.ArraySize: rename_func("ARRAY_LENGTH"), 329 exp.ArgMax: arg_max_or_min_no_count("ARG_MAX"), 330 exp.ArgMin: arg_max_or_min_no_count("ARG_MIN"), 331 exp.ArraySort: _array_sort_sql, 332 exp.ArraySum: rename_func("LIST_SUM"), 333 exp.BitwiseXor: rename_func("XOR"), 334 exp.CommentColumnConstraint: no_comment_column_constraint_sql, 335 exp.CurrentDate: lambda self, e: "CURRENT_DATE", 336 exp.CurrentTime: lambda self, e: "CURRENT_TIME", 337 exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP", 338 exp.DayOfMonth: rename_func("DAYOFMONTH"), 339 exp.DayOfWeek: rename_func("DAYOFWEEK"), 340 exp.DayOfYear: rename_func("DAYOFYEAR"), 341 exp.DataType: _datatype_sql, 342 exp.Date: _date_sql, 343 exp.DateAdd: _date_delta_sql, 344 exp.DateFromParts: rename_func("MAKE_DATE"), 345 exp.DateSub: _date_delta_sql, 346 exp.DateDiff: lambda self, e: self.func( 347 "DATE_DIFF", f"'{e.args.get('unit') or 'DAY'}'", e.expression, e.this 348 ), 349 exp.DateStrToDate: datestrtodate_sql, 350 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.DATEINT_FORMAT}) AS INT)", 351 exp.Decode: lambda self, e: encode_decode_sql(self, e, "DECODE", replace=False), 352 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.DATEINT_FORMAT}) AS DATE)", 353 exp.Encode: lambda self, e: encode_decode_sql(self, e, "ENCODE", replace=False), 354 exp.Explode: rename_func("UNNEST"), 355 exp.IntDiv: lambda self, e: self.binary(e, "//"), 356 exp.IsInf: rename_func("ISINF"), 357 exp.IsNan: rename_func("ISNAN"), 358 exp.JSONBExtract: arrow_json_extract_sql, 359 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, 360 exp.JSONExtract: arrow_json_extract_sql, 361 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, 362 exp.JSONFormat: _json_format_sql, 363 exp.LogicalOr: rename_func("BOOL_OR"), 364 exp.LogicalAnd: rename_func("BOOL_AND"), 365 exp.MonthsBetween: lambda self, e: self.func( 366 "DATEDIFF", 367 "'month'", 368 exp.cast(e.expression, "timestamp", copy=True), 369 exp.cast(e.this, "timestamp", copy=True), 370 ), 371 exp.ParseJSON: rename_func("JSON"), 372 exp.PercentileCont: _rename_unless_within_group("PERCENTILE_CONT", "QUANTILE_CONT"), 373 exp.PercentileDisc: _rename_unless_within_group("PERCENTILE_DISC", "QUANTILE_DISC"), 374 # DuckDB doesn't allow qualified columns inside of PIVOT expressions. 375 # See: https://github.com/duckdb/duckdb/blob/671faf92411182f81dce42ac43de8bfb05d9909e/src/planner/binder/tableref/bind_pivot.cpp#L61-L62 376 exp.Pivot: transforms.preprocess([transforms.unqualify_columns]), 377 exp.Properties: no_properties_sql, 378 exp.RegexpExtract: regexp_extract_sql, 379 exp.RegexpReplace: lambda self, e: self.func( 380 "REGEXP_REPLACE", 381 e.this, 382 e.expression, 383 e.args.get("replacement"), 384 e.args.get("modifiers"), 385 ), 386 exp.RegexpLike: rename_func("REGEXP_MATCHES"), 387 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), 388 exp.Rand: rename_func("RANDOM"), 389 exp.SafeDivide: no_safe_divide_sql, 390 exp.Split: rename_func("STR_SPLIT"), 391 exp.SortArray: _sort_array_sql, 392 exp.StrPosition: str_position_sql, 393 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", 394 exp.StrToTime: str_to_time_sql, 395 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", 396 exp.Struct: _struct_sql, 397 exp.Timestamp: no_timestamp_sql, 398 exp.TimestampDiff: lambda self, e: self.func( 399 "DATE_DIFF", exp.Literal.string(e.unit), e.expression, e.this 400 ), 401 exp.TimestampTrunc: timestamptrunc_sql, 402 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", 403 exp.TimeStrToTime: timestrtotime_sql, 404 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", 405 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", 406 exp.TimeToUnix: rename_func("EPOCH"), 407 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", 408 exp.TsOrDsAdd: _ts_or_ds_add_sql, 409 exp.TsOrDsDiff: lambda self, e: self.func( 410 "DATE_DIFF", 411 f"'{e.args.get('unit') or 'DAY'}'", 412 exp.cast(e.expression, "TIMESTAMP"), 413 exp.cast(e.this, "TIMESTAMP"), 414 ), 415 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", 416 exp.UnixToTime: _unix_to_time_sql, 417 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", 418 exp.VariancePop: rename_func("VAR_POP"), 419 exp.WeekOfYear: rename_func("WEEKOFYEAR"), 420 exp.Xor: bool_xor_sql, 421 } 422 423 TYPE_MAPPING = { 424 **generator.Generator.TYPE_MAPPING, 425 exp.DataType.Type.BINARY: "BLOB", 426 exp.DataType.Type.CHAR: "TEXT", 427 exp.DataType.Type.FLOAT: "REAL", 428 exp.DataType.Type.NCHAR: "TEXT", 429 exp.DataType.Type.NVARCHAR: "TEXT", 430 exp.DataType.Type.UINT: "UINTEGER", 431 exp.DataType.Type.VARBINARY: "BLOB", 432 exp.DataType.Type.VARCHAR: "TEXT", 433 exp.DataType.Type.TIMESTAMP_S: "TIMESTAMP_S", 434 exp.DataType.Type.TIMESTAMP_MS: "TIMESTAMP_MS", 435 exp.DataType.Type.TIMESTAMP_NS: "TIMESTAMP_NS", 436 } 437 438 STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"} 439 440 UNWRAPPED_INTERVAL_VALUES = (exp.Column, exp.Literal, exp.Paren) 441 442 PROPERTIES_LOCATION = { 443 **generator.Generator.PROPERTIES_LOCATION, 444 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 445 } 446 447 def timefromparts_sql(self, expression: exp.TimeFromParts) -> str: 448 nano = expression.args.get("nano") 449 if nano is not None: 450 expression.set( 451 "sec", expression.args["sec"] + nano.pop() / exp.Literal.number(1000000000.0) 452 ) 453 454 return rename_func("MAKE_TIME")(self, expression) 455 456 def timestampfromparts_sql(self, expression: exp.TimestampFromParts) -> str: 457 sec = expression.args["sec"] 458 459 milli = expression.args.get("milli") 460 if milli is not None: 461 sec += milli.pop() / exp.Literal.number(1000.0) 462 463 nano = expression.args.get("nano") 464 if nano is not None: 465 sec += nano.pop() / exp.Literal.number(1000000000.0) 466 467 if milli or nano: 468 expression.set("sec", sec) 469 470 return rename_func("MAKE_TIMESTAMP")(self, expression) 471 472 def tablesample_sql( 473 self, 474 expression: exp.TableSample, 475 sep: str = " AS ", 476 tablesample_keyword: t.Optional[str] = None, 477 ) -> str: 478 if not isinstance(expression.parent, exp.Select): 479 # This sample clause only applies to a single source, not the entire resulting relation 480 tablesample_keyword = "TABLESAMPLE" 481 482 return super().tablesample_sql( 483 expression, sep=sep, tablesample_keyword=tablesample_keyword 484 ) 485 486 def getpath_sql(self, expression: exp.GetPath) -> str: 487 expression = prepend_dollar_to_path(expression) 488 return f"{self.sql(expression, 'this')} -> {self.sql(expression, 'expression')}" 489 490 def interval_sql(self, expression: exp.Interval) -> str: 491 multiplier: t.Optional[int] = None 492 unit = expression.text("unit").lower() 493 494 if unit.startswith("week"): 495 multiplier = 7 496 if unit.startswith("quarter"): 497 multiplier = 90 498 499 if multiplier: 500 return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})" 501 502 return super().interval_sql(expression) 503 504 def columndef_sql(self, expression: exp.ColumnDef, sep: str = " ") -> str: 505 if isinstance(expression.parent, exp.UserDefinedFunction): 506 return self.sql(expression, "this") 507 return super().columndef_sql(expression, sep) 508 509 def placeholder_sql(self, expression: exp.Placeholder) -> str: 510 return f"${expression.name}" if expression.name else "?"
NULL_ORDERING =
'nulls_are_last'
Indicates the default NULL
ordering method to use if not explicitly set.
Possible values: "nulls_are_small"
, "nulls_are_large"
, "nulls_are_last"
SUPPORTS_USER_DEFINED_TYPES =
False
Determines whether or not user-defined data types are supported.
SAFE_DIVISION =
True
Determines whether division by zero throws an error (False
) or returns NULL (True
).
CONCAT_COALESCE =
True
A NULL
arg in CONCAT
yields NULL
by default, but in some dialects it yields an empty string.
NORMALIZATION_STRATEGY =
<NormalizationStrategy.CASE_INSENSITIVE: 'CASE_INSENSITIVE'>
Specifies the strategy according to which identifiers should be normalized.
tokenizer_class =
<class 'DuckDB.Tokenizer'>
parser_class =
<class 'DuckDB.Parser'>
generator_class =
<class 'DuckDB.Generator'>
Inherited Members
- sqlglot.dialects.dialect.Dialect
- Dialect
- WEEK_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- TABLESAMPLE_SIZE_IS_PERCENT
- IDENTIFIERS_CAN_START_WITH_DIGIT
- DPIPE_IS_STRING_CONCAT
- STRICT_STRING_CONCAT
- SUPPORTS_SEMI_ANTI_JOIN
- NORMALIZE_FUNCTIONS
- LOG_BASE_FIRST
- TYPED_DIVISION
- DATE_FORMAT
- DATEINT_FORMAT
- TIME_FORMAT
- TIME_MAPPING
- FORMAT_MAPPING
- ESCAPE_SEQUENCES
- PSEUDOCOLUMNS
- PREFER_CTE_ALIAS_COLUMN
- get_or_raise
- format_time
- normalize_identifier
- case_sensitive
- can_identify
- quote_identifier
- parse
- parse_into
- generate
- transpile
- tokenize
- tokenizer
- parser
- generator
176 class Tokenizer(tokens.Tokenizer): 177 KEYWORDS = { 178 **tokens.Tokenizer.KEYWORDS, 179 "//": TokenType.DIV, 180 "ATTACH": TokenType.COMMAND, 181 "BINARY": TokenType.VARBINARY, 182 "BITSTRING": TokenType.BIT, 183 "BPCHAR": TokenType.TEXT, 184 "CHAR": TokenType.TEXT, 185 "CHARACTER VARYING": TokenType.TEXT, 186 "EXCLUDE": TokenType.EXCEPT, 187 "LOGICAL": TokenType.BOOLEAN, 188 "PIVOT_WIDER": TokenType.PIVOT, 189 "SIGNED": TokenType.INT, 190 "STRING": TokenType.VARCHAR, 191 "UBIGINT": TokenType.UBIGINT, 192 "UINTEGER": TokenType.UINT, 193 "USMALLINT": TokenType.USMALLINT, 194 "UTINYINT": TokenType.UTINYINT, 195 "TIMESTAMP_S": TokenType.TIMESTAMP_S, 196 "TIMESTAMP_MS": TokenType.TIMESTAMP_MS, 197 "TIMESTAMP_NS": TokenType.TIMESTAMP_NS, 198 "TIMESTAMP_US": TokenType.TIMESTAMP, 199 } 200 201 SINGLE_TOKENS = { 202 **tokens.Tokenizer.SINGLE_TOKENS, 203 "$": TokenType.PARAMETER, 204 }
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.COLON_EQ: 'COLON_EQ'>, '<=>': <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'>, '??': <TokenType.DQMARK: 'DQMARK'>, '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'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, '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'>, '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'>, 'KILL': <TokenType.KILL: 'KILL'>, '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'>, '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'>, 'START WITH': <TokenType.START_WITH: 'START_WITH'>, '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'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, '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'>, 'MEDIUMINT': <TokenType.MEDIUMINT: 'MEDIUMINT'>, 'INT1': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'INT16': <TokenType.SMALLINT: 'SMALLINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, '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.TEXT: 'TEXT'>, '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.VARCHAR: 'VARCHAR'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, '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'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, '//': <TokenType.DIV: 'DIV'>, 'ATTACH': <TokenType.COMMAND: 'COMMAND'>, 'BITSTRING': <TokenType.BIT: 'BIT'>, 'BPCHAR': <TokenType.TEXT: 'TEXT'>, 'CHARACTER VARYING': <TokenType.TEXT: 'TEXT'>, 'EXCLUDE': <TokenType.EXCEPT: 'EXCEPT'>, 'LOGICAL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'PIVOT_WIDER': <TokenType.PIVOT: 'PIVOT'>, 'SIGNED': <TokenType.INT: 'INT'>, 'UBIGINT': <TokenType.UBIGINT: 'UBIGINT'>, 'UINTEGER': <TokenType.UINT: 'UINT'>, 'USMALLINT': <TokenType.USMALLINT: 'USMALLINT'>, 'UTINYINT': <TokenType.UTINYINT: 'UTINYINT'>, 'TIMESTAMP_S': <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, 'TIMESTAMP_MS': <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, 'TIMESTAMP_NS': <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, 'TIMESTAMP_US': <TokenType.TIMESTAMP: 'TIMESTAMP'>}
SINGLE_TOKENS =
{'(': <TokenType.L_PAREN: 'L_PAREN'>, ')': <TokenType.R_PAREN: 'R_PAREN'>, '[': <TokenType.L_BRACKET: 'L_BRACKET'>, ']': <TokenType.R_BRACKET: 'R_BRACKET'>, '{': <TokenType.L_BRACE: 'L_BRACE'>, '}': <TokenType.R_BRACE: 'R_BRACE'>, '&': <TokenType.AMP: 'AMP'>, '^': <TokenType.CARET: 'CARET'>, ':': <TokenType.COLON: 'COLON'>, ',': <TokenType.COMMA: 'COMMA'>, '.': <TokenType.DOT: 'DOT'>, '-': <TokenType.DASH: 'DASH'>, '=': <TokenType.EQ: 'EQ'>, '>': <TokenType.GT: 'GT'>, '<': <TokenType.LT: 'LT'>, '%': <TokenType.MOD: 'MOD'>, '!': <TokenType.NOT: 'NOT'>, '|': <TokenType.PIPE: 'PIPE'>, '+': <TokenType.PLUS: 'PLUS'>, ';': <TokenType.SEMICOLON: 'SEMICOLON'>, '/': <TokenType.SLASH: 'SLASH'>, '\\': <TokenType.BACKSLASH: 'BACKSLASH'>, '*': <TokenType.STAR: 'STAR'>, '~': <TokenType.TILDA: 'TILDA'>, '?': <TokenType.PLACEHOLDER: 'PLACEHOLDER'>, '@': <TokenType.PARAMETER: 'PARAMETER'>, "'": <TokenType.QUOTE: 'QUOTE'>, '`': <TokenType.IDENTIFIER: 'IDENTIFIER'>, '"': <TokenType.IDENTIFIER: 'IDENTIFIER'>, '#': <TokenType.HASH: 'HASH'>, '$': <TokenType.PARAMETER: 'PARAMETER'>}
Inherited Members
- sqlglot.tokens.Tokenizer
- Tokenizer
- BIT_STRINGS
- BYTE_STRINGS
- HEX_STRINGS
- RAW_STRINGS
- HEREDOC_STRINGS
- UNICODE_STRINGS
- IDENTIFIERS
- IDENTIFIER_ESCAPES
- QUOTES
- STRING_ESCAPES
- VAR_SINGLE_TOKENS
- WHITE_SPACE
- COMMANDS
- COMMAND_PREFIX_TOKENS
- NUMERIC_LITERALS
- COMMENTS
- dialect
- reset
- tokenize
- peek
- tokenize_rs
- size
- sql
- tokens
206 class Parser(parser.Parser): 207 BITWISE = { 208 **parser.Parser.BITWISE, 209 TokenType.TILDA: exp.RegexpLike, 210 } 211 212 FUNCTIONS = { 213 **parser.Parser.FUNCTIONS, 214 "ARRAY_HAS": exp.ArrayContains.from_arg_list, 215 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, 216 "ARRAY_SORT": exp.SortArray.from_arg_list, 217 "ARRAY_REVERSE_SORT": _sort_array_reverse, 218 "DATEDIFF": _parse_date_diff, 219 "DATE_DIFF": _parse_date_diff, 220 "DATE_TRUNC": date_trunc_to_time, 221 "DATETRUNC": date_trunc_to_time, 222 "DECODE": lambda args: exp.Decode( 223 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") 224 ), 225 "ENCODE": lambda args: exp.Encode( 226 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") 227 ), 228 "EPOCH": exp.TimeToUnix.from_arg_list, 229 "EPOCH_MS": lambda args: exp.UnixToTime( 230 this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS 231 ), 232 "JSON": exp.ParseJSON.from_arg_list, 233 "LIST_HAS": exp.ArrayContains.from_arg_list, 234 "LIST_REVERSE_SORT": _sort_array_reverse, 235 "LIST_SORT": exp.SortArray.from_arg_list, 236 "LIST_VALUE": exp.Array.from_arg_list, 237 "MAKE_TIME": exp.TimeFromParts.from_arg_list, 238 "MAKE_TIMESTAMP": _parse_make_timestamp, 239 "MEDIAN": lambda args: exp.PercentileCont( 240 this=seq_get(args, 0), expression=exp.Literal.number(0.5) 241 ), 242 "QUANTILE_CONT": exp.PercentileCont.from_arg_list, 243 "QUANTILE_DISC": exp.PercentileDisc.from_arg_list, 244 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( 245 this=seq_get(args, 0), expression=seq_get(args, 1), group=seq_get(args, 2) 246 ), 247 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, 248 "REGEXP_REPLACE": lambda args: exp.RegexpReplace( 249 this=seq_get(args, 0), 250 expression=seq_get(args, 1), 251 replacement=seq_get(args, 2), 252 modifiers=seq_get(args, 3), 253 ), 254 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), 255 "STRING_SPLIT": exp.Split.from_arg_list, 256 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, 257 "STRING_TO_ARRAY": exp.Split.from_arg_list, 258 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), 259 "STRUCT_PACK": _parse_struct_pack, 260 "STR_SPLIT": exp.Split.from_arg_list, 261 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, 262 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, 263 "UNNEST": exp.Explode.from_arg_list, 264 "XOR": binary_from_function(exp.BitwiseXor), 265 } 266 267 FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() 268 FUNCTION_PARSERS.pop("DECODE", None) 269 270 TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - { 271 TokenType.SEMI, 272 TokenType.ANTI, 273 } 274 275 PLACEHOLDER_PARSERS = { 276 **parser.Parser.PLACEHOLDER_PARSERS, 277 TokenType.PARAMETER: lambda self: self.expression(exp.Placeholder, this=self._prev.text) 278 if self._match(TokenType.NUMBER) or self._match_set(self.ID_VAR_TOKENS) 279 else None, 280 } 281 282 def _parse_types( 283 self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True 284 ) -> t.Optional[exp.Expression]: 285 this = super()._parse_types( 286 check_func=check_func, schema=schema, allow_identifiers=allow_identifiers 287 ) 288 289 # DuckDB treats NUMERIC and DECIMAL without precision as DECIMAL(18, 3) 290 # See: https://duckdb.org/docs/sql/data_types/numeric 291 if ( 292 isinstance(this, exp.DataType) 293 and this.is_type("numeric", "decimal") 294 and not this.expressions 295 ): 296 return exp.DataType.build("DECIMAL(18, 3)") 297 298 return this 299 300 def _parse_struct_types(self, type_required: bool = False) -> t.Optional[exp.Expression]: 301 return self._parse_field_def() 302 303 def _pivot_column_names(self, aggregations: t.List[exp.Expression]) -> t.List[str]: 304 if len(aggregations) == 1: 305 return super()._pivot_column_names(aggregations) 306 return pivot_column_names(aggregations, dialect="duckdb")
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
BITWISE =
{<TokenType.AMP: 'AMP'>: <class 'sqlglot.expressions.BitwiseAnd'>, <TokenType.CARET: 'CARET'>: <class 'sqlglot.expressions.BitwiseXor'>, <TokenType.PIPE: 'PIPE'>: <class 'sqlglot.expressions.BitwiseOr'>, <TokenType.TILDA: 'TILDA'>: <class 'sqlglot.expressions.RegexpLike'>}
FUNCTIONS =
{'ABS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Abs'>>, 'ANONYMOUS_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnonymousAggFunc'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Array'>>, 'ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayJoin'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'ARRAY_SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySum'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'ARRAY_UNIQUE_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CHR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'COALESCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'COUNT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Count'>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COUNTIF': <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': <function _parse_date_diff>, 'DATE_DIFF': <function _parse_date_diff>, 'DATE_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, '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': <function date_trunc_to_time>, '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': <function DuckDB.Parser.<lambda>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <function DuckDB.Parser.<lambda>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FIRST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.First'>>, 'FLATTEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Flatten'>>, 'FLOOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Floor'>>, 'FROM_BASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase'>>, 'FROM_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'GET_PATH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GetPath'>>, 'GREATEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Greatest'>>, 'GROUP_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GroupConcat'>>, 'HEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hex'>>, 'HLL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hll'>>, 'IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'INITCAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Initcap'>>, 'IS_INF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'ISINF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'IS_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'J_S_O_N_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArray'>>, 'J_S_O_N_ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayAgg'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'JSON_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtract'>>, 'JSON_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtractScalar'>>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObjectAgg'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, 'LAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Last'>>, 'LAST_DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LEAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Least'>>, 'LEFT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Left'>>, 'LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function parse_logarithm>, 'LOG10': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log10'>>, 'LOG2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log2'>>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOLOR_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'LOWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'LCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'MD5': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5'>>, 'MD5_DIGEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Map'>>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Month'>>, 'MONTHS_BETWEEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MonthsBetween'>>, 'NEXT_VALUE_FOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NextValueFor'>>, 'NULLIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nullif'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PARSE_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'JSON_PARSE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POSEXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PosexplodeOuter'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'PREDICT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Predict'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'RAND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDOM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Randn'>>, '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': <function DuckDB.Parser.<lambda>>, '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': <function DuckDB.Parser.<lambda>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SORT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDDEV_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevPop'>>, 'STDDEV_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevSamp'>>, 'STR_POSITION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToDate'>>, 'STR_TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToMap'>>, 'STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToTime'>>, 'STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToUnix'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeDiff'>>, 'TIME_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIMEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Timestamp'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMPFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToArray'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDays'>>, 'TRANSFORM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Transform'>>, 'TRIM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Trim'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsDiff'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'TS_OR_DS_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTime'>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNIX_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixDate'>>, '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 binary_from_function.<locals>.<lambda>>, 'YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Year'>>, 'GLOB': <function Parser.<lambda>>, 'LIKE': <function parse_like>, 'ARRAY_HAS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_REVERSE_SORT': <function _sort_array_reverse>, 'DATETRUNC': <function date_trunc_to_time>, 'EPOCH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'EPOCH_MS': <function DuckDB.Parser.<lambda>>, 'JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'LIST_HAS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'LIST_REVERSE_SORT': <function _sort_array_reverse>, 'LIST_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'LIST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Array'>>, 'MAKE_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'MAKE_TIMESTAMP': <function _parse_make_timestamp>, 'MEDIAN': <function DuckDB.Parser.<lambda>>, 'QUANTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'QUANTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'REGEXP_MATCHES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'STRFTIME': <function format_time_lambda.<locals>._format_time>, 'STRING_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'STRING_SPLIT_REGEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'STRING_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'STRPTIME': <function format_time_lambda.<locals>._format_time>, 'STRUCT_PACK': <function _parse_struct_pack>, 'STR_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'STR_SPLIT_REGEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'TO_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTime'>>, 'UNNEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>}
FUNCTION_PARSERS =
{'ANY_VALUE': <function Parser.<lambda>>, 'CAST': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'PREDICT': <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>>}
TABLE_ALIAS_TOKENS =
{<TokenType.ENUM: 'ENUM'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.JSON: 'JSON'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TOP: 'TOP'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.ROW: 'ROW'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TRUE: 'TRUE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.TABLE: 'TABLE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.INT256: 'INT256'>, <TokenType.UINT128: 'UINT128'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.INT128: 'INT128'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.MONEY: 'MONEY'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.UINT256: 'UINT256'>, <TokenType.LOAD: 'LOAD'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.CACHE: 'CACHE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.END: 'END'>, <TokenType.INET: 'INET'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.USE: 'USE'>, <TokenType.VIEW: 'VIEW'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.UINT: 'UINT'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.FILTER: 'FILTER'>, <TokenType.BIT: 'BIT'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.DELETE: 'DELETE'>, <TokenType.BINARY: 'BINARY'>, <TokenType.CASE: 'CASE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.TIME: 'TIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.DIV: 'DIV'>, <TokenType.FALSE: 'FALSE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.UUID: 'UUID'>, <TokenType.IPV4: 'IPV4'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.SET: 'SET'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.MAP: 'MAP'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.NEXT: 'NEXT'>, <TokenType.XML: 'XML'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.DESC: 'DESC'>, <TokenType.ROWS: 'ROWS'>, <TokenType.ALL: 'ALL'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.ASC: 'ASC'>, <TokenType.YEAR: 'YEAR'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.TEXT: 'TEXT'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.VAR: 'VAR'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.KEEP: 'KEEP'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.ANY: 'ANY'>, <TokenType.INT: 'INT'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.IS: 'IS'>, <TokenType.DATE32: 'DATE32'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.KILL: 'KILL'>, <TokenType.RANGE: 'RANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.DATE: 'DATE'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.SOME: 'SOME'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.MODEL: 'MODEL'>, <TokenType.FINAL: 'FINAL'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>}
PLACEHOLDER_PARSERS =
{<TokenType.PLACEHOLDER: 'PLACEHOLDER'>: <function Parser.<lambda>>, <TokenType.PARAMETER: 'PARAMETER'>: <function DuckDB.Parser.<lambda>>, <TokenType.COLON: 'COLON'>: <function 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
- STRUCT_TYPE_TOKENS
- NESTED_TYPE_TOKENS
- ENUM_TYPE_TOKENS
- AGGREGATE_TYPE_TOKENS
- TYPE_TOKENS
- SIGNED_TO_UNSIGNED_TYPE_TOKEN
- SUBQUERY_PREDICATES
- RESERVED_TOKENS
- DB_CREATABLES
- CREATABLES
- ID_VAR_TOKENS
- INTERVAL_VARS
- COMMENT_TABLE_ALIAS_TOKENS
- UPDATE_ALIAS_TOKENS
- TRIM_TYPES
- FUNC_TOKENS
- CONJUNCTION
- EQUALITY
- COMPARISON
- TERM
- FACTOR
- EXPONENT
- TIMES
- TIMESTAMPS
- SET_OPERATIONS
- JOIN_METHODS
- JOIN_SIDES
- JOIN_KINDS
- JOIN_HINTS
- LAMBDAS
- COLUMN_OPERATORS
- EXPRESSION_PARSERS
- STATEMENT_PARSERS
- UNARY_PARSERS
- PRIMARY_PARSERS
- RANGE_PARSERS
- PROPERTY_PARSERS
- CONSTRAINT_PARSERS
- ALTER_PARSERS
- SCHEMA_UNNAMED_CONSTRAINTS
- NO_PAREN_FUNCTION_PARSERS
- INVALID_FUNC_NAME_TOKENS
- FUNCTIONS_WITH_ALIASED_ARGS
- QUERY_MODIFIER_PARSERS
- SET_PARSERS
- SHOW_PARSERS
- TYPE_LITERAL_PARSERS
- MODIFIABLES
- DDL_SELECT_TOKENS
- PRE_VOLATILE_TOKENS
- TRANSACTION_KIND
- TRANSACTION_CHARACTERISTICS
- INSERT_ALTERNATIVES
- CLONE_KEYWORDS
- HISTORICAL_DATA_KIND
- OPCLASS_FOLLOW_KEYWORDS
- OPTYPE_FOLLOW_TOKENS
- TABLE_INDEX_HINT_TOKENS
- WINDOW_ALIAS_TOKENS
- WINDOW_BEFORE_PAREN_TOKENS
- WINDOW_SIDES
- JSON_KEY_VALUE_SEPARATOR_TOKENS
- FETCH_TOKENS
- ADD_CONSTRAINT_TOKENS
- DISTINCT_TOKENS
- NULL_TOKENS
- UNNEST_OFFSET_ALIAS_TOKENS
- STRICT_CAST
- PREFIXED_PIVOT_COLUMNS
- IDENTIFY_PIVOT_STRINGS
- LOG_DEFAULTS_TO_LN
- ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
- TABLESAMPLE_CSV
- SET_REQUIRES_ASSIGNMENT_DELIMITER
- TRIM_PATTERN_FIRST
- STRING_ALIASES
- MODIFIERS_ATTACHED_TO_UNION
- UNION_MODIFIERS
- error_level
- error_message_context
- max_errors
- dialect
- reset
- parse
- parse_into
- check_errors
- raise_error
- expression
- validate_expression
- errors
- sql
308 class Generator(generator.Generator): 309 JOIN_HINTS = False 310 TABLE_HINTS = False 311 QUERY_HINTS = False 312 LIMIT_FETCH = "LIMIT" 313 STRUCT_DELIMITER = ("(", ")") 314 RENAME_TABLE_WITH_DB = False 315 NVL2_SUPPORTED = False 316 SEMI_ANTI_JOIN_WITH_SIDE = False 317 TABLESAMPLE_KEYWORDS = "USING SAMPLE" 318 TABLESAMPLE_SEED_KEYWORD = "REPEATABLE" 319 LAST_DAY_SUPPORTS_DATE_PART = False 320 JSON_KEY_VALUE_PAIR_SEP = "," 321 322 TRANSFORMS = { 323 **generator.Generator.TRANSFORMS, 324 exp.ApproxDistinct: approx_count_distinct_sql, 325 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) 326 if e.expressions and e.expressions[0].find(exp.Select) 327 else inline_array_sql(self, e), 328 exp.ArraySize: rename_func("ARRAY_LENGTH"), 329 exp.ArgMax: arg_max_or_min_no_count("ARG_MAX"), 330 exp.ArgMin: arg_max_or_min_no_count("ARG_MIN"), 331 exp.ArraySort: _array_sort_sql, 332 exp.ArraySum: rename_func("LIST_SUM"), 333 exp.BitwiseXor: rename_func("XOR"), 334 exp.CommentColumnConstraint: no_comment_column_constraint_sql, 335 exp.CurrentDate: lambda self, e: "CURRENT_DATE", 336 exp.CurrentTime: lambda self, e: "CURRENT_TIME", 337 exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP", 338 exp.DayOfMonth: rename_func("DAYOFMONTH"), 339 exp.DayOfWeek: rename_func("DAYOFWEEK"), 340 exp.DayOfYear: rename_func("DAYOFYEAR"), 341 exp.DataType: _datatype_sql, 342 exp.Date: _date_sql, 343 exp.DateAdd: _date_delta_sql, 344 exp.DateFromParts: rename_func("MAKE_DATE"), 345 exp.DateSub: _date_delta_sql, 346 exp.DateDiff: lambda self, e: self.func( 347 "DATE_DIFF", f"'{e.args.get('unit') or 'DAY'}'", e.expression, e.this 348 ), 349 exp.DateStrToDate: datestrtodate_sql, 350 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.DATEINT_FORMAT}) AS INT)", 351 exp.Decode: lambda self, e: encode_decode_sql(self, e, "DECODE", replace=False), 352 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.DATEINT_FORMAT}) AS DATE)", 353 exp.Encode: lambda self, e: encode_decode_sql(self, e, "ENCODE", replace=False), 354 exp.Explode: rename_func("UNNEST"), 355 exp.IntDiv: lambda self, e: self.binary(e, "//"), 356 exp.IsInf: rename_func("ISINF"), 357 exp.IsNan: rename_func("ISNAN"), 358 exp.JSONBExtract: arrow_json_extract_sql, 359 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, 360 exp.JSONExtract: arrow_json_extract_sql, 361 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, 362 exp.JSONFormat: _json_format_sql, 363 exp.LogicalOr: rename_func("BOOL_OR"), 364 exp.LogicalAnd: rename_func("BOOL_AND"), 365 exp.MonthsBetween: lambda self, e: self.func( 366 "DATEDIFF", 367 "'month'", 368 exp.cast(e.expression, "timestamp", copy=True), 369 exp.cast(e.this, "timestamp", copy=True), 370 ), 371 exp.ParseJSON: rename_func("JSON"), 372 exp.PercentileCont: _rename_unless_within_group("PERCENTILE_CONT", "QUANTILE_CONT"), 373 exp.PercentileDisc: _rename_unless_within_group("PERCENTILE_DISC", "QUANTILE_DISC"), 374 # DuckDB doesn't allow qualified columns inside of PIVOT expressions. 375 # See: https://github.com/duckdb/duckdb/blob/671faf92411182f81dce42ac43de8bfb05d9909e/src/planner/binder/tableref/bind_pivot.cpp#L61-L62 376 exp.Pivot: transforms.preprocess([transforms.unqualify_columns]), 377 exp.Properties: no_properties_sql, 378 exp.RegexpExtract: regexp_extract_sql, 379 exp.RegexpReplace: lambda self, e: self.func( 380 "REGEXP_REPLACE", 381 e.this, 382 e.expression, 383 e.args.get("replacement"), 384 e.args.get("modifiers"), 385 ), 386 exp.RegexpLike: rename_func("REGEXP_MATCHES"), 387 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), 388 exp.Rand: rename_func("RANDOM"), 389 exp.SafeDivide: no_safe_divide_sql, 390 exp.Split: rename_func("STR_SPLIT"), 391 exp.SortArray: _sort_array_sql, 392 exp.StrPosition: str_position_sql, 393 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", 394 exp.StrToTime: str_to_time_sql, 395 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", 396 exp.Struct: _struct_sql, 397 exp.Timestamp: no_timestamp_sql, 398 exp.TimestampDiff: lambda self, e: self.func( 399 "DATE_DIFF", exp.Literal.string(e.unit), e.expression, e.this 400 ), 401 exp.TimestampTrunc: timestamptrunc_sql, 402 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", 403 exp.TimeStrToTime: timestrtotime_sql, 404 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", 405 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", 406 exp.TimeToUnix: rename_func("EPOCH"), 407 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", 408 exp.TsOrDsAdd: _ts_or_ds_add_sql, 409 exp.TsOrDsDiff: lambda self, e: self.func( 410 "DATE_DIFF", 411 f"'{e.args.get('unit') or 'DAY'}'", 412 exp.cast(e.expression, "TIMESTAMP"), 413 exp.cast(e.this, "TIMESTAMP"), 414 ), 415 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", 416 exp.UnixToTime: _unix_to_time_sql, 417 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", 418 exp.VariancePop: rename_func("VAR_POP"), 419 exp.WeekOfYear: rename_func("WEEKOFYEAR"), 420 exp.Xor: bool_xor_sql, 421 } 422 423 TYPE_MAPPING = { 424 **generator.Generator.TYPE_MAPPING, 425 exp.DataType.Type.BINARY: "BLOB", 426 exp.DataType.Type.CHAR: "TEXT", 427 exp.DataType.Type.FLOAT: "REAL", 428 exp.DataType.Type.NCHAR: "TEXT", 429 exp.DataType.Type.NVARCHAR: "TEXT", 430 exp.DataType.Type.UINT: "UINTEGER", 431 exp.DataType.Type.VARBINARY: "BLOB", 432 exp.DataType.Type.VARCHAR: "TEXT", 433 exp.DataType.Type.TIMESTAMP_S: "TIMESTAMP_S", 434 exp.DataType.Type.TIMESTAMP_MS: "TIMESTAMP_MS", 435 exp.DataType.Type.TIMESTAMP_NS: "TIMESTAMP_NS", 436 } 437 438 STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"} 439 440 UNWRAPPED_INTERVAL_VALUES = (exp.Column, exp.Literal, exp.Paren) 441 442 PROPERTIES_LOCATION = { 443 **generator.Generator.PROPERTIES_LOCATION, 444 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 445 } 446 447 def timefromparts_sql(self, expression: exp.TimeFromParts) -> str: 448 nano = expression.args.get("nano") 449 if nano is not None: 450 expression.set( 451 "sec", expression.args["sec"] + nano.pop() / exp.Literal.number(1000000000.0) 452 ) 453 454 return rename_func("MAKE_TIME")(self, expression) 455 456 def timestampfromparts_sql(self, expression: exp.TimestampFromParts) -> str: 457 sec = expression.args["sec"] 458 459 milli = expression.args.get("milli") 460 if milli is not None: 461 sec += milli.pop() / exp.Literal.number(1000.0) 462 463 nano = expression.args.get("nano") 464 if nano is not None: 465 sec += nano.pop() / exp.Literal.number(1000000000.0) 466 467 if milli or nano: 468 expression.set("sec", sec) 469 470 return rename_func("MAKE_TIMESTAMP")(self, expression) 471 472 def tablesample_sql( 473 self, 474 expression: exp.TableSample, 475 sep: str = " AS ", 476 tablesample_keyword: t.Optional[str] = None, 477 ) -> str: 478 if not isinstance(expression.parent, exp.Select): 479 # This sample clause only applies to a single source, not the entire resulting relation 480 tablesample_keyword = "TABLESAMPLE" 481 482 return super().tablesample_sql( 483 expression, sep=sep, tablesample_keyword=tablesample_keyword 484 ) 485 486 def getpath_sql(self, expression: exp.GetPath) -> str: 487 expression = prepend_dollar_to_path(expression) 488 return f"{self.sql(expression, 'this')} -> {self.sql(expression, 'expression')}" 489 490 def interval_sql(self, expression: exp.Interval) -> str: 491 multiplier: t.Optional[int] = None 492 unit = expression.text("unit").lower() 493 494 if unit.startswith("week"): 495 multiplier = 7 496 if unit.startswith("quarter"): 497 multiplier = 90 498 499 if multiplier: 500 return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})" 501 502 return super().interval_sql(expression) 503 504 def columndef_sql(self, expression: exp.ColumnDef, sep: str = " ") -> str: 505 if isinstance(expression.parent, exp.UserDefinedFunction): 506 return self.sql(expression, "this") 507 return super().columndef_sql(expression, sep) 508 509 def placeholder_sql(self, expression: exp.Placeholder) -> str: 510 return f"${expression.name}" if expression.name else "?"
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
TRANSFORMS =
{<class 'sqlglot.expressions.DateAdd'>: <function _date_delta_sql>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CheckColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function no_comment_column_constraint_sql>, <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.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LanguageProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LocationProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LogProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.MaterializedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NonClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NotForReplicationColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetConfigProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ApproxDistinct'>: <function approx_count_distinct_sql>, <class 'sqlglot.expressions.Array'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.ArraySize'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ArgMax'>: <function arg_max_or_min_no_count.<locals>._arg_max_or_min_sql>, <class 'sqlglot.expressions.ArgMin'>: <function arg_max_or_min_no_count.<locals>._arg_max_or_min_sql>, <class 'sqlglot.expressions.ArraySort'>: <function _array_sort_sql>, <class 'sqlglot.expressions.ArraySum'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.BitwiseXor'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentDate'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.CurrentTime'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.CurrentTimestamp'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.DayOfMonth'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DayOfWeek'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DayOfYear'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DataType'>: <function _datatype_sql>, <class 'sqlglot.expressions.Date'>: <function _date_sql>, <class 'sqlglot.expressions.DateFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DateSub'>: <function _date_delta_sql>, <class 'sqlglot.expressions.DateDiff'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.DateStrToDate'>: <function datestrtodate_sql>, <class 'sqlglot.expressions.DateToDi'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.Decode'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.DiToDate'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.Encode'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.Explode'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.IntDiv'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.IsInf'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.IsNan'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.JSONBExtract'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.JSONBExtractScalar'>: <function arrow_json_extract_scalar_sql>, <class 'sqlglot.expressions.JSONExtract'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function arrow_json_extract_scalar_sql>, <class 'sqlglot.expressions.JSONFormat'>: <function _json_format_sql>, <class 'sqlglot.expressions.LogicalOr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.LogicalAnd'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.MonthsBetween'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.ParseJSON'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.PercentileCont'>: <function _rename_unless_within_group.<locals>.<lambda>>, <class 'sqlglot.expressions.PercentileDisc'>: <function _rename_unless_within_group.<locals>.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.Properties'>: <function no_properties_sql>, <class 'sqlglot.expressions.RegexpExtract'>: <function regexp_extract_sql>, <class 'sqlglot.expressions.RegexpReplace'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.RegexpLike'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.RegexpSplit'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Rand'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.SafeDivide'>: <function no_safe_divide_sql>, <class 'sqlglot.expressions.Split'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.SortArray'>: <function _sort_array_sql>, <class 'sqlglot.expressions.StrPosition'>: <function str_position_sql>, <class 'sqlglot.expressions.StrToDate'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.StrToTime'>: <function str_to_time_sql>, <class 'sqlglot.expressions.StrToUnix'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.Struct'>: <function _struct_sql>, <class 'sqlglot.expressions.Timestamp'>: <function no_timestamp_sql>, <class 'sqlglot.expressions.TimestampDiff'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.TimestampTrunc'>: <function timestamptrunc_sql>, <class 'sqlglot.expressions.TimeStrToDate'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function timestrtotime_sql>, <class 'sqlglot.expressions.TimeStrToUnix'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDiToDi'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function _ts_or_ds_add_sql>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.UnixToStr'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.UnixToTimeStr'>: <function DuckDB.Generator.<lambda>>, <class 'sqlglot.expressions.VariancePop'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.WeekOfYear'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Xor'>: <function bool_xor_sql>}
TYPE_MAPPING =
{<Type.NCHAR: 'NCHAR'>: 'TEXT', <Type.NVARCHAR: 'NVARCHAR'>: 'TEXT', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.TINYTEXT: 'TINYTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.TINYBLOB: 'TINYBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.BINARY: 'BINARY'>: 'BLOB', <Type.CHAR: 'CHAR'>: 'TEXT', <Type.FLOAT: 'FLOAT'>: 'REAL', <Type.UINT: 'UINT'>: 'UINTEGER', <Type.VARBINARY: 'VARBINARY'>: 'BLOB', <Type.VARCHAR: 'VARCHAR'>: 'TEXT', <Type.TIMESTAMP_S: 'TIMESTAMP_S'>: 'TIMESTAMP_S', <Type.TIMESTAMP_MS: 'TIMESTAMP_MS'>: 'TIMESTAMP_MS', <Type.TIMESTAMP_NS: 'TIMESTAMP_NS'>: 'TIMESTAMP_NS'}
UNWRAPPED_INTERVAL_VALUES =
(<class 'sqlglot.expressions.Column'>, <class 'sqlglot.expressions.Literal'>, <class 'sqlglot.expressions.Paren'>)
PROPERTIES_LOCATION =
{<class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <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.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <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.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.PartitionedOfProperty'>: <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.RemoteWithConnectionModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <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.SampleProperty'>: <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.SetConfigProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <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.TransformModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <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.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
447 def timefromparts_sql(self, expression: exp.TimeFromParts) -> str: 448 nano = expression.args.get("nano") 449 if nano is not None: 450 expression.set( 451 "sec", expression.args["sec"] + nano.pop() / exp.Literal.number(1000000000.0) 452 ) 453 454 return rename_func("MAKE_TIME")(self, expression)
456 def timestampfromparts_sql(self, expression: exp.TimestampFromParts) -> str: 457 sec = expression.args["sec"] 458 459 milli = expression.args.get("milli") 460 if milli is not None: 461 sec += milli.pop() / exp.Literal.number(1000.0) 462 463 nano = expression.args.get("nano") 464 if nano is not None: 465 sec += nano.pop() / exp.Literal.number(1000000000.0) 466 467 if milli or nano: 468 expression.set("sec", sec) 469 470 return rename_func("MAKE_TIMESTAMP")(self, expression)
def
tablesample_sql( self, expression: sqlglot.expressions.TableSample, sep: str = ' AS ', tablesample_keyword: Optional[str] = None) -> str:
472 def tablesample_sql( 473 self, 474 expression: exp.TableSample, 475 sep: str = " AS ", 476 tablesample_keyword: t.Optional[str] = None, 477 ) -> str: 478 if not isinstance(expression.parent, exp.Select): 479 # This sample clause only applies to a single source, not the entire resulting relation 480 tablesample_keyword = "TABLESAMPLE" 481 482 return super().tablesample_sql( 483 expression, sep=sep, tablesample_keyword=tablesample_keyword 484 )
490 def interval_sql(self, expression: exp.Interval) -> str: 491 multiplier: t.Optional[int] = None 492 unit = expression.text("unit").lower() 493 494 if unit.startswith("week"): 495 multiplier = 7 496 if unit.startswith("quarter"): 497 multiplier = 90 498 499 if multiplier: 500 return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})" 501 502 return super().interval_sql(expression)
Inherited Members
- sqlglot.generator.Generator
- Generator
- NULL_ORDERING_SUPPORTED
- LOCKING_READS_SUPPORTED
- EXPLICIT_UNION
- WRAP_DERIVED_VALUES
- CREATE_FUNCTION_RETURN_AS
- MATCHED_BY_SOURCE
- SINGLE_STRING_INTERVAL
- INTERVAL_ALLOWS_PLURAL_FORM
- LIMIT_ONLY_LITERALS
- GROUPINGS_SEP
- INDEX_ON
- QUERY_HINT_SEP
- IS_BOOL_ALLOWED
- DUPLICATE_KEY_UPDATE_WITH_SET
- LIMIT_IS_TOP
- RETURNING_END
- COLUMN_JOIN_MARKS_SUPPORTED
- EXTRACT_ALLOWS_QUOTES
- TZ_TO_WITH_TIME_ZONE
- VALUES_AS_TABLE
- ALTER_TABLE_INCLUDE_COLUMN_KEYWORD
- UNNEST_WITH_ORDINALITY
- AGGREGATE_FILTER_SUPPORTED
- COMPUTED_COLUMN_WITH_TYPE
- SUPPORTS_TABLE_COPY
- TABLESAMPLE_REQUIRES_PARENS
- TABLESAMPLE_SIZE_IS_ROWS
- TABLESAMPLE_WITH_METHOD
- COLLATE_IS_FUNC
- DATA_TYPE_SPECIFIERS_ALLOWED
- ENSURE_BOOLS
- CTE_RECURSIVE_KEYWORD_REQUIRED
- SUPPORTS_SINGLE_ARG_CONCAT
- SUPPORTS_TABLE_ALIAS_COLUMNS
- UNPIVOT_ALIASES_ARE_IDENTIFIERS
- INSERT_OVERWRITE
- SUPPORTS_SELECT_INTO
- SUPPORTS_UNLOGGED_TABLES
- TIME_PART_SINGULARS
- TOKEN_MAPPING
- PARAMETER_TOKEN
- RESERVED_KEYWORDS
- WITH_SEPARATED_COMMENTS
- EXCLUDE_COMMENTS
- EXPRESSIONS_WITHOUT_NESTED_CTES
- KEY_VALUE_DEFINITIONS
- SENTINEL_LINE_BREAK
- pretty
- identify
- normalize
- pad
- unsupported_level
- max_unsupported
- leading_comma
- max_text_width
- comments
- dialect
- normalize_functions
- unsupported_messages
- generate
- preprocess
- unsupported
- sep
- seg
- pad_comment
- maybe_comment
- wrap
- no_identify
- normalize_func
- indent
- sql
- uncache_sql
- cache_sql
- characterset_sql
- column_sql
- columnposition_sql
- columnconstraint_sql
- computedcolumnconstraint_sql
- autoincrementcolumnconstraint_sql
- compresscolumnconstraint_sql
- generatedasidentitycolumnconstraint_sql
- generatedasrowcolumnconstraint_sql
- periodforsystemtimeconstraint_sql
- notnullcolumnconstraint_sql
- transformcolumnconstraint_sql
- primarykeycolumnconstraint_sql
- uniquecolumnconstraint_sql
- createable_sql
- create_sql
- clone_sql
- describe_sql
- heredoc_sql
- prepend_ctes
- with_sql
- cte_sql
- tablealias_sql
- bitstring_sql
- hexstring_sql
- bytestring_sql
- unicodestring_sql
- rawstring_sql
- datatypeparam_sql
- datatype_sql
- directory_sql
- delete_sql
- drop_sql
- except_sql
- except_op
- fetch_sql
- filter_sql
- hint_sql
- index_sql
- identifier_sql
- inputoutputformat_sql
- national_sql
- partition_sql
- properties_sql
- root_properties
- properties
- with_properties
- locate_properties
- property_name
- property_sql
- likeproperty_sql
- fallbackproperty_sql
- journalproperty_sql
- freespaceproperty_sql
- checksumproperty_sql
- mergeblockratioproperty_sql
- datablocksizeproperty_sql
- blockcompressionproperty_sql
- isolatedloadingproperty_sql
- partitionboundspec_sql
- partitionedofproperty_sql
- lockingproperty_sql
- withdataproperty_sql
- withsystemversioningproperty_sql
- insert_sql
- intersect_sql
- intersect_op
- introducer_sql
- kill_sql
- pseudotype_sql
- objectidentifier_sql
- onconflict_sql
- returning_sql
- rowformatdelimitedproperty_sql
- withtablehint_sql
- indextablehint_sql
- historicaldata_sql
- table_sql
- pivot_sql
- version_sql
- tuple_sql
- update_sql
- values_sql
- var_sql
- into_sql
- from_sql
- group_sql
- having_sql
- connect_sql
- prior_sql
- join_sql
- lambda_sql
- lateral_op
- 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
- withfill_sql
- cluster_sql
- distribute_sql
- sort_sql
- ordered_sql
- matchrecognize_sql
- query_modifiers
- offset_limit_modifiers
- after_having_modifiers
- after_limit_modifiers
- select_sql
- schema_sql
- schema_columns_sql
- star_sql
- parameter_sql
- sessionparameter_sql
- subquery_sql
- qualify_sql
- union_sql
- union_op
- unnest_sql
- where_sql
- window_sql
- partition_by_sql
- windowspec_sql
- withingroup_sql
- between_sql
- bracket_sql
- all_sql
- any_sql
- exists_sql
- case_sql
- constraint_sql
- nextvaluefor_sql
- extract_sql
- trim_sql
- convert_concat_args
- concat_sql
- concatws_sql
- check_sql
- foreignkey_sql
- primarykey_sql
- if_sql
- matchagainst_sql
- jsonkeyvalue_sql
- formatjson_sql
- jsonobject_sql
- jsonobjectagg_sql
- jsonarray_sql
- jsonarrayagg_sql
- jsoncolumndef_sql
- jsonschema_sql
- jsontable_sql
- openjsoncolumndef_sql
- openjson_sql
- in_sql
- in_unnest_op
- return_sql
- reference_sql
- anonymous_sql
- paren_sql
- neg_sql
- not_sql
- alias_sql
- pivotalias_sql
- aliases_sql
- atindex_sql
- attimezone_sql
- fromtimezone_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
- renamecolumn_sql
- altertable_sql
- add_column_sql
- droppartition_sql
- addconstraint_sql
- distinct_sql
- ignorenulls_sql
- respectnulls_sql
- intdiv_sql
- dpipe_sql
- div_sql
- overlaps_sql
- distance_sql
- dot_sql
- eq_sql
- propertyeq_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
- log_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
- oncluster_sql
- clusteredbyproperty_sql
- anyvalue_sql
- querytransform_sql
- indexconstraintoption_sql
- indexcolumnconstraint_sql
- nvl2_sql
- comprehension_sql
- columnprefix_sql
- opclass_sql
- predict_sql
- forin_sql
- refresh_sql
- operator_sql
- toarray_sql
- tsordstotime_sql
- tsordstodate_sql
- unixdate_sql
- lastday_sql