sqlglot.tokens
1from __future__ import annotations 2 3import os 4import typing as t 5from enum import auto 6 7from sqlglot.errors import SqlglotError, TokenError 8from sqlglot.helper import AutoName 9from sqlglot.trie import TrieResult, in_trie, new_trie 10 11if t.TYPE_CHECKING: 12 from sqlglot.dialects.dialect import DialectType 13 14 15try: 16 from sqlglotrs import ( # type: ignore 17 Tokenizer as RsTokenizer, 18 TokenizerDialectSettings as RsTokenizerDialectSettings, 19 TokenizerSettings as RsTokenizerSettings, 20 TokenTypeSettings as RsTokenTypeSettings, 21 ) 22 23 USE_RS_TOKENIZER = os.environ.get("SQLGLOTRS_TOKENIZER", "1") == "1" 24except ImportError: 25 USE_RS_TOKENIZER = False 26 27 28class TokenType(AutoName): 29 L_PAREN = auto() 30 R_PAREN = auto() 31 L_BRACKET = auto() 32 R_BRACKET = auto() 33 L_BRACE = auto() 34 R_BRACE = auto() 35 COMMA = auto() 36 DOT = auto() 37 DASH = auto() 38 PLUS = auto() 39 COLON = auto() 40 DOTCOLON = auto() 41 DCOLON = auto() 42 DQMARK = auto() 43 SEMICOLON = auto() 44 STAR = auto() 45 BACKSLASH = auto() 46 SLASH = auto() 47 LT = auto() 48 LTE = auto() 49 GT = auto() 50 GTE = auto() 51 NOT = auto() 52 EQ = auto() 53 NEQ = auto() 54 NULLSAFE_EQ = auto() 55 COLON_EQ = auto() 56 AND = auto() 57 OR = auto() 58 AMP = auto() 59 DPIPE = auto() 60 PIPE_GT = auto() 61 PIPE = auto() 62 PIPE_SLASH = auto() 63 DPIPE_SLASH = auto() 64 CARET = auto() 65 CARET_AT = auto() 66 TILDA = auto() 67 ARROW = auto() 68 DARROW = auto() 69 FARROW = auto() 70 HASH = auto() 71 HASH_ARROW = auto() 72 DHASH_ARROW = auto() 73 LR_ARROW = auto() 74 DAT = auto() 75 LT_AT = auto() 76 AT_GT = auto() 77 DOLLAR = auto() 78 PARAMETER = auto() 79 SESSION_PARAMETER = auto() 80 DAMP = auto() 81 XOR = auto() 82 DSTAR = auto() 83 84 URI_START = auto() 85 86 BLOCK_START = auto() 87 BLOCK_END = auto() 88 89 SPACE = auto() 90 BREAK = auto() 91 92 STRING = auto() 93 NUMBER = auto() 94 IDENTIFIER = auto() 95 DATABASE = auto() 96 COLUMN = auto() 97 COLUMN_DEF = auto() 98 SCHEMA = auto() 99 TABLE = auto() 100 WAREHOUSE = auto() 101 STAGE = auto() 102 STREAMLIT = auto() 103 VAR = auto() 104 BIT_STRING = auto() 105 HEX_STRING = auto() 106 BYTE_STRING = auto() 107 NATIONAL_STRING = auto() 108 RAW_STRING = auto() 109 HEREDOC_STRING = auto() 110 UNICODE_STRING = auto() 111 112 # types 113 BIT = auto() 114 BOOLEAN = auto() 115 TINYINT = auto() 116 UTINYINT = auto() 117 SMALLINT = auto() 118 USMALLINT = auto() 119 MEDIUMINT = auto() 120 UMEDIUMINT = auto() 121 INT = auto() 122 UINT = auto() 123 BIGINT = auto() 124 UBIGINT = auto() 125 INT128 = auto() 126 UINT128 = auto() 127 INT256 = auto() 128 UINT256 = auto() 129 FLOAT = auto() 130 DOUBLE = auto() 131 UDOUBLE = auto() 132 DECIMAL = auto() 133 DECIMAL32 = auto() 134 DECIMAL64 = auto() 135 DECIMAL128 = auto() 136 DECIMAL256 = auto() 137 UDECIMAL = auto() 138 BIGDECIMAL = auto() 139 CHAR = auto() 140 NCHAR = auto() 141 VARCHAR = auto() 142 NVARCHAR = auto() 143 BPCHAR = auto() 144 TEXT = auto() 145 MEDIUMTEXT = auto() 146 LONGTEXT = auto() 147 BLOB = auto() 148 MEDIUMBLOB = auto() 149 LONGBLOB = auto() 150 TINYBLOB = auto() 151 TINYTEXT = auto() 152 NAME = auto() 153 BINARY = auto() 154 VARBINARY = auto() 155 JSON = auto() 156 JSONB = auto() 157 TIME = auto() 158 TIMETZ = auto() 159 TIMESTAMP = auto() 160 TIMESTAMPTZ = auto() 161 TIMESTAMPLTZ = auto() 162 TIMESTAMPNTZ = auto() 163 TIMESTAMP_S = auto() 164 TIMESTAMP_MS = auto() 165 TIMESTAMP_NS = auto() 166 DATETIME = auto() 167 DATETIME2 = auto() 168 DATETIME64 = auto() 169 SMALLDATETIME = auto() 170 DATE = auto() 171 DATE32 = auto() 172 INT4RANGE = auto() 173 INT4MULTIRANGE = auto() 174 INT8RANGE = auto() 175 INT8MULTIRANGE = auto() 176 NUMRANGE = auto() 177 NUMMULTIRANGE = auto() 178 TSRANGE = auto() 179 TSMULTIRANGE = auto() 180 TSTZRANGE = auto() 181 TSTZMULTIRANGE = auto() 182 DATERANGE = auto() 183 DATEMULTIRANGE = auto() 184 UUID = auto() 185 GEOGRAPHY = auto() 186 NULLABLE = auto() 187 GEOMETRY = auto() 188 POINT = auto() 189 RING = auto() 190 LINESTRING = auto() 191 MULTILINESTRING = auto() 192 POLYGON = auto() 193 MULTIPOLYGON = auto() 194 HLLSKETCH = auto() 195 HSTORE = auto() 196 SUPER = auto() 197 SERIAL = auto() 198 SMALLSERIAL = auto() 199 BIGSERIAL = auto() 200 XML = auto() 201 YEAR = auto() 202 USERDEFINED = auto() 203 MONEY = auto() 204 SMALLMONEY = auto() 205 ROWVERSION = auto() 206 IMAGE = auto() 207 VARIANT = auto() 208 OBJECT = auto() 209 INET = auto() 210 IPADDRESS = auto() 211 IPPREFIX = auto() 212 IPV4 = auto() 213 IPV6 = auto() 214 ENUM = auto() 215 ENUM8 = auto() 216 ENUM16 = auto() 217 FIXEDSTRING = auto() 218 LOWCARDINALITY = auto() 219 NESTED = auto() 220 AGGREGATEFUNCTION = auto() 221 SIMPLEAGGREGATEFUNCTION = auto() 222 TDIGEST = auto() 223 UNKNOWN = auto() 224 VECTOR = auto() 225 DYNAMIC = auto() 226 VOID = auto() 227 228 # keywords 229 ALIAS = auto() 230 ALTER = auto() 231 ALWAYS = auto() 232 ALL = auto() 233 ANTI = auto() 234 ANY = auto() 235 APPLY = auto() 236 ARRAY = auto() 237 ASC = auto() 238 ASOF = auto() 239 ATTACH = auto() 240 AUTO_INCREMENT = auto() 241 BEGIN = auto() 242 BETWEEN = auto() 243 BULK_COLLECT_INTO = auto() 244 CACHE = auto() 245 CASE = auto() 246 CHARACTER_SET = auto() 247 CLUSTER_BY = auto() 248 COLLATE = auto() 249 COMMAND = auto() 250 COMMENT = auto() 251 COMMIT = auto() 252 CONNECT_BY = auto() 253 CONSTRAINT = auto() 254 COPY = auto() 255 CREATE = auto() 256 CROSS = auto() 257 CUBE = auto() 258 CURRENT_DATE = auto() 259 CURRENT_DATETIME = auto() 260 CURRENT_SCHEMA = auto() 261 CURRENT_TIME = auto() 262 CURRENT_TIMESTAMP = auto() 263 CURRENT_USER = auto() 264 DECLARE = auto() 265 DEFAULT = auto() 266 DELETE = auto() 267 DESC = auto() 268 DESCRIBE = auto() 269 DETACH = auto() 270 DICTIONARY = auto() 271 DISTINCT = auto() 272 DISTRIBUTE_BY = auto() 273 DIV = auto() 274 DROP = auto() 275 ELSE = auto() 276 END = auto() 277 ESCAPE = auto() 278 EXCEPT = auto() 279 EXECUTE = auto() 280 EXISTS = auto() 281 FALSE = auto() 282 FETCH = auto() 283 FILE_FORMAT = auto() 284 FILTER = auto() 285 FINAL = auto() 286 FIRST = auto() 287 FOR = auto() 288 FORCE = auto() 289 FOREIGN_KEY = auto() 290 FORMAT = auto() 291 FROM = auto() 292 FULL = auto() 293 FUNCTION = auto() 294 GET = auto() 295 GLOB = auto() 296 GLOBAL = auto() 297 GRANT = auto() 298 GROUP_BY = auto() 299 GROUPING_SETS = auto() 300 HAVING = auto() 301 HINT = auto() 302 IGNORE = auto() 303 ILIKE = auto() 304 ILIKE_ANY = auto() 305 IN = auto() 306 INDEX = auto() 307 INNER = auto() 308 INSERT = auto() 309 INTERSECT = auto() 310 INTERVAL = auto() 311 INTO = auto() 312 INTRODUCER = auto() 313 IRLIKE = auto() 314 IS = auto() 315 ISNULL = auto() 316 JOIN = auto() 317 JOIN_MARKER = auto() 318 KEEP = auto() 319 KEY = auto() 320 KILL = auto() 321 LANGUAGE = auto() 322 LATERAL = auto() 323 LEFT = auto() 324 LIKE = auto() 325 LIKE_ANY = auto() 326 LIMIT = auto() 327 LIST = auto() 328 LOAD = auto() 329 LOCK = auto() 330 MAP = auto() 331 MATCH_CONDITION = auto() 332 MATCH_RECOGNIZE = auto() 333 MEMBER_OF = auto() 334 MERGE = auto() 335 MOD = auto() 336 MODEL = auto() 337 NATURAL = auto() 338 NEXT = auto() 339 NOTHING = auto() 340 NOTNULL = auto() 341 NULL = auto() 342 OBJECT_IDENTIFIER = auto() 343 OFFSET = auto() 344 ON = auto() 345 ONLY = auto() 346 OPERATOR = auto() 347 ORDER_BY = auto() 348 ORDER_SIBLINGS_BY = auto() 349 ORDERED = auto() 350 ORDINALITY = auto() 351 OUTER = auto() 352 OVER = auto() 353 OVERLAPS = auto() 354 OVERWRITE = auto() 355 PARTITION = auto() 356 PARTITION_BY = auto() 357 PERCENT = auto() 358 PIVOT = auto() 359 PLACEHOLDER = auto() 360 POSITIONAL = auto() 361 PRAGMA = auto() 362 PREWHERE = auto() 363 PRIMARY_KEY = auto() 364 PROCEDURE = auto() 365 PROPERTIES = auto() 366 PSEUDO_TYPE = auto() 367 PUT = auto() 368 QUALIFY = auto() 369 QUOTE = auto() 370 RANGE = auto() 371 RECURSIVE = auto() 372 REFRESH = auto() 373 RENAME = auto() 374 REPLACE = auto() 375 RETURNING = auto() 376 REFERENCES = auto() 377 RIGHT = auto() 378 RLIKE = auto() 379 ROLLBACK = auto() 380 ROLLUP = auto() 381 ROW = auto() 382 ROWS = auto() 383 SELECT = auto() 384 SEMI = auto() 385 SEPARATOR = auto() 386 SEQUENCE = auto() 387 SERDE_PROPERTIES = auto() 388 SET = auto() 389 SETTINGS = auto() 390 SHOW = auto() 391 SIMILAR_TO = auto() 392 SOME = auto() 393 SORT_BY = auto() 394 START_WITH = auto() 395 STORAGE_INTEGRATION = auto() 396 STRAIGHT_JOIN = auto() 397 STRUCT = auto() 398 SUMMARIZE = auto() 399 TABLE_SAMPLE = auto() 400 TAG = auto() 401 TEMPORARY = auto() 402 TOP = auto() 403 THEN = auto() 404 TRUE = auto() 405 TRUNCATE = auto() 406 UNCACHE = auto() 407 UNION = auto() 408 UNNEST = auto() 409 UNPIVOT = auto() 410 UPDATE = auto() 411 USE = auto() 412 USING = auto() 413 VALUES = auto() 414 VIEW = auto() 415 VOLATILE = auto() 416 WHEN = auto() 417 WHERE = auto() 418 WINDOW = auto() 419 WITH = auto() 420 UNIQUE = auto() 421 VERSION_SNAPSHOT = auto() 422 TIMESTAMP_SNAPSHOT = auto() 423 OPTION = auto() 424 SINK = auto() 425 SOURCE = auto() 426 ANALYZE = auto() 427 NAMESPACE = auto() 428 EXPORT = auto() 429 430 431_ALL_TOKEN_TYPES = list(TokenType) 432_TOKEN_TYPE_TO_INDEX = {token_type: i for i, token_type in enumerate(_ALL_TOKEN_TYPES)} 433 434 435class Token: 436 __slots__ = ("token_type", "text", "line", "col", "start", "end", "comments") 437 438 @classmethod 439 def number(cls, number: int) -> Token: 440 """Returns a NUMBER token with `number` as its text.""" 441 return cls(TokenType.NUMBER, str(number)) 442 443 @classmethod 444 def string(cls, string: str) -> Token: 445 """Returns a STRING token with `string` as its text.""" 446 return cls(TokenType.STRING, string) 447 448 @classmethod 449 def identifier(cls, identifier: str) -> Token: 450 """Returns an IDENTIFIER token with `identifier` as its text.""" 451 return cls(TokenType.IDENTIFIER, identifier) 452 453 @classmethod 454 def var(cls, var: str) -> Token: 455 """Returns an VAR token with `var` as its text.""" 456 return cls(TokenType.VAR, var) 457 458 def __init__( 459 self, 460 token_type: TokenType, 461 text: str, 462 line: int = 1, 463 col: int = 1, 464 start: int = 0, 465 end: int = 0, 466 comments: t.Optional[t.List[str]] = None, 467 ) -> None: 468 """Token initializer. 469 470 Args: 471 token_type: The TokenType Enum. 472 text: The text of the token. 473 line: The line that the token ends on. 474 col: The column that the token ends on. 475 start: The start index of the token. 476 end: The ending index of the token. 477 comments: The comments to attach to the token. 478 """ 479 self.token_type = token_type 480 self.text = text 481 self.line = line 482 self.col = col 483 self.start = start 484 self.end = end 485 self.comments = [] if comments is None else comments 486 487 def __repr__(self) -> str: 488 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) 489 return f"<Token {attributes}>" 490 491 492class _Tokenizer(type): 493 def __new__(cls, clsname, bases, attrs): 494 klass = super().__new__(cls, clsname, bases, attrs) 495 496 def _convert_quotes(arr: t.List[str | t.Tuple[str, str]]) -> t.Dict[str, str]: 497 return dict( 498 (item, item) if isinstance(item, str) else (item[0], item[1]) for item in arr 499 ) 500 501 def _quotes_to_format( 502 token_type: TokenType, arr: t.List[str | t.Tuple[str, str]] 503 ) -> t.Dict[str, t.Tuple[str, TokenType]]: 504 return {k: (v, token_type) for k, v in _convert_quotes(arr).items()} 505 506 klass._QUOTES = _convert_quotes(klass.QUOTES) 507 klass._IDENTIFIERS = _convert_quotes(klass.IDENTIFIERS) 508 509 klass._FORMAT_STRINGS = { 510 **{ 511 p + s: (e, TokenType.NATIONAL_STRING) 512 for s, e in klass._QUOTES.items() 513 for p in ("n", "N") 514 }, 515 **_quotes_to_format(TokenType.BIT_STRING, klass.BIT_STRINGS), 516 **_quotes_to_format(TokenType.BYTE_STRING, klass.BYTE_STRINGS), 517 **_quotes_to_format(TokenType.HEX_STRING, klass.HEX_STRINGS), 518 **_quotes_to_format(TokenType.RAW_STRING, klass.RAW_STRINGS), 519 **_quotes_to_format(TokenType.HEREDOC_STRING, klass.HEREDOC_STRINGS), 520 **_quotes_to_format(TokenType.UNICODE_STRING, klass.UNICODE_STRINGS), 521 } 522 523 klass._STRING_ESCAPES = set(klass.STRING_ESCAPES) 524 klass._IDENTIFIER_ESCAPES = set(klass.IDENTIFIER_ESCAPES) 525 klass._COMMENTS = { 526 **dict( 527 (comment, None) if isinstance(comment, str) else (comment[0], comment[1]) 528 for comment in klass.COMMENTS 529 ), 530 "{#": "#}", # Ensure Jinja comments are tokenized correctly in all dialects 531 } 532 if klass.HINT_START in klass.KEYWORDS: 533 klass._COMMENTS[klass.HINT_START] = "*/" 534 535 klass._KEYWORD_TRIE = new_trie( 536 key.upper() 537 for key in ( 538 *klass.KEYWORDS, 539 *klass._COMMENTS, 540 *klass._QUOTES, 541 *klass._FORMAT_STRINGS, 542 ) 543 if " " in key or any(single in key for single in klass.SINGLE_TOKENS) 544 ) 545 546 if USE_RS_TOKENIZER: 547 settings = RsTokenizerSettings( 548 white_space={k: _TOKEN_TYPE_TO_INDEX[v] for k, v in klass.WHITE_SPACE.items()}, 549 single_tokens={k: _TOKEN_TYPE_TO_INDEX[v] for k, v in klass.SINGLE_TOKENS.items()}, 550 keywords={k: _TOKEN_TYPE_TO_INDEX[v] for k, v in klass.KEYWORDS.items()}, 551 numeric_literals=klass.NUMERIC_LITERALS, 552 identifiers=klass._IDENTIFIERS, 553 identifier_escapes=klass._IDENTIFIER_ESCAPES, 554 string_escapes=klass._STRING_ESCAPES, 555 quotes=klass._QUOTES, 556 format_strings={ 557 k: (v1, _TOKEN_TYPE_TO_INDEX[v2]) 558 for k, (v1, v2) in klass._FORMAT_STRINGS.items() 559 }, 560 has_bit_strings=bool(klass.BIT_STRINGS), 561 has_hex_strings=bool(klass.HEX_STRINGS), 562 comments=klass._COMMENTS, 563 var_single_tokens=klass.VAR_SINGLE_TOKENS, 564 commands={_TOKEN_TYPE_TO_INDEX[v] for v in klass.COMMANDS}, 565 command_prefix_tokens={ 566 _TOKEN_TYPE_TO_INDEX[v] for v in klass.COMMAND_PREFIX_TOKENS 567 }, 568 heredoc_tag_is_identifier=klass.HEREDOC_TAG_IS_IDENTIFIER, 569 string_escapes_allowed_in_raw_strings=klass.STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS, 570 nested_comments=klass.NESTED_COMMENTS, 571 hint_start=klass.HINT_START, 572 tokens_preceding_hint={ 573 _TOKEN_TYPE_TO_INDEX[v] for v in klass.TOKENS_PRECEDING_HINT 574 }, 575 ) 576 token_types = RsTokenTypeSettings( 577 bit_string=_TOKEN_TYPE_TO_INDEX[TokenType.BIT_STRING], 578 break_=_TOKEN_TYPE_TO_INDEX[TokenType.BREAK], 579 dcolon=_TOKEN_TYPE_TO_INDEX[TokenType.DCOLON], 580 heredoc_string=_TOKEN_TYPE_TO_INDEX[TokenType.HEREDOC_STRING], 581 raw_string=_TOKEN_TYPE_TO_INDEX[TokenType.RAW_STRING], 582 hex_string=_TOKEN_TYPE_TO_INDEX[TokenType.HEX_STRING], 583 identifier=_TOKEN_TYPE_TO_INDEX[TokenType.IDENTIFIER], 584 number=_TOKEN_TYPE_TO_INDEX[TokenType.NUMBER], 585 parameter=_TOKEN_TYPE_TO_INDEX[TokenType.PARAMETER], 586 semicolon=_TOKEN_TYPE_TO_INDEX[TokenType.SEMICOLON], 587 string=_TOKEN_TYPE_TO_INDEX[TokenType.STRING], 588 var=_TOKEN_TYPE_TO_INDEX[TokenType.VAR], 589 heredoc_string_alternative=_TOKEN_TYPE_TO_INDEX[klass.HEREDOC_STRING_ALTERNATIVE], 590 hint=_TOKEN_TYPE_TO_INDEX[TokenType.HINT], 591 ) 592 klass._RS_TOKENIZER = RsTokenizer(settings, token_types) 593 else: 594 klass._RS_TOKENIZER = None 595 596 return klass 597 598 599class Tokenizer(metaclass=_Tokenizer): 600 SINGLE_TOKENS = { 601 "(": TokenType.L_PAREN, 602 ")": TokenType.R_PAREN, 603 "[": TokenType.L_BRACKET, 604 "]": TokenType.R_BRACKET, 605 "{": TokenType.L_BRACE, 606 "}": TokenType.R_BRACE, 607 "&": TokenType.AMP, 608 "^": TokenType.CARET, 609 ":": TokenType.COLON, 610 ",": TokenType.COMMA, 611 ".": TokenType.DOT, 612 "-": TokenType.DASH, 613 "=": TokenType.EQ, 614 ">": TokenType.GT, 615 "<": TokenType.LT, 616 "%": TokenType.MOD, 617 "!": TokenType.NOT, 618 "|": TokenType.PIPE, 619 "+": TokenType.PLUS, 620 ";": TokenType.SEMICOLON, 621 "/": TokenType.SLASH, 622 "\\": TokenType.BACKSLASH, 623 "*": TokenType.STAR, 624 "~": TokenType.TILDA, 625 "?": TokenType.PLACEHOLDER, 626 "@": TokenType.PARAMETER, 627 "#": TokenType.HASH, 628 # Used for breaking a var like x'y' but nothing else the token type doesn't matter 629 "'": TokenType.UNKNOWN, 630 "`": TokenType.UNKNOWN, 631 '"': TokenType.UNKNOWN, 632 } 633 634 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] 635 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 636 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] 637 RAW_STRINGS: t.List[str | t.Tuple[str, str]] = [] 638 HEREDOC_STRINGS: t.List[str | t.Tuple[str, str]] = [] 639 UNICODE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 640 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] 641 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] 642 STRING_ESCAPES = ["'"] 643 VAR_SINGLE_TOKENS: t.Set[str] = set() 644 645 # The strings in this list can always be used as escapes, regardless of the surrounding 646 # identifier delimiters. By default, the closing delimiter is assumed to also act as an 647 # identifier escape, e.g. if we use double-quotes, then they also act as escapes: "x""" 648 IDENTIFIER_ESCAPES: t.List[str] = [] 649 650 # Whether the heredoc tags follow the same lexical rules as unquoted identifiers 651 HEREDOC_TAG_IS_IDENTIFIER = False 652 653 # Token that we'll generate as a fallback if the heredoc prefix doesn't correspond to a heredoc 654 HEREDOC_STRING_ALTERNATIVE = TokenType.VAR 655 656 # Whether string escape characters function as such when placed within raw strings 657 STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS = True 658 659 NESTED_COMMENTS = True 660 661 HINT_START = "/*+" 662 663 TOKENS_PRECEDING_HINT = {TokenType.SELECT, TokenType.INSERT, TokenType.UPDATE, TokenType.DELETE} 664 665 # Autofilled 666 _COMMENTS: t.Dict[str, str] = {} 667 _FORMAT_STRINGS: t.Dict[str, t.Tuple[str, TokenType]] = {} 668 _IDENTIFIERS: t.Dict[str, str] = {} 669 _IDENTIFIER_ESCAPES: t.Set[str] = set() 670 _QUOTES: t.Dict[str, str] = {} 671 _STRING_ESCAPES: t.Set[str] = set() 672 _KEYWORD_TRIE: t.Dict = {} 673 _RS_TOKENIZER: t.Optional[t.Any] = None 674 675 KEYWORDS: t.Dict[str, TokenType] = { 676 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, 677 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, 678 **{f"{{{{{postfix}": TokenType.BLOCK_START for postfix in ("+", "-")}, 679 **{f"{prefix}}}}}": TokenType.BLOCK_END for prefix in ("+", "-")}, 680 HINT_START: TokenType.HINT, 681 "==": TokenType.EQ, 682 "::": TokenType.DCOLON, 683 "||": TokenType.DPIPE, 684 "|>": TokenType.PIPE_GT, 685 ">=": TokenType.GTE, 686 "<=": TokenType.LTE, 687 "<>": TokenType.NEQ, 688 "!=": TokenType.NEQ, 689 ":=": TokenType.COLON_EQ, 690 "<=>": TokenType.NULLSAFE_EQ, 691 "->": TokenType.ARROW, 692 "->>": TokenType.DARROW, 693 "=>": TokenType.FARROW, 694 "#>": TokenType.HASH_ARROW, 695 "#>>": TokenType.DHASH_ARROW, 696 "<->": TokenType.LR_ARROW, 697 "&&": TokenType.DAMP, 698 "??": TokenType.DQMARK, 699 "~~~": TokenType.GLOB, 700 "~~": TokenType.LIKE, 701 "~~*": TokenType.ILIKE, 702 "~*": TokenType.IRLIKE, 703 "ALL": TokenType.ALL, 704 "ALWAYS": TokenType.ALWAYS, 705 "AND": TokenType.AND, 706 "ANTI": TokenType.ANTI, 707 "ANY": TokenType.ANY, 708 "ASC": TokenType.ASC, 709 "AS": TokenType.ALIAS, 710 "ASOF": TokenType.ASOF, 711 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, 712 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, 713 "BEGIN": TokenType.BEGIN, 714 "BETWEEN": TokenType.BETWEEN, 715 "CACHE": TokenType.CACHE, 716 "UNCACHE": TokenType.UNCACHE, 717 "CASE": TokenType.CASE, 718 "CHARACTER SET": TokenType.CHARACTER_SET, 719 "CLUSTER BY": TokenType.CLUSTER_BY, 720 "COLLATE": TokenType.COLLATE, 721 "COLUMN": TokenType.COLUMN, 722 "COMMIT": TokenType.COMMIT, 723 "CONNECT BY": TokenType.CONNECT_BY, 724 "CONSTRAINT": TokenType.CONSTRAINT, 725 "COPY": TokenType.COPY, 726 "CREATE": TokenType.CREATE, 727 "CROSS": TokenType.CROSS, 728 "CUBE": TokenType.CUBE, 729 "CURRENT_DATE": TokenType.CURRENT_DATE, 730 "CURRENT_SCHEMA": TokenType.CURRENT_SCHEMA, 731 "CURRENT_TIME": TokenType.CURRENT_TIME, 732 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, 733 "CURRENT_USER": TokenType.CURRENT_USER, 734 "DATABASE": TokenType.DATABASE, 735 "DEFAULT": TokenType.DEFAULT, 736 "DELETE": TokenType.DELETE, 737 "DESC": TokenType.DESC, 738 "DESCRIBE": TokenType.DESCRIBE, 739 "DISTINCT": TokenType.DISTINCT, 740 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, 741 "DIV": TokenType.DIV, 742 "DROP": TokenType.DROP, 743 "ELSE": TokenType.ELSE, 744 "END": TokenType.END, 745 "ENUM": TokenType.ENUM, 746 "ESCAPE": TokenType.ESCAPE, 747 "EXCEPT": TokenType.EXCEPT, 748 "EXECUTE": TokenType.EXECUTE, 749 "EXISTS": TokenType.EXISTS, 750 "FALSE": TokenType.FALSE, 751 "FETCH": TokenType.FETCH, 752 "FILTER": TokenType.FILTER, 753 "FIRST": TokenType.FIRST, 754 "FULL": TokenType.FULL, 755 "FUNCTION": TokenType.FUNCTION, 756 "FOR": TokenType.FOR, 757 "FOREIGN KEY": TokenType.FOREIGN_KEY, 758 "FORMAT": TokenType.FORMAT, 759 "FROM": TokenType.FROM, 760 "GEOGRAPHY": TokenType.GEOGRAPHY, 761 "GEOMETRY": TokenType.GEOMETRY, 762 "GLOB": TokenType.GLOB, 763 "GROUP BY": TokenType.GROUP_BY, 764 "GROUPING SETS": TokenType.GROUPING_SETS, 765 "HAVING": TokenType.HAVING, 766 "ILIKE": TokenType.ILIKE, 767 "IN": TokenType.IN, 768 "INDEX": TokenType.INDEX, 769 "INET": TokenType.INET, 770 "INNER": TokenType.INNER, 771 "INSERT": TokenType.INSERT, 772 "INTERVAL": TokenType.INTERVAL, 773 "INTERSECT": TokenType.INTERSECT, 774 "INTO": TokenType.INTO, 775 "IS": TokenType.IS, 776 "ISNULL": TokenType.ISNULL, 777 "JOIN": TokenType.JOIN, 778 "KEEP": TokenType.KEEP, 779 "KILL": TokenType.KILL, 780 "LATERAL": TokenType.LATERAL, 781 "LEFT": TokenType.LEFT, 782 "LIKE": TokenType.LIKE, 783 "LIMIT": TokenType.LIMIT, 784 "LOAD": TokenType.LOAD, 785 "LOCK": TokenType.LOCK, 786 "MERGE": TokenType.MERGE, 787 "NAMESPACE": TokenType.NAMESPACE, 788 "NATURAL": TokenType.NATURAL, 789 "NEXT": TokenType.NEXT, 790 "NOT": TokenType.NOT, 791 "NOTNULL": TokenType.NOTNULL, 792 "NULL": TokenType.NULL, 793 "OBJECT": TokenType.OBJECT, 794 "OFFSET": TokenType.OFFSET, 795 "ON": TokenType.ON, 796 "OR": TokenType.OR, 797 "XOR": TokenType.XOR, 798 "ORDER BY": TokenType.ORDER_BY, 799 "ORDINALITY": TokenType.ORDINALITY, 800 "OUTER": TokenType.OUTER, 801 "OVER": TokenType.OVER, 802 "OVERLAPS": TokenType.OVERLAPS, 803 "OVERWRITE": TokenType.OVERWRITE, 804 "PARTITION": TokenType.PARTITION, 805 "PARTITION BY": TokenType.PARTITION_BY, 806 "PARTITIONED BY": TokenType.PARTITION_BY, 807 "PARTITIONED_BY": TokenType.PARTITION_BY, 808 "PERCENT": TokenType.PERCENT, 809 "PIVOT": TokenType.PIVOT, 810 "PRAGMA": TokenType.PRAGMA, 811 "PRIMARY KEY": TokenType.PRIMARY_KEY, 812 "PROCEDURE": TokenType.PROCEDURE, 813 "QUALIFY": TokenType.QUALIFY, 814 "RANGE": TokenType.RANGE, 815 "RECURSIVE": TokenType.RECURSIVE, 816 "REGEXP": TokenType.RLIKE, 817 "RENAME": TokenType.RENAME, 818 "REPLACE": TokenType.REPLACE, 819 "RETURNING": TokenType.RETURNING, 820 "REFERENCES": TokenType.REFERENCES, 821 "RIGHT": TokenType.RIGHT, 822 "RLIKE": TokenType.RLIKE, 823 "ROLLBACK": TokenType.ROLLBACK, 824 "ROLLUP": TokenType.ROLLUP, 825 "ROW": TokenType.ROW, 826 "ROWS": TokenType.ROWS, 827 "SCHEMA": TokenType.SCHEMA, 828 "SELECT": TokenType.SELECT, 829 "SEMI": TokenType.SEMI, 830 "SET": TokenType.SET, 831 "SETTINGS": TokenType.SETTINGS, 832 "SHOW": TokenType.SHOW, 833 "SIMILAR TO": TokenType.SIMILAR_TO, 834 "SOME": TokenType.SOME, 835 "SORT BY": TokenType.SORT_BY, 836 "START WITH": TokenType.START_WITH, 837 "STRAIGHT_JOIN": TokenType.STRAIGHT_JOIN, 838 "TABLE": TokenType.TABLE, 839 "TABLESAMPLE": TokenType.TABLE_SAMPLE, 840 "TEMP": TokenType.TEMPORARY, 841 "TEMPORARY": TokenType.TEMPORARY, 842 "THEN": TokenType.THEN, 843 "TRUE": TokenType.TRUE, 844 "TRUNCATE": TokenType.TRUNCATE, 845 "UNION": TokenType.UNION, 846 "UNKNOWN": TokenType.UNKNOWN, 847 "UNNEST": TokenType.UNNEST, 848 "UNPIVOT": TokenType.UNPIVOT, 849 "UPDATE": TokenType.UPDATE, 850 "USE": TokenType.USE, 851 "USING": TokenType.USING, 852 "UUID": TokenType.UUID, 853 "VALUES": TokenType.VALUES, 854 "VIEW": TokenType.VIEW, 855 "VOLATILE": TokenType.VOLATILE, 856 "WHEN": TokenType.WHEN, 857 "WHERE": TokenType.WHERE, 858 "WINDOW": TokenType.WINDOW, 859 "WITH": TokenType.WITH, 860 "APPLY": TokenType.APPLY, 861 "ARRAY": TokenType.ARRAY, 862 "BIT": TokenType.BIT, 863 "BOOL": TokenType.BOOLEAN, 864 "BOOLEAN": TokenType.BOOLEAN, 865 "BYTE": TokenType.TINYINT, 866 "MEDIUMINT": TokenType.MEDIUMINT, 867 "INT1": TokenType.TINYINT, 868 "TINYINT": TokenType.TINYINT, 869 "INT16": TokenType.SMALLINT, 870 "SHORT": TokenType.SMALLINT, 871 "SMALLINT": TokenType.SMALLINT, 872 "HUGEINT": TokenType.INT128, 873 "UHUGEINT": TokenType.UINT128, 874 "INT2": TokenType.SMALLINT, 875 "INTEGER": TokenType.INT, 876 "INT": TokenType.INT, 877 "INT4": TokenType.INT, 878 "INT32": TokenType.INT, 879 "INT64": TokenType.BIGINT, 880 "INT128": TokenType.INT128, 881 "INT256": TokenType.INT256, 882 "LONG": TokenType.BIGINT, 883 "BIGINT": TokenType.BIGINT, 884 "INT8": TokenType.TINYINT, 885 "UINT": TokenType.UINT, 886 "UINT128": TokenType.UINT128, 887 "UINT256": TokenType.UINT256, 888 "DEC": TokenType.DECIMAL, 889 "DECIMAL": TokenType.DECIMAL, 890 "DECIMAL32": TokenType.DECIMAL32, 891 "DECIMAL64": TokenType.DECIMAL64, 892 "DECIMAL128": TokenType.DECIMAL128, 893 "DECIMAL256": TokenType.DECIMAL256, 894 "BIGDECIMAL": TokenType.BIGDECIMAL, 895 "BIGNUMERIC": TokenType.BIGDECIMAL, 896 "LIST": TokenType.LIST, 897 "MAP": TokenType.MAP, 898 "NULLABLE": TokenType.NULLABLE, 899 "NUMBER": TokenType.DECIMAL, 900 "NUMERIC": TokenType.DECIMAL, 901 "FIXED": TokenType.DECIMAL, 902 "REAL": TokenType.FLOAT, 903 "FLOAT": TokenType.FLOAT, 904 "FLOAT4": TokenType.FLOAT, 905 "FLOAT8": TokenType.DOUBLE, 906 "DOUBLE": TokenType.DOUBLE, 907 "DOUBLE PRECISION": TokenType.DOUBLE, 908 "JSON": TokenType.JSON, 909 "JSONB": TokenType.JSONB, 910 "CHAR": TokenType.CHAR, 911 "CHARACTER": TokenType.CHAR, 912 "CHAR VARYING": TokenType.VARCHAR, 913 "CHARACTER VARYING": TokenType.VARCHAR, 914 "NCHAR": TokenType.NCHAR, 915 "VARCHAR": TokenType.VARCHAR, 916 "VARCHAR2": TokenType.VARCHAR, 917 "NVARCHAR": TokenType.NVARCHAR, 918 "NVARCHAR2": TokenType.NVARCHAR, 919 "BPCHAR": TokenType.BPCHAR, 920 "STR": TokenType.TEXT, 921 "STRING": TokenType.TEXT, 922 "TEXT": TokenType.TEXT, 923 "LONGTEXT": TokenType.LONGTEXT, 924 "MEDIUMTEXT": TokenType.MEDIUMTEXT, 925 "TINYTEXT": TokenType.TINYTEXT, 926 "CLOB": TokenType.TEXT, 927 "LONGVARCHAR": TokenType.TEXT, 928 "BINARY": TokenType.BINARY, 929 "BLOB": TokenType.VARBINARY, 930 "LONGBLOB": TokenType.LONGBLOB, 931 "MEDIUMBLOB": TokenType.MEDIUMBLOB, 932 "TINYBLOB": TokenType.TINYBLOB, 933 "BYTEA": TokenType.VARBINARY, 934 "VARBINARY": TokenType.VARBINARY, 935 "TIME": TokenType.TIME, 936 "TIMETZ": TokenType.TIMETZ, 937 "TIMESTAMP": TokenType.TIMESTAMP, 938 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, 939 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, 940 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, 941 "TIMESTAMPNTZ": TokenType.TIMESTAMPNTZ, 942 "TIMESTAMP_NTZ": TokenType.TIMESTAMPNTZ, 943 "DATE": TokenType.DATE, 944 "DATETIME": TokenType.DATETIME, 945 "INT4RANGE": TokenType.INT4RANGE, 946 "INT4MULTIRANGE": TokenType.INT4MULTIRANGE, 947 "INT8RANGE": TokenType.INT8RANGE, 948 "INT8MULTIRANGE": TokenType.INT8MULTIRANGE, 949 "NUMRANGE": TokenType.NUMRANGE, 950 "NUMMULTIRANGE": TokenType.NUMMULTIRANGE, 951 "TSRANGE": TokenType.TSRANGE, 952 "TSMULTIRANGE": TokenType.TSMULTIRANGE, 953 "TSTZRANGE": TokenType.TSTZRANGE, 954 "TSTZMULTIRANGE": TokenType.TSTZMULTIRANGE, 955 "DATERANGE": TokenType.DATERANGE, 956 "DATEMULTIRANGE": TokenType.DATEMULTIRANGE, 957 "UNIQUE": TokenType.UNIQUE, 958 "VECTOR": TokenType.VECTOR, 959 "STRUCT": TokenType.STRUCT, 960 "SEQUENCE": TokenType.SEQUENCE, 961 "VARIANT": TokenType.VARIANT, 962 "ALTER": TokenType.ALTER, 963 "ANALYZE": TokenType.ANALYZE, 964 "CALL": TokenType.COMMAND, 965 "COMMENT": TokenType.COMMENT, 966 "EXPLAIN": TokenType.COMMAND, 967 "GRANT": TokenType.GRANT, 968 "OPTIMIZE": TokenType.COMMAND, 969 "PREPARE": TokenType.COMMAND, 970 "VACUUM": TokenType.COMMAND, 971 "USER-DEFINED": TokenType.USERDEFINED, 972 "FOR VERSION": TokenType.VERSION_SNAPSHOT, 973 "FOR TIMESTAMP": TokenType.TIMESTAMP_SNAPSHOT, 974 } 975 976 WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = { 977 " ": TokenType.SPACE, 978 "\t": TokenType.SPACE, 979 "\n": TokenType.BREAK, 980 "\r": TokenType.BREAK, 981 } 982 983 COMMANDS = { 984 TokenType.COMMAND, 985 TokenType.EXECUTE, 986 TokenType.FETCH, 987 TokenType.SHOW, 988 TokenType.RENAME, 989 } 990 991 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} 992 993 # Handle numeric literals like in hive (3L = BIGINT) 994 NUMERIC_LITERALS: t.Dict[str, str] = {} 995 996 COMMENTS = ["--", ("/*", "*/")] 997 998 __slots__ = ( 999 "sql", 1000 "size", 1001 "tokens", 1002 "dialect", 1003 "use_rs_tokenizer", 1004 "_start", 1005 "_current", 1006 "_line", 1007 "_col", 1008 "_comments", 1009 "_char", 1010 "_end", 1011 "_peek", 1012 "_prev_token_line", 1013 "_rs_dialect_settings", 1014 ) 1015 1016 def __init__( 1017 self, dialect: DialectType = None, use_rs_tokenizer: t.Optional[bool] = None 1018 ) -> None: 1019 from sqlglot.dialects import Dialect 1020 1021 self.dialect = Dialect.get_or_raise(dialect) 1022 1023 # initialize `use_rs_tokenizer`, and allow it to be overwritten per Tokenizer instance 1024 self.use_rs_tokenizer = ( 1025 use_rs_tokenizer if use_rs_tokenizer is not None else USE_RS_TOKENIZER 1026 ) 1027 1028 if self.use_rs_tokenizer: 1029 self._rs_dialect_settings = RsTokenizerDialectSettings( 1030 unescaped_sequences=self.dialect.UNESCAPED_SEQUENCES, 1031 identifiers_can_start_with_digit=self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT, 1032 numbers_can_be_underscore_separated=self.dialect.NUMBERS_CAN_BE_UNDERSCORE_SEPARATED, 1033 ) 1034 1035 self.reset() 1036 1037 def reset(self) -> None: 1038 self.sql = "" 1039 self.size = 0 1040 self.tokens: t.List[Token] = [] 1041 self._start = 0 1042 self._current = 0 1043 self._line = 1 1044 self._col = 0 1045 self._comments: t.List[str] = [] 1046 1047 self._char = "" 1048 self._end = False 1049 self._peek = "" 1050 self._prev_token_line = -1 1051 1052 def tokenize(self, sql: str) -> t.List[Token]: 1053 """Returns a list of tokens corresponding to the SQL string `sql`.""" 1054 if self.use_rs_tokenizer: 1055 return self.tokenize_rs(sql) 1056 1057 self.reset() 1058 self.sql = sql 1059 self.size = len(sql) 1060 1061 try: 1062 self._scan() 1063 except Exception as e: 1064 start = max(self._current - 50, 0) 1065 end = min(self._current + 50, self.size - 1) 1066 context = self.sql[start:end] 1067 raise TokenError(f"Error tokenizing '{context}'") from e 1068 1069 return self.tokens 1070 1071 def _scan(self, until: t.Optional[t.Callable] = None) -> None: 1072 while self.size and not self._end: 1073 current = self._current 1074 1075 # Skip spaces here rather than iteratively calling advance() for performance reasons 1076 while current < self.size: 1077 char = self.sql[current] 1078 1079 if char.isspace() and (char == " " or char == "\t"): 1080 current += 1 1081 else: 1082 break 1083 1084 offset = current - self._current if current > self._current else 1 1085 1086 self._start = current 1087 self._advance(offset) 1088 1089 if not self._char.isspace(): 1090 if self._char.isdigit(): 1091 self._scan_number() 1092 elif self._char in self._IDENTIFIERS: 1093 self._scan_identifier(self._IDENTIFIERS[self._char]) 1094 else: 1095 self._scan_keywords() 1096 1097 if until and until(): 1098 break 1099 1100 if self.tokens and self._comments: 1101 self.tokens[-1].comments.extend(self._comments) 1102 1103 def _chars(self, size: int) -> str: 1104 if size == 1: 1105 return self._char 1106 1107 start = self._current - 1 1108 end = start + size 1109 1110 return self.sql[start:end] if end <= self.size else "" 1111 1112 def _advance(self, i: int = 1, alnum: bool = False) -> None: 1113 if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: 1114 # Ensures we don't count an extra line if we get a \r\n line break sequence 1115 if not (self._char == "\r" and self._peek == "\n"): 1116 self._col = i 1117 self._line += 1 1118 else: 1119 self._col += i 1120 1121 self._current += i 1122 self._end = self._current >= self.size 1123 self._char = self.sql[self._current - 1] 1124 self._peek = "" if self._end else self.sql[self._current] 1125 1126 if alnum and self._char.isalnum(): 1127 # Here we use local variables instead of attributes for better performance 1128 _col = self._col 1129 _current = self._current 1130 _end = self._end 1131 _peek = self._peek 1132 1133 while _peek.isalnum(): 1134 _col += 1 1135 _current += 1 1136 _end = _current >= self.size 1137 _peek = "" if _end else self.sql[_current] 1138 1139 self._col = _col 1140 self._current = _current 1141 self._end = _end 1142 self._peek = _peek 1143 self._char = self.sql[_current - 1] 1144 1145 @property 1146 def _text(self) -> str: 1147 return self.sql[self._start : self._current] 1148 1149 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: 1150 self._prev_token_line = self._line 1151 1152 if self._comments and token_type == TokenType.SEMICOLON and self.tokens: 1153 self.tokens[-1].comments.extend(self._comments) 1154 self._comments = [] 1155 1156 self.tokens.append( 1157 Token( 1158 token_type, 1159 text=self._text if text is None else text, 1160 line=self._line, 1161 col=self._col, 1162 start=self._start, 1163 end=self._current - 1, 1164 comments=self._comments, 1165 ) 1166 ) 1167 self._comments = [] 1168 1169 # If we have either a semicolon or a begin token before the command's token, we'll parse 1170 # whatever follows the command's token as a string 1171 if ( 1172 token_type in self.COMMANDS 1173 and self._peek != ";" 1174 and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS) 1175 ): 1176 start = self._current 1177 tokens = len(self.tokens) 1178 self._scan(lambda: self._peek == ";") 1179 self.tokens = self.tokens[:tokens] 1180 text = self.sql[start : self._current].strip() 1181 if text: 1182 self._add(TokenType.STRING, text) 1183 1184 def _scan_keywords(self) -> None: 1185 size = 0 1186 word = None 1187 chars = self._text 1188 char = chars 1189 prev_space = False 1190 skip = False 1191 trie = self._KEYWORD_TRIE 1192 single_token = char in self.SINGLE_TOKENS 1193 1194 while chars: 1195 if skip: 1196 result = TrieResult.PREFIX 1197 else: 1198 result, trie = in_trie(trie, char.upper()) 1199 1200 if result == TrieResult.FAILED: 1201 break 1202 if result == TrieResult.EXISTS: 1203 word = chars 1204 1205 end = self._current + size 1206 size += 1 1207 1208 if end < self.size: 1209 char = self.sql[end] 1210 single_token = single_token or char in self.SINGLE_TOKENS 1211 is_space = char.isspace() 1212 1213 if not is_space or not prev_space: 1214 if is_space: 1215 char = " " 1216 chars += char 1217 prev_space = is_space 1218 skip = False 1219 else: 1220 skip = True 1221 else: 1222 char = "" 1223 break 1224 1225 if word: 1226 if self._scan_string(word): 1227 return 1228 if self._scan_comment(word): 1229 return 1230 if prev_space or single_token or not char: 1231 self._advance(size - 1) 1232 word = word.upper() 1233 self._add(self.KEYWORDS[word], text=word) 1234 return 1235 1236 if self._char in self.SINGLE_TOKENS: 1237 self._add(self.SINGLE_TOKENS[self._char], text=self._char) 1238 return 1239 1240 self._scan_var() 1241 1242 def _scan_comment(self, comment_start: str) -> bool: 1243 if comment_start not in self._COMMENTS: 1244 return False 1245 1246 comment_start_line = self._line 1247 comment_start_size = len(comment_start) 1248 comment_end = self._COMMENTS[comment_start] 1249 1250 if comment_end: 1251 # Skip the comment's start delimiter 1252 self._advance(comment_start_size) 1253 1254 comment_count = 1 1255 comment_end_size = len(comment_end) 1256 1257 while not self._end: 1258 if self._chars(comment_end_size) == comment_end: 1259 comment_count -= 1 1260 if not comment_count: 1261 break 1262 1263 self._advance(alnum=True) 1264 1265 # Nested comments are allowed by some dialects, e.g. databricks, duckdb, postgres 1266 if ( 1267 self.NESTED_COMMENTS 1268 and not self._end 1269 and self._chars(comment_end_size) == comment_start 1270 ): 1271 self._advance(comment_start_size) 1272 comment_count += 1 1273 1274 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) 1275 self._advance(comment_end_size - 1) 1276 else: 1277 while not self._end and self.WHITE_SPACE.get(self._peek) is not TokenType.BREAK: 1278 self._advance(alnum=True) 1279 self._comments.append(self._text[comment_start_size:]) 1280 1281 if ( 1282 comment_start == self.HINT_START 1283 and self.tokens 1284 and self.tokens[-1].token_type in self.TOKENS_PRECEDING_HINT 1285 ): 1286 self._add(TokenType.HINT) 1287 1288 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. 1289 # Multiple consecutive comments are preserved by appending them to the current comments list. 1290 if comment_start_line == self._prev_token_line: 1291 self.tokens[-1].comments.extend(self._comments) 1292 self._comments = [] 1293 self._prev_token_line = self._line 1294 1295 return True 1296 1297 def _scan_number(self) -> None: 1298 if self._char == "0": 1299 peek = self._peek.upper() 1300 if peek == "B": 1301 return self._scan_bits() if self.BIT_STRINGS else self._add(TokenType.NUMBER) 1302 elif peek == "X": 1303 return self._scan_hex() if self.HEX_STRINGS else self._add(TokenType.NUMBER) 1304 1305 decimal = False 1306 scientific = 0 1307 1308 while True: 1309 if self._peek.isdigit(): 1310 self._advance() 1311 elif self._peek == "." and not decimal: 1312 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER: 1313 return self._add(TokenType.NUMBER) 1314 decimal = True 1315 self._advance() 1316 elif self._peek in ("-", "+") and scientific == 1: 1317 scientific += 1 1318 self._advance() 1319 elif self._peek.upper() == "E" and not scientific: 1320 scientific += 1 1321 self._advance() 1322 elif self._peek.isidentifier(): 1323 number_text = self._text 1324 literal = "" 1325 1326 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: 1327 literal += self._peek 1328 self._advance() 1329 1330 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal.upper(), "")) 1331 1332 if token_type: 1333 self._add(TokenType.NUMBER, number_text) 1334 self._add(TokenType.DCOLON, "::") 1335 return self._add(token_type, literal) 1336 else: 1337 replaced = literal.replace("_", "") 1338 if self.dialect.NUMBERS_CAN_BE_UNDERSCORE_SEPARATED and replaced.isdigit(): 1339 return self._add(TokenType.NUMBER, number_text + replaced) 1340 if self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT: 1341 return self._add(TokenType.VAR) 1342 1343 self._advance(-len(literal)) 1344 return self._add(TokenType.NUMBER, number_text) 1345 else: 1346 return self._add(TokenType.NUMBER) 1347 1348 def _scan_bits(self) -> None: 1349 self._advance() 1350 value = self._extract_value() 1351 try: 1352 # If `value` can't be converted to a binary, fallback to tokenizing it as an identifier 1353 int(value, 2) 1354 self._add(TokenType.BIT_STRING, value[2:]) # Drop the 0b 1355 except ValueError: 1356 self._add(TokenType.IDENTIFIER) 1357 1358 def _scan_hex(self) -> None: 1359 self._advance() 1360 value = self._extract_value() 1361 try: 1362 # If `value` can't be converted to a hex, fallback to tokenizing it as an identifier 1363 int(value, 16) 1364 self._add(TokenType.HEX_STRING, value[2:]) # Drop the 0x 1365 except ValueError: 1366 self._add(TokenType.IDENTIFIER) 1367 1368 def _extract_value(self) -> str: 1369 while True: 1370 char = self._peek.strip() 1371 if char and char not in self.SINGLE_TOKENS: 1372 self._advance(alnum=True) 1373 else: 1374 break 1375 1376 return self._text 1377 1378 def _scan_string(self, start: str) -> bool: 1379 base = None 1380 token_type = TokenType.STRING 1381 1382 if start in self._QUOTES: 1383 end = self._QUOTES[start] 1384 elif start in self._FORMAT_STRINGS: 1385 end, token_type = self._FORMAT_STRINGS[start] 1386 1387 if token_type == TokenType.HEX_STRING: 1388 base = 16 1389 elif token_type == TokenType.BIT_STRING: 1390 base = 2 1391 elif token_type == TokenType.HEREDOC_STRING: 1392 self._advance() 1393 1394 if self._char == end: 1395 tag = "" 1396 else: 1397 tag = self._extract_string( 1398 end, 1399 raw_string=True, 1400 raise_unmatched=not self.HEREDOC_TAG_IS_IDENTIFIER, 1401 ) 1402 1403 if tag and self.HEREDOC_TAG_IS_IDENTIFIER and (self._end or not tag.isidentifier()): 1404 if not self._end: 1405 self._advance(-1) 1406 1407 self._advance(-len(tag)) 1408 self._add(self.HEREDOC_STRING_ALTERNATIVE) 1409 return True 1410 1411 end = f"{start}{tag}{end}" 1412 else: 1413 return False 1414 1415 self._advance(len(start)) 1416 text = self._extract_string(end, raw_string=token_type == TokenType.RAW_STRING) 1417 1418 if base: 1419 try: 1420 int(text, base) 1421 except Exception: 1422 raise TokenError( 1423 f"Numeric string contains invalid characters from {self._line}:{self._start}" 1424 ) 1425 1426 self._add(token_type, text) 1427 return True 1428 1429 def _scan_identifier(self, identifier_end: str) -> None: 1430 self._advance() 1431 text = self._extract_string( 1432 identifier_end, escapes=self._IDENTIFIER_ESCAPES | {identifier_end} 1433 ) 1434 self._add(TokenType.IDENTIFIER, text) 1435 1436 def _scan_var(self) -> None: 1437 while True: 1438 char = self._peek.strip() 1439 if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): 1440 self._advance(alnum=True) 1441 else: 1442 break 1443 1444 self._add( 1445 TokenType.VAR 1446 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER 1447 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) 1448 ) 1449 1450 def _extract_string( 1451 self, 1452 delimiter: str, 1453 escapes: t.Optional[t.Set[str]] = None, 1454 raw_string: bool = False, 1455 raise_unmatched: bool = True, 1456 ) -> str: 1457 text = "" 1458 delim_size = len(delimiter) 1459 escapes = self._STRING_ESCAPES if escapes is None else escapes 1460 1461 while True: 1462 if ( 1463 not raw_string 1464 and self.dialect.UNESCAPED_SEQUENCES 1465 and self._peek 1466 and self._char in self.STRING_ESCAPES 1467 ): 1468 unescaped_sequence = self.dialect.UNESCAPED_SEQUENCES.get(self._char + self._peek) 1469 if unescaped_sequence: 1470 self._advance(2) 1471 text += unescaped_sequence 1472 continue 1473 if ( 1474 (self.STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS or not raw_string) 1475 and self._char in escapes 1476 and (self._peek == delimiter or self._peek in escapes) 1477 and (self._char not in self._QUOTES or self._char == self._peek) 1478 ): 1479 if self._peek == delimiter: 1480 text += self._peek 1481 else: 1482 text += self._char + self._peek 1483 1484 if self._current + 1 < self.size: 1485 self._advance(2) 1486 else: 1487 raise TokenError(f"Missing {delimiter} from {self._line}:{self._current}") 1488 else: 1489 if self._chars(delim_size) == delimiter: 1490 if delim_size > 1: 1491 self._advance(delim_size - 1) 1492 break 1493 1494 if self._end: 1495 if not raise_unmatched: 1496 return text + self._char 1497 1498 raise TokenError(f"Missing {delimiter} from {self._line}:{self._start}") 1499 1500 current = self._current - 1 1501 self._advance(alnum=True) 1502 text += self.sql[current : self._current - 1] 1503 1504 return text 1505 1506 def tokenize_rs(self, sql: str) -> t.List[Token]: 1507 if not self._RS_TOKENIZER: 1508 raise SqlglotError("Rust tokenizer is not available") 1509 1510 tokens, error_msg = self._RS_TOKENIZER.tokenize(sql, self._rs_dialect_settings) 1511 for token in tokens: 1512 token.token_type = _ALL_TOKEN_TYPES[token.token_type_index] 1513 1514 # Setting this here so partial token lists can be inspected even if there is a failure 1515 self.tokens = tokens 1516 1517 if error_msg is not None: 1518 raise TokenError(error_msg) 1519 1520 return tokens
29class TokenType(AutoName): 30 L_PAREN = auto() 31 R_PAREN = auto() 32 L_BRACKET = auto() 33 R_BRACKET = auto() 34 L_BRACE = auto() 35 R_BRACE = auto() 36 COMMA = auto() 37 DOT = auto() 38 DASH = auto() 39 PLUS = auto() 40 COLON = auto() 41 DOTCOLON = auto() 42 DCOLON = auto() 43 DQMARK = auto() 44 SEMICOLON = auto() 45 STAR = auto() 46 BACKSLASH = auto() 47 SLASH = auto() 48 LT = auto() 49 LTE = auto() 50 GT = auto() 51 GTE = auto() 52 NOT = auto() 53 EQ = auto() 54 NEQ = auto() 55 NULLSAFE_EQ = auto() 56 COLON_EQ = auto() 57 AND = auto() 58 OR = auto() 59 AMP = auto() 60 DPIPE = auto() 61 PIPE_GT = auto() 62 PIPE = auto() 63 PIPE_SLASH = auto() 64 DPIPE_SLASH = auto() 65 CARET = auto() 66 CARET_AT = auto() 67 TILDA = auto() 68 ARROW = auto() 69 DARROW = auto() 70 FARROW = auto() 71 HASH = auto() 72 HASH_ARROW = auto() 73 DHASH_ARROW = auto() 74 LR_ARROW = auto() 75 DAT = auto() 76 LT_AT = auto() 77 AT_GT = auto() 78 DOLLAR = auto() 79 PARAMETER = auto() 80 SESSION_PARAMETER = auto() 81 DAMP = auto() 82 XOR = auto() 83 DSTAR = auto() 84 85 URI_START = auto() 86 87 BLOCK_START = auto() 88 BLOCK_END = auto() 89 90 SPACE = auto() 91 BREAK = auto() 92 93 STRING = auto() 94 NUMBER = auto() 95 IDENTIFIER = auto() 96 DATABASE = auto() 97 COLUMN = auto() 98 COLUMN_DEF = auto() 99 SCHEMA = auto() 100 TABLE = auto() 101 WAREHOUSE = auto() 102 STAGE = auto() 103 STREAMLIT = auto() 104 VAR = auto() 105 BIT_STRING = auto() 106 HEX_STRING = auto() 107 BYTE_STRING = auto() 108 NATIONAL_STRING = auto() 109 RAW_STRING = auto() 110 HEREDOC_STRING = auto() 111 UNICODE_STRING = auto() 112 113 # types 114 BIT = auto() 115 BOOLEAN = auto() 116 TINYINT = auto() 117 UTINYINT = auto() 118 SMALLINT = auto() 119 USMALLINT = auto() 120 MEDIUMINT = auto() 121 UMEDIUMINT = auto() 122 INT = auto() 123 UINT = auto() 124 BIGINT = auto() 125 UBIGINT = auto() 126 INT128 = auto() 127 UINT128 = auto() 128 INT256 = auto() 129 UINT256 = auto() 130 FLOAT = auto() 131 DOUBLE = auto() 132 UDOUBLE = auto() 133 DECIMAL = auto() 134 DECIMAL32 = auto() 135 DECIMAL64 = auto() 136 DECIMAL128 = auto() 137 DECIMAL256 = auto() 138 UDECIMAL = auto() 139 BIGDECIMAL = auto() 140 CHAR = auto() 141 NCHAR = auto() 142 VARCHAR = auto() 143 NVARCHAR = auto() 144 BPCHAR = auto() 145 TEXT = auto() 146 MEDIUMTEXT = auto() 147 LONGTEXT = auto() 148 BLOB = auto() 149 MEDIUMBLOB = auto() 150 LONGBLOB = auto() 151 TINYBLOB = auto() 152 TINYTEXT = auto() 153 NAME = auto() 154 BINARY = auto() 155 VARBINARY = auto() 156 JSON = auto() 157 JSONB = auto() 158 TIME = auto() 159 TIMETZ = auto() 160 TIMESTAMP = auto() 161 TIMESTAMPTZ = auto() 162 TIMESTAMPLTZ = auto() 163 TIMESTAMPNTZ = auto() 164 TIMESTAMP_S = auto() 165 TIMESTAMP_MS = auto() 166 TIMESTAMP_NS = auto() 167 DATETIME = auto() 168 DATETIME2 = auto() 169 DATETIME64 = auto() 170 SMALLDATETIME = auto() 171 DATE = auto() 172 DATE32 = auto() 173 INT4RANGE = auto() 174 INT4MULTIRANGE = auto() 175 INT8RANGE = auto() 176 INT8MULTIRANGE = auto() 177 NUMRANGE = auto() 178 NUMMULTIRANGE = auto() 179 TSRANGE = auto() 180 TSMULTIRANGE = auto() 181 TSTZRANGE = auto() 182 TSTZMULTIRANGE = auto() 183 DATERANGE = auto() 184 DATEMULTIRANGE = auto() 185 UUID = auto() 186 GEOGRAPHY = auto() 187 NULLABLE = auto() 188 GEOMETRY = auto() 189 POINT = auto() 190 RING = auto() 191 LINESTRING = auto() 192 MULTILINESTRING = auto() 193 POLYGON = auto() 194 MULTIPOLYGON = auto() 195 HLLSKETCH = auto() 196 HSTORE = auto() 197 SUPER = auto() 198 SERIAL = auto() 199 SMALLSERIAL = auto() 200 BIGSERIAL = auto() 201 XML = auto() 202 YEAR = auto() 203 USERDEFINED = auto() 204 MONEY = auto() 205 SMALLMONEY = auto() 206 ROWVERSION = auto() 207 IMAGE = auto() 208 VARIANT = auto() 209 OBJECT = auto() 210 INET = auto() 211 IPADDRESS = auto() 212 IPPREFIX = auto() 213 IPV4 = auto() 214 IPV6 = auto() 215 ENUM = auto() 216 ENUM8 = auto() 217 ENUM16 = auto() 218 FIXEDSTRING = auto() 219 LOWCARDINALITY = auto() 220 NESTED = auto() 221 AGGREGATEFUNCTION = auto() 222 SIMPLEAGGREGATEFUNCTION = auto() 223 TDIGEST = auto() 224 UNKNOWN = auto() 225 VECTOR = auto() 226 DYNAMIC = auto() 227 VOID = auto() 228 229 # keywords 230 ALIAS = auto() 231 ALTER = auto() 232 ALWAYS = auto() 233 ALL = auto() 234 ANTI = auto() 235 ANY = auto() 236 APPLY = auto() 237 ARRAY = auto() 238 ASC = auto() 239 ASOF = auto() 240 ATTACH = auto() 241 AUTO_INCREMENT = auto() 242 BEGIN = auto() 243 BETWEEN = auto() 244 BULK_COLLECT_INTO = auto() 245 CACHE = auto() 246 CASE = auto() 247 CHARACTER_SET = auto() 248 CLUSTER_BY = auto() 249 COLLATE = auto() 250 COMMAND = auto() 251 COMMENT = auto() 252 COMMIT = auto() 253 CONNECT_BY = auto() 254 CONSTRAINT = auto() 255 COPY = auto() 256 CREATE = auto() 257 CROSS = auto() 258 CUBE = auto() 259 CURRENT_DATE = auto() 260 CURRENT_DATETIME = auto() 261 CURRENT_SCHEMA = auto() 262 CURRENT_TIME = auto() 263 CURRENT_TIMESTAMP = auto() 264 CURRENT_USER = auto() 265 DECLARE = auto() 266 DEFAULT = auto() 267 DELETE = auto() 268 DESC = auto() 269 DESCRIBE = auto() 270 DETACH = auto() 271 DICTIONARY = auto() 272 DISTINCT = auto() 273 DISTRIBUTE_BY = auto() 274 DIV = auto() 275 DROP = auto() 276 ELSE = auto() 277 END = auto() 278 ESCAPE = auto() 279 EXCEPT = auto() 280 EXECUTE = auto() 281 EXISTS = auto() 282 FALSE = auto() 283 FETCH = auto() 284 FILE_FORMAT = auto() 285 FILTER = auto() 286 FINAL = auto() 287 FIRST = auto() 288 FOR = auto() 289 FORCE = auto() 290 FOREIGN_KEY = auto() 291 FORMAT = auto() 292 FROM = auto() 293 FULL = auto() 294 FUNCTION = auto() 295 GET = auto() 296 GLOB = auto() 297 GLOBAL = auto() 298 GRANT = auto() 299 GROUP_BY = auto() 300 GROUPING_SETS = auto() 301 HAVING = auto() 302 HINT = auto() 303 IGNORE = auto() 304 ILIKE = auto() 305 ILIKE_ANY = auto() 306 IN = auto() 307 INDEX = auto() 308 INNER = auto() 309 INSERT = auto() 310 INTERSECT = auto() 311 INTERVAL = auto() 312 INTO = auto() 313 INTRODUCER = auto() 314 IRLIKE = auto() 315 IS = auto() 316 ISNULL = auto() 317 JOIN = auto() 318 JOIN_MARKER = auto() 319 KEEP = auto() 320 KEY = auto() 321 KILL = auto() 322 LANGUAGE = auto() 323 LATERAL = auto() 324 LEFT = auto() 325 LIKE = auto() 326 LIKE_ANY = auto() 327 LIMIT = auto() 328 LIST = auto() 329 LOAD = auto() 330 LOCK = auto() 331 MAP = auto() 332 MATCH_CONDITION = auto() 333 MATCH_RECOGNIZE = auto() 334 MEMBER_OF = auto() 335 MERGE = auto() 336 MOD = auto() 337 MODEL = auto() 338 NATURAL = auto() 339 NEXT = auto() 340 NOTHING = auto() 341 NOTNULL = auto() 342 NULL = auto() 343 OBJECT_IDENTIFIER = auto() 344 OFFSET = auto() 345 ON = auto() 346 ONLY = auto() 347 OPERATOR = auto() 348 ORDER_BY = auto() 349 ORDER_SIBLINGS_BY = auto() 350 ORDERED = auto() 351 ORDINALITY = auto() 352 OUTER = auto() 353 OVER = auto() 354 OVERLAPS = auto() 355 OVERWRITE = auto() 356 PARTITION = auto() 357 PARTITION_BY = auto() 358 PERCENT = auto() 359 PIVOT = auto() 360 PLACEHOLDER = auto() 361 POSITIONAL = auto() 362 PRAGMA = auto() 363 PREWHERE = auto() 364 PRIMARY_KEY = auto() 365 PROCEDURE = auto() 366 PROPERTIES = auto() 367 PSEUDO_TYPE = auto() 368 PUT = auto() 369 QUALIFY = auto() 370 QUOTE = auto() 371 RANGE = auto() 372 RECURSIVE = auto() 373 REFRESH = auto() 374 RENAME = auto() 375 REPLACE = auto() 376 RETURNING = auto() 377 REFERENCES = auto() 378 RIGHT = auto() 379 RLIKE = auto() 380 ROLLBACK = auto() 381 ROLLUP = auto() 382 ROW = auto() 383 ROWS = auto() 384 SELECT = auto() 385 SEMI = auto() 386 SEPARATOR = auto() 387 SEQUENCE = auto() 388 SERDE_PROPERTIES = auto() 389 SET = auto() 390 SETTINGS = auto() 391 SHOW = auto() 392 SIMILAR_TO = auto() 393 SOME = auto() 394 SORT_BY = auto() 395 START_WITH = auto() 396 STORAGE_INTEGRATION = auto() 397 STRAIGHT_JOIN = auto() 398 STRUCT = auto() 399 SUMMARIZE = auto() 400 TABLE_SAMPLE = auto() 401 TAG = auto() 402 TEMPORARY = auto() 403 TOP = auto() 404 THEN = auto() 405 TRUE = auto() 406 TRUNCATE = auto() 407 UNCACHE = auto() 408 UNION = auto() 409 UNNEST = auto() 410 UNPIVOT = auto() 411 UPDATE = auto() 412 USE = auto() 413 USING = auto() 414 VALUES = auto() 415 VIEW = auto() 416 VOLATILE = auto() 417 WHEN = auto() 418 WHERE = auto() 419 WINDOW = auto() 420 WITH = auto() 421 UNIQUE = auto() 422 VERSION_SNAPSHOT = auto() 423 TIMESTAMP_SNAPSHOT = auto() 424 OPTION = auto() 425 SINK = auto() 426 SOURCE = auto() 427 ANALYZE = auto() 428 NAMESPACE = auto() 429 EXPORT = auto()
An enumeration.
L_PAREN =
<TokenType.L_PAREN: 'L_PAREN'>
R_PAREN =
<TokenType.R_PAREN: 'R_PAREN'>
L_BRACKET =
<TokenType.L_BRACKET: 'L_BRACKET'>
R_BRACKET =
<TokenType.R_BRACKET: 'R_BRACKET'>
L_BRACE =
<TokenType.L_BRACE: 'L_BRACE'>
R_BRACE =
<TokenType.R_BRACE: 'R_BRACE'>
COMMA =
<TokenType.COMMA: 'COMMA'>
DOT =
<TokenType.DOT: 'DOT'>
DASH =
<TokenType.DASH: 'DASH'>
PLUS =
<TokenType.PLUS: 'PLUS'>
COLON =
<TokenType.COLON: 'COLON'>
DOTCOLON =
<TokenType.DOTCOLON: 'DOTCOLON'>
DCOLON =
<TokenType.DCOLON: 'DCOLON'>
DQMARK =
<TokenType.DQMARK: 'DQMARK'>
SEMICOLON =
<TokenType.SEMICOLON: 'SEMICOLON'>
STAR =
<TokenType.STAR: 'STAR'>
BACKSLASH =
<TokenType.BACKSLASH: 'BACKSLASH'>
SLASH =
<TokenType.SLASH: 'SLASH'>
LT =
<TokenType.LT: 'LT'>
LTE =
<TokenType.LTE: 'LTE'>
GT =
<TokenType.GT: 'GT'>
GTE =
<TokenType.GTE: 'GTE'>
NOT =
<TokenType.NOT: 'NOT'>
EQ =
<TokenType.EQ: 'EQ'>
NEQ =
<TokenType.NEQ: 'NEQ'>
NULLSAFE_EQ =
<TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>
COLON_EQ =
<TokenType.COLON_EQ: 'COLON_EQ'>
AND =
<TokenType.AND: 'AND'>
OR =
<TokenType.OR: 'OR'>
AMP =
<TokenType.AMP: 'AMP'>
DPIPE =
<TokenType.DPIPE: 'DPIPE'>
PIPE_GT =
<TokenType.PIPE_GT: 'PIPE_GT'>
PIPE =
<TokenType.PIPE: 'PIPE'>
PIPE_SLASH =
<TokenType.PIPE_SLASH: 'PIPE_SLASH'>
DPIPE_SLASH =
<TokenType.DPIPE_SLASH: 'DPIPE_SLASH'>
CARET =
<TokenType.CARET: 'CARET'>
CARET_AT =
<TokenType.CARET_AT: 'CARET_AT'>
TILDA =
<TokenType.TILDA: 'TILDA'>
ARROW =
<TokenType.ARROW: 'ARROW'>
DARROW =
<TokenType.DARROW: 'DARROW'>
FARROW =
<TokenType.FARROW: 'FARROW'>
HASH =
<TokenType.HASH: 'HASH'>
HASH_ARROW =
<TokenType.HASH_ARROW: 'HASH_ARROW'>
DHASH_ARROW =
<TokenType.DHASH_ARROW: 'DHASH_ARROW'>
LR_ARROW =
<TokenType.LR_ARROW: 'LR_ARROW'>
DAT =
<TokenType.DAT: 'DAT'>
LT_AT =
<TokenType.LT_AT: 'LT_AT'>
AT_GT =
<TokenType.AT_GT: 'AT_GT'>
DOLLAR =
<TokenType.DOLLAR: 'DOLLAR'>
PARAMETER =
<TokenType.PARAMETER: 'PARAMETER'>
SESSION_PARAMETER =
<TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>
DAMP =
<TokenType.DAMP: 'DAMP'>
XOR =
<TokenType.XOR: 'XOR'>
DSTAR =
<TokenType.DSTAR: 'DSTAR'>
URI_START =
<TokenType.URI_START: 'URI_START'>
BLOCK_START =
<TokenType.BLOCK_START: 'BLOCK_START'>
BLOCK_END =
<TokenType.BLOCK_END: 'BLOCK_END'>
SPACE =
<TokenType.SPACE: 'SPACE'>
BREAK =
<TokenType.BREAK: 'BREAK'>
STRING =
<TokenType.STRING: 'STRING'>
NUMBER =
<TokenType.NUMBER: 'NUMBER'>
IDENTIFIER =
<TokenType.IDENTIFIER: 'IDENTIFIER'>
DATABASE =
<TokenType.DATABASE: 'DATABASE'>
COLUMN =
<TokenType.COLUMN: 'COLUMN'>
COLUMN_DEF =
<TokenType.COLUMN_DEF: 'COLUMN_DEF'>
SCHEMA =
<TokenType.SCHEMA: 'SCHEMA'>
TABLE =
<TokenType.TABLE: 'TABLE'>
WAREHOUSE =
<TokenType.WAREHOUSE: 'WAREHOUSE'>
STAGE =
<TokenType.STAGE: 'STAGE'>
STREAMLIT =
<TokenType.STREAMLIT: 'STREAMLIT'>
VAR =
<TokenType.VAR: 'VAR'>
BIT_STRING =
<TokenType.BIT_STRING: 'BIT_STRING'>
HEX_STRING =
<TokenType.HEX_STRING: 'HEX_STRING'>
BYTE_STRING =
<TokenType.BYTE_STRING: 'BYTE_STRING'>
NATIONAL_STRING =
<TokenType.NATIONAL_STRING: 'NATIONAL_STRING'>
RAW_STRING =
<TokenType.RAW_STRING: 'RAW_STRING'>
HEREDOC_STRING =
<TokenType.HEREDOC_STRING: 'HEREDOC_STRING'>
UNICODE_STRING =
<TokenType.UNICODE_STRING: 'UNICODE_STRING'>
BIT =
<TokenType.BIT: 'BIT'>
BOOLEAN =
<TokenType.BOOLEAN: 'BOOLEAN'>
TINYINT =
<TokenType.TINYINT: 'TINYINT'>
UTINYINT =
<TokenType.UTINYINT: 'UTINYINT'>
SMALLINT =
<TokenType.SMALLINT: 'SMALLINT'>
USMALLINT =
<TokenType.USMALLINT: 'USMALLINT'>
MEDIUMINT =
<TokenType.MEDIUMINT: 'MEDIUMINT'>
UMEDIUMINT =
<TokenType.UMEDIUMINT: 'UMEDIUMINT'>
INT =
<TokenType.INT: 'INT'>
UINT =
<TokenType.UINT: 'UINT'>
BIGINT =
<TokenType.BIGINT: 'BIGINT'>
UBIGINT =
<TokenType.UBIGINT: 'UBIGINT'>
INT128 =
<TokenType.INT128: 'INT128'>
UINT128 =
<TokenType.UINT128: 'UINT128'>
INT256 =
<TokenType.INT256: 'INT256'>
UINT256 =
<TokenType.UINT256: 'UINT256'>
FLOAT =
<TokenType.FLOAT: 'FLOAT'>
DOUBLE =
<TokenType.DOUBLE: 'DOUBLE'>
UDOUBLE =
<TokenType.UDOUBLE: 'UDOUBLE'>
DECIMAL =
<TokenType.DECIMAL: 'DECIMAL'>
DECIMAL32 =
<TokenType.DECIMAL32: 'DECIMAL32'>
DECIMAL64 =
<TokenType.DECIMAL64: 'DECIMAL64'>
DECIMAL128 =
<TokenType.DECIMAL128: 'DECIMAL128'>
DECIMAL256 =
<TokenType.DECIMAL256: 'DECIMAL256'>
UDECIMAL =
<TokenType.UDECIMAL: 'UDECIMAL'>
BIGDECIMAL =
<TokenType.BIGDECIMAL: 'BIGDECIMAL'>
CHAR =
<TokenType.CHAR: 'CHAR'>
NCHAR =
<TokenType.NCHAR: 'NCHAR'>
VARCHAR =
<TokenType.VARCHAR: 'VARCHAR'>
NVARCHAR =
<TokenType.NVARCHAR: 'NVARCHAR'>
BPCHAR =
<TokenType.BPCHAR: 'BPCHAR'>
TEXT =
<TokenType.TEXT: 'TEXT'>
MEDIUMTEXT =
<TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>
LONGTEXT =
<TokenType.LONGTEXT: 'LONGTEXT'>
BLOB =
<TokenType.BLOB: 'BLOB'>
MEDIUMBLOB =
<TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>
LONGBLOB =
<TokenType.LONGBLOB: 'LONGBLOB'>
TINYBLOB =
<TokenType.TINYBLOB: 'TINYBLOB'>
TINYTEXT =
<TokenType.TINYTEXT: 'TINYTEXT'>
NAME =
<TokenType.NAME: 'NAME'>
BINARY =
<TokenType.BINARY: 'BINARY'>
VARBINARY =
<TokenType.VARBINARY: 'VARBINARY'>
JSON =
<TokenType.JSON: 'JSON'>
JSONB =
<TokenType.JSONB: 'JSONB'>
TIME =
<TokenType.TIME: 'TIME'>
TIMETZ =
<TokenType.TIMETZ: 'TIMETZ'>
TIMESTAMP =
<TokenType.TIMESTAMP: 'TIMESTAMP'>
TIMESTAMPTZ =
<TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>
TIMESTAMPLTZ =
<TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>
TIMESTAMPNTZ =
<TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>
TIMESTAMP_S =
<TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>
TIMESTAMP_MS =
<TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>
TIMESTAMP_NS =
<TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>
DATETIME =
<TokenType.DATETIME: 'DATETIME'>
DATETIME2 =
<TokenType.DATETIME2: 'DATETIME2'>
DATETIME64 =
<TokenType.DATETIME64: 'DATETIME64'>
SMALLDATETIME =
<TokenType.SMALLDATETIME: 'SMALLDATETIME'>
DATE =
<TokenType.DATE: 'DATE'>
DATE32 =
<TokenType.DATE32: 'DATE32'>
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'>
UUID =
<TokenType.UUID: 'UUID'>
GEOGRAPHY =
<TokenType.GEOGRAPHY: 'GEOGRAPHY'>
NULLABLE =
<TokenType.NULLABLE: 'NULLABLE'>
GEOMETRY =
<TokenType.GEOMETRY: 'GEOMETRY'>
POINT =
<TokenType.POINT: 'POINT'>
RING =
<TokenType.RING: 'RING'>
LINESTRING =
<TokenType.LINESTRING: 'LINESTRING'>
MULTILINESTRING =
<TokenType.MULTILINESTRING: 'MULTILINESTRING'>
POLYGON =
<TokenType.POLYGON: 'POLYGON'>
MULTIPOLYGON =
<TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>
HLLSKETCH =
<TokenType.HLLSKETCH: 'HLLSKETCH'>
HSTORE =
<TokenType.HSTORE: 'HSTORE'>
SUPER =
<TokenType.SUPER: 'SUPER'>
SERIAL =
<TokenType.SERIAL: 'SERIAL'>
SMALLSERIAL =
<TokenType.SMALLSERIAL: 'SMALLSERIAL'>
BIGSERIAL =
<TokenType.BIGSERIAL: 'BIGSERIAL'>
XML =
<TokenType.XML: 'XML'>
YEAR =
<TokenType.YEAR: 'YEAR'>
USERDEFINED =
<TokenType.USERDEFINED: 'USERDEFINED'>
MONEY =
<TokenType.MONEY: 'MONEY'>
SMALLMONEY =
<TokenType.SMALLMONEY: 'SMALLMONEY'>
ROWVERSION =
<TokenType.ROWVERSION: 'ROWVERSION'>
IMAGE =
<TokenType.IMAGE: 'IMAGE'>
VARIANT =
<TokenType.VARIANT: 'VARIANT'>
OBJECT =
<TokenType.OBJECT: 'OBJECT'>
INET =
<TokenType.INET: 'INET'>
IPADDRESS =
<TokenType.IPADDRESS: 'IPADDRESS'>
IPPREFIX =
<TokenType.IPPREFIX: 'IPPREFIX'>
IPV4 =
<TokenType.IPV4: 'IPV4'>
IPV6 =
<TokenType.IPV6: 'IPV6'>
ENUM =
<TokenType.ENUM: 'ENUM'>
ENUM8 =
<TokenType.ENUM8: 'ENUM8'>
ENUM16 =
<TokenType.ENUM16: 'ENUM16'>
FIXEDSTRING =
<TokenType.FIXEDSTRING: 'FIXEDSTRING'>
LOWCARDINALITY =
<TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>
NESTED =
<TokenType.NESTED: 'NESTED'>
AGGREGATEFUNCTION =
<TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>
SIMPLEAGGREGATEFUNCTION =
<TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>
TDIGEST =
<TokenType.TDIGEST: 'TDIGEST'>
UNKNOWN =
<TokenType.UNKNOWN: 'UNKNOWN'>
VECTOR =
<TokenType.VECTOR: 'VECTOR'>
DYNAMIC =
<TokenType.DYNAMIC: 'DYNAMIC'>
VOID =
<TokenType.VOID: 'VOID'>
ALIAS =
<TokenType.ALIAS: 'ALIAS'>
ALTER =
<TokenType.ALTER: 'ALTER'>
ALWAYS =
<TokenType.ALWAYS: 'ALWAYS'>
ALL =
<TokenType.ALL: 'ALL'>
ANTI =
<TokenType.ANTI: 'ANTI'>
ANY =
<TokenType.ANY: 'ANY'>
APPLY =
<TokenType.APPLY: 'APPLY'>
ARRAY =
<TokenType.ARRAY: 'ARRAY'>
ASC =
<TokenType.ASC: 'ASC'>
ASOF =
<TokenType.ASOF: 'ASOF'>
ATTACH =
<TokenType.ATTACH: 'ATTACH'>
AUTO_INCREMENT =
<TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>
BEGIN =
<TokenType.BEGIN: 'BEGIN'>
BETWEEN =
<TokenType.BETWEEN: 'BETWEEN'>
BULK_COLLECT_INTO =
<TokenType.BULK_COLLECT_INTO: 'BULK_COLLECT_INTO'>
CACHE =
<TokenType.CACHE: 'CACHE'>
CASE =
<TokenType.CASE: 'CASE'>
CHARACTER_SET =
<TokenType.CHARACTER_SET: 'CHARACTER_SET'>
CLUSTER_BY =
<TokenType.CLUSTER_BY: 'CLUSTER_BY'>
COLLATE =
<TokenType.COLLATE: 'COLLATE'>
COMMAND =
<TokenType.COMMAND: 'COMMAND'>
COMMENT =
<TokenType.COMMENT: 'COMMENT'>
COMMIT =
<TokenType.COMMIT: 'COMMIT'>
CONNECT_BY =
<TokenType.CONNECT_BY: 'CONNECT_BY'>
CONSTRAINT =
<TokenType.CONSTRAINT: 'CONSTRAINT'>
COPY =
<TokenType.COPY: 'COPY'>
CREATE =
<TokenType.CREATE: 'CREATE'>
CROSS =
<TokenType.CROSS: 'CROSS'>
CUBE =
<TokenType.CUBE: 'CUBE'>
CURRENT_DATE =
<TokenType.CURRENT_DATE: 'CURRENT_DATE'>
CURRENT_DATETIME =
<TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>
CURRENT_SCHEMA =
<TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>
CURRENT_TIME =
<TokenType.CURRENT_TIME: 'CURRENT_TIME'>
CURRENT_TIMESTAMP =
<TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>
CURRENT_USER =
<TokenType.CURRENT_USER: 'CURRENT_USER'>
DECLARE =
<TokenType.DECLARE: 'DECLARE'>
DEFAULT =
<TokenType.DEFAULT: 'DEFAULT'>
DELETE =
<TokenType.DELETE: 'DELETE'>
DESC =
<TokenType.DESC: 'DESC'>
DESCRIBE =
<TokenType.DESCRIBE: 'DESCRIBE'>
DETACH =
<TokenType.DETACH: 'DETACH'>
DICTIONARY =
<TokenType.DICTIONARY: 'DICTIONARY'>
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'>
FILE_FORMAT =
<TokenType.FILE_FORMAT: 'FILE_FORMAT'>
FILTER =
<TokenType.FILTER: 'FILTER'>
FINAL =
<TokenType.FINAL: 'FINAL'>
FIRST =
<TokenType.FIRST: 'FIRST'>
FOR =
<TokenType.FOR: 'FOR'>
FORCE =
<TokenType.FORCE: 'FORCE'>
FOREIGN_KEY =
<TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>
FORMAT =
<TokenType.FORMAT: 'FORMAT'>
FROM =
<TokenType.FROM: 'FROM'>
FULL =
<TokenType.FULL: 'FULL'>
FUNCTION =
<TokenType.FUNCTION: 'FUNCTION'>
GET =
<TokenType.GET: 'GET'>
GLOB =
<TokenType.GLOB: 'GLOB'>
GLOBAL =
<TokenType.GLOBAL: 'GLOBAL'>
GRANT =
<TokenType.GRANT: 'GRANT'>
GROUP_BY =
<TokenType.GROUP_BY: 'GROUP_BY'>
GROUPING_SETS =
<TokenType.GROUPING_SETS: 'GROUPING_SETS'>
HAVING =
<TokenType.HAVING: 'HAVING'>
HINT =
<TokenType.HINT: 'HINT'>
IGNORE =
<TokenType.IGNORE: 'IGNORE'>
ILIKE =
<TokenType.ILIKE: 'ILIKE'>
ILIKE_ANY =
<TokenType.ILIKE_ANY: 'ILIKE_ANY'>
IN =
<TokenType.IN: 'IN'>
INDEX =
<TokenType.INDEX: 'INDEX'>
INNER =
<TokenType.INNER: 'INNER'>
INSERT =
<TokenType.INSERT: 'INSERT'>
INTERSECT =
<TokenType.INTERSECT: 'INTERSECT'>
INTERVAL =
<TokenType.INTERVAL: 'INTERVAL'>
INTO =
<TokenType.INTO: 'INTO'>
INTRODUCER =
<TokenType.INTRODUCER: 'INTRODUCER'>
IRLIKE =
<TokenType.IRLIKE: 'IRLIKE'>
IS =
<TokenType.IS: 'IS'>
ISNULL =
<TokenType.ISNULL: 'ISNULL'>
JOIN =
<TokenType.JOIN: 'JOIN'>
JOIN_MARKER =
<TokenType.JOIN_MARKER: 'JOIN_MARKER'>
KEEP =
<TokenType.KEEP: 'KEEP'>
KEY =
<TokenType.KEY: 'KEY'>
KILL =
<TokenType.KILL: 'KILL'>
LANGUAGE =
<TokenType.LANGUAGE: 'LANGUAGE'>
LATERAL =
<TokenType.LATERAL: 'LATERAL'>
LEFT =
<TokenType.LEFT: 'LEFT'>
LIKE =
<TokenType.LIKE: 'LIKE'>
LIKE_ANY =
<TokenType.LIKE_ANY: 'LIKE_ANY'>
LIMIT =
<TokenType.LIMIT: 'LIMIT'>
LIST =
<TokenType.LIST: 'LIST'>
LOAD =
<TokenType.LOAD: 'LOAD'>
LOCK =
<TokenType.LOCK: 'LOCK'>
MAP =
<TokenType.MAP: 'MAP'>
MATCH_CONDITION =
<TokenType.MATCH_CONDITION: 'MATCH_CONDITION'>
MATCH_RECOGNIZE =
<TokenType.MATCH_RECOGNIZE: 'MATCH_RECOGNIZE'>
MEMBER_OF =
<TokenType.MEMBER_OF: 'MEMBER_OF'>
MERGE =
<TokenType.MERGE: 'MERGE'>
MOD =
<TokenType.MOD: 'MOD'>
MODEL =
<TokenType.MODEL: 'MODEL'>
NATURAL =
<TokenType.NATURAL: 'NATURAL'>
NEXT =
<TokenType.NEXT: 'NEXT'>
NOTHING =
<TokenType.NOTHING: 'NOTHING'>
NOTNULL =
<TokenType.NOTNULL: 'NOTNULL'>
NULL =
<TokenType.NULL: 'NULL'>
OBJECT_IDENTIFIER =
<TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>
OFFSET =
<TokenType.OFFSET: 'OFFSET'>
ON =
<TokenType.ON: 'ON'>
ONLY =
<TokenType.ONLY: 'ONLY'>
OPERATOR =
<TokenType.OPERATOR: 'OPERATOR'>
ORDER_BY =
<TokenType.ORDER_BY: 'ORDER_BY'>
ORDER_SIBLINGS_BY =
<TokenType.ORDER_SIBLINGS_BY: 'ORDER_SIBLINGS_BY'>
ORDERED =
<TokenType.ORDERED: 'ORDERED'>
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'>
PERCENT =
<TokenType.PERCENT: 'PERCENT'>
PIVOT =
<TokenType.PIVOT: 'PIVOT'>
PLACEHOLDER =
<TokenType.PLACEHOLDER: 'PLACEHOLDER'>
POSITIONAL =
<TokenType.POSITIONAL: 'POSITIONAL'>
PRAGMA =
<TokenType.PRAGMA: 'PRAGMA'>
PREWHERE =
<TokenType.PREWHERE: 'PREWHERE'>
PRIMARY_KEY =
<TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>
PROCEDURE =
<TokenType.PROCEDURE: 'PROCEDURE'>
PROPERTIES =
<TokenType.PROPERTIES: 'PROPERTIES'>
PSEUDO_TYPE =
<TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>
PUT =
<TokenType.PUT: 'PUT'>
QUALIFY =
<TokenType.QUALIFY: 'QUALIFY'>
QUOTE =
<TokenType.QUOTE: 'QUOTE'>
RANGE =
<TokenType.RANGE: 'RANGE'>
RECURSIVE =
<TokenType.RECURSIVE: 'RECURSIVE'>
REFRESH =
<TokenType.REFRESH: 'REFRESH'>
RENAME =
<TokenType.RENAME: 'RENAME'>
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'>
SELECT =
<TokenType.SELECT: 'SELECT'>
SEMI =
<TokenType.SEMI: 'SEMI'>
SEPARATOR =
<TokenType.SEPARATOR: 'SEPARATOR'>
SEQUENCE =
<TokenType.SEQUENCE: 'SEQUENCE'>
SERDE_PROPERTIES =
<TokenType.SERDE_PROPERTIES: 'SERDE_PROPERTIES'>
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'>
STORAGE_INTEGRATION =
<TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>
STRAIGHT_JOIN =
<TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>
STRUCT =
<TokenType.STRUCT: 'STRUCT'>
SUMMARIZE =
<TokenType.SUMMARIZE: 'SUMMARIZE'>
TABLE_SAMPLE =
<TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>
TAG =
<TokenType.TAG: 'TAG'>
TEMPORARY =
<TokenType.TEMPORARY: 'TEMPORARY'>
TOP =
<TokenType.TOP: 'TOP'>
THEN =
<TokenType.THEN: 'THEN'>
TRUE =
<TokenType.TRUE: 'TRUE'>
TRUNCATE =
<TokenType.TRUNCATE: 'TRUNCATE'>
UNCACHE =
<TokenType.UNCACHE: 'UNCACHE'>
UNION =
<TokenType.UNION: 'UNION'>
UNNEST =
<TokenType.UNNEST: 'UNNEST'>
UNPIVOT =
<TokenType.UNPIVOT: 'UNPIVOT'>
UPDATE =
<TokenType.UPDATE: 'UPDATE'>
USE =
<TokenType.USE: 'USE'>
USING =
<TokenType.USING: 'USING'>
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'>
UNIQUE =
<TokenType.UNIQUE: 'UNIQUE'>
VERSION_SNAPSHOT =
<TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>
TIMESTAMP_SNAPSHOT =
<TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>
OPTION =
<TokenType.OPTION: 'OPTION'>
SINK =
<TokenType.SINK: 'SINK'>
SOURCE =
<TokenType.SOURCE: 'SOURCE'>
ANALYZE =
<TokenType.ANALYZE: 'ANALYZE'>
NAMESPACE =
<TokenType.NAMESPACE: 'NAMESPACE'>
EXPORT =
<TokenType.EXPORT: 'EXPORT'>
class
Token:
436class Token: 437 __slots__ = ("token_type", "text", "line", "col", "start", "end", "comments") 438 439 @classmethod 440 def number(cls, number: int) -> Token: 441 """Returns a NUMBER token with `number` as its text.""" 442 return cls(TokenType.NUMBER, str(number)) 443 444 @classmethod 445 def string(cls, string: str) -> Token: 446 """Returns a STRING token with `string` as its text.""" 447 return cls(TokenType.STRING, string) 448 449 @classmethod 450 def identifier(cls, identifier: str) -> Token: 451 """Returns an IDENTIFIER token with `identifier` as its text.""" 452 return cls(TokenType.IDENTIFIER, identifier) 453 454 @classmethod 455 def var(cls, var: str) -> Token: 456 """Returns an VAR token with `var` as its text.""" 457 return cls(TokenType.VAR, var) 458 459 def __init__( 460 self, 461 token_type: TokenType, 462 text: str, 463 line: int = 1, 464 col: int = 1, 465 start: int = 0, 466 end: int = 0, 467 comments: t.Optional[t.List[str]] = None, 468 ) -> None: 469 """Token initializer. 470 471 Args: 472 token_type: The TokenType Enum. 473 text: The text of the token. 474 line: The line that the token ends on. 475 col: The column that the token ends on. 476 start: The start index of the token. 477 end: The ending index of the token. 478 comments: The comments to attach to the token. 479 """ 480 self.token_type = token_type 481 self.text = text 482 self.line = line 483 self.col = col 484 self.start = start 485 self.end = end 486 self.comments = [] if comments is None else comments 487 488 def __repr__(self) -> str: 489 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) 490 return f"<Token {attributes}>"
Token( token_type: TokenType, text: str, line: int = 1, col: int = 1, start: int = 0, end: int = 0, comments: Optional[List[str]] = None)
459 def __init__( 460 self, 461 token_type: TokenType, 462 text: str, 463 line: int = 1, 464 col: int = 1, 465 start: int = 0, 466 end: int = 0, 467 comments: t.Optional[t.List[str]] = None, 468 ) -> None: 469 """Token initializer. 470 471 Args: 472 token_type: The TokenType Enum. 473 text: The text of the token. 474 line: The line that the token ends on. 475 col: The column that the token ends on. 476 start: The start index of the token. 477 end: The ending index of the token. 478 comments: The comments to attach to the token. 479 """ 480 self.token_type = token_type 481 self.text = text 482 self.line = line 483 self.col = col 484 self.start = start 485 self.end = end 486 self.comments = [] if comments is None else comments
Token initializer.
Arguments:
- token_type: The TokenType Enum.
- text: The text of the token.
- line: The line that the token ends on.
- col: The column that the token ends on.
- start: The start index of the token.
- end: The ending index of the token.
- comments: The comments to attach to the token.
439 @classmethod 440 def number(cls, number: int) -> Token: 441 """Returns a NUMBER token with `number` as its text.""" 442 return cls(TokenType.NUMBER, str(number))
Returns a NUMBER token with number
as its text.
444 @classmethod 445 def string(cls, string: str) -> Token: 446 """Returns a STRING token with `string` as its text.""" 447 return cls(TokenType.STRING, string)
Returns a STRING token with string
as its text.
449 @classmethod 450 def identifier(cls, identifier: str) -> Token: 451 """Returns an IDENTIFIER token with `identifier` as its text.""" 452 return cls(TokenType.IDENTIFIER, identifier)
Returns an IDENTIFIER token with identifier
as its text.
class
Tokenizer:
600class Tokenizer(metaclass=_Tokenizer): 601 SINGLE_TOKENS = { 602 "(": TokenType.L_PAREN, 603 ")": TokenType.R_PAREN, 604 "[": TokenType.L_BRACKET, 605 "]": TokenType.R_BRACKET, 606 "{": TokenType.L_BRACE, 607 "}": TokenType.R_BRACE, 608 "&": TokenType.AMP, 609 "^": TokenType.CARET, 610 ":": TokenType.COLON, 611 ",": TokenType.COMMA, 612 ".": TokenType.DOT, 613 "-": TokenType.DASH, 614 "=": TokenType.EQ, 615 ">": TokenType.GT, 616 "<": TokenType.LT, 617 "%": TokenType.MOD, 618 "!": TokenType.NOT, 619 "|": TokenType.PIPE, 620 "+": TokenType.PLUS, 621 ";": TokenType.SEMICOLON, 622 "/": TokenType.SLASH, 623 "\\": TokenType.BACKSLASH, 624 "*": TokenType.STAR, 625 "~": TokenType.TILDA, 626 "?": TokenType.PLACEHOLDER, 627 "@": TokenType.PARAMETER, 628 "#": TokenType.HASH, 629 # Used for breaking a var like x'y' but nothing else the token type doesn't matter 630 "'": TokenType.UNKNOWN, 631 "`": TokenType.UNKNOWN, 632 '"': TokenType.UNKNOWN, 633 } 634 635 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] 636 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 637 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] 638 RAW_STRINGS: t.List[str | t.Tuple[str, str]] = [] 639 HEREDOC_STRINGS: t.List[str | t.Tuple[str, str]] = [] 640 UNICODE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 641 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] 642 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] 643 STRING_ESCAPES = ["'"] 644 VAR_SINGLE_TOKENS: t.Set[str] = set() 645 646 # The strings in this list can always be used as escapes, regardless of the surrounding 647 # identifier delimiters. By default, the closing delimiter is assumed to also act as an 648 # identifier escape, e.g. if we use double-quotes, then they also act as escapes: "x""" 649 IDENTIFIER_ESCAPES: t.List[str] = [] 650 651 # Whether the heredoc tags follow the same lexical rules as unquoted identifiers 652 HEREDOC_TAG_IS_IDENTIFIER = False 653 654 # Token that we'll generate as a fallback if the heredoc prefix doesn't correspond to a heredoc 655 HEREDOC_STRING_ALTERNATIVE = TokenType.VAR 656 657 # Whether string escape characters function as such when placed within raw strings 658 STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS = True 659 660 NESTED_COMMENTS = True 661 662 HINT_START = "/*+" 663 664 TOKENS_PRECEDING_HINT = {TokenType.SELECT, TokenType.INSERT, TokenType.UPDATE, TokenType.DELETE} 665 666 # Autofilled 667 _COMMENTS: t.Dict[str, str] = {} 668 _FORMAT_STRINGS: t.Dict[str, t.Tuple[str, TokenType]] = {} 669 _IDENTIFIERS: t.Dict[str, str] = {} 670 _IDENTIFIER_ESCAPES: t.Set[str] = set() 671 _QUOTES: t.Dict[str, str] = {} 672 _STRING_ESCAPES: t.Set[str] = set() 673 _KEYWORD_TRIE: t.Dict = {} 674 _RS_TOKENIZER: t.Optional[t.Any] = None 675 676 KEYWORDS: t.Dict[str, TokenType] = { 677 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, 678 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, 679 **{f"{{{{{postfix}": TokenType.BLOCK_START for postfix in ("+", "-")}, 680 **{f"{prefix}}}}}": TokenType.BLOCK_END for prefix in ("+", "-")}, 681 HINT_START: TokenType.HINT, 682 "==": TokenType.EQ, 683 "::": TokenType.DCOLON, 684 "||": TokenType.DPIPE, 685 "|>": TokenType.PIPE_GT, 686 ">=": TokenType.GTE, 687 "<=": TokenType.LTE, 688 "<>": TokenType.NEQ, 689 "!=": TokenType.NEQ, 690 ":=": TokenType.COLON_EQ, 691 "<=>": TokenType.NULLSAFE_EQ, 692 "->": TokenType.ARROW, 693 "->>": TokenType.DARROW, 694 "=>": TokenType.FARROW, 695 "#>": TokenType.HASH_ARROW, 696 "#>>": TokenType.DHASH_ARROW, 697 "<->": TokenType.LR_ARROW, 698 "&&": TokenType.DAMP, 699 "??": TokenType.DQMARK, 700 "~~~": TokenType.GLOB, 701 "~~": TokenType.LIKE, 702 "~~*": TokenType.ILIKE, 703 "~*": TokenType.IRLIKE, 704 "ALL": TokenType.ALL, 705 "ALWAYS": TokenType.ALWAYS, 706 "AND": TokenType.AND, 707 "ANTI": TokenType.ANTI, 708 "ANY": TokenType.ANY, 709 "ASC": TokenType.ASC, 710 "AS": TokenType.ALIAS, 711 "ASOF": TokenType.ASOF, 712 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, 713 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, 714 "BEGIN": TokenType.BEGIN, 715 "BETWEEN": TokenType.BETWEEN, 716 "CACHE": TokenType.CACHE, 717 "UNCACHE": TokenType.UNCACHE, 718 "CASE": TokenType.CASE, 719 "CHARACTER SET": TokenType.CHARACTER_SET, 720 "CLUSTER BY": TokenType.CLUSTER_BY, 721 "COLLATE": TokenType.COLLATE, 722 "COLUMN": TokenType.COLUMN, 723 "COMMIT": TokenType.COMMIT, 724 "CONNECT BY": TokenType.CONNECT_BY, 725 "CONSTRAINT": TokenType.CONSTRAINT, 726 "COPY": TokenType.COPY, 727 "CREATE": TokenType.CREATE, 728 "CROSS": TokenType.CROSS, 729 "CUBE": TokenType.CUBE, 730 "CURRENT_DATE": TokenType.CURRENT_DATE, 731 "CURRENT_SCHEMA": TokenType.CURRENT_SCHEMA, 732 "CURRENT_TIME": TokenType.CURRENT_TIME, 733 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, 734 "CURRENT_USER": TokenType.CURRENT_USER, 735 "DATABASE": TokenType.DATABASE, 736 "DEFAULT": TokenType.DEFAULT, 737 "DELETE": TokenType.DELETE, 738 "DESC": TokenType.DESC, 739 "DESCRIBE": TokenType.DESCRIBE, 740 "DISTINCT": TokenType.DISTINCT, 741 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, 742 "DIV": TokenType.DIV, 743 "DROP": TokenType.DROP, 744 "ELSE": TokenType.ELSE, 745 "END": TokenType.END, 746 "ENUM": TokenType.ENUM, 747 "ESCAPE": TokenType.ESCAPE, 748 "EXCEPT": TokenType.EXCEPT, 749 "EXECUTE": TokenType.EXECUTE, 750 "EXISTS": TokenType.EXISTS, 751 "FALSE": TokenType.FALSE, 752 "FETCH": TokenType.FETCH, 753 "FILTER": TokenType.FILTER, 754 "FIRST": TokenType.FIRST, 755 "FULL": TokenType.FULL, 756 "FUNCTION": TokenType.FUNCTION, 757 "FOR": TokenType.FOR, 758 "FOREIGN KEY": TokenType.FOREIGN_KEY, 759 "FORMAT": TokenType.FORMAT, 760 "FROM": TokenType.FROM, 761 "GEOGRAPHY": TokenType.GEOGRAPHY, 762 "GEOMETRY": TokenType.GEOMETRY, 763 "GLOB": TokenType.GLOB, 764 "GROUP BY": TokenType.GROUP_BY, 765 "GROUPING SETS": TokenType.GROUPING_SETS, 766 "HAVING": TokenType.HAVING, 767 "ILIKE": TokenType.ILIKE, 768 "IN": TokenType.IN, 769 "INDEX": TokenType.INDEX, 770 "INET": TokenType.INET, 771 "INNER": TokenType.INNER, 772 "INSERT": TokenType.INSERT, 773 "INTERVAL": TokenType.INTERVAL, 774 "INTERSECT": TokenType.INTERSECT, 775 "INTO": TokenType.INTO, 776 "IS": TokenType.IS, 777 "ISNULL": TokenType.ISNULL, 778 "JOIN": TokenType.JOIN, 779 "KEEP": TokenType.KEEP, 780 "KILL": TokenType.KILL, 781 "LATERAL": TokenType.LATERAL, 782 "LEFT": TokenType.LEFT, 783 "LIKE": TokenType.LIKE, 784 "LIMIT": TokenType.LIMIT, 785 "LOAD": TokenType.LOAD, 786 "LOCK": TokenType.LOCK, 787 "MERGE": TokenType.MERGE, 788 "NAMESPACE": TokenType.NAMESPACE, 789 "NATURAL": TokenType.NATURAL, 790 "NEXT": TokenType.NEXT, 791 "NOT": TokenType.NOT, 792 "NOTNULL": TokenType.NOTNULL, 793 "NULL": TokenType.NULL, 794 "OBJECT": TokenType.OBJECT, 795 "OFFSET": TokenType.OFFSET, 796 "ON": TokenType.ON, 797 "OR": TokenType.OR, 798 "XOR": TokenType.XOR, 799 "ORDER BY": TokenType.ORDER_BY, 800 "ORDINALITY": TokenType.ORDINALITY, 801 "OUTER": TokenType.OUTER, 802 "OVER": TokenType.OVER, 803 "OVERLAPS": TokenType.OVERLAPS, 804 "OVERWRITE": TokenType.OVERWRITE, 805 "PARTITION": TokenType.PARTITION, 806 "PARTITION BY": TokenType.PARTITION_BY, 807 "PARTITIONED BY": TokenType.PARTITION_BY, 808 "PARTITIONED_BY": TokenType.PARTITION_BY, 809 "PERCENT": TokenType.PERCENT, 810 "PIVOT": TokenType.PIVOT, 811 "PRAGMA": TokenType.PRAGMA, 812 "PRIMARY KEY": TokenType.PRIMARY_KEY, 813 "PROCEDURE": TokenType.PROCEDURE, 814 "QUALIFY": TokenType.QUALIFY, 815 "RANGE": TokenType.RANGE, 816 "RECURSIVE": TokenType.RECURSIVE, 817 "REGEXP": TokenType.RLIKE, 818 "RENAME": TokenType.RENAME, 819 "REPLACE": TokenType.REPLACE, 820 "RETURNING": TokenType.RETURNING, 821 "REFERENCES": TokenType.REFERENCES, 822 "RIGHT": TokenType.RIGHT, 823 "RLIKE": TokenType.RLIKE, 824 "ROLLBACK": TokenType.ROLLBACK, 825 "ROLLUP": TokenType.ROLLUP, 826 "ROW": TokenType.ROW, 827 "ROWS": TokenType.ROWS, 828 "SCHEMA": TokenType.SCHEMA, 829 "SELECT": TokenType.SELECT, 830 "SEMI": TokenType.SEMI, 831 "SET": TokenType.SET, 832 "SETTINGS": TokenType.SETTINGS, 833 "SHOW": TokenType.SHOW, 834 "SIMILAR TO": TokenType.SIMILAR_TO, 835 "SOME": TokenType.SOME, 836 "SORT BY": TokenType.SORT_BY, 837 "START WITH": TokenType.START_WITH, 838 "STRAIGHT_JOIN": TokenType.STRAIGHT_JOIN, 839 "TABLE": TokenType.TABLE, 840 "TABLESAMPLE": TokenType.TABLE_SAMPLE, 841 "TEMP": TokenType.TEMPORARY, 842 "TEMPORARY": TokenType.TEMPORARY, 843 "THEN": TokenType.THEN, 844 "TRUE": TokenType.TRUE, 845 "TRUNCATE": TokenType.TRUNCATE, 846 "UNION": TokenType.UNION, 847 "UNKNOWN": TokenType.UNKNOWN, 848 "UNNEST": TokenType.UNNEST, 849 "UNPIVOT": TokenType.UNPIVOT, 850 "UPDATE": TokenType.UPDATE, 851 "USE": TokenType.USE, 852 "USING": TokenType.USING, 853 "UUID": TokenType.UUID, 854 "VALUES": TokenType.VALUES, 855 "VIEW": TokenType.VIEW, 856 "VOLATILE": TokenType.VOLATILE, 857 "WHEN": TokenType.WHEN, 858 "WHERE": TokenType.WHERE, 859 "WINDOW": TokenType.WINDOW, 860 "WITH": TokenType.WITH, 861 "APPLY": TokenType.APPLY, 862 "ARRAY": TokenType.ARRAY, 863 "BIT": TokenType.BIT, 864 "BOOL": TokenType.BOOLEAN, 865 "BOOLEAN": TokenType.BOOLEAN, 866 "BYTE": TokenType.TINYINT, 867 "MEDIUMINT": TokenType.MEDIUMINT, 868 "INT1": TokenType.TINYINT, 869 "TINYINT": TokenType.TINYINT, 870 "INT16": TokenType.SMALLINT, 871 "SHORT": TokenType.SMALLINT, 872 "SMALLINT": TokenType.SMALLINT, 873 "HUGEINT": TokenType.INT128, 874 "UHUGEINT": TokenType.UINT128, 875 "INT2": TokenType.SMALLINT, 876 "INTEGER": TokenType.INT, 877 "INT": TokenType.INT, 878 "INT4": TokenType.INT, 879 "INT32": TokenType.INT, 880 "INT64": TokenType.BIGINT, 881 "INT128": TokenType.INT128, 882 "INT256": TokenType.INT256, 883 "LONG": TokenType.BIGINT, 884 "BIGINT": TokenType.BIGINT, 885 "INT8": TokenType.TINYINT, 886 "UINT": TokenType.UINT, 887 "UINT128": TokenType.UINT128, 888 "UINT256": TokenType.UINT256, 889 "DEC": TokenType.DECIMAL, 890 "DECIMAL": TokenType.DECIMAL, 891 "DECIMAL32": TokenType.DECIMAL32, 892 "DECIMAL64": TokenType.DECIMAL64, 893 "DECIMAL128": TokenType.DECIMAL128, 894 "DECIMAL256": TokenType.DECIMAL256, 895 "BIGDECIMAL": TokenType.BIGDECIMAL, 896 "BIGNUMERIC": TokenType.BIGDECIMAL, 897 "LIST": TokenType.LIST, 898 "MAP": TokenType.MAP, 899 "NULLABLE": TokenType.NULLABLE, 900 "NUMBER": TokenType.DECIMAL, 901 "NUMERIC": TokenType.DECIMAL, 902 "FIXED": TokenType.DECIMAL, 903 "REAL": TokenType.FLOAT, 904 "FLOAT": TokenType.FLOAT, 905 "FLOAT4": TokenType.FLOAT, 906 "FLOAT8": TokenType.DOUBLE, 907 "DOUBLE": TokenType.DOUBLE, 908 "DOUBLE PRECISION": TokenType.DOUBLE, 909 "JSON": TokenType.JSON, 910 "JSONB": TokenType.JSONB, 911 "CHAR": TokenType.CHAR, 912 "CHARACTER": TokenType.CHAR, 913 "CHAR VARYING": TokenType.VARCHAR, 914 "CHARACTER VARYING": TokenType.VARCHAR, 915 "NCHAR": TokenType.NCHAR, 916 "VARCHAR": TokenType.VARCHAR, 917 "VARCHAR2": TokenType.VARCHAR, 918 "NVARCHAR": TokenType.NVARCHAR, 919 "NVARCHAR2": TokenType.NVARCHAR, 920 "BPCHAR": TokenType.BPCHAR, 921 "STR": TokenType.TEXT, 922 "STRING": TokenType.TEXT, 923 "TEXT": TokenType.TEXT, 924 "LONGTEXT": TokenType.LONGTEXT, 925 "MEDIUMTEXT": TokenType.MEDIUMTEXT, 926 "TINYTEXT": TokenType.TINYTEXT, 927 "CLOB": TokenType.TEXT, 928 "LONGVARCHAR": TokenType.TEXT, 929 "BINARY": TokenType.BINARY, 930 "BLOB": TokenType.VARBINARY, 931 "LONGBLOB": TokenType.LONGBLOB, 932 "MEDIUMBLOB": TokenType.MEDIUMBLOB, 933 "TINYBLOB": TokenType.TINYBLOB, 934 "BYTEA": TokenType.VARBINARY, 935 "VARBINARY": TokenType.VARBINARY, 936 "TIME": TokenType.TIME, 937 "TIMETZ": TokenType.TIMETZ, 938 "TIMESTAMP": TokenType.TIMESTAMP, 939 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, 940 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, 941 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, 942 "TIMESTAMPNTZ": TokenType.TIMESTAMPNTZ, 943 "TIMESTAMP_NTZ": TokenType.TIMESTAMPNTZ, 944 "DATE": TokenType.DATE, 945 "DATETIME": TokenType.DATETIME, 946 "INT4RANGE": TokenType.INT4RANGE, 947 "INT4MULTIRANGE": TokenType.INT4MULTIRANGE, 948 "INT8RANGE": TokenType.INT8RANGE, 949 "INT8MULTIRANGE": TokenType.INT8MULTIRANGE, 950 "NUMRANGE": TokenType.NUMRANGE, 951 "NUMMULTIRANGE": TokenType.NUMMULTIRANGE, 952 "TSRANGE": TokenType.TSRANGE, 953 "TSMULTIRANGE": TokenType.TSMULTIRANGE, 954 "TSTZRANGE": TokenType.TSTZRANGE, 955 "TSTZMULTIRANGE": TokenType.TSTZMULTIRANGE, 956 "DATERANGE": TokenType.DATERANGE, 957 "DATEMULTIRANGE": TokenType.DATEMULTIRANGE, 958 "UNIQUE": TokenType.UNIQUE, 959 "VECTOR": TokenType.VECTOR, 960 "STRUCT": TokenType.STRUCT, 961 "SEQUENCE": TokenType.SEQUENCE, 962 "VARIANT": TokenType.VARIANT, 963 "ALTER": TokenType.ALTER, 964 "ANALYZE": TokenType.ANALYZE, 965 "CALL": TokenType.COMMAND, 966 "COMMENT": TokenType.COMMENT, 967 "EXPLAIN": TokenType.COMMAND, 968 "GRANT": TokenType.GRANT, 969 "OPTIMIZE": TokenType.COMMAND, 970 "PREPARE": TokenType.COMMAND, 971 "VACUUM": TokenType.COMMAND, 972 "USER-DEFINED": TokenType.USERDEFINED, 973 "FOR VERSION": TokenType.VERSION_SNAPSHOT, 974 "FOR TIMESTAMP": TokenType.TIMESTAMP_SNAPSHOT, 975 } 976 977 WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = { 978 " ": TokenType.SPACE, 979 "\t": TokenType.SPACE, 980 "\n": TokenType.BREAK, 981 "\r": TokenType.BREAK, 982 } 983 984 COMMANDS = { 985 TokenType.COMMAND, 986 TokenType.EXECUTE, 987 TokenType.FETCH, 988 TokenType.SHOW, 989 TokenType.RENAME, 990 } 991 992 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} 993 994 # Handle numeric literals like in hive (3L = BIGINT) 995 NUMERIC_LITERALS: t.Dict[str, str] = {} 996 997 COMMENTS = ["--", ("/*", "*/")] 998 999 __slots__ = ( 1000 "sql", 1001 "size", 1002 "tokens", 1003 "dialect", 1004 "use_rs_tokenizer", 1005 "_start", 1006 "_current", 1007 "_line", 1008 "_col", 1009 "_comments", 1010 "_char", 1011 "_end", 1012 "_peek", 1013 "_prev_token_line", 1014 "_rs_dialect_settings", 1015 ) 1016 1017 def __init__( 1018 self, dialect: DialectType = None, use_rs_tokenizer: t.Optional[bool] = None 1019 ) -> None: 1020 from sqlglot.dialects import Dialect 1021 1022 self.dialect = Dialect.get_or_raise(dialect) 1023 1024 # initialize `use_rs_tokenizer`, and allow it to be overwritten per Tokenizer instance 1025 self.use_rs_tokenizer = ( 1026 use_rs_tokenizer if use_rs_tokenizer is not None else USE_RS_TOKENIZER 1027 ) 1028 1029 if self.use_rs_tokenizer: 1030 self._rs_dialect_settings = RsTokenizerDialectSettings( 1031 unescaped_sequences=self.dialect.UNESCAPED_SEQUENCES, 1032 identifiers_can_start_with_digit=self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT, 1033 numbers_can_be_underscore_separated=self.dialect.NUMBERS_CAN_BE_UNDERSCORE_SEPARATED, 1034 ) 1035 1036 self.reset() 1037 1038 def reset(self) -> None: 1039 self.sql = "" 1040 self.size = 0 1041 self.tokens: t.List[Token] = [] 1042 self._start = 0 1043 self._current = 0 1044 self._line = 1 1045 self._col = 0 1046 self._comments: t.List[str] = [] 1047 1048 self._char = "" 1049 self._end = False 1050 self._peek = "" 1051 self._prev_token_line = -1 1052 1053 def tokenize(self, sql: str) -> t.List[Token]: 1054 """Returns a list of tokens corresponding to the SQL string `sql`.""" 1055 if self.use_rs_tokenizer: 1056 return self.tokenize_rs(sql) 1057 1058 self.reset() 1059 self.sql = sql 1060 self.size = len(sql) 1061 1062 try: 1063 self._scan() 1064 except Exception as e: 1065 start = max(self._current - 50, 0) 1066 end = min(self._current + 50, self.size - 1) 1067 context = self.sql[start:end] 1068 raise TokenError(f"Error tokenizing '{context}'") from e 1069 1070 return self.tokens 1071 1072 def _scan(self, until: t.Optional[t.Callable] = None) -> None: 1073 while self.size and not self._end: 1074 current = self._current 1075 1076 # Skip spaces here rather than iteratively calling advance() for performance reasons 1077 while current < self.size: 1078 char = self.sql[current] 1079 1080 if char.isspace() and (char == " " or char == "\t"): 1081 current += 1 1082 else: 1083 break 1084 1085 offset = current - self._current if current > self._current else 1 1086 1087 self._start = current 1088 self._advance(offset) 1089 1090 if not self._char.isspace(): 1091 if self._char.isdigit(): 1092 self._scan_number() 1093 elif self._char in self._IDENTIFIERS: 1094 self._scan_identifier(self._IDENTIFIERS[self._char]) 1095 else: 1096 self._scan_keywords() 1097 1098 if until and until(): 1099 break 1100 1101 if self.tokens and self._comments: 1102 self.tokens[-1].comments.extend(self._comments) 1103 1104 def _chars(self, size: int) -> str: 1105 if size == 1: 1106 return self._char 1107 1108 start = self._current - 1 1109 end = start + size 1110 1111 return self.sql[start:end] if end <= self.size else "" 1112 1113 def _advance(self, i: int = 1, alnum: bool = False) -> None: 1114 if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: 1115 # Ensures we don't count an extra line if we get a \r\n line break sequence 1116 if not (self._char == "\r" and self._peek == "\n"): 1117 self._col = i 1118 self._line += 1 1119 else: 1120 self._col += i 1121 1122 self._current += i 1123 self._end = self._current >= self.size 1124 self._char = self.sql[self._current - 1] 1125 self._peek = "" if self._end else self.sql[self._current] 1126 1127 if alnum and self._char.isalnum(): 1128 # Here we use local variables instead of attributes for better performance 1129 _col = self._col 1130 _current = self._current 1131 _end = self._end 1132 _peek = self._peek 1133 1134 while _peek.isalnum(): 1135 _col += 1 1136 _current += 1 1137 _end = _current >= self.size 1138 _peek = "" if _end else self.sql[_current] 1139 1140 self._col = _col 1141 self._current = _current 1142 self._end = _end 1143 self._peek = _peek 1144 self._char = self.sql[_current - 1] 1145 1146 @property 1147 def _text(self) -> str: 1148 return self.sql[self._start : self._current] 1149 1150 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: 1151 self._prev_token_line = self._line 1152 1153 if self._comments and token_type == TokenType.SEMICOLON and self.tokens: 1154 self.tokens[-1].comments.extend(self._comments) 1155 self._comments = [] 1156 1157 self.tokens.append( 1158 Token( 1159 token_type, 1160 text=self._text if text is None else text, 1161 line=self._line, 1162 col=self._col, 1163 start=self._start, 1164 end=self._current - 1, 1165 comments=self._comments, 1166 ) 1167 ) 1168 self._comments = [] 1169 1170 # If we have either a semicolon or a begin token before the command's token, we'll parse 1171 # whatever follows the command's token as a string 1172 if ( 1173 token_type in self.COMMANDS 1174 and self._peek != ";" 1175 and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS) 1176 ): 1177 start = self._current 1178 tokens = len(self.tokens) 1179 self._scan(lambda: self._peek == ";") 1180 self.tokens = self.tokens[:tokens] 1181 text = self.sql[start : self._current].strip() 1182 if text: 1183 self._add(TokenType.STRING, text) 1184 1185 def _scan_keywords(self) -> None: 1186 size = 0 1187 word = None 1188 chars = self._text 1189 char = chars 1190 prev_space = False 1191 skip = False 1192 trie = self._KEYWORD_TRIE 1193 single_token = char in self.SINGLE_TOKENS 1194 1195 while chars: 1196 if skip: 1197 result = TrieResult.PREFIX 1198 else: 1199 result, trie = in_trie(trie, char.upper()) 1200 1201 if result == TrieResult.FAILED: 1202 break 1203 if result == TrieResult.EXISTS: 1204 word = chars 1205 1206 end = self._current + size 1207 size += 1 1208 1209 if end < self.size: 1210 char = self.sql[end] 1211 single_token = single_token or char in self.SINGLE_TOKENS 1212 is_space = char.isspace() 1213 1214 if not is_space or not prev_space: 1215 if is_space: 1216 char = " " 1217 chars += char 1218 prev_space = is_space 1219 skip = False 1220 else: 1221 skip = True 1222 else: 1223 char = "" 1224 break 1225 1226 if word: 1227 if self._scan_string(word): 1228 return 1229 if self._scan_comment(word): 1230 return 1231 if prev_space or single_token or not char: 1232 self._advance(size - 1) 1233 word = word.upper() 1234 self._add(self.KEYWORDS[word], text=word) 1235 return 1236 1237 if self._char in self.SINGLE_TOKENS: 1238 self._add(self.SINGLE_TOKENS[self._char], text=self._char) 1239 return 1240 1241 self._scan_var() 1242 1243 def _scan_comment(self, comment_start: str) -> bool: 1244 if comment_start not in self._COMMENTS: 1245 return False 1246 1247 comment_start_line = self._line 1248 comment_start_size = len(comment_start) 1249 comment_end = self._COMMENTS[comment_start] 1250 1251 if comment_end: 1252 # Skip the comment's start delimiter 1253 self._advance(comment_start_size) 1254 1255 comment_count = 1 1256 comment_end_size = len(comment_end) 1257 1258 while not self._end: 1259 if self._chars(comment_end_size) == comment_end: 1260 comment_count -= 1 1261 if not comment_count: 1262 break 1263 1264 self._advance(alnum=True) 1265 1266 # Nested comments are allowed by some dialects, e.g. databricks, duckdb, postgres 1267 if ( 1268 self.NESTED_COMMENTS 1269 and not self._end 1270 and self._chars(comment_end_size) == comment_start 1271 ): 1272 self._advance(comment_start_size) 1273 comment_count += 1 1274 1275 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) 1276 self._advance(comment_end_size - 1) 1277 else: 1278 while not self._end and self.WHITE_SPACE.get(self._peek) is not TokenType.BREAK: 1279 self._advance(alnum=True) 1280 self._comments.append(self._text[comment_start_size:]) 1281 1282 if ( 1283 comment_start == self.HINT_START 1284 and self.tokens 1285 and self.tokens[-1].token_type in self.TOKENS_PRECEDING_HINT 1286 ): 1287 self._add(TokenType.HINT) 1288 1289 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. 1290 # Multiple consecutive comments are preserved by appending them to the current comments list. 1291 if comment_start_line == self._prev_token_line: 1292 self.tokens[-1].comments.extend(self._comments) 1293 self._comments = [] 1294 self._prev_token_line = self._line 1295 1296 return True 1297 1298 def _scan_number(self) -> None: 1299 if self._char == "0": 1300 peek = self._peek.upper() 1301 if peek == "B": 1302 return self._scan_bits() if self.BIT_STRINGS else self._add(TokenType.NUMBER) 1303 elif peek == "X": 1304 return self._scan_hex() if self.HEX_STRINGS else self._add(TokenType.NUMBER) 1305 1306 decimal = False 1307 scientific = 0 1308 1309 while True: 1310 if self._peek.isdigit(): 1311 self._advance() 1312 elif self._peek == "." and not decimal: 1313 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER: 1314 return self._add(TokenType.NUMBER) 1315 decimal = True 1316 self._advance() 1317 elif self._peek in ("-", "+") and scientific == 1: 1318 scientific += 1 1319 self._advance() 1320 elif self._peek.upper() == "E" and not scientific: 1321 scientific += 1 1322 self._advance() 1323 elif self._peek.isidentifier(): 1324 number_text = self._text 1325 literal = "" 1326 1327 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: 1328 literal += self._peek 1329 self._advance() 1330 1331 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal.upper(), "")) 1332 1333 if token_type: 1334 self._add(TokenType.NUMBER, number_text) 1335 self._add(TokenType.DCOLON, "::") 1336 return self._add(token_type, literal) 1337 else: 1338 replaced = literal.replace("_", "") 1339 if self.dialect.NUMBERS_CAN_BE_UNDERSCORE_SEPARATED and replaced.isdigit(): 1340 return self._add(TokenType.NUMBER, number_text + replaced) 1341 if self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT: 1342 return self._add(TokenType.VAR) 1343 1344 self._advance(-len(literal)) 1345 return self._add(TokenType.NUMBER, number_text) 1346 else: 1347 return self._add(TokenType.NUMBER) 1348 1349 def _scan_bits(self) -> None: 1350 self._advance() 1351 value = self._extract_value() 1352 try: 1353 # If `value` can't be converted to a binary, fallback to tokenizing it as an identifier 1354 int(value, 2) 1355 self._add(TokenType.BIT_STRING, value[2:]) # Drop the 0b 1356 except ValueError: 1357 self._add(TokenType.IDENTIFIER) 1358 1359 def _scan_hex(self) -> None: 1360 self._advance() 1361 value = self._extract_value() 1362 try: 1363 # If `value` can't be converted to a hex, fallback to tokenizing it as an identifier 1364 int(value, 16) 1365 self._add(TokenType.HEX_STRING, value[2:]) # Drop the 0x 1366 except ValueError: 1367 self._add(TokenType.IDENTIFIER) 1368 1369 def _extract_value(self) -> str: 1370 while True: 1371 char = self._peek.strip() 1372 if char and char not in self.SINGLE_TOKENS: 1373 self._advance(alnum=True) 1374 else: 1375 break 1376 1377 return self._text 1378 1379 def _scan_string(self, start: str) -> bool: 1380 base = None 1381 token_type = TokenType.STRING 1382 1383 if start in self._QUOTES: 1384 end = self._QUOTES[start] 1385 elif start in self._FORMAT_STRINGS: 1386 end, token_type = self._FORMAT_STRINGS[start] 1387 1388 if token_type == TokenType.HEX_STRING: 1389 base = 16 1390 elif token_type == TokenType.BIT_STRING: 1391 base = 2 1392 elif token_type == TokenType.HEREDOC_STRING: 1393 self._advance() 1394 1395 if self._char == end: 1396 tag = "" 1397 else: 1398 tag = self._extract_string( 1399 end, 1400 raw_string=True, 1401 raise_unmatched=not self.HEREDOC_TAG_IS_IDENTIFIER, 1402 ) 1403 1404 if tag and self.HEREDOC_TAG_IS_IDENTIFIER and (self._end or not tag.isidentifier()): 1405 if not self._end: 1406 self._advance(-1) 1407 1408 self._advance(-len(tag)) 1409 self._add(self.HEREDOC_STRING_ALTERNATIVE) 1410 return True 1411 1412 end = f"{start}{tag}{end}" 1413 else: 1414 return False 1415 1416 self._advance(len(start)) 1417 text = self._extract_string(end, raw_string=token_type == TokenType.RAW_STRING) 1418 1419 if base: 1420 try: 1421 int(text, base) 1422 except Exception: 1423 raise TokenError( 1424 f"Numeric string contains invalid characters from {self._line}:{self._start}" 1425 ) 1426 1427 self._add(token_type, text) 1428 return True 1429 1430 def _scan_identifier(self, identifier_end: str) -> None: 1431 self._advance() 1432 text = self._extract_string( 1433 identifier_end, escapes=self._IDENTIFIER_ESCAPES | {identifier_end} 1434 ) 1435 self._add(TokenType.IDENTIFIER, text) 1436 1437 def _scan_var(self) -> None: 1438 while True: 1439 char = self._peek.strip() 1440 if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): 1441 self._advance(alnum=True) 1442 else: 1443 break 1444 1445 self._add( 1446 TokenType.VAR 1447 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER 1448 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) 1449 ) 1450 1451 def _extract_string( 1452 self, 1453 delimiter: str, 1454 escapes: t.Optional[t.Set[str]] = None, 1455 raw_string: bool = False, 1456 raise_unmatched: bool = True, 1457 ) -> str: 1458 text = "" 1459 delim_size = len(delimiter) 1460 escapes = self._STRING_ESCAPES if escapes is None else escapes 1461 1462 while True: 1463 if ( 1464 not raw_string 1465 and self.dialect.UNESCAPED_SEQUENCES 1466 and self._peek 1467 and self._char in self.STRING_ESCAPES 1468 ): 1469 unescaped_sequence = self.dialect.UNESCAPED_SEQUENCES.get(self._char + self._peek) 1470 if unescaped_sequence: 1471 self._advance(2) 1472 text += unescaped_sequence 1473 continue 1474 if ( 1475 (self.STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS or not raw_string) 1476 and self._char in escapes 1477 and (self._peek == delimiter or self._peek in escapes) 1478 and (self._char not in self._QUOTES or self._char == self._peek) 1479 ): 1480 if self._peek == delimiter: 1481 text += self._peek 1482 else: 1483 text += self._char + self._peek 1484 1485 if self._current + 1 < self.size: 1486 self._advance(2) 1487 else: 1488 raise TokenError(f"Missing {delimiter} from {self._line}:{self._current}") 1489 else: 1490 if self._chars(delim_size) == delimiter: 1491 if delim_size > 1: 1492 self._advance(delim_size - 1) 1493 break 1494 1495 if self._end: 1496 if not raise_unmatched: 1497 return text + self._char 1498 1499 raise TokenError(f"Missing {delimiter} from {self._line}:{self._start}") 1500 1501 current = self._current - 1 1502 self._advance(alnum=True) 1503 text += self.sql[current : self._current - 1] 1504 1505 return text 1506 1507 def tokenize_rs(self, sql: str) -> t.List[Token]: 1508 if not self._RS_TOKENIZER: 1509 raise SqlglotError("Rust tokenizer is not available") 1510 1511 tokens, error_msg = self._RS_TOKENIZER.tokenize(sql, self._rs_dialect_settings) 1512 for token in tokens: 1513 token.token_type = _ALL_TOKEN_TYPES[token.token_type_index] 1514 1515 # Setting this here so partial token lists can be inspected even if there is a failure 1516 self.tokens = tokens 1517 1518 if error_msg is not None: 1519 raise TokenError(error_msg) 1520 1521 return tokens
Tokenizer( dialect: Union[str, sqlglot.dialects.Dialect, Type[sqlglot.dialects.Dialect], NoneType] = None, use_rs_tokenizer: Optional[bool] = None)
1017 def __init__( 1018 self, dialect: DialectType = None, use_rs_tokenizer: t.Optional[bool] = None 1019 ) -> None: 1020 from sqlglot.dialects import Dialect 1021 1022 self.dialect = Dialect.get_or_raise(dialect) 1023 1024 # initialize `use_rs_tokenizer`, and allow it to be overwritten per Tokenizer instance 1025 self.use_rs_tokenizer = ( 1026 use_rs_tokenizer if use_rs_tokenizer is not None else USE_RS_TOKENIZER 1027 ) 1028 1029 if self.use_rs_tokenizer: 1030 self._rs_dialect_settings = RsTokenizerDialectSettings( 1031 unescaped_sequences=self.dialect.UNESCAPED_SEQUENCES, 1032 identifiers_can_start_with_digit=self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT, 1033 numbers_can_be_underscore_separated=self.dialect.NUMBERS_CAN_BE_UNDERSCORE_SEPARATED, 1034 ) 1035 1036 self.reset()
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.HASH: 'HASH'>, "'": <TokenType.UNKNOWN: 'UNKNOWN'>, '`': <TokenType.UNKNOWN: 'UNKNOWN'>, '"': <TokenType.UNKNOWN: 'UNKNOWN'>}
HEREDOC_STRING_ALTERNATIVE =
<TokenType.VAR: 'VAR'>
TOKENS_PRECEDING_HINT =
{<TokenType.SELECT: 'SELECT'>, <TokenType.INSERT: 'INSERT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.DELETE: 'DELETE'>}
KEYWORDS: Dict[str, TokenType] =
{'{%': <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.PIPE_GT: 'PIPE_GT'>, '>=': <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'>, '~~~': <TokenType.GLOB: 'GLOB'>, '~~': <TokenType.LIKE: 'LIKE'>, '~~*': <TokenType.ILIKE: 'ILIKE'>, '~*': <TokenType.IRLIKE: 'IRLIKE'>, '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'>, 'COPY': <TokenType.COPY: 'COPY'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_SCHEMA': <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, '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'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, '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'>, 'NAMESPACE': <TokenType.NAMESPACE: 'NAMESPACE'>, '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'>, 'RENAME': <TokenType.RENAME: 'RENAME'>, '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'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, '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'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, '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'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'UHUGEINT': <TokenType.UINT128: 'UINT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'INT256': <TokenType.INT256: 'INT256'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'UINT128': <TokenType.UINT128: 'UINT128'>, 'UINT256': <TokenType.UINT256: 'UINT256'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL32': <TokenType.DECIMAL32: 'DECIMAL32'>, 'DECIMAL64': <TokenType.DECIMAL64: 'DECIMAL64'>, 'DECIMAL128': <TokenType.DECIMAL128: 'DECIMAL128'>, 'DECIMAL256': <TokenType.DECIMAL256: 'DECIMAL256'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, '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'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'CHAR VARYING': <TokenType.VARCHAR: 'VARCHAR'>, 'CHARACTER VARYING': <TokenType.VARCHAR: 'VARCHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, '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.BINARY: 'BINARY'>, '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'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, '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'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.ANALYZE: 'ANALYZE'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.GRANT: 'GRANT'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <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'>}
WHITE_SPACE: Dict[Optional[str], TokenType] =
{' ': <TokenType.SPACE: 'SPACE'>, '\t': <TokenType.SPACE: 'SPACE'>, '\n': <TokenType.BREAK: 'BREAK'>, '\r': <TokenType.BREAK: 'BREAK'>}
COMMANDS =
{<TokenType.EXECUTE: 'EXECUTE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.RENAME: 'RENAME'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.FETCH: 'FETCH'>}
COMMAND_PREFIX_TOKENS =
{<TokenType.SEMICOLON: 'SEMICOLON'>, <TokenType.BEGIN: 'BEGIN'>}
def
reset(self) -> None:
1038 def reset(self) -> None: 1039 self.sql = "" 1040 self.size = 0 1041 self.tokens: t.List[Token] = [] 1042 self._start = 0 1043 self._current = 0 1044 self._line = 1 1045 self._col = 0 1046 self._comments: t.List[str] = [] 1047 1048 self._char = "" 1049 self._end = False 1050 self._peek = "" 1051 self._prev_token_line = -1
1053 def tokenize(self, sql: str) -> t.List[Token]: 1054 """Returns a list of tokens corresponding to the SQL string `sql`.""" 1055 if self.use_rs_tokenizer: 1056 return self.tokenize_rs(sql) 1057 1058 self.reset() 1059 self.sql = sql 1060 self.size = len(sql) 1061 1062 try: 1063 self._scan() 1064 except Exception as e: 1065 start = max(self._current - 50, 0) 1066 end = min(self._current + 50, self.size - 1) 1067 context = self.sql[start:end] 1068 raise TokenError(f"Error tokenizing '{context}'") from e 1069 1070 return self.tokens
Returns a list of tokens corresponding to the SQL string sql
.
1507 def tokenize_rs(self, sql: str) -> t.List[Token]: 1508 if not self._RS_TOKENIZER: 1509 raise SqlglotError("Rust tokenizer is not available") 1510 1511 tokens, error_msg = self._RS_TOKENIZER.tokenize(sql, self._rs_dialect_settings) 1512 for token in tokens: 1513 token.token_type = _ALL_TOKEN_TYPES[token.token_type_index] 1514 1515 # Setting this here so partial token lists can be inspected even if there is a failure 1516 self.tokens = tokens 1517 1518 if error_msg is not None: 1519 raise TokenError(error_msg) 1520 1521 return tokens