sqlglot.dialects.tsql
1from __future__ import annotations 2 3import re 4import typing as t 5 6from sqlglot import exp, generator, parser, tokens, transforms 7from sqlglot.dialects.dialect import ( 8 Dialect, 9 max_or_greatest, 10 min_or_least, 11 parse_date_delta, 12 rename_func, 13) 14from sqlglot.expressions import DataType 15from sqlglot.helper import seq_get 16from sqlglot.time import format_time 17from sqlglot.tokens import TokenType 18 19if t.TYPE_CHECKING: 20 from sqlglot._typing import E 21 22FULL_FORMAT_TIME_MAPPING = { 23 "weekday": "%A", 24 "dw": "%A", 25 "w": "%A", 26 "month": "%B", 27 "mm": "%B", 28 "m": "%B", 29} 30 31DATE_DELTA_INTERVAL = { 32 "year": "year", 33 "yyyy": "year", 34 "yy": "year", 35 "quarter": "quarter", 36 "qq": "quarter", 37 "q": "quarter", 38 "month": "month", 39 "mm": "month", 40 "m": "month", 41 "week": "week", 42 "ww": "week", 43 "wk": "week", 44 "day": "day", 45 "dd": "day", 46 "d": "day", 47} 48 49 50DATE_FMT_RE = re.compile("([dD]{1,2})|([mM]{1,2})|([yY]{1,4})|([hH]{1,2})|([sS]{1,2})") 51 52# N = Numeric, C=Currency 53TRANSPILE_SAFE_NUMBER_FMT = {"N", "C"} 54 55 56def _format_time_lambda( 57 exp_class: t.Type[E], full_format_mapping: t.Optional[bool] = None 58) -> t.Callable[[t.List], E]: 59 def _format_time(args: t.List) -> E: 60 assert len(args) == 2 61 62 return exp_class( 63 this=exp.cast(args[1], "datetime"), 64 format=exp.Literal.string( 65 format_time( 66 args[0].name.lower(), 67 {**TSQL.TIME_MAPPING, **FULL_FORMAT_TIME_MAPPING} 68 if full_format_mapping 69 else TSQL.TIME_MAPPING, 70 ) 71 ), 72 ) 73 74 return _format_time 75 76 77def _parse_format(args: t.List) -> exp.Expression: 78 assert len(args) == 2 79 80 fmt = args[1] 81 number_fmt = fmt.name in TRANSPILE_SAFE_NUMBER_FMT or not DATE_FMT_RE.search(fmt.name) 82 83 if number_fmt: 84 return exp.NumberToStr(this=args[0], format=fmt) 85 86 return exp.TimeToStr( 87 this=args[0], 88 format=exp.Literal.string( 89 format_time(fmt.name, TSQL.FORMAT_TIME_MAPPING) 90 if len(fmt.name) == 1 91 else format_time(fmt.name, TSQL.TIME_MAPPING) 92 ), 93 ) 94 95 96def _parse_eomonth(args: t.List) -> exp.Expression: 97 date = seq_get(args, 0) 98 month_lag = seq_get(args, 1) 99 unit = DATE_DELTA_INTERVAL.get("month") 100 101 if month_lag is None: 102 return exp.LastDateOfMonth(this=date) 103 104 # Remove month lag argument in parser as its compared with the number of arguments of the resulting class 105 args.remove(month_lag) 106 107 return exp.LastDateOfMonth(this=exp.DateAdd(this=date, expression=month_lag, unit=unit)) 108 109 110def _parse_hashbytes(args: t.List) -> exp.Expression: 111 kind, data = args 112 kind = kind.name.upper() if kind.is_string else "" 113 114 if kind == "MD5": 115 args.pop(0) 116 return exp.MD5(this=data) 117 if kind in ("SHA", "SHA1"): 118 args.pop(0) 119 return exp.SHA(this=data) 120 if kind == "SHA2_256": 121 return exp.SHA2(this=data, length=exp.Literal.number(256)) 122 if kind == "SHA2_512": 123 return exp.SHA2(this=data, length=exp.Literal.number(512)) 124 125 return exp.func("HASHBYTES", *args) 126 127 128def generate_date_delta_with_unit_sql( 129 self: generator.Generator, expression: exp.DateAdd | exp.DateDiff 130) -> str: 131 func = "DATEADD" if isinstance(expression, exp.DateAdd) else "DATEDIFF" 132 return self.func(func, expression.text("unit"), expression.expression, expression.this) 133 134 135def _format_sql(self: generator.Generator, expression: exp.NumberToStr | exp.TimeToStr) -> str: 136 fmt = ( 137 expression.args["format"] 138 if isinstance(expression, exp.NumberToStr) 139 else exp.Literal.string( 140 format_time( 141 expression.text("format"), 142 t.cast(t.Dict[str, str], TSQL.INVERSE_TIME_MAPPING), 143 ) 144 ) 145 ) 146 return self.func("FORMAT", expression.this, fmt) 147 148 149def _string_agg_sql(self: generator.Generator, expression: exp.GroupConcat) -> str: 150 expression = expression.copy() 151 152 this = expression.this 153 distinct = expression.find(exp.Distinct) 154 if distinct: 155 # exp.Distinct can appear below an exp.Order or an exp.GroupConcat expression 156 self.unsupported("T-SQL STRING_AGG doesn't support DISTINCT.") 157 this = distinct.pop().expressions[0] 158 159 order = "" 160 if isinstance(expression.this, exp.Order): 161 if expression.this.this: 162 this = expression.this.this.pop() 163 order = f" WITHIN GROUP ({self.sql(expression.this)[1:]})" # Order has a leading space 164 165 separator = expression.args.get("separator") or exp.Literal.string(",") 166 return f"STRING_AGG({self.format_args(this, separator)}){order}" 167 168 169class TSQL(Dialect): 170 RESOLVES_IDENTIFIERS_AS_UPPERCASE = None 171 NULL_ORDERING = "nulls_are_small" 172 TIME_FORMAT = "'yyyy-mm-dd hh:mm:ss'" 173 174 TIME_MAPPING = { 175 "year": "%Y", 176 "qq": "%q", 177 "q": "%q", 178 "quarter": "%q", 179 "dayofyear": "%j", 180 "day": "%d", 181 "dy": "%d", 182 "y": "%Y", 183 "week": "%W", 184 "ww": "%W", 185 "wk": "%W", 186 "hour": "%h", 187 "hh": "%I", 188 "minute": "%M", 189 "mi": "%M", 190 "n": "%M", 191 "second": "%S", 192 "ss": "%S", 193 "s": "%-S", 194 "millisecond": "%f", 195 "ms": "%f", 196 "weekday": "%W", 197 "dw": "%W", 198 "month": "%m", 199 "mm": "%M", 200 "m": "%-M", 201 "Y": "%Y", 202 "YYYY": "%Y", 203 "YY": "%y", 204 "MMMM": "%B", 205 "MMM": "%b", 206 "MM": "%m", 207 "M": "%-m", 208 "dd": "%d", 209 "d": "%-d", 210 "HH": "%H", 211 "H": "%-H", 212 "h": "%-I", 213 "S": "%f", 214 "yyyy": "%Y", 215 "yy": "%y", 216 } 217 218 CONVERT_FORMAT_MAPPING = { 219 "0": "%b %d %Y %-I:%M%p", 220 "1": "%m/%d/%y", 221 "2": "%y.%m.%d", 222 "3": "%d/%m/%y", 223 "4": "%d.%m.%y", 224 "5": "%d-%m-%y", 225 "6": "%d %b %y", 226 "7": "%b %d, %y", 227 "8": "%H:%M:%S", 228 "9": "%b %d %Y %-I:%M:%S:%f%p", 229 "10": "mm-dd-yy", 230 "11": "yy/mm/dd", 231 "12": "yymmdd", 232 "13": "%d %b %Y %H:%M:ss:%f", 233 "14": "%H:%M:%S:%f", 234 "20": "%Y-%m-%d %H:%M:%S", 235 "21": "%Y-%m-%d %H:%M:%S.%f", 236 "22": "%m/%d/%y %-I:%M:%S %p", 237 "23": "%Y-%m-%d", 238 "24": "%H:%M:%S", 239 "25": "%Y-%m-%d %H:%M:%S.%f", 240 "100": "%b %d %Y %-I:%M%p", 241 "101": "%m/%d/%Y", 242 "102": "%Y.%m.%d", 243 "103": "%d/%m/%Y", 244 "104": "%d.%m.%Y", 245 "105": "%d-%m-%Y", 246 "106": "%d %b %Y", 247 "107": "%b %d, %Y", 248 "108": "%H:%M:%S", 249 "109": "%b %d %Y %-I:%M:%S:%f%p", 250 "110": "%m-%d-%Y", 251 "111": "%Y/%m/%d", 252 "112": "%Y%m%d", 253 "113": "%d %b %Y %H:%M:%S:%f", 254 "114": "%H:%M:%S:%f", 255 "120": "%Y-%m-%d %H:%M:%S", 256 "121": "%Y-%m-%d %H:%M:%S.%f", 257 } 258 259 FORMAT_TIME_MAPPING = { 260 "y": "%B %Y", 261 "d": "%m/%d/%Y", 262 "H": "%-H", 263 "h": "%-I", 264 "s": "%Y-%m-%d %H:%M:%S", 265 "D": "%A,%B,%Y", 266 "f": "%A,%B,%Y %-I:%M %p", 267 "F": "%A,%B,%Y %-I:%M:%S %p", 268 "g": "%m/%d/%Y %-I:%M %p", 269 "G": "%m/%d/%Y %-I:%M:%S %p", 270 "M": "%B %-d", 271 "m": "%B %-d", 272 "O": "%Y-%m-%dT%H:%M:%S", 273 "u": "%Y-%M-%D %H:%M:%S%z", 274 "U": "%A, %B %D, %Y %H:%M:%S%z", 275 "T": "%-I:%M:%S %p", 276 "t": "%-I:%M", 277 "Y": "%a %Y", 278 } 279 280 class Tokenizer(tokens.Tokenizer): 281 IDENTIFIERS = ['"', ("[", "]")] 282 QUOTES = ["'", '"'] 283 HEX_STRINGS = [("0x", ""), ("0X", "")] 284 285 KEYWORDS = { 286 **tokens.Tokenizer.KEYWORDS, 287 "DATETIME2": TokenType.DATETIME, 288 "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, 289 "DECLARE": TokenType.COMMAND, 290 "IMAGE": TokenType.IMAGE, 291 "MONEY": TokenType.MONEY, 292 "NTEXT": TokenType.TEXT, 293 "NVARCHAR(MAX)": TokenType.TEXT, 294 "PRINT": TokenType.COMMAND, 295 "PROC": TokenType.PROCEDURE, 296 "REAL": TokenType.FLOAT, 297 "ROWVERSION": TokenType.ROWVERSION, 298 "SMALLDATETIME": TokenType.DATETIME, 299 "SMALLMONEY": TokenType.SMALLMONEY, 300 "SQL_VARIANT": TokenType.VARIANT, 301 "TIME": TokenType.TIMESTAMP, 302 "TOP": TokenType.TOP, 303 "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER, 304 "VARCHAR(MAX)": TokenType.TEXT, 305 "XML": TokenType.XML, 306 "OUTPUT": TokenType.RETURNING, 307 "SYSTEM_USER": TokenType.CURRENT_USER, 308 } 309 310 # TSQL allows @, # to appear as a variable/identifier prefix 311 SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy() 312 SINGLE_TOKENS.pop("#") 313 314 class Parser(parser.Parser): 315 FUNCTIONS = { 316 **parser.Parser.FUNCTIONS, 317 "CHARINDEX": lambda args: exp.StrPosition( 318 this=seq_get(args, 1), 319 substr=seq_get(args, 0), 320 position=seq_get(args, 2), 321 ), 322 "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), 323 "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), 324 "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), 325 "DATEPART": _format_time_lambda(exp.TimeToStr), 326 "EOMONTH": _parse_eomonth, 327 "FORMAT": _parse_format, 328 "GETDATE": exp.CurrentTimestamp.from_arg_list, 329 "HASHBYTES": _parse_hashbytes, 330 "IIF": exp.If.from_arg_list, 331 "ISNULL": exp.Coalesce.from_arg_list, 332 "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, 333 "LEN": exp.Length.from_arg_list, 334 "REPLICATE": exp.Repeat.from_arg_list, 335 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), 336 "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, 337 "SUSER_NAME": exp.CurrentUser.from_arg_list, 338 "SUSER_SNAME": exp.CurrentUser.from_arg_list, 339 "SYSTEM_USER": exp.CurrentUser.from_arg_list, 340 } 341 342 JOIN_HINTS = { 343 "LOOP", 344 "HASH", 345 "MERGE", 346 "REMOTE", 347 } 348 349 VAR_LENGTH_DATATYPES = { 350 DataType.Type.NVARCHAR, 351 DataType.Type.VARCHAR, 352 DataType.Type.CHAR, 353 DataType.Type.NCHAR, 354 } 355 356 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { 357 TokenType.TABLE, 358 *parser.Parser.TYPE_TOKENS, 359 } 360 361 STATEMENT_PARSERS = { 362 **parser.Parser.STATEMENT_PARSERS, 363 TokenType.END: lambda self: self._parse_command(), 364 } 365 366 LOG_BASE_FIRST = False 367 LOG_DEFAULTS_TO_LN = True 368 369 CONCAT_NULL_OUTPUTS_STRING = True 370 371 def _parse_commit_or_rollback(self) -> exp.Commit | exp.Rollback: 372 """Applies to SQL Server and Azure SQL Database 373 COMMIT [ { TRAN | TRANSACTION } 374 [ transaction_name | @tran_name_variable ] ] 375 [ WITH ( DELAYED_DURABILITY = { OFF | ON } ) ] 376 377 ROLLBACK { TRAN | TRANSACTION } 378 [ transaction_name | @tran_name_variable 379 | savepoint_name | @savepoint_variable ] 380 """ 381 rollback = self._prev.token_type == TokenType.ROLLBACK 382 383 self._match_texts({"TRAN", "TRANSACTION"}) 384 this = self._parse_id_var() 385 386 if rollback: 387 return self.expression(exp.Rollback, this=this) 388 389 durability = None 390 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): 391 self._match_text_seq("DELAYED_DURABILITY") 392 self._match(TokenType.EQ) 393 394 if self._match_text_seq("OFF"): 395 durability = False 396 else: 397 self._match(TokenType.ON) 398 durability = True 399 400 self._match_r_paren() 401 402 return self.expression(exp.Commit, this=this, durability=durability) 403 404 def _parse_transaction(self) -> exp.Transaction | exp.Command: 405 """Applies to SQL Server and Azure SQL Database 406 BEGIN { TRAN | TRANSACTION } 407 [ { transaction_name | @tran_name_variable } 408 [ WITH MARK [ 'description' ] ] 409 ] 410 """ 411 if self._match_texts(("TRAN", "TRANSACTION")): 412 transaction = self.expression(exp.Transaction, this=self._parse_id_var()) 413 if self._match_text_seq("WITH", "MARK"): 414 transaction.set("mark", self._parse_string()) 415 416 return transaction 417 418 return self._parse_as_command(self._prev) 419 420 def _parse_system_time(self) -> t.Optional[exp.Expression]: 421 if not self._match_text_seq("FOR", "SYSTEM_TIME"): 422 return None 423 424 if self._match_text_seq("AS", "OF"): 425 system_time = self.expression( 426 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" 427 ) 428 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): 429 kind = self._prev.text 430 this = self._parse_bitwise() 431 self._match_texts(("TO", "AND")) 432 expression = self._parse_bitwise() 433 system_time = self.expression( 434 exp.SystemTime, this=this, expression=expression, kind=kind 435 ) 436 elif self._match_text_seq("CONTAINED", "IN"): 437 args = self._parse_wrapped_csv(self._parse_bitwise) 438 system_time = self.expression( 439 exp.SystemTime, 440 this=seq_get(args, 0), 441 expression=seq_get(args, 1), 442 kind="CONTAINED IN", 443 ) 444 elif self._match(TokenType.ALL): 445 system_time = self.expression(exp.SystemTime, kind="ALL") 446 else: 447 system_time = None 448 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") 449 450 return system_time 451 452 def _parse_table_parts(self, schema: bool = False) -> exp.Table: 453 table = super()._parse_table_parts(schema=schema) 454 table.set("system_time", self._parse_system_time()) 455 return table 456 457 def _parse_returns(self) -> exp.ReturnsProperty: 458 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) 459 returns = super()._parse_returns() 460 returns.set("table", table) 461 return returns 462 463 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: 464 to = self._parse_types() 465 self._match(TokenType.COMMA) 466 this = self._parse_conjunction() 467 468 if not to or not this: 469 return None 470 471 # Retrieve length of datatype and override to default if not specified 472 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: 473 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) 474 475 # Check whether a conversion with format is applicable 476 if self._match(TokenType.COMMA): 477 format_val = self._parse_number() 478 format_val_name = format_val.name if format_val else "" 479 480 if format_val_name not in TSQL.CONVERT_FORMAT_MAPPING: 481 raise ValueError( 482 f"CONVERT function at T-SQL does not support format style {format_val_name}" 483 ) 484 485 format_norm = exp.Literal.string(TSQL.CONVERT_FORMAT_MAPPING[format_val_name]) 486 487 # Check whether the convert entails a string to date format 488 if to.this == DataType.Type.DATE: 489 return self.expression(exp.StrToDate, this=this, format=format_norm) 490 # Check whether the convert entails a string to datetime format 491 elif to.this == DataType.Type.DATETIME: 492 return self.expression(exp.StrToTime, this=this, format=format_norm) 493 # Check whether the convert entails a date to string format 494 elif to.this in self.VAR_LENGTH_DATATYPES: 495 return self.expression( 496 exp.Cast if strict else exp.TryCast, 497 to=to, 498 this=self.expression(exp.TimeToStr, this=this, format=format_norm), 499 ) 500 elif to.this == DataType.Type.TEXT: 501 return self.expression(exp.TimeToStr, this=this, format=format_norm) 502 503 # Entails a simple cast without any format requirement 504 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 505 506 def _parse_user_defined_function( 507 self, kind: t.Optional[TokenType] = None 508 ) -> t.Optional[exp.Expression]: 509 this = super()._parse_user_defined_function(kind=kind) 510 511 if ( 512 kind == TokenType.FUNCTION 513 or isinstance(this, exp.UserDefinedFunction) 514 or self._match(TokenType.ALIAS, advance=False) 515 ): 516 return this 517 518 expressions = self._parse_csv(self._parse_function_parameter) 519 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) 520 521 class Generator(generator.Generator): 522 LOCKING_READS_SUPPORTED = True 523 LIMIT_IS_TOP = True 524 QUERY_HINTS = False 525 RETURNING_END = False 526 527 TYPE_MAPPING = { 528 **generator.Generator.TYPE_MAPPING, 529 exp.DataType.Type.INT: "INTEGER", 530 exp.DataType.Type.DECIMAL: "NUMERIC", 531 exp.DataType.Type.DATETIME: "DATETIME2", 532 exp.DataType.Type.VARIANT: "SQL_VARIANT", 533 } 534 535 TRANSFORMS = { 536 **generator.Generator.TRANSFORMS, 537 exp.DateAdd: generate_date_delta_with_unit_sql, 538 exp.DateDiff: generate_date_delta_with_unit_sql, 539 exp.CurrentDate: rename_func("GETDATE"), 540 exp.CurrentTimestamp: rename_func("GETDATE"), 541 exp.Extract: rename_func("DATEPART"), 542 exp.GroupConcat: _string_agg_sql, 543 exp.If: rename_func("IIF"), 544 exp.Max: max_or_greatest, 545 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), 546 exp.Min: min_or_least, 547 exp.NumberToStr: _format_sql, 548 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 549 exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), 550 exp.SHA2: lambda self, e: self.func( 551 "HASHBYTES", 552 exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), 553 e.this, 554 ), 555 exp.TimeToStr: _format_sql, 556 } 557 558 TRANSFORMS.pop(exp.ReturnsProperty) 559 560 PROPERTIES_LOCATION = { 561 **generator.Generator.PROPERTIES_LOCATION, 562 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 563 } 564 565 LIMIT_FETCH = "FETCH" 566 567 def offset_sql(self, expression: exp.Offset) -> str: 568 return f"{super().offset_sql(expression)} ROWS" 569 570 def systemtime_sql(self, expression: exp.SystemTime) -> str: 571 kind = expression.args["kind"] 572 if kind == "ALL": 573 return "FOR SYSTEM_TIME ALL" 574 575 start = self.sql(expression, "this") 576 if kind == "AS OF": 577 return f"FOR SYSTEM_TIME AS OF {start}" 578 579 end = self.sql(expression, "expression") 580 if kind == "FROM": 581 return f"FOR SYSTEM_TIME FROM {start} TO {end}" 582 if kind == "BETWEEN": 583 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" 584 585 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" 586 587 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: 588 table = expression.args.get("table") 589 table = f"{table} " if table else "" 590 return f"RETURNS {table}{self.sql(expression, 'this')}" 591 592 def returning_sql(self, expression: exp.Returning) -> str: 593 into = self.sql(expression, "into") 594 into = self.seg(f"INTO {into}") if into else "" 595 return f"{self.seg('OUTPUT')} {self.expressions(expression, flat=True)}{into}" 596 597 def transaction_sql(self, expression: exp.Transaction) -> str: 598 this = self.sql(expression, "this") 599 this = f" {this}" if this else "" 600 mark = self.sql(expression, "mark") 601 mark = f" WITH MARK {mark}" if mark else "" 602 return f"BEGIN TRANSACTION{this}{mark}" 603 604 def commit_sql(self, expression: exp.Commit) -> str: 605 this = self.sql(expression, "this") 606 this = f" {this}" if this else "" 607 durability = expression.args.get("durability") 608 durability = ( 609 f" WITH (DELAYED_DURABILITY = {'ON' if durability else 'OFF'})" 610 if durability is not None 611 else "" 612 ) 613 return f"COMMIT TRANSACTION{this}{durability}" 614 615 def rollback_sql(self, expression: exp.Rollback) -> str: 616 this = self.sql(expression, "this") 617 this = f" {this}" if this else "" 618 return f"ROLLBACK TRANSACTION{this}"
FULL_FORMAT_TIME_MAPPING =
{'weekday': '%A', 'dw': '%A', 'w': '%A', 'month': '%B', 'mm': '%B', 'm': '%B'}
DATE_DELTA_INTERVAL =
{'year': 'year', 'yyyy': 'year', 'yy': 'year', 'quarter': 'quarter', 'qq': 'quarter', 'q': 'quarter', 'month': 'month', 'mm': 'month', 'm': 'month', 'week': 'week', 'ww': 'week', 'wk': 'week', 'day': 'day', 'dd': 'day', 'd': 'day'}
DATE_FMT_RE =
re.compile('([dD]{1,2})|([mM]{1,2})|([yY]{1,4})|([hH]{1,2})|([sS]{1,2})')
TRANSPILE_SAFE_NUMBER_FMT =
{'C', 'N'}
def
generate_date_delta_with_unit_sql( self: sqlglot.generator.Generator, expression: sqlglot.expressions.DateAdd | sqlglot.expressions.DateDiff) -> str:
170class TSQL(Dialect): 171 RESOLVES_IDENTIFIERS_AS_UPPERCASE = None 172 NULL_ORDERING = "nulls_are_small" 173 TIME_FORMAT = "'yyyy-mm-dd hh:mm:ss'" 174 175 TIME_MAPPING = { 176 "year": "%Y", 177 "qq": "%q", 178 "q": "%q", 179 "quarter": "%q", 180 "dayofyear": "%j", 181 "day": "%d", 182 "dy": "%d", 183 "y": "%Y", 184 "week": "%W", 185 "ww": "%W", 186 "wk": "%W", 187 "hour": "%h", 188 "hh": "%I", 189 "minute": "%M", 190 "mi": "%M", 191 "n": "%M", 192 "second": "%S", 193 "ss": "%S", 194 "s": "%-S", 195 "millisecond": "%f", 196 "ms": "%f", 197 "weekday": "%W", 198 "dw": "%W", 199 "month": "%m", 200 "mm": "%M", 201 "m": "%-M", 202 "Y": "%Y", 203 "YYYY": "%Y", 204 "YY": "%y", 205 "MMMM": "%B", 206 "MMM": "%b", 207 "MM": "%m", 208 "M": "%-m", 209 "dd": "%d", 210 "d": "%-d", 211 "HH": "%H", 212 "H": "%-H", 213 "h": "%-I", 214 "S": "%f", 215 "yyyy": "%Y", 216 "yy": "%y", 217 } 218 219 CONVERT_FORMAT_MAPPING = { 220 "0": "%b %d %Y %-I:%M%p", 221 "1": "%m/%d/%y", 222 "2": "%y.%m.%d", 223 "3": "%d/%m/%y", 224 "4": "%d.%m.%y", 225 "5": "%d-%m-%y", 226 "6": "%d %b %y", 227 "7": "%b %d, %y", 228 "8": "%H:%M:%S", 229 "9": "%b %d %Y %-I:%M:%S:%f%p", 230 "10": "mm-dd-yy", 231 "11": "yy/mm/dd", 232 "12": "yymmdd", 233 "13": "%d %b %Y %H:%M:ss:%f", 234 "14": "%H:%M:%S:%f", 235 "20": "%Y-%m-%d %H:%M:%S", 236 "21": "%Y-%m-%d %H:%M:%S.%f", 237 "22": "%m/%d/%y %-I:%M:%S %p", 238 "23": "%Y-%m-%d", 239 "24": "%H:%M:%S", 240 "25": "%Y-%m-%d %H:%M:%S.%f", 241 "100": "%b %d %Y %-I:%M%p", 242 "101": "%m/%d/%Y", 243 "102": "%Y.%m.%d", 244 "103": "%d/%m/%Y", 245 "104": "%d.%m.%Y", 246 "105": "%d-%m-%Y", 247 "106": "%d %b %Y", 248 "107": "%b %d, %Y", 249 "108": "%H:%M:%S", 250 "109": "%b %d %Y %-I:%M:%S:%f%p", 251 "110": "%m-%d-%Y", 252 "111": "%Y/%m/%d", 253 "112": "%Y%m%d", 254 "113": "%d %b %Y %H:%M:%S:%f", 255 "114": "%H:%M:%S:%f", 256 "120": "%Y-%m-%d %H:%M:%S", 257 "121": "%Y-%m-%d %H:%M:%S.%f", 258 } 259 260 FORMAT_TIME_MAPPING = { 261 "y": "%B %Y", 262 "d": "%m/%d/%Y", 263 "H": "%-H", 264 "h": "%-I", 265 "s": "%Y-%m-%d %H:%M:%S", 266 "D": "%A,%B,%Y", 267 "f": "%A,%B,%Y %-I:%M %p", 268 "F": "%A,%B,%Y %-I:%M:%S %p", 269 "g": "%m/%d/%Y %-I:%M %p", 270 "G": "%m/%d/%Y %-I:%M:%S %p", 271 "M": "%B %-d", 272 "m": "%B %-d", 273 "O": "%Y-%m-%dT%H:%M:%S", 274 "u": "%Y-%M-%D %H:%M:%S%z", 275 "U": "%A, %B %D, %Y %H:%M:%S%z", 276 "T": "%-I:%M:%S %p", 277 "t": "%-I:%M", 278 "Y": "%a %Y", 279 } 280 281 class Tokenizer(tokens.Tokenizer): 282 IDENTIFIERS = ['"', ("[", "]")] 283 QUOTES = ["'", '"'] 284 HEX_STRINGS = [("0x", ""), ("0X", "")] 285 286 KEYWORDS = { 287 **tokens.Tokenizer.KEYWORDS, 288 "DATETIME2": TokenType.DATETIME, 289 "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, 290 "DECLARE": TokenType.COMMAND, 291 "IMAGE": TokenType.IMAGE, 292 "MONEY": TokenType.MONEY, 293 "NTEXT": TokenType.TEXT, 294 "NVARCHAR(MAX)": TokenType.TEXT, 295 "PRINT": TokenType.COMMAND, 296 "PROC": TokenType.PROCEDURE, 297 "REAL": TokenType.FLOAT, 298 "ROWVERSION": TokenType.ROWVERSION, 299 "SMALLDATETIME": TokenType.DATETIME, 300 "SMALLMONEY": TokenType.SMALLMONEY, 301 "SQL_VARIANT": TokenType.VARIANT, 302 "TIME": TokenType.TIMESTAMP, 303 "TOP": TokenType.TOP, 304 "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER, 305 "VARCHAR(MAX)": TokenType.TEXT, 306 "XML": TokenType.XML, 307 "OUTPUT": TokenType.RETURNING, 308 "SYSTEM_USER": TokenType.CURRENT_USER, 309 } 310 311 # TSQL allows @, # to appear as a variable/identifier prefix 312 SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy() 313 SINGLE_TOKENS.pop("#") 314 315 class Parser(parser.Parser): 316 FUNCTIONS = { 317 **parser.Parser.FUNCTIONS, 318 "CHARINDEX": lambda args: exp.StrPosition( 319 this=seq_get(args, 1), 320 substr=seq_get(args, 0), 321 position=seq_get(args, 2), 322 ), 323 "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), 324 "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), 325 "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), 326 "DATEPART": _format_time_lambda(exp.TimeToStr), 327 "EOMONTH": _parse_eomonth, 328 "FORMAT": _parse_format, 329 "GETDATE": exp.CurrentTimestamp.from_arg_list, 330 "HASHBYTES": _parse_hashbytes, 331 "IIF": exp.If.from_arg_list, 332 "ISNULL": exp.Coalesce.from_arg_list, 333 "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, 334 "LEN": exp.Length.from_arg_list, 335 "REPLICATE": exp.Repeat.from_arg_list, 336 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), 337 "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, 338 "SUSER_NAME": exp.CurrentUser.from_arg_list, 339 "SUSER_SNAME": exp.CurrentUser.from_arg_list, 340 "SYSTEM_USER": exp.CurrentUser.from_arg_list, 341 } 342 343 JOIN_HINTS = { 344 "LOOP", 345 "HASH", 346 "MERGE", 347 "REMOTE", 348 } 349 350 VAR_LENGTH_DATATYPES = { 351 DataType.Type.NVARCHAR, 352 DataType.Type.VARCHAR, 353 DataType.Type.CHAR, 354 DataType.Type.NCHAR, 355 } 356 357 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { 358 TokenType.TABLE, 359 *parser.Parser.TYPE_TOKENS, 360 } 361 362 STATEMENT_PARSERS = { 363 **parser.Parser.STATEMENT_PARSERS, 364 TokenType.END: lambda self: self._parse_command(), 365 } 366 367 LOG_BASE_FIRST = False 368 LOG_DEFAULTS_TO_LN = True 369 370 CONCAT_NULL_OUTPUTS_STRING = True 371 372 def _parse_commit_or_rollback(self) -> exp.Commit | exp.Rollback: 373 """Applies to SQL Server and Azure SQL Database 374 COMMIT [ { TRAN | TRANSACTION } 375 [ transaction_name | @tran_name_variable ] ] 376 [ WITH ( DELAYED_DURABILITY = { OFF | ON } ) ] 377 378 ROLLBACK { TRAN | TRANSACTION } 379 [ transaction_name | @tran_name_variable 380 | savepoint_name | @savepoint_variable ] 381 """ 382 rollback = self._prev.token_type == TokenType.ROLLBACK 383 384 self._match_texts({"TRAN", "TRANSACTION"}) 385 this = self._parse_id_var() 386 387 if rollback: 388 return self.expression(exp.Rollback, this=this) 389 390 durability = None 391 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): 392 self._match_text_seq("DELAYED_DURABILITY") 393 self._match(TokenType.EQ) 394 395 if self._match_text_seq("OFF"): 396 durability = False 397 else: 398 self._match(TokenType.ON) 399 durability = True 400 401 self._match_r_paren() 402 403 return self.expression(exp.Commit, this=this, durability=durability) 404 405 def _parse_transaction(self) -> exp.Transaction | exp.Command: 406 """Applies to SQL Server and Azure SQL Database 407 BEGIN { TRAN | TRANSACTION } 408 [ { transaction_name | @tran_name_variable } 409 [ WITH MARK [ 'description' ] ] 410 ] 411 """ 412 if self._match_texts(("TRAN", "TRANSACTION")): 413 transaction = self.expression(exp.Transaction, this=self._parse_id_var()) 414 if self._match_text_seq("WITH", "MARK"): 415 transaction.set("mark", self._parse_string()) 416 417 return transaction 418 419 return self._parse_as_command(self._prev) 420 421 def _parse_system_time(self) -> t.Optional[exp.Expression]: 422 if not self._match_text_seq("FOR", "SYSTEM_TIME"): 423 return None 424 425 if self._match_text_seq("AS", "OF"): 426 system_time = self.expression( 427 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" 428 ) 429 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): 430 kind = self._prev.text 431 this = self._parse_bitwise() 432 self._match_texts(("TO", "AND")) 433 expression = self._parse_bitwise() 434 system_time = self.expression( 435 exp.SystemTime, this=this, expression=expression, kind=kind 436 ) 437 elif self._match_text_seq("CONTAINED", "IN"): 438 args = self._parse_wrapped_csv(self._parse_bitwise) 439 system_time = self.expression( 440 exp.SystemTime, 441 this=seq_get(args, 0), 442 expression=seq_get(args, 1), 443 kind="CONTAINED IN", 444 ) 445 elif self._match(TokenType.ALL): 446 system_time = self.expression(exp.SystemTime, kind="ALL") 447 else: 448 system_time = None 449 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") 450 451 return system_time 452 453 def _parse_table_parts(self, schema: bool = False) -> exp.Table: 454 table = super()._parse_table_parts(schema=schema) 455 table.set("system_time", self._parse_system_time()) 456 return table 457 458 def _parse_returns(self) -> exp.ReturnsProperty: 459 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) 460 returns = super()._parse_returns() 461 returns.set("table", table) 462 return returns 463 464 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: 465 to = self._parse_types() 466 self._match(TokenType.COMMA) 467 this = self._parse_conjunction() 468 469 if not to or not this: 470 return None 471 472 # Retrieve length of datatype and override to default if not specified 473 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: 474 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) 475 476 # Check whether a conversion with format is applicable 477 if self._match(TokenType.COMMA): 478 format_val = self._parse_number() 479 format_val_name = format_val.name if format_val else "" 480 481 if format_val_name not in TSQL.CONVERT_FORMAT_MAPPING: 482 raise ValueError( 483 f"CONVERT function at T-SQL does not support format style {format_val_name}" 484 ) 485 486 format_norm = exp.Literal.string(TSQL.CONVERT_FORMAT_MAPPING[format_val_name]) 487 488 # Check whether the convert entails a string to date format 489 if to.this == DataType.Type.DATE: 490 return self.expression(exp.StrToDate, this=this, format=format_norm) 491 # Check whether the convert entails a string to datetime format 492 elif to.this == DataType.Type.DATETIME: 493 return self.expression(exp.StrToTime, this=this, format=format_norm) 494 # Check whether the convert entails a date to string format 495 elif to.this in self.VAR_LENGTH_DATATYPES: 496 return self.expression( 497 exp.Cast if strict else exp.TryCast, 498 to=to, 499 this=self.expression(exp.TimeToStr, this=this, format=format_norm), 500 ) 501 elif to.this == DataType.Type.TEXT: 502 return self.expression(exp.TimeToStr, this=this, format=format_norm) 503 504 # Entails a simple cast without any format requirement 505 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 506 507 def _parse_user_defined_function( 508 self, kind: t.Optional[TokenType] = None 509 ) -> t.Optional[exp.Expression]: 510 this = super()._parse_user_defined_function(kind=kind) 511 512 if ( 513 kind == TokenType.FUNCTION 514 or isinstance(this, exp.UserDefinedFunction) 515 or self._match(TokenType.ALIAS, advance=False) 516 ): 517 return this 518 519 expressions = self._parse_csv(self._parse_function_parameter) 520 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) 521 522 class Generator(generator.Generator): 523 LOCKING_READS_SUPPORTED = True 524 LIMIT_IS_TOP = True 525 QUERY_HINTS = False 526 RETURNING_END = False 527 528 TYPE_MAPPING = { 529 **generator.Generator.TYPE_MAPPING, 530 exp.DataType.Type.INT: "INTEGER", 531 exp.DataType.Type.DECIMAL: "NUMERIC", 532 exp.DataType.Type.DATETIME: "DATETIME2", 533 exp.DataType.Type.VARIANT: "SQL_VARIANT", 534 } 535 536 TRANSFORMS = { 537 **generator.Generator.TRANSFORMS, 538 exp.DateAdd: generate_date_delta_with_unit_sql, 539 exp.DateDiff: generate_date_delta_with_unit_sql, 540 exp.CurrentDate: rename_func("GETDATE"), 541 exp.CurrentTimestamp: rename_func("GETDATE"), 542 exp.Extract: rename_func("DATEPART"), 543 exp.GroupConcat: _string_agg_sql, 544 exp.If: rename_func("IIF"), 545 exp.Max: max_or_greatest, 546 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), 547 exp.Min: min_or_least, 548 exp.NumberToStr: _format_sql, 549 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 550 exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), 551 exp.SHA2: lambda self, e: self.func( 552 "HASHBYTES", 553 exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), 554 e.this, 555 ), 556 exp.TimeToStr: _format_sql, 557 } 558 559 TRANSFORMS.pop(exp.ReturnsProperty) 560 561 PROPERTIES_LOCATION = { 562 **generator.Generator.PROPERTIES_LOCATION, 563 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 564 } 565 566 LIMIT_FETCH = "FETCH" 567 568 def offset_sql(self, expression: exp.Offset) -> str: 569 return f"{super().offset_sql(expression)} ROWS" 570 571 def systemtime_sql(self, expression: exp.SystemTime) -> str: 572 kind = expression.args["kind"] 573 if kind == "ALL": 574 return "FOR SYSTEM_TIME ALL" 575 576 start = self.sql(expression, "this") 577 if kind == "AS OF": 578 return f"FOR SYSTEM_TIME AS OF {start}" 579 580 end = self.sql(expression, "expression") 581 if kind == "FROM": 582 return f"FOR SYSTEM_TIME FROM {start} TO {end}" 583 if kind == "BETWEEN": 584 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" 585 586 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" 587 588 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: 589 table = expression.args.get("table") 590 table = f"{table} " if table else "" 591 return f"RETURNS {table}{self.sql(expression, 'this')}" 592 593 def returning_sql(self, expression: exp.Returning) -> str: 594 into = self.sql(expression, "into") 595 into = self.seg(f"INTO {into}") if into else "" 596 return f"{self.seg('OUTPUT')} {self.expressions(expression, flat=True)}{into}" 597 598 def transaction_sql(self, expression: exp.Transaction) -> str: 599 this = self.sql(expression, "this") 600 this = f" {this}" if this else "" 601 mark = self.sql(expression, "mark") 602 mark = f" WITH MARK {mark}" if mark else "" 603 return f"BEGIN TRANSACTION{this}{mark}" 604 605 def commit_sql(self, expression: exp.Commit) -> str: 606 this = self.sql(expression, "this") 607 this = f" {this}" if this else "" 608 durability = expression.args.get("durability") 609 durability = ( 610 f" WITH (DELAYED_DURABILITY = {'ON' if durability else 'OFF'})" 611 if durability is not None 612 else "" 613 ) 614 return f"COMMIT TRANSACTION{this}{durability}" 615 616 def rollback_sql(self, expression: exp.Rollback) -> str: 617 this = self.sql(expression, "this") 618 this = f" {this}" if this else "" 619 return f"ROLLBACK TRANSACTION{this}"
TIME_MAPPING: Dict[str, str] =
{'year': '%Y', 'qq': '%q', 'q': '%q', 'quarter': '%q', 'dayofyear': '%j', 'day': '%d', 'dy': '%d', 'y': '%Y', 'week': '%W', 'ww': '%W', 'wk': '%W', 'hour': '%h', 'hh': '%I', 'minute': '%M', 'mi': '%M', 'n': '%M', 'second': '%S', 'ss': '%S', 's': '%-S', 'millisecond': '%f', 'ms': '%f', 'weekday': '%W', 'dw': '%W', 'month': '%m', 'mm': '%M', 'm': '%-M', 'Y': '%Y', 'YYYY': '%Y', 'YY': '%y', 'MMMM': '%B', 'MMM': '%b', 'MM': '%m', 'M': '%-m', 'dd': '%d', 'd': '%-d', 'HH': '%H', 'H': '%-H', 'h': '%-I', 'S': '%f', 'yyyy': '%Y', 'yy': '%y'}
CONVERT_FORMAT_MAPPING =
{'0': '%b %d %Y %-I:%M%p', '1': '%m/%d/%y', '2': '%y.%m.%d', '3': '%d/%m/%y', '4': '%d.%m.%y', '5': '%d-%m-%y', '6': '%d %b %y', '7': '%b %d, %y', '8': '%H:%M:%S', '9': '%b %d %Y %-I:%M:%S:%f%p', '10': 'mm-dd-yy', '11': 'yy/mm/dd', '12': 'yymmdd', '13': '%d %b %Y %H:%M:ss:%f', '14': '%H:%M:%S:%f', '20': '%Y-%m-%d %H:%M:%S', '21': '%Y-%m-%d %H:%M:%S.%f', '22': '%m/%d/%y %-I:%M:%S %p', '23': '%Y-%m-%d', '24': '%H:%M:%S', '25': '%Y-%m-%d %H:%M:%S.%f', '100': '%b %d %Y %-I:%M%p', '101': '%m/%d/%Y', '102': '%Y.%m.%d', '103': '%d/%m/%Y', '104': '%d.%m.%Y', '105': '%d-%m-%Y', '106': '%d %b %Y', '107': '%b %d, %Y', '108': '%H:%M:%S', '109': '%b %d %Y %-I:%M:%S:%f%p', '110': '%m-%d-%Y', '111': '%Y/%m/%d', '112': '%Y%m%d', '113': '%d %b %Y %H:%M:%S:%f', '114': '%H:%M:%S:%f', '120': '%Y-%m-%d %H:%M:%S', '121': '%Y-%m-%d %H:%M:%S.%f'}
FORMAT_TIME_MAPPING =
{'y': '%B %Y', 'd': '%m/%d/%Y', 'H': '%-H', 'h': '%-I', 's': '%Y-%m-%d %H:%M:%S', 'D': '%A,%B,%Y', 'f': '%A,%B,%Y %-I:%M %p', 'F': '%A,%B,%Y %-I:%M:%S %p', 'g': '%m/%d/%Y %-I:%M %p', 'G': '%m/%d/%Y %-I:%M:%S %p', 'M': '%B %-d', 'm': '%B %-d', 'O': '%Y-%m-%dT%H:%M:%S', 'u': '%Y-%M-%D %H:%M:%S%z', 'U': '%A, %B %D, %Y %H:%M:%S%z', 'T': '%-I:%M:%S %p', 't': '%-I:%M', 'Y': '%a %Y'}
tokenizer_class =
<class 'sqlglot.dialects.tsql.TSQL.Tokenizer'>
parser_class =
<class 'sqlglot.dialects.tsql.TSQL.Parser'>
generator_class =
<class 'sqlglot.dialects.tsql.TSQL.Generator'>
TIME_TRIE: Dict =
{'y': {'e': {'a': {'r': {0: True}}}, 0: True, 'y': {'y': {'y': {0: True}}, 0: True}}, 'q': {'q': {0: True}, 0: True, 'u': {'a': {'r': {'t': {'e': {'r': {0: True}}}}}}}, 'd': {'a': {'y': {'o': {'f': {'y': {'e': {'a': {'r': {0: True}}}}}}, 0: True}}, 'y': {0: True}, 'w': {0: True}, 'd': {0: True}, 0: True}, 'w': {'e': {'e': {'k': {0: True, 'd': {'a': {'y': {0: True}}}}}}, 'w': {0: True}, 'k': {0: True}}, 'h': {'o': {'u': {'r': {0: True}}}, 'h': {0: True}, 0: True}, 'm': {'i': {'n': {'u': {'t': {'e': {0: True}}}}, 0: True, 'l': {'l': {'i': {'s': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}}}}}}, 's': {0: True}, 'o': {'n': {'t': {'h': {0: True}}}}, 'm': {0: True}, 0: True}, 'n': {0: True}, 's': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}, 's': {0: True}, 0: True}, 'Y': {0: True, 'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'M': {'M': {'M': {'M': {0: True}, 0: True}, 0: True}, 0: True}, 'H': {'H': {0: True}, 0: True}, 'S': {0: True}}
FORMAT_TRIE: Dict =
{'y': {'e': {'a': {'r': {0: True}}}, 0: True, 'y': {'y': {'y': {0: True}}, 0: True}}, 'q': {'q': {0: True}, 0: True, 'u': {'a': {'r': {'t': {'e': {'r': {0: True}}}}}}}, 'd': {'a': {'y': {'o': {'f': {'y': {'e': {'a': {'r': {0: True}}}}}}, 0: True}}, 'y': {0: True}, 'w': {0: True}, 'd': {0: True}, 0: True}, 'w': {'e': {'e': {'k': {0: True, 'd': {'a': {'y': {0: True}}}}}}, 'w': {0: True}, 'k': {0: True}}, 'h': {'o': {'u': {'r': {0: True}}}, 'h': {0: True}, 0: True}, 'm': {'i': {'n': {'u': {'t': {'e': {0: True}}}}, 0: True, 'l': {'l': {'i': {'s': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}}}}}}, 's': {0: True}, 'o': {'n': {'t': {'h': {0: True}}}}, 'm': {0: True}, 0: True}, 'n': {0: True}, 's': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}, 's': {0: True}, 0: True}, 'Y': {0: True, 'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'M': {'M': {'M': {'M': {0: True}, 0: True}, 0: True}, 0: True}, 'H': {'H': {0: True}, 0: True}, 'S': {0: True}}
INVERSE_TIME_MAPPING: Dict[str, str] =
{'%Y': 'yyyy', '%q': 'quarter', '%j': 'dayofyear', '%d': 'dd', '%W': 'dw', '%h': 'hour', '%I': 'hh', '%M': 'mm', '%S': 'ss', '%-S': 's', '%f': 'S', '%m': 'MM', '%-M': 'm', '%y': 'yy', '%B': 'MMMM', '%b': 'MMM', '%-m': 'M', '%-d': 'd', '%H': 'HH', '%-H': 'H', '%-I': 'h'}
INVERSE_TIME_TRIE: Dict =
{'%': {'Y': {0: True}, 'q': {0: True}, 'j': {0: True}, 'd': {0: True}, 'W': {0: True}, 'h': {0: True}, 'I': {0: True}, 'M': {0: True}, 'S': {0: True}, '-': {'S': {0: True}, 'M': {0: True}, 'm': {0: True}, 'd': {0: True}, 'H': {0: True}, 'I': {0: True}}, 'f': {0: True}, 'm': {0: True}, 'y': {0: True}, 'B': {0: True}, 'b': {0: True}, 'H': {0: True}}}
Inherited Members
- sqlglot.dialects.dialect.Dialect
- INDEX_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- IDENTIFIERS_CAN_START_WITH_DIGIT
- STRICT_STRING_CONCAT
- NORMALIZE_FUNCTIONS
- DATE_FORMAT
- DATEINT_FORMAT
- FORMAT_MAPPING
- get_or_raise
- format_time
- normalize_identifier
- case_sensitive
- can_identify
- quote_identifier
- parse
- parse_into
- generate
- transpile
- tokenize
- tokenizer
- parser
- generator
281 class Tokenizer(tokens.Tokenizer): 282 IDENTIFIERS = ['"', ("[", "]")] 283 QUOTES = ["'", '"'] 284 HEX_STRINGS = [("0x", ""), ("0X", "")] 285 286 KEYWORDS = { 287 **tokens.Tokenizer.KEYWORDS, 288 "DATETIME2": TokenType.DATETIME, 289 "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, 290 "DECLARE": TokenType.COMMAND, 291 "IMAGE": TokenType.IMAGE, 292 "MONEY": TokenType.MONEY, 293 "NTEXT": TokenType.TEXT, 294 "NVARCHAR(MAX)": TokenType.TEXT, 295 "PRINT": TokenType.COMMAND, 296 "PROC": TokenType.PROCEDURE, 297 "REAL": TokenType.FLOAT, 298 "ROWVERSION": TokenType.ROWVERSION, 299 "SMALLDATETIME": TokenType.DATETIME, 300 "SMALLMONEY": TokenType.SMALLMONEY, 301 "SQL_VARIANT": TokenType.VARIANT, 302 "TIME": TokenType.TIMESTAMP, 303 "TOP": TokenType.TOP, 304 "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER, 305 "VARCHAR(MAX)": TokenType.TEXT, 306 "XML": TokenType.XML, 307 "OUTPUT": TokenType.RETURNING, 308 "SYSTEM_USER": TokenType.CURRENT_USER, 309 } 310 311 # TSQL allows @, # to appear as a variable/identifier prefix 312 SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy() 313 SINGLE_TOKENS.pop("#")
KEYWORDS =
{'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'IF': <TokenType.IF: 'IF'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NEXT VALUE FOR': <TokenType.NEXT_VALUE_FOR: 'NEXT_VALUE_FOR'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, 'VALUES': <TokenType.VALUES: 'VALUES'>, 'VIEW': <TokenType.VIEW: 'VIEW'>, 'VOLATILE': <TokenType.VOLATILE: 'VOLATILE'>, 'WHEN': <TokenType.WHEN: 'WHEN'>, 'WHERE': <TokenType.WHERE: 'WHERE'>, 'WINDOW': <TokenType.WINDOW: 'WINDOW'>, 'WITH': <TokenType.WITH: 'WITH'>, 'APPLY': <TokenType.APPLY: 'APPLY'>, 'ARRAY': <TokenType.ARRAY: 'ARRAY'>, 'BIT': <TokenType.BIT: 'BIT'>, 'BOOL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BOOLEAN': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BYTE': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.BIGINT: 'BIGINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'COPY': <TokenType.COMMAND: 'COMMAND'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.COMMAND: 'COMMAND'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'TRUNCATE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'DATETIME2': <TokenType.DATETIME: 'DATETIME'>, 'DATETIMEOFFSET': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'DECLARE': <TokenType.COMMAND: 'COMMAND'>, 'IMAGE': <TokenType.IMAGE: 'IMAGE'>, 'MONEY': <TokenType.MONEY: 'MONEY'>, 'NTEXT': <TokenType.TEXT: 'TEXT'>, 'NVARCHAR(MAX)': <TokenType.TEXT: 'TEXT'>, 'PRINT': <TokenType.COMMAND: 'COMMAND'>, 'PROC': <TokenType.PROCEDURE: 'PROCEDURE'>, 'ROWVERSION': <TokenType.ROWVERSION: 'ROWVERSION'>, 'SMALLDATETIME': <TokenType.DATETIME: 'DATETIME'>, 'SMALLMONEY': <TokenType.SMALLMONEY: 'SMALLMONEY'>, 'SQL_VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'TOP': <TokenType.TOP: 'TOP'>, 'UNIQUEIDENTIFIER': <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, 'VARCHAR(MAX)': <TokenType.TEXT: 'TEXT'>, 'XML': <TokenType.XML: 'XML'>, 'OUTPUT': <TokenType.RETURNING: 'RETURNING'>, 'SYSTEM_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>}
SINGLE_TOKENS =
{'(': <TokenType.L_PAREN: 'L_PAREN'>, ')': <TokenType.R_PAREN: 'R_PAREN'>, '[': <TokenType.L_BRACKET: 'L_BRACKET'>, ']': <TokenType.R_BRACKET: 'R_BRACKET'>, '{': <TokenType.L_BRACE: 'L_BRACE'>, '}': <TokenType.R_BRACE: 'R_BRACE'>, '&': <TokenType.AMP: 'AMP'>, '^': <TokenType.CARET: 'CARET'>, ':': <TokenType.COLON: 'COLON'>, ',': <TokenType.COMMA: 'COMMA'>, '.': <TokenType.DOT: 'DOT'>, '-': <TokenType.DASH: 'DASH'>, '=': <TokenType.EQ: 'EQ'>, '>': <TokenType.GT: 'GT'>, '<': <TokenType.LT: 'LT'>, '%': <TokenType.MOD: 'MOD'>, '!': <TokenType.NOT: 'NOT'>, '|': <TokenType.PIPE: 'PIPE'>, '+': <TokenType.PLUS: 'PLUS'>, ';': <TokenType.SEMICOLON: 'SEMICOLON'>, '/': <TokenType.SLASH: 'SLASH'>, '\\': <TokenType.BACKSLASH: 'BACKSLASH'>, '*': <TokenType.STAR: 'STAR'>, '~': <TokenType.TILDA: 'TILDA'>, '?': <TokenType.PLACEHOLDER: 'PLACEHOLDER'>, '@': <TokenType.PARAMETER: 'PARAMETER'>, "'": <TokenType.QUOTE: 'QUOTE'>, '`': <TokenType.IDENTIFIER: 'IDENTIFIER'>, '"': <TokenType.IDENTIFIER: 'IDENTIFIER'>}
315 class Parser(parser.Parser): 316 FUNCTIONS = { 317 **parser.Parser.FUNCTIONS, 318 "CHARINDEX": lambda args: exp.StrPosition( 319 this=seq_get(args, 1), 320 substr=seq_get(args, 0), 321 position=seq_get(args, 2), 322 ), 323 "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), 324 "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), 325 "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), 326 "DATEPART": _format_time_lambda(exp.TimeToStr), 327 "EOMONTH": _parse_eomonth, 328 "FORMAT": _parse_format, 329 "GETDATE": exp.CurrentTimestamp.from_arg_list, 330 "HASHBYTES": _parse_hashbytes, 331 "IIF": exp.If.from_arg_list, 332 "ISNULL": exp.Coalesce.from_arg_list, 333 "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, 334 "LEN": exp.Length.from_arg_list, 335 "REPLICATE": exp.Repeat.from_arg_list, 336 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), 337 "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, 338 "SUSER_NAME": exp.CurrentUser.from_arg_list, 339 "SUSER_SNAME": exp.CurrentUser.from_arg_list, 340 "SYSTEM_USER": exp.CurrentUser.from_arg_list, 341 } 342 343 JOIN_HINTS = { 344 "LOOP", 345 "HASH", 346 "MERGE", 347 "REMOTE", 348 } 349 350 VAR_LENGTH_DATATYPES = { 351 DataType.Type.NVARCHAR, 352 DataType.Type.VARCHAR, 353 DataType.Type.CHAR, 354 DataType.Type.NCHAR, 355 } 356 357 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { 358 TokenType.TABLE, 359 *parser.Parser.TYPE_TOKENS, 360 } 361 362 STATEMENT_PARSERS = { 363 **parser.Parser.STATEMENT_PARSERS, 364 TokenType.END: lambda self: self._parse_command(), 365 } 366 367 LOG_BASE_FIRST = False 368 LOG_DEFAULTS_TO_LN = True 369 370 CONCAT_NULL_OUTPUTS_STRING = True 371 372 def _parse_commit_or_rollback(self) -> exp.Commit | exp.Rollback: 373 """Applies to SQL Server and Azure SQL Database 374 COMMIT [ { TRAN | TRANSACTION } 375 [ transaction_name | @tran_name_variable ] ] 376 [ WITH ( DELAYED_DURABILITY = { OFF | ON } ) ] 377 378 ROLLBACK { TRAN | TRANSACTION } 379 [ transaction_name | @tran_name_variable 380 | savepoint_name | @savepoint_variable ] 381 """ 382 rollback = self._prev.token_type == TokenType.ROLLBACK 383 384 self._match_texts({"TRAN", "TRANSACTION"}) 385 this = self._parse_id_var() 386 387 if rollback: 388 return self.expression(exp.Rollback, this=this) 389 390 durability = None 391 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): 392 self._match_text_seq("DELAYED_DURABILITY") 393 self._match(TokenType.EQ) 394 395 if self._match_text_seq("OFF"): 396 durability = False 397 else: 398 self._match(TokenType.ON) 399 durability = True 400 401 self._match_r_paren() 402 403 return self.expression(exp.Commit, this=this, durability=durability) 404 405 def _parse_transaction(self) -> exp.Transaction | exp.Command: 406 """Applies to SQL Server and Azure SQL Database 407 BEGIN { TRAN | TRANSACTION } 408 [ { transaction_name | @tran_name_variable } 409 [ WITH MARK [ 'description' ] ] 410 ] 411 """ 412 if self._match_texts(("TRAN", "TRANSACTION")): 413 transaction = self.expression(exp.Transaction, this=self._parse_id_var()) 414 if self._match_text_seq("WITH", "MARK"): 415 transaction.set("mark", self._parse_string()) 416 417 return transaction 418 419 return self._parse_as_command(self._prev) 420 421 def _parse_system_time(self) -> t.Optional[exp.Expression]: 422 if not self._match_text_seq("FOR", "SYSTEM_TIME"): 423 return None 424 425 if self._match_text_seq("AS", "OF"): 426 system_time = self.expression( 427 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" 428 ) 429 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): 430 kind = self._prev.text 431 this = self._parse_bitwise() 432 self._match_texts(("TO", "AND")) 433 expression = self._parse_bitwise() 434 system_time = self.expression( 435 exp.SystemTime, this=this, expression=expression, kind=kind 436 ) 437 elif self._match_text_seq("CONTAINED", "IN"): 438 args = self._parse_wrapped_csv(self._parse_bitwise) 439 system_time = self.expression( 440 exp.SystemTime, 441 this=seq_get(args, 0), 442 expression=seq_get(args, 1), 443 kind="CONTAINED IN", 444 ) 445 elif self._match(TokenType.ALL): 446 system_time = self.expression(exp.SystemTime, kind="ALL") 447 else: 448 system_time = None 449 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") 450 451 return system_time 452 453 def _parse_table_parts(self, schema: bool = False) -> exp.Table: 454 table = super()._parse_table_parts(schema=schema) 455 table.set("system_time", self._parse_system_time()) 456 return table 457 458 def _parse_returns(self) -> exp.ReturnsProperty: 459 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) 460 returns = super()._parse_returns() 461 returns.set("table", table) 462 return returns 463 464 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: 465 to = self._parse_types() 466 self._match(TokenType.COMMA) 467 this = self._parse_conjunction() 468 469 if not to or not this: 470 return None 471 472 # Retrieve length of datatype and override to default if not specified 473 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: 474 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) 475 476 # Check whether a conversion with format is applicable 477 if self._match(TokenType.COMMA): 478 format_val = self._parse_number() 479 format_val_name = format_val.name if format_val else "" 480 481 if format_val_name not in TSQL.CONVERT_FORMAT_MAPPING: 482 raise ValueError( 483 f"CONVERT function at T-SQL does not support format style {format_val_name}" 484 ) 485 486 format_norm = exp.Literal.string(TSQL.CONVERT_FORMAT_MAPPING[format_val_name]) 487 488 # Check whether the convert entails a string to date format 489 if to.this == DataType.Type.DATE: 490 return self.expression(exp.StrToDate, this=this, format=format_norm) 491 # Check whether the convert entails a string to datetime format 492 elif to.this == DataType.Type.DATETIME: 493 return self.expression(exp.StrToTime, this=this, format=format_norm) 494 # Check whether the convert entails a date to string format 495 elif to.this in self.VAR_LENGTH_DATATYPES: 496 return self.expression( 497 exp.Cast if strict else exp.TryCast, 498 to=to, 499 this=self.expression(exp.TimeToStr, this=this, format=format_norm), 500 ) 501 elif to.this == DataType.Type.TEXT: 502 return self.expression(exp.TimeToStr, this=this, format=format_norm) 503 504 # Entails a simple cast without any format requirement 505 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 506 507 def _parse_user_defined_function( 508 self, kind: t.Optional[TokenType] = None 509 ) -> t.Optional[exp.Expression]: 510 this = super()._parse_user_defined_function(kind=kind) 511 512 if ( 513 kind == TokenType.FUNCTION 514 or isinstance(this, exp.UserDefinedFunction) 515 or self._match(TokenType.ALIAS, advance=False) 516 ): 517 return this 518 519 expressions = self._parse_csv(self._parse_function_parameter) 520 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions)
Parser consumes a list of tokens produced by the Tokenizer and produces a parsed syntax tree.
Arguments:
- error_level: The desired error level. Default: ErrorLevel.IMMEDIATE
- error_message_context: Determines the amount of context to capture from a query string when displaying the error message (in number of characters). Default: 100
- max_errors: Maximum number of error messages to include in a raised ParseError. This is only relevant if error_level is ErrorLevel.RAISE. Default: 3
FUNCTIONS =
{'ABS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Abs'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Array'>>, 'ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayJoin'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySort'>>, 'ARRAY_SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySum'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'COALESCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Concat'>>, 'CONCAT_WS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConcatWs'>>, 'COUNT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Count'>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'CURRENT_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'CURRENT_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDatetime'>>, 'CURRENT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Date'>>, 'DATE_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateAdd'>>, 'DATEDIFF': <function parse_date_delta.<locals>.inner_func>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateSub'>>, 'DATE_TO_DATE_STR': <function Parser.<lambda>>, 'DATE_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateToDi'>>, 'DATE_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateTrunc'>>, 'DATETIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeAdd'>>, 'DATETIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeDiff'>>, 'DATETIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeSub'>>, 'DATETIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeTrunc'>>, 'DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Day'>>, 'DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAYOFMONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAY_OF_WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FLOOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Floor'>>, 'FROM_BASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase'>>, 'FROM_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'GREATEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Greatest'>>, 'GROUP_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GroupConcat'>>, 'HEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hex'>>, 'HLL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hll'>>, 'IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'INITCAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Initcap'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'JSON_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtract'>>, 'JSON_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtractScalar'>>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'LAST_DATE_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDateOfMonth'>>, 'LEAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Least'>>, 'LEFT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Left'>>, 'LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log'>>, 'LOG10': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log10'>>, 'LOG2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Log2'>>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOLOR_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'LOWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'LCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'MD5': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5'>>, 'MD5_DIGEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Map'>>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Month'>>, 'MONTHS_BETWEEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MonthsBetween'>>, 'NEXT_VALUE_FOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NextValueFor'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'RANGE_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RangeN'>>, 'READ_CSV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ReadCSV'>>, 'REDUCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Reduce'>>, 'REGEXP_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtract'>>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpReplace'>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeConcat'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SET_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SetAgg'>>, 'SORT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDDEV_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevPop'>>, 'STDDEV_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevSamp'>>, 'STR_POSITION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToDate'>>, 'STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToTime'>>, 'STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToUnix'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeDiff'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TRANSFORM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Transform'>>, 'TRIM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Trim'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNIX_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToStr'>>, 'UNIX_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTime'>>, 'UNIX_TO_TIME_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTimeStr'>>, 'UPPER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'VAR_MAP': <function parse_var_map>, 'VARIANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'VAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Week'>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WHEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.When'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Year'>>, 'GLOB': <function Parser.<lambda>>, 'LIKE': <function parse_like>, 'CHARINDEX': <function TSQL.Parser.<lambda>>, 'DATEADD': <function parse_date_delta.<locals>.inner_func>, 'DATENAME': <function _format_time_lambda.<locals>._format_time>, 'DATEPART': <function _format_time_lambda.<locals>._format_time>, 'EOMONTH': <function _parse_eomonth>, 'FORMAT': <function _parse_format>, 'GETDATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'HASHBYTES': <function _parse_hashbytes>, 'IIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'ISNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'JSON_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtractScalar'>>, 'REPLICATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'SQUARE': <function TSQL.Parser.<lambda>>, 'SYSDATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'SUSER_NAME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'SUSER_SNAME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'SYSTEM_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>}
VAR_LENGTH_DATATYPES =
{<Type.NCHAR: 'NCHAR'>, <Type.VARCHAR: 'VARCHAR'>, <Type.NVARCHAR: 'NVARCHAR'>, <Type.CHAR: 'CHAR'>}
RETURNS_TABLE_TOKENS =
{<TokenType.PARTITION: 'PARTITION'>, <TokenType.NATURAL: 'NATURAL'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.VAR: 'VAR'>, <TokenType.SOME: 'SOME'>, <TokenType.IS: 'IS'>, <TokenType.KEEP: 'KEEP'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.ASC: 'ASC'>, <TokenType.FALSE: 'FALSE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.END: 'END'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.DIV: 'DIV'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.ROW: 'ROW'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.ANTI: 'ANTI'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.VIEW: 'VIEW'>, <TokenType.FILTER: 'FILTER'>, <TokenType.NEXT: 'NEXT'>, <TokenType.TOP: 'TOP'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.DELETE: 'DELETE'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.LEFT: 'LEFT'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.CACHE: 'CACHE'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.ANY: 'ANY'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.ALL: 'ALL'>, <TokenType.SEMI: 'SEMI'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.APPLY: 'APPLY'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.IF: 'IF'>, <TokenType.SHOW: 'SHOW'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.SET: 'SET'>, <TokenType.TRUE: 'TRUE'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.INDEX: 'INDEX'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.MERGE: 'MERGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.CASE: 'CASE'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.FULL: 'FULL'>, <TokenType.DESC: 'DESC'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.SETTINGS: 'SETTINGS'>}
STATEMENT_PARSERS =
{<TokenType.ALTER: 'ALTER'>: <function Parser.<lambda>>, <TokenType.BEGIN: 'BEGIN'>: <function Parser.<lambda>>, <TokenType.CACHE: 'CACHE'>: <function Parser.<lambda>>, <TokenType.COMMIT: 'COMMIT'>: <function Parser.<lambda>>, <TokenType.COMMENT: 'COMMENT'>: <function Parser.<lambda>>, <TokenType.CREATE: 'CREATE'>: <function Parser.<lambda>>, <TokenType.DELETE: 'DELETE'>: <function Parser.<lambda>>, <TokenType.DESC: 'DESC'>: <function Parser.<lambda>>, <TokenType.DESCRIBE: 'DESCRIBE'>: <function Parser.<lambda>>, <TokenType.DROP: 'DROP'>: <function Parser.<lambda>>, <TokenType.FROM: 'FROM'>: <function Parser.<lambda>>, <TokenType.INSERT: 'INSERT'>: <function Parser.<lambda>>, <TokenType.LOAD: 'LOAD'>: <function Parser.<lambda>>, <TokenType.MERGE: 'MERGE'>: <function Parser.<lambda>>, <TokenType.PIVOT: 'PIVOT'>: <function Parser.<lambda>>, <TokenType.PRAGMA: 'PRAGMA'>: <function Parser.<lambda>>, <TokenType.ROLLBACK: 'ROLLBACK'>: <function Parser.<lambda>>, <TokenType.SET: 'SET'>: <function Parser.<lambda>>, <TokenType.UNCACHE: 'UNCACHE'>: <function Parser.<lambda>>, <TokenType.UPDATE: 'UPDATE'>: <function Parser.<lambda>>, <TokenType.USE: 'USE'>: <function Parser.<lambda>>, <TokenType.END: 'END'>: <function TSQL.Parser.<lambda>>}
SET_TRIE: Dict =
{'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}}
FORMAT_TRIE: Dict =
{'y': {'e': {'a': {'r': {0: True}}}, 0: True, 'y': {'y': {'y': {0: True}}, 0: True}}, 'q': {'q': {0: True}, 0: True, 'u': {'a': {'r': {'t': {'e': {'r': {0: True}}}}}}}, 'd': {'a': {'y': {'o': {'f': {'y': {'e': {'a': {'r': {0: True}}}}}}, 0: True}}, 'y': {0: True}, 'w': {0: True}, 'd': {0: True}, 0: True}, 'w': {'e': {'e': {'k': {0: True, 'd': {'a': {'y': {0: True}}}}}}, 'w': {0: True}, 'k': {0: True}}, 'h': {'o': {'u': {'r': {0: True}}}, 'h': {0: True}, 0: True}, 'm': {'i': {'n': {'u': {'t': {'e': {0: True}}}}, 0: True, 'l': {'l': {'i': {'s': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}}}}}}, 's': {0: True}, 'o': {'n': {'t': {'h': {0: True}}}}, 'm': {0: True}, 0: True}, 'n': {0: True}, 's': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}, 's': {0: True}, 0: True}, 'Y': {0: True, 'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'M': {'M': {'M': {'M': {0: True}, 0: True}, 0: True}, 0: True}, 'H': {'H': {0: True}, 0: True}, 'S': {0: True}}
TIME_MAPPING: Dict[str, str] =
{'year': '%Y', 'qq': '%q', 'q': '%q', 'quarter': '%q', 'dayofyear': '%j', 'day': '%d', 'dy': '%d', 'y': '%Y', 'week': '%W', 'ww': '%W', 'wk': '%W', 'hour': '%h', 'hh': '%I', 'minute': '%M', 'mi': '%M', 'n': '%M', 'second': '%S', 'ss': '%S', 's': '%-S', 'millisecond': '%f', 'ms': '%f', 'weekday': '%W', 'dw': '%W', 'month': '%m', 'mm': '%M', 'm': '%-M', 'Y': '%Y', 'YYYY': '%Y', 'YY': '%y', 'MMMM': '%B', 'MMM': '%b', 'MM': '%m', 'M': '%-m', 'dd': '%d', 'd': '%-d', 'HH': '%H', 'H': '%-H', 'h': '%-I', 'S': '%f', 'yyyy': '%Y', 'yy': '%y'}
TIME_TRIE: Dict =
{'y': {'e': {'a': {'r': {0: True}}}, 0: True, 'y': {'y': {'y': {0: True}}, 0: True}}, 'q': {'q': {0: True}, 0: True, 'u': {'a': {'r': {'t': {'e': {'r': {0: True}}}}}}}, 'd': {'a': {'y': {'o': {'f': {'y': {'e': {'a': {'r': {0: True}}}}}}, 0: True}}, 'y': {0: True}, 'w': {0: True}, 'd': {0: True}, 0: True}, 'w': {'e': {'e': {'k': {0: True, 'd': {'a': {'y': {0: True}}}}}}, 'w': {0: True}, 'k': {0: True}}, 'h': {'o': {'u': {'r': {0: True}}}, 'h': {0: True}, 0: True}, 'm': {'i': {'n': {'u': {'t': {'e': {0: True}}}}, 0: True, 'l': {'l': {'i': {'s': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}}}}}}, 's': {0: True}, 'o': {'n': {'t': {'h': {0: True}}}}, 'm': {0: True}, 0: True}, 'n': {0: True}, 's': {'e': {'c': {'o': {'n': {'d': {0: True}}}}}, 's': {0: True}, 0: True}, 'Y': {0: True, 'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'M': {'M': {'M': {'M': {0: True}, 0: True}, 0: True}, 0: True}, 'H': {'H': {0: True}, 0: True}, 'S': {0: True}}
Inherited Members
- sqlglot.parser.Parser
- Parser
- NO_PAREN_FUNCTIONS
- NESTED_TYPE_TOKENS
- ENUM_TYPE_TOKENS
- TYPE_TOKENS
- SUBQUERY_PREDICATES
- RESERVED_KEYWORDS
- DB_CREATABLES
- CREATABLES
- ID_VAR_TOKENS
- INTERVAL_VARS
- TABLE_ALIAS_TOKENS
- COMMENT_TABLE_ALIAS_TOKENS
- UPDATE_ALIAS_TOKENS
- TRIM_TYPES
- FUNC_TOKENS
- CONJUNCTION
- EQUALITY
- COMPARISON
- BITWISE
- TERM
- FACTOR
- TIMESTAMPS
- SET_OPERATIONS
- JOIN_METHODS
- JOIN_SIDES
- JOIN_KINDS
- LAMBDAS
- COLUMN_OPERATORS
- EXPRESSION_PARSERS
- UNARY_PARSERS
- PRIMARY_PARSERS
- PLACEHOLDER_PARSERS
- RANGE_PARSERS
- PROPERTY_PARSERS
- CONSTRAINT_PARSERS
- ALTER_PARSERS
- SCHEMA_UNNAMED_CONSTRAINTS
- NO_PAREN_FUNCTION_PARSERS
- FUNCTIONS_WITH_ALIASED_ARGS
- FUNCTION_PARSERS
- QUERY_MODIFIER_PARSERS
- SET_PARSERS
- SHOW_PARSERS
- TYPE_LITERAL_PARSERS
- MODIFIABLES
- DDL_SELECT_TOKENS
- PRE_VOLATILE_TOKENS
- TRANSACTION_KIND
- TRANSACTION_CHARACTERISTICS
- INSERT_ALTERNATIVES
- CLONE_KINDS
- TABLE_INDEX_HINT_TOKENS
- WINDOW_ALIAS_TOKENS
- WINDOW_BEFORE_PAREN_TOKENS
- WINDOW_SIDES
- ADD_CONSTRAINT_TOKENS
- STRICT_CAST
- PREFIXED_PIVOT_COLUMNS
- IDENTIFY_PIVOT_STRINGS
- INDEX_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- STRICT_STRING_CONCAT
- FORMAT_MAPPING
- error_level
- error_message_context
- max_errors
- reset
- parse
- parse_into
- check_errors
- raise_error
- expression
- validate_expression
- errors
- sql
522 class Generator(generator.Generator): 523 LOCKING_READS_SUPPORTED = True 524 LIMIT_IS_TOP = True 525 QUERY_HINTS = False 526 RETURNING_END = False 527 528 TYPE_MAPPING = { 529 **generator.Generator.TYPE_MAPPING, 530 exp.DataType.Type.INT: "INTEGER", 531 exp.DataType.Type.DECIMAL: "NUMERIC", 532 exp.DataType.Type.DATETIME: "DATETIME2", 533 exp.DataType.Type.VARIANT: "SQL_VARIANT", 534 } 535 536 TRANSFORMS = { 537 **generator.Generator.TRANSFORMS, 538 exp.DateAdd: generate_date_delta_with_unit_sql, 539 exp.DateDiff: generate_date_delta_with_unit_sql, 540 exp.CurrentDate: rename_func("GETDATE"), 541 exp.CurrentTimestamp: rename_func("GETDATE"), 542 exp.Extract: rename_func("DATEPART"), 543 exp.GroupConcat: _string_agg_sql, 544 exp.If: rename_func("IIF"), 545 exp.Max: max_or_greatest, 546 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), 547 exp.Min: min_or_least, 548 exp.NumberToStr: _format_sql, 549 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 550 exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), 551 exp.SHA2: lambda self, e: self.func( 552 "HASHBYTES", 553 exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), 554 e.this, 555 ), 556 exp.TimeToStr: _format_sql, 557 } 558 559 TRANSFORMS.pop(exp.ReturnsProperty) 560 561 PROPERTIES_LOCATION = { 562 **generator.Generator.PROPERTIES_LOCATION, 563 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, 564 } 565 566 LIMIT_FETCH = "FETCH" 567 568 def offset_sql(self, expression: exp.Offset) -> str: 569 return f"{super().offset_sql(expression)} ROWS" 570 571 def systemtime_sql(self, expression: exp.SystemTime) -> str: 572 kind = expression.args["kind"] 573 if kind == "ALL": 574 return "FOR SYSTEM_TIME ALL" 575 576 start = self.sql(expression, "this") 577 if kind == "AS OF": 578 return f"FOR SYSTEM_TIME AS OF {start}" 579 580 end = self.sql(expression, "expression") 581 if kind == "FROM": 582 return f"FOR SYSTEM_TIME FROM {start} TO {end}" 583 if kind == "BETWEEN": 584 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" 585 586 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" 587 588 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: 589 table = expression.args.get("table") 590 table = f"{table} " if table else "" 591 return f"RETURNS {table}{self.sql(expression, 'this')}" 592 593 def returning_sql(self, expression: exp.Returning) -> str: 594 into = self.sql(expression, "into") 595 into = self.seg(f"INTO {into}") if into else "" 596 return f"{self.seg('OUTPUT')} {self.expressions(expression, flat=True)}{into}" 597 598 def transaction_sql(self, expression: exp.Transaction) -> str: 599 this = self.sql(expression, "this") 600 this = f" {this}" if this else "" 601 mark = self.sql(expression, "mark") 602 mark = f" WITH MARK {mark}" if mark else "" 603 return f"BEGIN TRANSACTION{this}{mark}" 604 605 def commit_sql(self, expression: exp.Commit) -> str: 606 this = self.sql(expression, "this") 607 this = f" {this}" if this else "" 608 durability = expression.args.get("durability") 609 durability = ( 610 f" WITH (DELAYED_DURABILITY = {'ON' if durability else 'OFF'})" 611 if durability is not None 612 else "" 613 ) 614 return f"COMMIT TRANSACTION{this}{durability}" 615 616 def rollback_sql(self, expression: exp.Rollback) -> str: 617 this = self.sql(expression, "this") 618 this = f" {this}" if this else "" 619 return f"ROLLBACK TRANSACTION{this}"
Generator converts a given syntax tree to the corresponding SQL string.
Arguments:
- pretty: Whether or not to format the produced SQL string. Default: False.
- identify: Determines when an identifier should be quoted. Possible values are: False (default): Never quote, except in cases where it's mandatory by the dialect. True or 'always': Always quote. 'safe': Only quote identifiers that are case insensitive.
- normalize: Whether or not to normalize identifiers to lowercase. Default: False.
- pad: Determines the pad size in a formatted string. Default: 2.
- indent: Determines the indentation size in a formatted string. Default: 2.
- normalize_functions: Whether or not to normalize all function names. Possible values are: "upper" or True (default): Convert names to uppercase. "lower": Convert names to lowercase. False: Disables function name normalization.
- unsupported_level: Determines the generator's behavior when it encounters unsupported expressions. Default ErrorLevel.WARN.
- max_unsupported: Maximum number of unsupported messages to include in a raised UnsupportedError. This is only relevant if unsupported_level is ErrorLevel.RAISE. Default: 3
- leading_comma: Determines whether or not the comma is leading or trailing in select expressions. This is only relevant when generating in pretty mode. Default: False
- max_text_width: The max number of characters in a segment before creating new lines in pretty mode. The default is on the smaller end because the length only represents a segment and not the true line length. Default: 80
- comments: Whether or not to preserve comments in the output SQL code. Default: True
TYPE_MAPPING =
{<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.INT: 'INT'>: 'INTEGER', <Type.DECIMAL: 'DECIMAL'>: 'NUMERIC', <Type.DATETIME: 'DATETIME'>: 'DATETIME2', <Type.VARIANT: 'VARIANT'>: 'SQL_VARIANT'}
TRANSFORMS =
{<class 'sqlglot.expressions.DateAdd'>: <function generate_date_delta_with_unit_sql>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CheckColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LanguageProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LocationProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LogProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.MaterializedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateDiff'>: <function generate_date_delta_with_unit_sql>, <class 'sqlglot.expressions.CurrentDate'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentTimestamp'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Extract'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.GroupConcat'>: <function _string_agg_sql>, <class 'sqlglot.expressions.If'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.MD5'>: <function TSQL.Generator.<lambda>>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.NumberToStr'>: <function _format_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.SHA'>: <function TSQL.Generator.<lambda>>, <class 'sqlglot.expressions.SHA2'>: <function TSQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function _format_sql>}
PROPERTIES_LOCATION =
{<class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Cluster'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DictRange'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.PrimaryKey'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Property'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.ReturnsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatDelimitedProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatSerdeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>}
571 def systemtime_sql(self, expression: exp.SystemTime) -> str: 572 kind = expression.args["kind"] 573 if kind == "ALL": 574 return "FOR SYSTEM_TIME ALL" 575 576 start = self.sql(expression, "this") 577 if kind == "AS OF": 578 return f"FOR SYSTEM_TIME AS OF {start}" 579 580 end = self.sql(expression, "expression") 581 if kind == "FROM": 582 return f"FOR SYSTEM_TIME FROM {start} TO {end}" 583 if kind == "BETWEEN": 584 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" 585 586 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
605 def commit_sql(self, expression: exp.Commit) -> str: 606 this = self.sql(expression, "this") 607 this = f" {this}" if this else "" 608 durability = expression.args.get("durability") 609 durability = ( 610 f" WITH (DELAYED_DURABILITY = {'ON' if durability else 'OFF'})" 611 if durability is not None 612 else "" 613 ) 614 return f"COMMIT TRANSACTION{this}{durability}"
INVERSE_TIME_MAPPING: Dict[str, str] =
{'%Y': 'yyyy', '%q': 'quarter', '%j': 'dayofyear', '%d': 'dd', '%W': 'dw', '%h': 'hour', '%I': 'hh', '%M': 'mm', '%S': 'ss', '%-S': 's', '%f': 'S', '%m': 'MM', '%-M': 'm', '%y': 'yy', '%B': 'MMMM', '%b': 'MMM', '%-m': 'M', '%-d': 'd', '%H': 'HH', '%-H': 'H', '%-I': 'h'}
INVERSE_TIME_TRIE: Dict =
{'%': {'Y': {0: True}, 'q': {0: True}, 'j': {0: True}, 'd': {0: True}, 'W': {0: True}, 'h': {0: True}, 'I': {0: True}, 'M': {0: True}, 'S': {0: True}, '-': {'S': {0: True}, 'M': {0: True}, 'm': {0: True}, 'd': {0: True}, 'H': {0: True}, 'I': {0: True}}, 'f': {0: True}, 'm': {0: True}, 'y': {0: True}, 'B': {0: True}, 'b': {0: True}, 'H': {0: True}}}
@classmethod
def
can_identify(text: str, identify: str | bool = 'safe') -> bool:
248 @classmethod 249 def can_identify(cls, text: str, identify: str | bool = "safe") -> bool: 250 """Checks if text can be identified given an identify option. 251 252 Args: 253 text: The text to check. 254 identify: 255 "always" or `True`: Always returns true. 256 "safe": True if the identifier is case-insensitive. 257 258 Returns: 259 Whether or not the given text can be identified. 260 """ 261 if identify is True or identify == "always": 262 return True 263 264 if identify == "safe": 265 return not cls.case_sensitive(text) 266 267 return False
Checks if text can be identified given an identify option.
Arguments:
- text: The text to check.
- identify: "always" or
True
: Always returns true. "safe": True if the identifier is case-insensitive.
Returns:
Whether or not the given text can be identified.
Inherited Members
- sqlglot.generator.Generator
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