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sqlglot.dialects.mysql

   1from __future__ import annotations
   2
   3import typing as t
   4
   5from sqlglot import exp, generator, parser, tokens, transforms
   6from sqlglot.dialects.dialect import (
   7    Dialect,
   8    NormalizationStrategy,
   9    arrow_json_extract_sql,
  10    date_add_interval_sql,
  11    datestrtodate_sql,
  12    build_formatted_time,
  13    isnull_to_is_null,
  14    locate_to_strposition,
  15    max_or_greatest,
  16    min_or_least,
  17    no_ilike_sql,
  18    no_paren_current_date_sql,
  19    no_pivot_sql,
  20    no_tablesample_sql,
  21    no_trycast_sql,
  22    build_date_delta,
  23    build_date_delta_with_interval,
  24    rename_func,
  25    strposition_to_locate_sql,
  26    unit_to_var,
  27    trim_sql,
  28    timestrtotime_sql,
  29)
  30from sqlglot.helper import seq_get
  31from sqlglot.tokens import TokenType
  32
  33
  34def _show_parser(*args: t.Any, **kwargs: t.Any) -> t.Callable[[MySQL.Parser], exp.Show]:
  35    def _parse(self: MySQL.Parser) -> exp.Show:
  36        return self._parse_show_mysql(*args, **kwargs)
  37
  38    return _parse
  39
  40
  41def _date_trunc_sql(self: MySQL.Generator, expression: exp.DateTrunc) -> str:
  42    expr = self.sql(expression, "this")
  43    unit = expression.text("unit").upper()
  44
  45    if unit == "WEEK":
  46        concat = f"CONCAT(YEAR({expr}), ' ', WEEK({expr}, 1), ' 1')"
  47        date_format = "%Y %u %w"
  48    elif unit == "MONTH":
  49        concat = f"CONCAT(YEAR({expr}), ' ', MONTH({expr}), ' 1')"
  50        date_format = "%Y %c %e"
  51    elif unit == "QUARTER":
  52        concat = f"CONCAT(YEAR({expr}), ' ', QUARTER({expr}) * 3 - 2, ' 1')"
  53        date_format = "%Y %c %e"
  54    elif unit == "YEAR":
  55        concat = f"CONCAT(YEAR({expr}), ' 1 1')"
  56        date_format = "%Y %c %e"
  57    else:
  58        if unit != "DAY":
  59            self.unsupported(f"Unexpected interval unit: {unit}")
  60        return self.func("DATE", expr)
  61
  62    return self.func("STR_TO_DATE", concat, f"'{date_format}'")
  63
  64
  65# All specifiers for time parts (as opposed to date parts)
  66# https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format
  67TIME_SPECIFIERS = {"f", "H", "h", "I", "i", "k", "l", "p", "r", "S", "s", "T"}
  68
  69
  70def _has_time_specifier(date_format: str) -> bool:
  71    i = 0
  72    length = len(date_format)
  73
  74    while i < length:
  75        if date_format[i] == "%":
  76            i += 1
  77            if i < length and date_format[i] in TIME_SPECIFIERS:
  78                return True
  79        i += 1
  80    return False
  81
  82
  83def _str_to_date(args: t.List) -> exp.StrToDate | exp.StrToTime:
  84    mysql_date_format = seq_get(args, 1)
  85    date_format = MySQL.format_time(mysql_date_format)
  86    this = seq_get(args, 0)
  87
  88    if mysql_date_format and _has_time_specifier(mysql_date_format.name):
  89        return exp.StrToTime(this=this, format=date_format)
  90
  91    return exp.StrToDate(this=this, format=date_format)
  92
  93
  94def _str_to_date_sql(
  95    self: MySQL.Generator, expression: exp.StrToDate | exp.StrToTime | exp.TsOrDsToDate
  96) -> str:
  97    return self.func("STR_TO_DATE", expression.this, self.format_time(expression))
  98
  99
 100def _unix_to_time_sql(self: MySQL.Generator, expression: exp.UnixToTime) -> str:
 101    scale = expression.args.get("scale")
 102    timestamp = expression.this
 103
 104    if scale in (None, exp.UnixToTime.SECONDS):
 105        return self.func("FROM_UNIXTIME", timestamp, self.format_time(expression))
 106
 107    return self.func(
 108        "FROM_UNIXTIME",
 109        exp.Div(this=timestamp, expression=exp.func("POW", 10, scale)),
 110        self.format_time(expression),
 111    )
 112
 113
 114def date_add_sql(
 115    kind: str,
 116) -> t.Callable[[generator.Generator, exp.Expression], str]:
 117    def func(self: generator.Generator, expression: exp.Expression) -> str:
 118        return self.func(
 119            f"DATE_{kind}",
 120            expression.this,
 121            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
 122        )
 123
 124    return func
 125
 126
 127def _ts_or_ds_to_date_sql(self: MySQL.Generator, expression: exp.TsOrDsToDate) -> str:
 128    time_format = expression.args.get("format")
 129    return _str_to_date_sql(self, expression) if time_format else self.func("DATE", expression.this)
 130
 131
 132def _remove_ts_or_ds_to_date(
 133    to_sql: t.Optional[t.Callable[[MySQL.Generator, exp.Expression], str]] = None,
 134    args: t.Tuple[str, ...] = ("this",),
 135) -> t.Callable[[MySQL.Generator, exp.Func], str]:
 136    def func(self: MySQL.Generator, expression: exp.Func) -> str:
 137        for arg_key in args:
 138            arg = expression.args.get(arg_key)
 139            if isinstance(arg, exp.TsOrDsToDate) and not arg.args.get("format"):
 140                expression.set(arg_key, arg.this)
 141
 142        return to_sql(self, expression) if to_sql else self.function_fallback_sql(expression)
 143
 144    return func
 145
 146
 147class MySQL(Dialect):
 148    PROMOTE_TO_INFERRED_DATETIME_TYPE = True
 149
 150    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
 151    IDENTIFIERS_CAN_START_WITH_DIGIT = True
 152
 153    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
 154    # behavior on Linux systems. For MacOS and Windows systems, one can override this
 155    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
 156    #
 157    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
 158    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
 159
 160    TIME_FORMAT = "'%Y-%m-%d %T'"
 161    DPIPE_IS_STRING_CONCAT = False
 162    SUPPORTS_USER_DEFINED_TYPES = False
 163    SUPPORTS_SEMI_ANTI_JOIN = False
 164    SAFE_DIVISION = True
 165
 166    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
 167    TIME_MAPPING = {
 168        "%M": "%B",
 169        "%c": "%-m",
 170        "%e": "%-d",
 171        "%h": "%I",
 172        "%i": "%M",
 173        "%s": "%S",
 174        "%u": "%W",
 175        "%k": "%-H",
 176        "%l": "%-I",
 177        "%T": "%H:%M:%S",
 178        "%W": "%A",
 179    }
 180
 181    class Tokenizer(tokens.Tokenizer):
 182        QUOTES = ["'", '"']
 183        COMMENTS = ["--", "#", ("/*", "*/")]
 184        IDENTIFIERS = ["`"]
 185        STRING_ESCAPES = ["'", '"', "\\"]
 186        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
 187        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
 188
 189        KEYWORDS = {
 190            **tokens.Tokenizer.KEYWORDS,
 191            "CHARSET": TokenType.CHARACTER_SET,
 192            # The DESCRIBE and EXPLAIN statements are synonyms.
 193            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
 194            "EXPLAIN": TokenType.DESCRIBE,
 195            "FORCE": TokenType.FORCE,
 196            "IGNORE": TokenType.IGNORE,
 197            "KEY": TokenType.KEY,
 198            "LOCK TABLES": TokenType.COMMAND,
 199            "LONGBLOB": TokenType.LONGBLOB,
 200            "LONGTEXT": TokenType.LONGTEXT,
 201            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
 202            "TINYBLOB": TokenType.TINYBLOB,
 203            "TINYTEXT": TokenType.TINYTEXT,
 204            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
 205            "MEDIUMINT": TokenType.MEDIUMINT,
 206            "MEMBER OF": TokenType.MEMBER_OF,
 207            "SEPARATOR": TokenType.SEPARATOR,
 208            "SERIAL": TokenType.SERIAL,
 209            "START": TokenType.BEGIN,
 210            "SIGNED": TokenType.BIGINT,
 211            "SIGNED INTEGER": TokenType.BIGINT,
 212            "UNLOCK TABLES": TokenType.COMMAND,
 213            "UNSIGNED": TokenType.UBIGINT,
 214            "UNSIGNED INTEGER": TokenType.UBIGINT,
 215            "YEAR": TokenType.YEAR,
 216            "_ARMSCII8": TokenType.INTRODUCER,
 217            "_ASCII": TokenType.INTRODUCER,
 218            "_BIG5": TokenType.INTRODUCER,
 219            "_BINARY": TokenType.INTRODUCER,
 220            "_CP1250": TokenType.INTRODUCER,
 221            "_CP1251": TokenType.INTRODUCER,
 222            "_CP1256": TokenType.INTRODUCER,
 223            "_CP1257": TokenType.INTRODUCER,
 224            "_CP850": TokenType.INTRODUCER,
 225            "_CP852": TokenType.INTRODUCER,
 226            "_CP866": TokenType.INTRODUCER,
 227            "_CP932": TokenType.INTRODUCER,
 228            "_DEC8": TokenType.INTRODUCER,
 229            "_EUCJPMS": TokenType.INTRODUCER,
 230            "_EUCKR": TokenType.INTRODUCER,
 231            "_GB18030": TokenType.INTRODUCER,
 232            "_GB2312": TokenType.INTRODUCER,
 233            "_GBK": TokenType.INTRODUCER,
 234            "_GEOSTD8": TokenType.INTRODUCER,
 235            "_GREEK": TokenType.INTRODUCER,
 236            "_HEBREW": TokenType.INTRODUCER,
 237            "_HP8": TokenType.INTRODUCER,
 238            "_KEYBCS2": TokenType.INTRODUCER,
 239            "_KOI8R": TokenType.INTRODUCER,
 240            "_KOI8U": TokenType.INTRODUCER,
 241            "_LATIN1": TokenType.INTRODUCER,
 242            "_LATIN2": TokenType.INTRODUCER,
 243            "_LATIN5": TokenType.INTRODUCER,
 244            "_LATIN7": TokenType.INTRODUCER,
 245            "_MACCE": TokenType.INTRODUCER,
 246            "_MACROMAN": TokenType.INTRODUCER,
 247            "_SJIS": TokenType.INTRODUCER,
 248            "_SWE7": TokenType.INTRODUCER,
 249            "_TIS620": TokenType.INTRODUCER,
 250            "_UCS2": TokenType.INTRODUCER,
 251            "_UJIS": TokenType.INTRODUCER,
 252            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
 253            "_UTF8": TokenType.INTRODUCER,
 254            "_UTF16": TokenType.INTRODUCER,
 255            "_UTF16LE": TokenType.INTRODUCER,
 256            "_UTF32": TokenType.INTRODUCER,
 257            "_UTF8MB3": TokenType.INTRODUCER,
 258            "_UTF8MB4": TokenType.INTRODUCER,
 259            "@@": TokenType.SESSION_PARAMETER,
 260        }
 261
 262        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
 263
 264    class Parser(parser.Parser):
 265        FUNC_TOKENS = {
 266            *parser.Parser.FUNC_TOKENS,
 267            TokenType.DATABASE,
 268            TokenType.SCHEMA,
 269            TokenType.VALUES,
 270        }
 271
 272        CONJUNCTION = {
 273            **parser.Parser.CONJUNCTION,
 274            TokenType.DAMP: exp.And,
 275            TokenType.XOR: exp.Xor,
 276        }
 277
 278        DISJUNCTION = {
 279            **parser.Parser.DISJUNCTION,
 280            TokenType.DPIPE: exp.Or,
 281        }
 282
 283        TABLE_ALIAS_TOKENS = (
 284            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
 285        )
 286
 287        RANGE_PARSERS = {
 288            **parser.Parser.RANGE_PARSERS,
 289            TokenType.MEMBER_OF: lambda self, this: self.expression(
 290                exp.JSONArrayContains,
 291                this=this,
 292                expression=self._parse_wrapped(self._parse_expression),
 293            ),
 294        }
 295
 296        FUNCTIONS = {
 297            **parser.Parser.FUNCTIONS,
 298            "CHAR_LENGTH": exp.Length.from_arg_list,
 299            "CHARACTER_LENGTH": exp.Length.from_arg_list,
 300            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
 301                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
 302            ),
 303            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
 304            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
 305            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
 306            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
 307            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 308            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 309            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 310            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 311            "FORMAT": exp.NumberToStr.from_arg_list,
 312            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
 313            "ISNULL": isnull_to_is_null,
 314            "LOCATE": locate_to_strposition,
 315            "MAKETIME": exp.TimeFromParts.from_arg_list,
 316            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 317            "MONTHNAME": lambda args: exp.TimeToStr(
 318                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
 319                format=exp.Literal.string("%B"),
 320            ),
 321            "STR_TO_DATE": _str_to_date,
 322            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
 323            "TO_DAYS": lambda args: exp.paren(
 324                exp.DateDiff(
 325                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
 326                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
 327                    unit=exp.var("DAY"),
 328                )
 329                + 1
 330            ),
 331            "WEEK": lambda args: exp.Week(
 332                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
 333            ),
 334            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 335            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 336        }
 337
 338        FUNCTION_PARSERS = {
 339            **parser.Parser.FUNCTION_PARSERS,
 340            "CHAR": lambda self: self.expression(
 341                exp.Chr,
 342                expressions=self._parse_csv(self._parse_assignment),
 343                charset=self._match(TokenType.USING) and self._parse_var(),
 344            ),
 345            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
 346            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
 347            "VALUES": lambda self: self.expression(
 348                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
 349            ),
 350            "JSON_VALUE": lambda self: self._parse_json_value(),
 351        }
 352
 353        STATEMENT_PARSERS = {
 354            **parser.Parser.STATEMENT_PARSERS,
 355            TokenType.SHOW: lambda self: self._parse_show(),
 356        }
 357
 358        SHOW_PARSERS = {
 359            "BINARY LOGS": _show_parser("BINARY LOGS"),
 360            "MASTER LOGS": _show_parser("BINARY LOGS"),
 361            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
 362            "CHARACTER SET": _show_parser("CHARACTER SET"),
 363            "CHARSET": _show_parser("CHARACTER SET"),
 364            "COLLATION": _show_parser("COLLATION"),
 365            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
 366            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
 367            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
 368            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
 369            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
 370            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
 371            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
 372            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
 373            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
 374            "DATABASES": _show_parser("DATABASES"),
 375            "SCHEMAS": _show_parser("DATABASES"),
 376            "ENGINE": _show_parser("ENGINE", target=True),
 377            "STORAGE ENGINES": _show_parser("ENGINES"),
 378            "ENGINES": _show_parser("ENGINES"),
 379            "ERRORS": _show_parser("ERRORS"),
 380            "EVENTS": _show_parser("EVENTS"),
 381            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
 382            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
 383            "GRANTS": _show_parser("GRANTS", target="FOR"),
 384            "INDEX": _show_parser("INDEX", target="FROM"),
 385            "MASTER STATUS": _show_parser("MASTER STATUS"),
 386            "OPEN TABLES": _show_parser("OPEN TABLES"),
 387            "PLUGINS": _show_parser("PLUGINS"),
 388            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
 389            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
 390            "PRIVILEGES": _show_parser("PRIVILEGES"),
 391            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
 392            "PROCESSLIST": _show_parser("PROCESSLIST"),
 393            "PROFILE": _show_parser("PROFILE"),
 394            "PROFILES": _show_parser("PROFILES"),
 395            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
 396            "REPLICAS": _show_parser("REPLICAS"),
 397            "SLAVE HOSTS": _show_parser("REPLICAS"),
 398            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
 399            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
 400            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
 401            "SESSION STATUS": _show_parser("STATUS"),
 402            "STATUS": _show_parser("STATUS"),
 403            "TABLE STATUS": _show_parser("TABLE STATUS"),
 404            "FULL TABLES": _show_parser("TABLES", full=True),
 405            "TABLES": _show_parser("TABLES"),
 406            "TRIGGERS": _show_parser("TRIGGERS"),
 407            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
 408            "SESSION VARIABLES": _show_parser("VARIABLES"),
 409            "VARIABLES": _show_parser("VARIABLES"),
 410            "WARNINGS": _show_parser("WARNINGS"),
 411        }
 412
 413        PROPERTY_PARSERS = {
 414            **parser.Parser.PROPERTY_PARSERS,
 415            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
 416        }
 417
 418        SET_PARSERS = {
 419            **parser.Parser.SET_PARSERS,
 420            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
 421            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
 422            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
 423            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
 424            "NAMES": lambda self: self._parse_set_item_names(),
 425        }
 426
 427        CONSTRAINT_PARSERS = {
 428            **parser.Parser.CONSTRAINT_PARSERS,
 429            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
 430            "INDEX": lambda self: self._parse_index_constraint(),
 431            "KEY": lambda self: self._parse_index_constraint(),
 432            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
 433        }
 434
 435        ALTER_PARSERS = {
 436            **parser.Parser.ALTER_PARSERS,
 437            "MODIFY": lambda self: self._parse_alter_table_alter(),
 438        }
 439
 440        SCHEMA_UNNAMED_CONSTRAINTS = {
 441            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
 442            "FULLTEXT",
 443            "INDEX",
 444            "KEY",
 445            "SPATIAL",
 446        }
 447
 448        PROFILE_TYPES: parser.OPTIONS_TYPE = {
 449            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
 450            "BLOCK": ("IO",),
 451            "CONTEXT": ("SWITCHES",),
 452            "PAGE": ("FAULTS",),
 453        }
 454
 455        TYPE_TOKENS = {
 456            *parser.Parser.TYPE_TOKENS,
 457            TokenType.SET,
 458        }
 459
 460        ENUM_TYPE_TOKENS = {
 461            *parser.Parser.ENUM_TYPE_TOKENS,
 462            TokenType.SET,
 463        }
 464
 465        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
 466        OPERATION_MODIFIERS = {
 467            "HIGH_PRIORITY",
 468            "STRAIGHT_JOIN",
 469            "SQL_SMALL_RESULT",
 470            "SQL_BIG_RESULT",
 471            "SQL_BUFFER_RESULT",
 472            "SQL_NO_CACHE",
 473            "SQL_CALC_FOUND_ROWS",
 474        }
 475
 476        LOG_DEFAULTS_TO_LN = True
 477        STRING_ALIASES = True
 478        VALUES_FOLLOWED_BY_PAREN = False
 479        SUPPORTS_PARTITION_SELECTION = True
 480
 481        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
 482            this = self._parse_id_var()
 483            if not self._match(TokenType.L_PAREN):
 484                return this
 485
 486            expression = self._parse_number()
 487            self._match_r_paren()
 488            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
 489
 490        def _parse_index_constraint(
 491            self, kind: t.Optional[str] = None
 492        ) -> exp.IndexColumnConstraint:
 493            if kind:
 494                self._match_texts(("INDEX", "KEY"))
 495
 496            this = self._parse_id_var(any_token=False)
 497            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
 498            expressions = self._parse_wrapped_csv(self._parse_ordered)
 499
 500            options = []
 501            while True:
 502                if self._match_text_seq("KEY_BLOCK_SIZE"):
 503                    self._match(TokenType.EQ)
 504                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
 505                elif self._match(TokenType.USING):
 506                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
 507                elif self._match_text_seq("WITH", "PARSER"):
 508                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
 509                elif self._match(TokenType.COMMENT):
 510                    opt = exp.IndexConstraintOption(comment=self._parse_string())
 511                elif self._match_text_seq("VISIBLE"):
 512                    opt = exp.IndexConstraintOption(visible=True)
 513                elif self._match_text_seq("INVISIBLE"):
 514                    opt = exp.IndexConstraintOption(visible=False)
 515                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
 516                    self._match(TokenType.EQ)
 517                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
 518                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
 519                    self._match(TokenType.EQ)
 520                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
 521                else:
 522                    opt = None
 523
 524                if not opt:
 525                    break
 526
 527                options.append(opt)
 528
 529            return self.expression(
 530                exp.IndexColumnConstraint,
 531                this=this,
 532                expressions=expressions,
 533                kind=kind,
 534                index_type=index_type,
 535                options=options,
 536            )
 537
 538        def _parse_show_mysql(
 539            self,
 540            this: str,
 541            target: bool | str = False,
 542            full: t.Optional[bool] = None,
 543            global_: t.Optional[bool] = None,
 544        ) -> exp.Show:
 545            if target:
 546                if isinstance(target, str):
 547                    self._match_text_seq(target)
 548                target_id = self._parse_id_var()
 549            else:
 550                target_id = None
 551
 552            log = self._parse_string() if self._match_text_seq("IN") else None
 553
 554            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
 555                position = self._parse_number() if self._match_text_seq("FROM") else None
 556                db = None
 557            else:
 558                position = None
 559                db = None
 560
 561                if self._match(TokenType.FROM):
 562                    db = self._parse_id_var()
 563                elif self._match(TokenType.DOT):
 564                    db = target_id
 565                    target_id = self._parse_id_var()
 566
 567            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
 568
 569            like = self._parse_string() if self._match_text_seq("LIKE") else None
 570            where = self._parse_where()
 571
 572            if this == "PROFILE":
 573                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
 574                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
 575                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
 576                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
 577            else:
 578                types, query = None, None
 579                offset, limit = self._parse_oldstyle_limit()
 580
 581            mutex = True if self._match_text_seq("MUTEX") else None
 582            mutex = False if self._match_text_seq("STATUS") else mutex
 583
 584            return self.expression(
 585                exp.Show,
 586                this=this,
 587                target=target_id,
 588                full=full,
 589                log=log,
 590                position=position,
 591                db=db,
 592                channel=channel,
 593                like=like,
 594                where=where,
 595                types=types,
 596                query=query,
 597                offset=offset,
 598                limit=limit,
 599                mutex=mutex,
 600                **{"global": global_},  # type: ignore
 601            )
 602
 603        def _parse_oldstyle_limit(
 604            self,
 605        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
 606            limit = None
 607            offset = None
 608            if self._match_text_seq("LIMIT"):
 609                parts = self._parse_csv(self._parse_number)
 610                if len(parts) == 1:
 611                    limit = parts[0]
 612                elif len(parts) == 2:
 613                    limit = parts[1]
 614                    offset = parts[0]
 615
 616            return offset, limit
 617
 618        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
 619            this = self._parse_string() or self._parse_unquoted_field()
 620            return self.expression(exp.SetItem, this=this, kind=kind)
 621
 622        def _parse_set_item_names(self) -> exp.Expression:
 623            charset = self._parse_string() or self._parse_unquoted_field()
 624            if self._match_text_seq("COLLATE"):
 625                collate = self._parse_string() or self._parse_unquoted_field()
 626            else:
 627                collate = None
 628
 629            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
 630
 631        def _parse_type(
 632            self, parse_interval: bool = True, fallback_to_identifier: bool = False
 633        ) -> t.Optional[exp.Expression]:
 634            # mysql binary is special and can work anywhere, even in order by operations
 635            # it operates like a no paren func
 636            if self._match(TokenType.BINARY, advance=False):
 637                data_type = self._parse_types(check_func=True, allow_identifiers=False)
 638
 639                if isinstance(data_type, exp.DataType):
 640                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
 641
 642            return super()._parse_type(
 643                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
 644            )
 645
 646        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
 647            def concat_exprs(
 648                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
 649            ) -> exp.Expression:
 650                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
 651                    concat_exprs = [
 652                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
 653                    ]
 654                    node.set("expressions", concat_exprs)
 655                    return node
 656                if len(exprs) == 1:
 657                    return exprs[0]
 658                return self.expression(exp.Concat, expressions=args, safe=True)
 659
 660            args = self._parse_csv(self._parse_lambda)
 661
 662            if args:
 663                order = args[-1] if isinstance(args[-1], exp.Order) else None
 664
 665                if order:
 666                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
 667                    # remove 'expr' from exp.Order and add it back to args
 668                    args[-1] = order.this
 669                    order.set("this", concat_exprs(order.this, args))
 670
 671                this = order or concat_exprs(args[0], args)
 672            else:
 673                this = None
 674
 675            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
 676
 677            return self.expression(exp.GroupConcat, this=this, separator=separator)
 678
 679        def _parse_json_value(self) -> exp.JSONValue:
 680            this = self._parse_bitwise()
 681            self._match(TokenType.COMMA)
 682            path = self._parse_bitwise()
 683
 684            returning = self._match(TokenType.RETURNING) and self._parse_type()
 685
 686            return self.expression(
 687                exp.JSONValue,
 688                this=this,
 689                path=self.dialect.to_json_path(path),
 690                returning=returning,
 691                on_condition=self._parse_on_condition(),
 692            )
 693
 694    class Generator(generator.Generator):
 695        INTERVAL_ALLOWS_PLURAL_FORM = False
 696        LOCKING_READS_SUPPORTED = True
 697        NULL_ORDERING_SUPPORTED = None
 698        JOIN_HINTS = False
 699        TABLE_HINTS = True
 700        DUPLICATE_KEY_UPDATE_WITH_SET = False
 701        QUERY_HINT_SEP = " "
 702        VALUES_AS_TABLE = False
 703        NVL2_SUPPORTED = False
 704        LAST_DAY_SUPPORTS_DATE_PART = False
 705        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
 706        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
 707        JSON_KEY_VALUE_PAIR_SEP = ","
 708        SUPPORTS_TO_NUMBER = False
 709        PARSE_JSON_NAME: t.Optional[str] = None
 710        PAD_FILL_PATTERN_IS_REQUIRED = True
 711        WRAP_DERIVED_VALUES = False
 712        VARCHAR_REQUIRES_SIZE = True
 713        SUPPORTS_MEDIAN = False
 714
 715        TRANSFORMS = {
 716            **generator.Generator.TRANSFORMS,
 717            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
 718            exp.CurrentDate: no_paren_current_date_sql,
 719            exp.DateDiff: _remove_ts_or_ds_to_date(
 720                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
 721            ),
 722            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
 723            exp.DateStrToDate: datestrtodate_sql,
 724            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
 725            exp.DateTrunc: _date_trunc_sql,
 726            exp.Day: _remove_ts_or_ds_to_date(),
 727            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
 728            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
 729            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
 730            exp.GroupConcat: lambda self,
 731            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
 732            exp.ILike: no_ilike_sql,
 733            exp.JSONExtractScalar: arrow_json_extract_sql,
 734            exp.Length: rename_func("CHAR_LENGTH"),
 735            exp.Max: max_or_greatest,
 736            exp.Min: min_or_least,
 737            exp.Month: _remove_ts_or_ds_to_date(),
 738            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
 739            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
 740            exp.NumberToStr: rename_func("FORMAT"),
 741            exp.Pivot: no_pivot_sql,
 742            exp.Select: transforms.preprocess(
 743                [
 744                    transforms.eliminate_distinct_on,
 745                    transforms.eliminate_semi_and_anti_joins,
 746                    transforms.eliminate_qualify,
 747                    transforms.eliminate_full_outer_join,
 748                    transforms.unnest_generate_date_array_using_recursive_cte,
 749                ]
 750            ),
 751            exp.StrPosition: strposition_to_locate_sql,
 752            exp.StrToDate: _str_to_date_sql,
 753            exp.StrToTime: _str_to_date_sql,
 754            exp.Stuff: rename_func("INSERT"),
 755            exp.TableSample: no_tablesample_sql,
 756            exp.TimeFromParts: rename_func("MAKETIME"),
 757            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
 758            exp.TimestampDiff: lambda self, e: self.func(
 759                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
 760            ),
 761            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
 762            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
 763            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
 764                self,
 765                e,
 766                include_precision=not e.args.get("zone"),
 767            ),
 768            exp.TimeToStr: _remove_ts_or_ds_to_date(
 769                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
 770            ),
 771            exp.Trim: trim_sql,
 772            exp.TryCast: no_trycast_sql,
 773            exp.TsOrDsAdd: date_add_sql("ADD"),
 774            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
 775            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
 776            exp.UnixToTime: _unix_to_time_sql,
 777            exp.Week: _remove_ts_or_ds_to_date(),
 778            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
 779            exp.Year: _remove_ts_or_ds_to_date(),
 780        }
 781
 782        UNSIGNED_TYPE_MAPPING = {
 783            exp.DataType.Type.UBIGINT: "BIGINT",
 784            exp.DataType.Type.UINT: "INT",
 785            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
 786            exp.DataType.Type.USMALLINT: "SMALLINT",
 787            exp.DataType.Type.UTINYINT: "TINYINT",
 788            exp.DataType.Type.UDECIMAL: "DECIMAL",
 789        }
 790
 791        TIMESTAMP_TYPE_MAPPING = {
 792            exp.DataType.Type.DATETIME2: "DATETIME",
 793            exp.DataType.Type.SMALLDATETIME: "DATETIME",
 794            exp.DataType.Type.TIMESTAMP: "DATETIME",
 795            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
 796            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
 797        }
 798
 799        TYPE_MAPPING = {
 800            **generator.Generator.TYPE_MAPPING,
 801            **UNSIGNED_TYPE_MAPPING,
 802            **TIMESTAMP_TYPE_MAPPING,
 803        }
 804
 805        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
 806        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
 807        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
 808        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
 809        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
 810        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
 811
 812        PROPERTIES_LOCATION = {
 813            **generator.Generator.PROPERTIES_LOCATION,
 814            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
 815            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
 816        }
 817
 818        LIMIT_FETCH = "LIMIT"
 819
 820        LIMIT_ONLY_LITERALS = True
 821
 822        CHAR_CAST_MAPPING = dict.fromkeys(
 823            (
 824                exp.DataType.Type.LONGTEXT,
 825                exp.DataType.Type.LONGBLOB,
 826                exp.DataType.Type.MEDIUMBLOB,
 827                exp.DataType.Type.MEDIUMTEXT,
 828                exp.DataType.Type.TEXT,
 829                exp.DataType.Type.TINYBLOB,
 830                exp.DataType.Type.TINYTEXT,
 831                exp.DataType.Type.VARCHAR,
 832            ),
 833            "CHAR",
 834        )
 835        SIGNED_CAST_MAPPING = dict.fromkeys(
 836            (
 837                exp.DataType.Type.BIGINT,
 838                exp.DataType.Type.BOOLEAN,
 839                exp.DataType.Type.INT,
 840                exp.DataType.Type.SMALLINT,
 841                exp.DataType.Type.TINYINT,
 842                exp.DataType.Type.MEDIUMINT,
 843            ),
 844            "SIGNED",
 845        )
 846
 847        # MySQL doesn't support many datatypes in cast.
 848        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
 849        CAST_MAPPING = {
 850            **CHAR_CAST_MAPPING,
 851            **SIGNED_CAST_MAPPING,
 852            exp.DataType.Type.UBIGINT: "UNSIGNED",
 853        }
 854
 855        TIMESTAMP_FUNC_TYPES = {
 856            exp.DataType.Type.TIMESTAMPTZ,
 857            exp.DataType.Type.TIMESTAMPLTZ,
 858        }
 859
 860        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
 861        RESERVED_KEYWORDS = {
 862            "accessible",
 863            "add",
 864            "all",
 865            "alter",
 866            "analyze",
 867            "and",
 868            "as",
 869            "asc",
 870            "asensitive",
 871            "before",
 872            "between",
 873            "bigint",
 874            "binary",
 875            "blob",
 876            "both",
 877            "by",
 878            "call",
 879            "cascade",
 880            "case",
 881            "change",
 882            "char",
 883            "character",
 884            "check",
 885            "collate",
 886            "column",
 887            "condition",
 888            "constraint",
 889            "continue",
 890            "convert",
 891            "create",
 892            "cross",
 893            "cube",
 894            "cume_dist",
 895            "current_date",
 896            "current_time",
 897            "current_timestamp",
 898            "current_user",
 899            "cursor",
 900            "database",
 901            "databases",
 902            "day_hour",
 903            "day_microsecond",
 904            "day_minute",
 905            "day_second",
 906            "dec",
 907            "decimal",
 908            "declare",
 909            "default",
 910            "delayed",
 911            "delete",
 912            "dense_rank",
 913            "desc",
 914            "describe",
 915            "deterministic",
 916            "distinct",
 917            "distinctrow",
 918            "div",
 919            "double",
 920            "drop",
 921            "dual",
 922            "each",
 923            "else",
 924            "elseif",
 925            "empty",
 926            "enclosed",
 927            "escaped",
 928            "except",
 929            "exists",
 930            "exit",
 931            "explain",
 932            "false",
 933            "fetch",
 934            "first_value",
 935            "float",
 936            "float4",
 937            "float8",
 938            "for",
 939            "force",
 940            "foreign",
 941            "from",
 942            "fulltext",
 943            "function",
 944            "generated",
 945            "get",
 946            "grant",
 947            "group",
 948            "grouping",
 949            "groups",
 950            "having",
 951            "high_priority",
 952            "hour_microsecond",
 953            "hour_minute",
 954            "hour_second",
 955            "if",
 956            "ignore",
 957            "in",
 958            "index",
 959            "infile",
 960            "inner",
 961            "inout",
 962            "insensitive",
 963            "insert",
 964            "int",
 965            "int1",
 966            "int2",
 967            "int3",
 968            "int4",
 969            "int8",
 970            "integer",
 971            "intersect",
 972            "interval",
 973            "into",
 974            "io_after_gtids",
 975            "io_before_gtids",
 976            "is",
 977            "iterate",
 978            "join",
 979            "json_table",
 980            "key",
 981            "keys",
 982            "kill",
 983            "lag",
 984            "last_value",
 985            "lateral",
 986            "lead",
 987            "leading",
 988            "leave",
 989            "left",
 990            "like",
 991            "limit",
 992            "linear",
 993            "lines",
 994            "load",
 995            "localtime",
 996            "localtimestamp",
 997            "lock",
 998            "long",
 999            "longblob",
1000            "longtext",
1001            "loop",
1002            "low_priority",
1003            "master_bind",
1004            "master_ssl_verify_server_cert",
1005            "match",
1006            "maxvalue",
1007            "mediumblob",
1008            "mediumint",
1009            "mediumtext",
1010            "middleint",
1011            "minute_microsecond",
1012            "minute_second",
1013            "mod",
1014            "modifies",
1015            "natural",
1016            "not",
1017            "no_write_to_binlog",
1018            "nth_value",
1019            "ntile",
1020            "null",
1021            "numeric",
1022            "of",
1023            "on",
1024            "optimize",
1025            "optimizer_costs",
1026            "option",
1027            "optionally",
1028            "or",
1029            "order",
1030            "out",
1031            "outer",
1032            "outfile",
1033            "over",
1034            "partition",
1035            "percent_rank",
1036            "precision",
1037            "primary",
1038            "procedure",
1039            "purge",
1040            "range",
1041            "rank",
1042            "read",
1043            "reads",
1044            "read_write",
1045            "real",
1046            "recursive",
1047            "references",
1048            "regexp",
1049            "release",
1050            "rename",
1051            "repeat",
1052            "replace",
1053            "require",
1054            "resignal",
1055            "restrict",
1056            "return",
1057            "revoke",
1058            "right",
1059            "rlike",
1060            "row",
1061            "rows",
1062            "row_number",
1063            "schema",
1064            "schemas",
1065            "second_microsecond",
1066            "select",
1067            "sensitive",
1068            "separator",
1069            "set",
1070            "show",
1071            "signal",
1072            "smallint",
1073            "spatial",
1074            "specific",
1075            "sql",
1076            "sqlexception",
1077            "sqlstate",
1078            "sqlwarning",
1079            "sql_big_result",
1080            "sql_calc_found_rows",
1081            "sql_small_result",
1082            "ssl",
1083            "starting",
1084            "stored",
1085            "straight_join",
1086            "system",
1087            "table",
1088            "terminated",
1089            "then",
1090            "tinyblob",
1091            "tinyint",
1092            "tinytext",
1093            "to",
1094            "trailing",
1095            "trigger",
1096            "true",
1097            "undo",
1098            "union",
1099            "unique",
1100            "unlock",
1101            "unsigned",
1102            "update",
1103            "usage",
1104            "use",
1105            "using",
1106            "utc_date",
1107            "utc_time",
1108            "utc_timestamp",
1109            "values",
1110            "varbinary",
1111            "varchar",
1112            "varcharacter",
1113            "varying",
1114            "virtual",
1115            "when",
1116            "where",
1117            "while",
1118            "window",
1119            "with",
1120            "write",
1121            "xor",
1122            "year_month",
1123            "zerofill",
1124        }
1125
1126        def array_sql(self, expression: exp.Array) -> str:
1127            self.unsupported("Arrays are not supported by MySQL")
1128            return self.function_fallback_sql(expression)
1129
1130        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
1131            self.unsupported("Array operations are not supported by MySQL")
1132            return self.function_fallback_sql(expression)
1133
1134        def dpipe_sql(self, expression: exp.DPipe) -> str:
1135            return self.func("CONCAT", *expression.flatten())
1136
1137        def extract_sql(self, expression: exp.Extract) -> str:
1138            unit = expression.name
1139            if unit and unit.lower() == "epoch":
1140                return self.func("UNIX_TIMESTAMP", expression.expression)
1141
1142            return super().extract_sql(expression)
1143
1144        def datatype_sql(self, expression: exp.DataType) -> str:
1145            if (
1146                self.VARCHAR_REQUIRES_SIZE
1147                and expression.is_type(exp.DataType.Type.VARCHAR)
1148                and not expression.expressions
1149            ):
1150                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
1151                return "TEXT"
1152
1153            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
1154            result = super().datatype_sql(expression)
1155            if expression.this in self.UNSIGNED_TYPE_MAPPING:
1156                result = f"{result} UNSIGNED"
1157
1158            return result
1159
1160        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
1161            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
1162
1163        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
1164            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
1165                return self.func("TIMESTAMP", expression.this)
1166
1167            to = self.CAST_MAPPING.get(expression.to.this)
1168
1169            if to:
1170                expression.to.set("this", to)
1171            return super().cast_sql(expression)
1172
1173        def show_sql(self, expression: exp.Show) -> str:
1174            this = f" {expression.name}"
1175            full = " FULL" if expression.args.get("full") else ""
1176            global_ = " GLOBAL" if expression.args.get("global") else ""
1177
1178            target = self.sql(expression, "target")
1179            target = f" {target}" if target else ""
1180            if expression.name in ("COLUMNS", "INDEX"):
1181                target = f" FROM{target}"
1182            elif expression.name == "GRANTS":
1183                target = f" FOR{target}"
1184
1185            db = self._prefixed_sql("FROM", expression, "db")
1186
1187            like = self._prefixed_sql("LIKE", expression, "like")
1188            where = self.sql(expression, "where")
1189
1190            types = self.expressions(expression, key="types")
1191            types = f" {types}" if types else types
1192            query = self._prefixed_sql("FOR QUERY", expression, "query")
1193
1194            if expression.name == "PROFILE":
1195                offset = self._prefixed_sql("OFFSET", expression, "offset")
1196                limit = self._prefixed_sql("LIMIT", expression, "limit")
1197            else:
1198                offset = ""
1199                limit = self._oldstyle_limit_sql(expression)
1200
1201            log = self._prefixed_sql("IN", expression, "log")
1202            position = self._prefixed_sql("FROM", expression, "position")
1203
1204            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
1205
1206            if expression.name == "ENGINE":
1207                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
1208            else:
1209                mutex_or_status = ""
1210
1211            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
1212
1213        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
1214            dtype = self.sql(expression, "dtype")
1215            if not dtype:
1216                return super().altercolumn_sql(expression)
1217
1218            this = self.sql(expression, "this")
1219            return f"MODIFY COLUMN {this} {dtype}"
1220
1221        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
1222            sql = self.sql(expression, arg)
1223            return f" {prefix} {sql}" if sql else ""
1224
1225        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
1226            limit = self.sql(expression, "limit")
1227            offset = self.sql(expression, "offset")
1228            if limit:
1229                limit_offset = f"{offset}, {limit}" if offset else limit
1230                return f" LIMIT {limit_offset}"
1231            return ""
1232
1233        def chr_sql(self, expression: exp.Chr) -> str:
1234            this = self.expressions(sqls=[expression.this] + expression.expressions)
1235            charset = expression.args.get("charset")
1236            using = f" USING {self.sql(charset)}" if charset else ""
1237            return f"CHAR({this}{using})"
1238
1239        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
1240            unit = expression.args.get("unit")
1241
1242            # Pick an old-enough date to avoid negative timestamp diffs
1243            start_ts = "'0000-01-01 00:00:00'"
1244
1245            # Source: https://stackoverflow.com/a/32955740
1246            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
1247            interval = exp.Interval(this=timestamp_diff, unit=unit)
1248            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
1249
1250            return self.sql(dateadd)
1251
1252        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
1253            from_tz = expression.args.get("source_tz")
1254            to_tz = expression.args.get("target_tz")
1255            dt = expression.args.get("timestamp")
1256
1257            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
1258
1259        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
1260            self.unsupported("AT TIME ZONE is not supported by MySQL")
1261            return self.sql(expression.this)
TIME_SPECIFIERS = {'p', 'r', 'l', 's', 'i', 'h', 'k', 'S', 'f', 'T', 'I', 'H'}
def date_add_sql( kind: str) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:
115def date_add_sql(
116    kind: str,
117) -> t.Callable[[generator.Generator, exp.Expression], str]:
118    def func(self: generator.Generator, expression: exp.Expression) -> str:
119        return self.func(
120            f"DATE_{kind}",
121            expression.this,
122            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
123        )
124
125    return func
class MySQL(sqlglot.dialects.dialect.Dialect):
 148class MySQL(Dialect):
 149    PROMOTE_TO_INFERRED_DATETIME_TYPE = True
 150
 151    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
 152    IDENTIFIERS_CAN_START_WITH_DIGIT = True
 153
 154    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
 155    # behavior on Linux systems. For MacOS and Windows systems, one can override this
 156    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
 157    #
 158    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
 159    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
 160
 161    TIME_FORMAT = "'%Y-%m-%d %T'"
 162    DPIPE_IS_STRING_CONCAT = False
 163    SUPPORTS_USER_DEFINED_TYPES = False
 164    SUPPORTS_SEMI_ANTI_JOIN = False
 165    SAFE_DIVISION = True
 166
 167    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
 168    TIME_MAPPING = {
 169        "%M": "%B",
 170        "%c": "%-m",
 171        "%e": "%-d",
 172        "%h": "%I",
 173        "%i": "%M",
 174        "%s": "%S",
 175        "%u": "%W",
 176        "%k": "%-H",
 177        "%l": "%-I",
 178        "%T": "%H:%M:%S",
 179        "%W": "%A",
 180    }
 181
 182    class Tokenizer(tokens.Tokenizer):
 183        QUOTES = ["'", '"']
 184        COMMENTS = ["--", "#", ("/*", "*/")]
 185        IDENTIFIERS = ["`"]
 186        STRING_ESCAPES = ["'", '"', "\\"]
 187        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
 188        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
 189
 190        KEYWORDS = {
 191            **tokens.Tokenizer.KEYWORDS,
 192            "CHARSET": TokenType.CHARACTER_SET,
 193            # The DESCRIBE and EXPLAIN statements are synonyms.
 194            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
 195            "EXPLAIN": TokenType.DESCRIBE,
 196            "FORCE": TokenType.FORCE,
 197            "IGNORE": TokenType.IGNORE,
 198            "KEY": TokenType.KEY,
 199            "LOCK TABLES": TokenType.COMMAND,
 200            "LONGBLOB": TokenType.LONGBLOB,
 201            "LONGTEXT": TokenType.LONGTEXT,
 202            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
 203            "TINYBLOB": TokenType.TINYBLOB,
 204            "TINYTEXT": TokenType.TINYTEXT,
 205            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
 206            "MEDIUMINT": TokenType.MEDIUMINT,
 207            "MEMBER OF": TokenType.MEMBER_OF,
 208            "SEPARATOR": TokenType.SEPARATOR,
 209            "SERIAL": TokenType.SERIAL,
 210            "START": TokenType.BEGIN,
 211            "SIGNED": TokenType.BIGINT,
 212            "SIGNED INTEGER": TokenType.BIGINT,
 213            "UNLOCK TABLES": TokenType.COMMAND,
 214            "UNSIGNED": TokenType.UBIGINT,
 215            "UNSIGNED INTEGER": TokenType.UBIGINT,
 216            "YEAR": TokenType.YEAR,
 217            "_ARMSCII8": TokenType.INTRODUCER,
 218            "_ASCII": TokenType.INTRODUCER,
 219            "_BIG5": TokenType.INTRODUCER,
 220            "_BINARY": TokenType.INTRODUCER,
 221            "_CP1250": TokenType.INTRODUCER,
 222            "_CP1251": TokenType.INTRODUCER,
 223            "_CP1256": TokenType.INTRODUCER,
 224            "_CP1257": TokenType.INTRODUCER,
 225            "_CP850": TokenType.INTRODUCER,
 226            "_CP852": TokenType.INTRODUCER,
 227            "_CP866": TokenType.INTRODUCER,
 228            "_CP932": TokenType.INTRODUCER,
 229            "_DEC8": TokenType.INTRODUCER,
 230            "_EUCJPMS": TokenType.INTRODUCER,
 231            "_EUCKR": TokenType.INTRODUCER,
 232            "_GB18030": TokenType.INTRODUCER,
 233            "_GB2312": TokenType.INTRODUCER,
 234            "_GBK": TokenType.INTRODUCER,
 235            "_GEOSTD8": TokenType.INTRODUCER,
 236            "_GREEK": TokenType.INTRODUCER,
 237            "_HEBREW": TokenType.INTRODUCER,
 238            "_HP8": TokenType.INTRODUCER,
 239            "_KEYBCS2": TokenType.INTRODUCER,
 240            "_KOI8R": TokenType.INTRODUCER,
 241            "_KOI8U": TokenType.INTRODUCER,
 242            "_LATIN1": TokenType.INTRODUCER,
 243            "_LATIN2": TokenType.INTRODUCER,
 244            "_LATIN5": TokenType.INTRODUCER,
 245            "_LATIN7": TokenType.INTRODUCER,
 246            "_MACCE": TokenType.INTRODUCER,
 247            "_MACROMAN": TokenType.INTRODUCER,
 248            "_SJIS": TokenType.INTRODUCER,
 249            "_SWE7": TokenType.INTRODUCER,
 250            "_TIS620": TokenType.INTRODUCER,
 251            "_UCS2": TokenType.INTRODUCER,
 252            "_UJIS": TokenType.INTRODUCER,
 253            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
 254            "_UTF8": TokenType.INTRODUCER,
 255            "_UTF16": TokenType.INTRODUCER,
 256            "_UTF16LE": TokenType.INTRODUCER,
 257            "_UTF32": TokenType.INTRODUCER,
 258            "_UTF8MB3": TokenType.INTRODUCER,
 259            "_UTF8MB4": TokenType.INTRODUCER,
 260            "@@": TokenType.SESSION_PARAMETER,
 261        }
 262
 263        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
 264
 265    class Parser(parser.Parser):
 266        FUNC_TOKENS = {
 267            *parser.Parser.FUNC_TOKENS,
 268            TokenType.DATABASE,
 269            TokenType.SCHEMA,
 270            TokenType.VALUES,
 271        }
 272
 273        CONJUNCTION = {
 274            **parser.Parser.CONJUNCTION,
 275            TokenType.DAMP: exp.And,
 276            TokenType.XOR: exp.Xor,
 277        }
 278
 279        DISJUNCTION = {
 280            **parser.Parser.DISJUNCTION,
 281            TokenType.DPIPE: exp.Or,
 282        }
 283
 284        TABLE_ALIAS_TOKENS = (
 285            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
 286        )
 287
 288        RANGE_PARSERS = {
 289            **parser.Parser.RANGE_PARSERS,
 290            TokenType.MEMBER_OF: lambda self, this: self.expression(
 291                exp.JSONArrayContains,
 292                this=this,
 293                expression=self._parse_wrapped(self._parse_expression),
 294            ),
 295        }
 296
 297        FUNCTIONS = {
 298            **parser.Parser.FUNCTIONS,
 299            "CHAR_LENGTH": exp.Length.from_arg_list,
 300            "CHARACTER_LENGTH": exp.Length.from_arg_list,
 301            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
 302                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
 303            ),
 304            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
 305            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
 306            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
 307            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
 308            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 309            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 310            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 311            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 312            "FORMAT": exp.NumberToStr.from_arg_list,
 313            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
 314            "ISNULL": isnull_to_is_null,
 315            "LOCATE": locate_to_strposition,
 316            "MAKETIME": exp.TimeFromParts.from_arg_list,
 317            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 318            "MONTHNAME": lambda args: exp.TimeToStr(
 319                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
 320                format=exp.Literal.string("%B"),
 321            ),
 322            "STR_TO_DATE": _str_to_date,
 323            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
 324            "TO_DAYS": lambda args: exp.paren(
 325                exp.DateDiff(
 326                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
 327                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
 328                    unit=exp.var("DAY"),
 329                )
 330                + 1
 331            ),
 332            "WEEK": lambda args: exp.Week(
 333                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
 334            ),
 335            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 336            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
 337        }
 338
 339        FUNCTION_PARSERS = {
 340            **parser.Parser.FUNCTION_PARSERS,
 341            "CHAR": lambda self: self.expression(
 342                exp.Chr,
 343                expressions=self._parse_csv(self._parse_assignment),
 344                charset=self._match(TokenType.USING) and self._parse_var(),
 345            ),
 346            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
 347            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
 348            "VALUES": lambda self: self.expression(
 349                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
 350            ),
 351            "JSON_VALUE": lambda self: self._parse_json_value(),
 352        }
 353
 354        STATEMENT_PARSERS = {
 355            **parser.Parser.STATEMENT_PARSERS,
 356            TokenType.SHOW: lambda self: self._parse_show(),
 357        }
 358
 359        SHOW_PARSERS = {
 360            "BINARY LOGS": _show_parser("BINARY LOGS"),
 361            "MASTER LOGS": _show_parser("BINARY LOGS"),
 362            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
 363            "CHARACTER SET": _show_parser("CHARACTER SET"),
 364            "CHARSET": _show_parser("CHARACTER SET"),
 365            "COLLATION": _show_parser("COLLATION"),
 366            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
 367            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
 368            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
 369            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
 370            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
 371            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
 372            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
 373            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
 374            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
 375            "DATABASES": _show_parser("DATABASES"),
 376            "SCHEMAS": _show_parser("DATABASES"),
 377            "ENGINE": _show_parser("ENGINE", target=True),
 378            "STORAGE ENGINES": _show_parser("ENGINES"),
 379            "ENGINES": _show_parser("ENGINES"),
 380            "ERRORS": _show_parser("ERRORS"),
 381            "EVENTS": _show_parser("EVENTS"),
 382            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
 383            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
 384            "GRANTS": _show_parser("GRANTS", target="FOR"),
 385            "INDEX": _show_parser("INDEX", target="FROM"),
 386            "MASTER STATUS": _show_parser("MASTER STATUS"),
 387            "OPEN TABLES": _show_parser("OPEN TABLES"),
 388            "PLUGINS": _show_parser("PLUGINS"),
 389            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
 390            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
 391            "PRIVILEGES": _show_parser("PRIVILEGES"),
 392            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
 393            "PROCESSLIST": _show_parser("PROCESSLIST"),
 394            "PROFILE": _show_parser("PROFILE"),
 395            "PROFILES": _show_parser("PROFILES"),
 396            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
 397            "REPLICAS": _show_parser("REPLICAS"),
 398            "SLAVE HOSTS": _show_parser("REPLICAS"),
 399            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
 400            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
 401            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
 402            "SESSION STATUS": _show_parser("STATUS"),
 403            "STATUS": _show_parser("STATUS"),
 404            "TABLE STATUS": _show_parser("TABLE STATUS"),
 405            "FULL TABLES": _show_parser("TABLES", full=True),
 406            "TABLES": _show_parser("TABLES"),
 407            "TRIGGERS": _show_parser("TRIGGERS"),
 408            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
 409            "SESSION VARIABLES": _show_parser("VARIABLES"),
 410            "VARIABLES": _show_parser("VARIABLES"),
 411            "WARNINGS": _show_parser("WARNINGS"),
 412        }
 413
 414        PROPERTY_PARSERS = {
 415            **parser.Parser.PROPERTY_PARSERS,
 416            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
 417        }
 418
 419        SET_PARSERS = {
 420            **parser.Parser.SET_PARSERS,
 421            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
 422            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
 423            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
 424            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
 425            "NAMES": lambda self: self._parse_set_item_names(),
 426        }
 427
 428        CONSTRAINT_PARSERS = {
 429            **parser.Parser.CONSTRAINT_PARSERS,
 430            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
 431            "INDEX": lambda self: self._parse_index_constraint(),
 432            "KEY": lambda self: self._parse_index_constraint(),
 433            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
 434        }
 435
 436        ALTER_PARSERS = {
 437            **parser.Parser.ALTER_PARSERS,
 438            "MODIFY": lambda self: self._parse_alter_table_alter(),
 439        }
 440
 441        SCHEMA_UNNAMED_CONSTRAINTS = {
 442            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
 443            "FULLTEXT",
 444            "INDEX",
 445            "KEY",
 446            "SPATIAL",
 447        }
 448
 449        PROFILE_TYPES: parser.OPTIONS_TYPE = {
 450            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
 451            "BLOCK": ("IO",),
 452            "CONTEXT": ("SWITCHES",),
 453            "PAGE": ("FAULTS",),
 454        }
 455
 456        TYPE_TOKENS = {
 457            *parser.Parser.TYPE_TOKENS,
 458            TokenType.SET,
 459        }
 460
 461        ENUM_TYPE_TOKENS = {
 462            *parser.Parser.ENUM_TYPE_TOKENS,
 463            TokenType.SET,
 464        }
 465
 466        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
 467        OPERATION_MODIFIERS = {
 468            "HIGH_PRIORITY",
 469            "STRAIGHT_JOIN",
 470            "SQL_SMALL_RESULT",
 471            "SQL_BIG_RESULT",
 472            "SQL_BUFFER_RESULT",
 473            "SQL_NO_CACHE",
 474            "SQL_CALC_FOUND_ROWS",
 475        }
 476
 477        LOG_DEFAULTS_TO_LN = True
 478        STRING_ALIASES = True
 479        VALUES_FOLLOWED_BY_PAREN = False
 480        SUPPORTS_PARTITION_SELECTION = True
 481
 482        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
 483            this = self._parse_id_var()
 484            if not self._match(TokenType.L_PAREN):
 485                return this
 486
 487            expression = self._parse_number()
 488            self._match_r_paren()
 489            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
 490
 491        def _parse_index_constraint(
 492            self, kind: t.Optional[str] = None
 493        ) -> exp.IndexColumnConstraint:
 494            if kind:
 495                self._match_texts(("INDEX", "KEY"))
 496
 497            this = self._parse_id_var(any_token=False)
 498            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
 499            expressions = self._parse_wrapped_csv(self._parse_ordered)
 500
 501            options = []
 502            while True:
 503                if self._match_text_seq("KEY_BLOCK_SIZE"):
 504                    self._match(TokenType.EQ)
 505                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
 506                elif self._match(TokenType.USING):
 507                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
 508                elif self._match_text_seq("WITH", "PARSER"):
 509                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
 510                elif self._match(TokenType.COMMENT):
 511                    opt = exp.IndexConstraintOption(comment=self._parse_string())
 512                elif self._match_text_seq("VISIBLE"):
 513                    opt = exp.IndexConstraintOption(visible=True)
 514                elif self._match_text_seq("INVISIBLE"):
 515                    opt = exp.IndexConstraintOption(visible=False)
 516                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
 517                    self._match(TokenType.EQ)
 518                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
 519                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
 520                    self._match(TokenType.EQ)
 521                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
 522                else:
 523                    opt = None
 524
 525                if not opt:
 526                    break
 527
 528                options.append(opt)
 529
 530            return self.expression(
 531                exp.IndexColumnConstraint,
 532                this=this,
 533                expressions=expressions,
 534                kind=kind,
 535                index_type=index_type,
 536                options=options,
 537            )
 538
 539        def _parse_show_mysql(
 540            self,
 541            this: str,
 542            target: bool | str = False,
 543            full: t.Optional[bool] = None,
 544            global_: t.Optional[bool] = None,
 545        ) -> exp.Show:
 546            if target:
 547                if isinstance(target, str):
 548                    self._match_text_seq(target)
 549                target_id = self._parse_id_var()
 550            else:
 551                target_id = None
 552
 553            log = self._parse_string() if self._match_text_seq("IN") else None
 554
 555            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
 556                position = self._parse_number() if self._match_text_seq("FROM") else None
 557                db = None
 558            else:
 559                position = None
 560                db = None
 561
 562                if self._match(TokenType.FROM):
 563                    db = self._parse_id_var()
 564                elif self._match(TokenType.DOT):
 565                    db = target_id
 566                    target_id = self._parse_id_var()
 567
 568            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
 569
 570            like = self._parse_string() if self._match_text_seq("LIKE") else None
 571            where = self._parse_where()
 572
 573            if this == "PROFILE":
 574                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
 575                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
 576                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
 577                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
 578            else:
 579                types, query = None, None
 580                offset, limit = self._parse_oldstyle_limit()
 581
 582            mutex = True if self._match_text_seq("MUTEX") else None
 583            mutex = False if self._match_text_seq("STATUS") else mutex
 584
 585            return self.expression(
 586                exp.Show,
 587                this=this,
 588                target=target_id,
 589                full=full,
 590                log=log,
 591                position=position,
 592                db=db,
 593                channel=channel,
 594                like=like,
 595                where=where,
 596                types=types,
 597                query=query,
 598                offset=offset,
 599                limit=limit,
 600                mutex=mutex,
 601                **{"global": global_},  # type: ignore
 602            )
 603
 604        def _parse_oldstyle_limit(
 605            self,
 606        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
 607            limit = None
 608            offset = None
 609            if self._match_text_seq("LIMIT"):
 610                parts = self._parse_csv(self._parse_number)
 611                if len(parts) == 1:
 612                    limit = parts[0]
 613                elif len(parts) == 2:
 614                    limit = parts[1]
 615                    offset = parts[0]
 616
 617            return offset, limit
 618
 619        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
 620            this = self._parse_string() or self._parse_unquoted_field()
 621            return self.expression(exp.SetItem, this=this, kind=kind)
 622
 623        def _parse_set_item_names(self) -> exp.Expression:
 624            charset = self._parse_string() or self._parse_unquoted_field()
 625            if self._match_text_seq("COLLATE"):
 626                collate = self._parse_string() or self._parse_unquoted_field()
 627            else:
 628                collate = None
 629
 630            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
 631
 632        def _parse_type(
 633            self, parse_interval: bool = True, fallback_to_identifier: bool = False
 634        ) -> t.Optional[exp.Expression]:
 635            # mysql binary is special and can work anywhere, even in order by operations
 636            # it operates like a no paren func
 637            if self._match(TokenType.BINARY, advance=False):
 638                data_type = self._parse_types(check_func=True, allow_identifiers=False)
 639
 640                if isinstance(data_type, exp.DataType):
 641                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
 642
 643            return super()._parse_type(
 644                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
 645            )
 646
 647        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
 648            def concat_exprs(
 649                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
 650            ) -> exp.Expression:
 651                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
 652                    concat_exprs = [
 653                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
 654                    ]
 655                    node.set("expressions", concat_exprs)
 656                    return node
 657                if len(exprs) == 1:
 658                    return exprs[0]
 659                return self.expression(exp.Concat, expressions=args, safe=True)
 660
 661            args = self._parse_csv(self._parse_lambda)
 662
 663            if args:
 664                order = args[-1] if isinstance(args[-1], exp.Order) else None
 665
 666                if order:
 667                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
 668                    # remove 'expr' from exp.Order and add it back to args
 669                    args[-1] = order.this
 670                    order.set("this", concat_exprs(order.this, args))
 671
 672                this = order or concat_exprs(args[0], args)
 673            else:
 674                this = None
 675
 676            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
 677
 678            return self.expression(exp.GroupConcat, this=this, separator=separator)
 679
 680        def _parse_json_value(self) -> exp.JSONValue:
 681            this = self._parse_bitwise()
 682            self._match(TokenType.COMMA)
 683            path = self._parse_bitwise()
 684
 685            returning = self._match(TokenType.RETURNING) and self._parse_type()
 686
 687            return self.expression(
 688                exp.JSONValue,
 689                this=this,
 690                path=self.dialect.to_json_path(path),
 691                returning=returning,
 692                on_condition=self._parse_on_condition(),
 693            )
 694
 695    class Generator(generator.Generator):
 696        INTERVAL_ALLOWS_PLURAL_FORM = False
 697        LOCKING_READS_SUPPORTED = True
 698        NULL_ORDERING_SUPPORTED = None
 699        JOIN_HINTS = False
 700        TABLE_HINTS = True
 701        DUPLICATE_KEY_UPDATE_WITH_SET = False
 702        QUERY_HINT_SEP = " "
 703        VALUES_AS_TABLE = False
 704        NVL2_SUPPORTED = False
 705        LAST_DAY_SUPPORTS_DATE_PART = False
 706        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
 707        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
 708        JSON_KEY_VALUE_PAIR_SEP = ","
 709        SUPPORTS_TO_NUMBER = False
 710        PARSE_JSON_NAME: t.Optional[str] = None
 711        PAD_FILL_PATTERN_IS_REQUIRED = True
 712        WRAP_DERIVED_VALUES = False
 713        VARCHAR_REQUIRES_SIZE = True
 714        SUPPORTS_MEDIAN = False
 715
 716        TRANSFORMS = {
 717            **generator.Generator.TRANSFORMS,
 718            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
 719            exp.CurrentDate: no_paren_current_date_sql,
 720            exp.DateDiff: _remove_ts_or_ds_to_date(
 721                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
 722            ),
 723            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
 724            exp.DateStrToDate: datestrtodate_sql,
 725            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
 726            exp.DateTrunc: _date_trunc_sql,
 727            exp.Day: _remove_ts_or_ds_to_date(),
 728            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
 729            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
 730            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
 731            exp.GroupConcat: lambda self,
 732            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
 733            exp.ILike: no_ilike_sql,
 734            exp.JSONExtractScalar: arrow_json_extract_sql,
 735            exp.Length: rename_func("CHAR_LENGTH"),
 736            exp.Max: max_or_greatest,
 737            exp.Min: min_or_least,
 738            exp.Month: _remove_ts_or_ds_to_date(),
 739            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
 740            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
 741            exp.NumberToStr: rename_func("FORMAT"),
 742            exp.Pivot: no_pivot_sql,
 743            exp.Select: transforms.preprocess(
 744                [
 745                    transforms.eliminate_distinct_on,
 746                    transforms.eliminate_semi_and_anti_joins,
 747                    transforms.eliminate_qualify,
 748                    transforms.eliminate_full_outer_join,
 749                    transforms.unnest_generate_date_array_using_recursive_cte,
 750                ]
 751            ),
 752            exp.StrPosition: strposition_to_locate_sql,
 753            exp.StrToDate: _str_to_date_sql,
 754            exp.StrToTime: _str_to_date_sql,
 755            exp.Stuff: rename_func("INSERT"),
 756            exp.TableSample: no_tablesample_sql,
 757            exp.TimeFromParts: rename_func("MAKETIME"),
 758            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
 759            exp.TimestampDiff: lambda self, e: self.func(
 760                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
 761            ),
 762            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
 763            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
 764            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
 765                self,
 766                e,
 767                include_precision=not e.args.get("zone"),
 768            ),
 769            exp.TimeToStr: _remove_ts_or_ds_to_date(
 770                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
 771            ),
 772            exp.Trim: trim_sql,
 773            exp.TryCast: no_trycast_sql,
 774            exp.TsOrDsAdd: date_add_sql("ADD"),
 775            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
 776            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
 777            exp.UnixToTime: _unix_to_time_sql,
 778            exp.Week: _remove_ts_or_ds_to_date(),
 779            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
 780            exp.Year: _remove_ts_or_ds_to_date(),
 781        }
 782
 783        UNSIGNED_TYPE_MAPPING = {
 784            exp.DataType.Type.UBIGINT: "BIGINT",
 785            exp.DataType.Type.UINT: "INT",
 786            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
 787            exp.DataType.Type.USMALLINT: "SMALLINT",
 788            exp.DataType.Type.UTINYINT: "TINYINT",
 789            exp.DataType.Type.UDECIMAL: "DECIMAL",
 790        }
 791
 792        TIMESTAMP_TYPE_MAPPING = {
 793            exp.DataType.Type.DATETIME2: "DATETIME",
 794            exp.DataType.Type.SMALLDATETIME: "DATETIME",
 795            exp.DataType.Type.TIMESTAMP: "DATETIME",
 796            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
 797            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
 798        }
 799
 800        TYPE_MAPPING = {
 801            **generator.Generator.TYPE_MAPPING,
 802            **UNSIGNED_TYPE_MAPPING,
 803            **TIMESTAMP_TYPE_MAPPING,
 804        }
 805
 806        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
 807        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
 808        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
 809        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
 810        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
 811        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
 812
 813        PROPERTIES_LOCATION = {
 814            **generator.Generator.PROPERTIES_LOCATION,
 815            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
 816            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
 817        }
 818
 819        LIMIT_FETCH = "LIMIT"
 820
 821        LIMIT_ONLY_LITERALS = True
 822
 823        CHAR_CAST_MAPPING = dict.fromkeys(
 824            (
 825                exp.DataType.Type.LONGTEXT,
 826                exp.DataType.Type.LONGBLOB,
 827                exp.DataType.Type.MEDIUMBLOB,
 828                exp.DataType.Type.MEDIUMTEXT,
 829                exp.DataType.Type.TEXT,
 830                exp.DataType.Type.TINYBLOB,
 831                exp.DataType.Type.TINYTEXT,
 832                exp.DataType.Type.VARCHAR,
 833            ),
 834            "CHAR",
 835        )
 836        SIGNED_CAST_MAPPING = dict.fromkeys(
 837            (
 838                exp.DataType.Type.BIGINT,
 839                exp.DataType.Type.BOOLEAN,
 840                exp.DataType.Type.INT,
 841                exp.DataType.Type.SMALLINT,
 842                exp.DataType.Type.TINYINT,
 843                exp.DataType.Type.MEDIUMINT,
 844            ),
 845            "SIGNED",
 846        )
 847
 848        # MySQL doesn't support many datatypes in cast.
 849        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
 850        CAST_MAPPING = {
 851            **CHAR_CAST_MAPPING,
 852            **SIGNED_CAST_MAPPING,
 853            exp.DataType.Type.UBIGINT: "UNSIGNED",
 854        }
 855
 856        TIMESTAMP_FUNC_TYPES = {
 857            exp.DataType.Type.TIMESTAMPTZ,
 858            exp.DataType.Type.TIMESTAMPLTZ,
 859        }
 860
 861        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
 862        RESERVED_KEYWORDS = {
 863            "accessible",
 864            "add",
 865            "all",
 866            "alter",
 867            "analyze",
 868            "and",
 869            "as",
 870            "asc",
 871            "asensitive",
 872            "before",
 873            "between",
 874            "bigint",
 875            "binary",
 876            "blob",
 877            "both",
 878            "by",
 879            "call",
 880            "cascade",
 881            "case",
 882            "change",
 883            "char",
 884            "character",
 885            "check",
 886            "collate",
 887            "column",
 888            "condition",
 889            "constraint",
 890            "continue",
 891            "convert",
 892            "create",
 893            "cross",
 894            "cube",
 895            "cume_dist",
 896            "current_date",
 897            "current_time",
 898            "current_timestamp",
 899            "current_user",
 900            "cursor",
 901            "database",
 902            "databases",
 903            "day_hour",
 904            "day_microsecond",
 905            "day_minute",
 906            "day_second",
 907            "dec",
 908            "decimal",
 909            "declare",
 910            "default",
 911            "delayed",
 912            "delete",
 913            "dense_rank",
 914            "desc",
 915            "describe",
 916            "deterministic",
 917            "distinct",
 918            "distinctrow",
 919            "div",
 920            "double",
 921            "drop",
 922            "dual",
 923            "each",
 924            "else",
 925            "elseif",
 926            "empty",
 927            "enclosed",
 928            "escaped",
 929            "except",
 930            "exists",
 931            "exit",
 932            "explain",
 933            "false",
 934            "fetch",
 935            "first_value",
 936            "float",
 937            "float4",
 938            "float8",
 939            "for",
 940            "force",
 941            "foreign",
 942            "from",
 943            "fulltext",
 944            "function",
 945            "generated",
 946            "get",
 947            "grant",
 948            "group",
 949            "grouping",
 950            "groups",
 951            "having",
 952            "high_priority",
 953            "hour_microsecond",
 954            "hour_minute",
 955            "hour_second",
 956            "if",
 957            "ignore",
 958            "in",
 959            "index",
 960            "infile",
 961            "inner",
 962            "inout",
 963            "insensitive",
 964            "insert",
 965            "int",
 966            "int1",
 967            "int2",
 968            "int3",
 969            "int4",
 970            "int8",
 971            "integer",
 972            "intersect",
 973            "interval",
 974            "into",
 975            "io_after_gtids",
 976            "io_before_gtids",
 977            "is",
 978            "iterate",
 979            "join",
 980            "json_table",
 981            "key",
 982            "keys",
 983            "kill",
 984            "lag",
 985            "last_value",
 986            "lateral",
 987            "lead",
 988            "leading",
 989            "leave",
 990            "left",
 991            "like",
 992            "limit",
 993            "linear",
 994            "lines",
 995            "load",
 996            "localtime",
 997            "localtimestamp",
 998            "lock",
 999            "long",
1000            "longblob",
1001            "longtext",
1002            "loop",
1003            "low_priority",
1004            "master_bind",
1005            "master_ssl_verify_server_cert",
1006            "match",
1007            "maxvalue",
1008            "mediumblob",
1009            "mediumint",
1010            "mediumtext",
1011            "middleint",
1012            "minute_microsecond",
1013            "minute_second",
1014            "mod",
1015            "modifies",
1016            "natural",
1017            "not",
1018            "no_write_to_binlog",
1019            "nth_value",
1020            "ntile",
1021            "null",
1022            "numeric",
1023            "of",
1024            "on",
1025            "optimize",
1026            "optimizer_costs",
1027            "option",
1028            "optionally",
1029            "or",
1030            "order",
1031            "out",
1032            "outer",
1033            "outfile",
1034            "over",
1035            "partition",
1036            "percent_rank",
1037            "precision",
1038            "primary",
1039            "procedure",
1040            "purge",
1041            "range",
1042            "rank",
1043            "read",
1044            "reads",
1045            "read_write",
1046            "real",
1047            "recursive",
1048            "references",
1049            "regexp",
1050            "release",
1051            "rename",
1052            "repeat",
1053            "replace",
1054            "require",
1055            "resignal",
1056            "restrict",
1057            "return",
1058            "revoke",
1059            "right",
1060            "rlike",
1061            "row",
1062            "rows",
1063            "row_number",
1064            "schema",
1065            "schemas",
1066            "second_microsecond",
1067            "select",
1068            "sensitive",
1069            "separator",
1070            "set",
1071            "show",
1072            "signal",
1073            "smallint",
1074            "spatial",
1075            "specific",
1076            "sql",
1077            "sqlexception",
1078            "sqlstate",
1079            "sqlwarning",
1080            "sql_big_result",
1081            "sql_calc_found_rows",
1082            "sql_small_result",
1083            "ssl",
1084            "starting",
1085            "stored",
1086            "straight_join",
1087            "system",
1088            "table",
1089            "terminated",
1090            "then",
1091            "tinyblob",
1092            "tinyint",
1093            "tinytext",
1094            "to",
1095            "trailing",
1096            "trigger",
1097            "true",
1098            "undo",
1099            "union",
1100            "unique",
1101            "unlock",
1102            "unsigned",
1103            "update",
1104            "usage",
1105            "use",
1106            "using",
1107            "utc_date",
1108            "utc_time",
1109            "utc_timestamp",
1110            "values",
1111            "varbinary",
1112            "varchar",
1113            "varcharacter",
1114            "varying",
1115            "virtual",
1116            "when",
1117            "where",
1118            "while",
1119            "window",
1120            "with",
1121            "write",
1122            "xor",
1123            "year_month",
1124            "zerofill",
1125        }
1126
1127        def array_sql(self, expression: exp.Array) -> str:
1128            self.unsupported("Arrays are not supported by MySQL")
1129            return self.function_fallback_sql(expression)
1130
1131        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
1132            self.unsupported("Array operations are not supported by MySQL")
1133            return self.function_fallback_sql(expression)
1134
1135        def dpipe_sql(self, expression: exp.DPipe) -> str:
1136            return self.func("CONCAT", *expression.flatten())
1137
1138        def extract_sql(self, expression: exp.Extract) -> str:
1139            unit = expression.name
1140            if unit and unit.lower() == "epoch":
1141                return self.func("UNIX_TIMESTAMP", expression.expression)
1142
1143            return super().extract_sql(expression)
1144
1145        def datatype_sql(self, expression: exp.DataType) -> str:
1146            if (
1147                self.VARCHAR_REQUIRES_SIZE
1148                and expression.is_type(exp.DataType.Type.VARCHAR)
1149                and not expression.expressions
1150            ):
1151                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
1152                return "TEXT"
1153
1154            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
1155            result = super().datatype_sql(expression)
1156            if expression.this in self.UNSIGNED_TYPE_MAPPING:
1157                result = f"{result} UNSIGNED"
1158
1159            return result
1160
1161        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
1162            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
1163
1164        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
1165            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
1166                return self.func("TIMESTAMP", expression.this)
1167
1168            to = self.CAST_MAPPING.get(expression.to.this)
1169
1170            if to:
1171                expression.to.set("this", to)
1172            return super().cast_sql(expression)
1173
1174        def show_sql(self, expression: exp.Show) -> str:
1175            this = f" {expression.name}"
1176            full = " FULL" if expression.args.get("full") else ""
1177            global_ = " GLOBAL" if expression.args.get("global") else ""
1178
1179            target = self.sql(expression, "target")
1180            target = f" {target}" if target else ""
1181            if expression.name in ("COLUMNS", "INDEX"):
1182                target = f" FROM{target}"
1183            elif expression.name == "GRANTS":
1184                target = f" FOR{target}"
1185
1186            db = self._prefixed_sql("FROM", expression, "db")
1187
1188            like = self._prefixed_sql("LIKE", expression, "like")
1189            where = self.sql(expression, "where")
1190
1191            types = self.expressions(expression, key="types")
1192            types = f" {types}" if types else types
1193            query = self._prefixed_sql("FOR QUERY", expression, "query")
1194
1195            if expression.name == "PROFILE":
1196                offset = self._prefixed_sql("OFFSET", expression, "offset")
1197                limit = self._prefixed_sql("LIMIT", expression, "limit")
1198            else:
1199                offset = ""
1200                limit = self._oldstyle_limit_sql(expression)
1201
1202            log = self._prefixed_sql("IN", expression, "log")
1203            position = self._prefixed_sql("FROM", expression, "position")
1204
1205            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
1206
1207            if expression.name == "ENGINE":
1208                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
1209            else:
1210                mutex_or_status = ""
1211
1212            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
1213
1214        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
1215            dtype = self.sql(expression, "dtype")
1216            if not dtype:
1217                return super().altercolumn_sql(expression)
1218
1219            this = self.sql(expression, "this")
1220            return f"MODIFY COLUMN {this} {dtype}"
1221
1222        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
1223            sql = self.sql(expression, arg)
1224            return f" {prefix} {sql}" if sql else ""
1225
1226        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
1227            limit = self.sql(expression, "limit")
1228            offset = self.sql(expression, "offset")
1229            if limit:
1230                limit_offset = f"{offset}, {limit}" if offset else limit
1231                return f" LIMIT {limit_offset}"
1232            return ""
1233
1234        def chr_sql(self, expression: exp.Chr) -> str:
1235            this = self.expressions(sqls=[expression.this] + expression.expressions)
1236            charset = expression.args.get("charset")
1237            using = f" USING {self.sql(charset)}" if charset else ""
1238            return f"CHAR({this}{using})"
1239
1240        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
1241            unit = expression.args.get("unit")
1242
1243            # Pick an old-enough date to avoid negative timestamp diffs
1244            start_ts = "'0000-01-01 00:00:00'"
1245
1246            # Source: https://stackoverflow.com/a/32955740
1247            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
1248            interval = exp.Interval(this=timestamp_diff, unit=unit)
1249            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
1250
1251            return self.sql(dateadd)
1252
1253        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
1254            from_tz = expression.args.get("source_tz")
1255            to_tz = expression.args.get("target_tz")
1256            dt = expression.args.get("timestamp")
1257
1258            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
1259
1260        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
1261            self.unsupported("AT TIME ZONE is not supported by MySQL")
1262            return self.sql(expression.this)
PROMOTE_TO_INFERRED_DATETIME_TYPE = True

This flag is used in the optimizer's canonicalize rule and determines whether x will be promoted to the literal's type in x::DATE < '2020-01-01 12:05:03' (i.e., DATETIME). When false, the literal is cast to x's type to match it instead.

IDENTIFIERS_CAN_START_WITH_DIGIT = True

Whether an unquoted identifier can start with a digit.

NORMALIZATION_STRATEGY = <NormalizationStrategy.CASE_SENSITIVE: 'CASE_SENSITIVE'>

Specifies the strategy according to which identifiers should be normalized.

TIME_FORMAT = "'%Y-%m-%d %T'"
DPIPE_IS_STRING_CONCAT = False

Whether the DPIPE token (||) is a string concatenation operator.

SUPPORTS_USER_DEFINED_TYPES = False

Whether user-defined data types are supported.

SUPPORTS_SEMI_ANTI_JOIN = False

Whether SEMI or ANTI joins are supported.

SAFE_DIVISION = True

Whether division by zero throws an error (False) or returns NULL (True).

TIME_MAPPING: Dict[str, str] = {'%M': '%B', '%c': '%-m', '%e': '%-d', '%h': '%I', '%i': '%M', '%s': '%S', '%u': '%W', '%k': '%-H', '%l': '%-I', '%T': '%H:%M:%S', '%W': '%A'}

Associates this dialect's time formats with their equivalent Python strftime formats.

SUPPORTS_COLUMN_JOIN_MARKS = False

Whether the old-style outer join (+) syntax is supported.

UNESCAPED_SEQUENCES: Dict[str, str] = {'\\a': '\x07', '\\b': '\x08', '\\f': '\x0c', '\\n': '\n', '\\r': '\r', '\\t': '\t', '\\v': '\x0b', '\\\\': '\\'}

Mapping of an escaped sequence (\n) to its unescaped version ( ).

tokenizer_class = <class 'MySQL.Tokenizer'>
jsonpath_tokenizer_class = <class 'sqlglot.tokens.JSONPathTokenizer'>
parser_class = <class 'MySQL.Parser'>
generator_class = <class 'MySQL.Generator'>
TIME_TRIE: Dict = {'%': {'M': {0: True}, 'c': {0: True}, 'e': {0: True}, 'h': {0: True}, 'i': {0: True}, 's': {0: True}, 'u': {0: True}, 'k': {0: True}, 'l': {0: True}, 'T': {0: True}, 'W': {0: True}}}
FORMAT_TRIE: Dict = {'%': {'M': {0: True}, 'c': {0: True}, 'e': {0: True}, 'h': {0: True}, 'i': {0: True}, 's': {0: True}, 'u': {0: True}, 'k': {0: True}, 'l': {0: True}, 'T': {0: True}, 'W': {0: True}}}
INVERSE_TIME_MAPPING: Dict[str, str] = {'%B': '%M', '%-m': '%c', '%-d': '%e', '%I': '%h', '%M': '%i', '%S': '%s', '%W': '%u', '%-H': '%k', '%-I': '%l', '%H:%M:%S': '%T', '%A': '%W'}
INVERSE_TIME_TRIE: Dict = {'%': {'B': {0: True}, '-': {'m': {0: True}, 'd': {0: True}, 'H': {0: True}, 'I': {0: True}}, 'I': {0: True}, 'M': {0: True}, 'S': {0: True}, 'W': {0: True}, 'H': {':': {'%': {'M': {':': {'%': {'S': {0: True}}}}}}}, 'A': {0: True}}}
INVERSE_FORMAT_MAPPING: Dict[str, str] = {}
INVERSE_FORMAT_TRIE: Dict = {}
INVERSE_CREATABLE_KIND_MAPPING: dict[str, str] = {}
ESCAPED_SEQUENCES: Dict[str, str] = {'\x07': '\\a', '\x08': '\\b', '\x0c': '\\f', '\n': '\\n', '\r': '\\r', '\t': '\\t', '\x0b': '\\v', '\\': '\\\\'}
QUOTE_START = "'"
QUOTE_END = "'"
IDENTIFIER_START = '`'
IDENTIFIER_END = '`'
BIT_START: Optional[str] = "b'"
BIT_END: Optional[str] = "'"
HEX_START: Optional[str] = "x'"
HEX_END: Optional[str] = "'"
BYTE_START: Optional[str] = None
BYTE_END: Optional[str] = None
UNICODE_START: Optional[str] = None
UNICODE_END: Optional[str] = None
class MySQL.Tokenizer(sqlglot.tokens.Tokenizer):
182    class Tokenizer(tokens.Tokenizer):
183        QUOTES = ["'", '"']
184        COMMENTS = ["--", "#", ("/*", "*/")]
185        IDENTIFIERS = ["`"]
186        STRING_ESCAPES = ["'", '"', "\\"]
187        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
188        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
189
190        KEYWORDS = {
191            **tokens.Tokenizer.KEYWORDS,
192            "CHARSET": TokenType.CHARACTER_SET,
193            # The DESCRIBE and EXPLAIN statements are synonyms.
194            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
195            "EXPLAIN": TokenType.DESCRIBE,
196            "FORCE": TokenType.FORCE,
197            "IGNORE": TokenType.IGNORE,
198            "KEY": TokenType.KEY,
199            "LOCK TABLES": TokenType.COMMAND,
200            "LONGBLOB": TokenType.LONGBLOB,
201            "LONGTEXT": TokenType.LONGTEXT,
202            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
203            "TINYBLOB": TokenType.TINYBLOB,
204            "TINYTEXT": TokenType.TINYTEXT,
205            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
206            "MEDIUMINT": TokenType.MEDIUMINT,
207            "MEMBER OF": TokenType.MEMBER_OF,
208            "SEPARATOR": TokenType.SEPARATOR,
209            "SERIAL": TokenType.SERIAL,
210            "START": TokenType.BEGIN,
211            "SIGNED": TokenType.BIGINT,
212            "SIGNED INTEGER": TokenType.BIGINT,
213            "UNLOCK TABLES": TokenType.COMMAND,
214            "UNSIGNED": TokenType.UBIGINT,
215            "UNSIGNED INTEGER": TokenType.UBIGINT,
216            "YEAR": TokenType.YEAR,
217            "_ARMSCII8": TokenType.INTRODUCER,
218            "_ASCII": TokenType.INTRODUCER,
219            "_BIG5": TokenType.INTRODUCER,
220            "_BINARY": TokenType.INTRODUCER,
221            "_CP1250": TokenType.INTRODUCER,
222            "_CP1251": TokenType.INTRODUCER,
223            "_CP1256": TokenType.INTRODUCER,
224            "_CP1257": TokenType.INTRODUCER,
225            "_CP850": TokenType.INTRODUCER,
226            "_CP852": TokenType.INTRODUCER,
227            "_CP866": TokenType.INTRODUCER,
228            "_CP932": TokenType.INTRODUCER,
229            "_DEC8": TokenType.INTRODUCER,
230            "_EUCJPMS": TokenType.INTRODUCER,
231            "_EUCKR": TokenType.INTRODUCER,
232            "_GB18030": TokenType.INTRODUCER,
233            "_GB2312": TokenType.INTRODUCER,
234            "_GBK": TokenType.INTRODUCER,
235            "_GEOSTD8": TokenType.INTRODUCER,
236            "_GREEK": TokenType.INTRODUCER,
237            "_HEBREW": TokenType.INTRODUCER,
238            "_HP8": TokenType.INTRODUCER,
239            "_KEYBCS2": TokenType.INTRODUCER,
240            "_KOI8R": TokenType.INTRODUCER,
241            "_KOI8U": TokenType.INTRODUCER,
242            "_LATIN1": TokenType.INTRODUCER,
243            "_LATIN2": TokenType.INTRODUCER,
244            "_LATIN5": TokenType.INTRODUCER,
245            "_LATIN7": TokenType.INTRODUCER,
246            "_MACCE": TokenType.INTRODUCER,
247            "_MACROMAN": TokenType.INTRODUCER,
248            "_SJIS": TokenType.INTRODUCER,
249            "_SWE7": TokenType.INTRODUCER,
250            "_TIS620": TokenType.INTRODUCER,
251            "_UCS2": TokenType.INTRODUCER,
252            "_UJIS": TokenType.INTRODUCER,
253            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
254            "_UTF8": TokenType.INTRODUCER,
255            "_UTF16": TokenType.INTRODUCER,
256            "_UTF16LE": TokenType.INTRODUCER,
257            "_UTF32": TokenType.INTRODUCER,
258            "_UTF8MB3": TokenType.INTRODUCER,
259            "_UTF8MB4": TokenType.INTRODUCER,
260            "@@": TokenType.SESSION_PARAMETER,
261        }
262
263        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
QUOTES = ["'", '"']
COMMENTS = ['--', '#', ('/*', '*/')]
IDENTIFIERS = ['`']
STRING_ESCAPES = ["'", '"', '\\']
BIT_STRINGS = [("b'", "'"), ("B'", "'"), ('0b', '')]
HEX_STRINGS = [("x'", "'"), ("X'", "'"), ('0x', '')]
KEYWORDS = {'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, ':=': <TokenType.COLON_EQ: 'COLON_EQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, '??': <TokenType.DQMARK: 'DQMARK'>, '~~~': <TokenType.GLOB: 'GLOB'>, '~~': <TokenType.LIKE: 'LIKE'>, '~~*': <TokenType.ILIKE: 'ILIKE'>, '~*': <TokenType.IRLIKE: 'IRLIKE'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'COPY': <TokenType.COPY: 'COPY'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'KILL': <TokenType.KILL: 'KILL'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'RENAME': <TokenType.RENAME: 'RENAME'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'START WITH': <TokenType.START_WITH: 'START_WITH'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, 'VALUES': <TokenType.VALUES: 'VALUES'>, 'VIEW': <TokenType.VIEW: 'VIEW'>, 'VOLATILE': <TokenType.VOLATILE: 'VOLATILE'>, 'WHEN': <TokenType.WHEN: 'WHEN'>, 'WHERE': <TokenType.WHERE: 'WHERE'>, 'WINDOW': <TokenType.WINDOW: 'WINDOW'>, 'WITH': <TokenType.WITH: 'WITH'>, 'APPLY': <TokenType.APPLY: 'APPLY'>, 'ARRAY': <TokenType.ARRAY: 'ARRAY'>, 'BIT': <TokenType.BIT: 'BIT'>, 'BOOL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BOOLEAN': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BYTE': <TokenType.TINYINT: 'TINYINT'>, 'MEDIUMINT': <TokenType.MEDIUMINT: 'MEDIUMINT'>, 'INT1': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'INT16': <TokenType.SMALLINT: 'SMALLINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'UHUGEINT': <TokenType.UINT128: 'UINT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL32': <TokenType.DECIMAL32: 'DECIMAL32'>, 'DECIMAL64': <TokenType.DECIMAL64: 'DECIMAL64'>, 'DECIMAL128': <TokenType.DECIMAL128: 'DECIMAL128'>, 'DECIMAL256': <TokenType.DECIMAL256: 'DECIMAL256'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.DESCRIBE: 'DESCRIBE'>, 'GRANT': <TokenType.GRANT: 'GRANT'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, 'CHARSET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'FORCE': <TokenType.FORCE: 'FORCE'>, 'IGNORE': <TokenType.IGNORE: 'IGNORE'>, 'KEY': <TokenType.KEY: 'KEY'>, 'LOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'MEMBER OF': <TokenType.MEMBER_OF: 'MEMBER_OF'>, 'SEPARATOR': <TokenType.SEPARATOR: 'SEPARATOR'>, 'SERIAL': <TokenType.SERIAL: 'SERIAL'>, 'START': <TokenType.BEGIN: 'BEGIN'>, 'SIGNED': <TokenType.BIGINT: 'BIGINT'>, 'SIGNED INTEGER': <TokenType.BIGINT: 'BIGINT'>, 'UNLOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'UNSIGNED': <TokenType.UBIGINT: 'UBIGINT'>, 'UNSIGNED INTEGER': <TokenType.UBIGINT: 'UBIGINT'>, 'YEAR': <TokenType.YEAR: 'YEAR'>, '_ARMSCII8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_ASCII': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BIG5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BINARY': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1250': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1251': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1256': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1257': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP850': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP852': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP866': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP932': <TokenType.INTRODUCER: 'INTRODUCER'>, '_DEC8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCJPMS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCKR': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB18030': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB2312': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GBK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GEOSTD8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GREEK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HEBREW': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HP8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KEYBCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8R': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8U': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN1': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACCE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACROMAN': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SWE7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_TIS620': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16LE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF32': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB3': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB4': <TokenType.INTRODUCER: 'INTRODUCER'>, '@@': <TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>}
COMMANDS = {<TokenType.EXECUTE: 'EXECUTE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.FETCH: 'FETCH'>, <TokenType.RENAME: 'RENAME'>, <TokenType.REPLACE: 'REPLACE'>}
class MySQL.Parser(sqlglot.parser.Parser):
265    class Parser(parser.Parser):
266        FUNC_TOKENS = {
267            *parser.Parser.FUNC_TOKENS,
268            TokenType.DATABASE,
269            TokenType.SCHEMA,
270            TokenType.VALUES,
271        }
272
273        CONJUNCTION = {
274            **parser.Parser.CONJUNCTION,
275            TokenType.DAMP: exp.And,
276            TokenType.XOR: exp.Xor,
277        }
278
279        DISJUNCTION = {
280            **parser.Parser.DISJUNCTION,
281            TokenType.DPIPE: exp.Or,
282        }
283
284        TABLE_ALIAS_TOKENS = (
285            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
286        )
287
288        RANGE_PARSERS = {
289            **parser.Parser.RANGE_PARSERS,
290            TokenType.MEMBER_OF: lambda self, this: self.expression(
291                exp.JSONArrayContains,
292                this=this,
293                expression=self._parse_wrapped(self._parse_expression),
294            ),
295        }
296
297        FUNCTIONS = {
298            **parser.Parser.FUNCTIONS,
299            "CHAR_LENGTH": exp.Length.from_arg_list,
300            "CHARACTER_LENGTH": exp.Length.from_arg_list,
301            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
302                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
303            ),
304            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
305            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
306            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
307            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
308            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
309            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
310            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
311            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
312            "FORMAT": exp.NumberToStr.from_arg_list,
313            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
314            "ISNULL": isnull_to_is_null,
315            "LOCATE": locate_to_strposition,
316            "MAKETIME": exp.TimeFromParts.from_arg_list,
317            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
318            "MONTHNAME": lambda args: exp.TimeToStr(
319                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
320                format=exp.Literal.string("%B"),
321            ),
322            "STR_TO_DATE": _str_to_date,
323            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
324            "TO_DAYS": lambda args: exp.paren(
325                exp.DateDiff(
326                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
327                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
328                    unit=exp.var("DAY"),
329                )
330                + 1
331            ),
332            "WEEK": lambda args: exp.Week(
333                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
334            ),
335            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
336            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
337        }
338
339        FUNCTION_PARSERS = {
340            **parser.Parser.FUNCTION_PARSERS,
341            "CHAR": lambda self: self.expression(
342                exp.Chr,
343                expressions=self._parse_csv(self._parse_assignment),
344                charset=self._match(TokenType.USING) and self._parse_var(),
345            ),
346            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
347            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
348            "VALUES": lambda self: self.expression(
349                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
350            ),
351            "JSON_VALUE": lambda self: self._parse_json_value(),
352        }
353
354        STATEMENT_PARSERS = {
355            **parser.Parser.STATEMENT_PARSERS,
356            TokenType.SHOW: lambda self: self._parse_show(),
357        }
358
359        SHOW_PARSERS = {
360            "BINARY LOGS": _show_parser("BINARY LOGS"),
361            "MASTER LOGS": _show_parser("BINARY LOGS"),
362            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
363            "CHARACTER SET": _show_parser("CHARACTER SET"),
364            "CHARSET": _show_parser("CHARACTER SET"),
365            "COLLATION": _show_parser("COLLATION"),
366            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
367            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
368            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
369            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
370            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
371            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
372            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
373            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
374            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
375            "DATABASES": _show_parser("DATABASES"),
376            "SCHEMAS": _show_parser("DATABASES"),
377            "ENGINE": _show_parser("ENGINE", target=True),
378            "STORAGE ENGINES": _show_parser("ENGINES"),
379            "ENGINES": _show_parser("ENGINES"),
380            "ERRORS": _show_parser("ERRORS"),
381            "EVENTS": _show_parser("EVENTS"),
382            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
383            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
384            "GRANTS": _show_parser("GRANTS", target="FOR"),
385            "INDEX": _show_parser("INDEX", target="FROM"),
386            "MASTER STATUS": _show_parser("MASTER STATUS"),
387            "OPEN TABLES": _show_parser("OPEN TABLES"),
388            "PLUGINS": _show_parser("PLUGINS"),
389            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
390            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
391            "PRIVILEGES": _show_parser("PRIVILEGES"),
392            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
393            "PROCESSLIST": _show_parser("PROCESSLIST"),
394            "PROFILE": _show_parser("PROFILE"),
395            "PROFILES": _show_parser("PROFILES"),
396            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
397            "REPLICAS": _show_parser("REPLICAS"),
398            "SLAVE HOSTS": _show_parser("REPLICAS"),
399            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
400            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
401            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
402            "SESSION STATUS": _show_parser("STATUS"),
403            "STATUS": _show_parser("STATUS"),
404            "TABLE STATUS": _show_parser("TABLE STATUS"),
405            "FULL TABLES": _show_parser("TABLES", full=True),
406            "TABLES": _show_parser("TABLES"),
407            "TRIGGERS": _show_parser("TRIGGERS"),
408            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
409            "SESSION VARIABLES": _show_parser("VARIABLES"),
410            "VARIABLES": _show_parser("VARIABLES"),
411            "WARNINGS": _show_parser("WARNINGS"),
412        }
413
414        PROPERTY_PARSERS = {
415            **parser.Parser.PROPERTY_PARSERS,
416            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
417        }
418
419        SET_PARSERS = {
420            **parser.Parser.SET_PARSERS,
421            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
422            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
423            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
424            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
425            "NAMES": lambda self: self._parse_set_item_names(),
426        }
427
428        CONSTRAINT_PARSERS = {
429            **parser.Parser.CONSTRAINT_PARSERS,
430            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
431            "INDEX": lambda self: self._parse_index_constraint(),
432            "KEY": lambda self: self._parse_index_constraint(),
433            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
434        }
435
436        ALTER_PARSERS = {
437            **parser.Parser.ALTER_PARSERS,
438            "MODIFY": lambda self: self._parse_alter_table_alter(),
439        }
440
441        SCHEMA_UNNAMED_CONSTRAINTS = {
442            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
443            "FULLTEXT",
444            "INDEX",
445            "KEY",
446            "SPATIAL",
447        }
448
449        PROFILE_TYPES: parser.OPTIONS_TYPE = {
450            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
451            "BLOCK": ("IO",),
452            "CONTEXT": ("SWITCHES",),
453            "PAGE": ("FAULTS",),
454        }
455
456        TYPE_TOKENS = {
457            *parser.Parser.TYPE_TOKENS,
458            TokenType.SET,
459        }
460
461        ENUM_TYPE_TOKENS = {
462            *parser.Parser.ENUM_TYPE_TOKENS,
463            TokenType.SET,
464        }
465
466        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
467        OPERATION_MODIFIERS = {
468            "HIGH_PRIORITY",
469            "STRAIGHT_JOIN",
470            "SQL_SMALL_RESULT",
471            "SQL_BIG_RESULT",
472            "SQL_BUFFER_RESULT",
473            "SQL_NO_CACHE",
474            "SQL_CALC_FOUND_ROWS",
475        }
476
477        LOG_DEFAULTS_TO_LN = True
478        STRING_ALIASES = True
479        VALUES_FOLLOWED_BY_PAREN = False
480        SUPPORTS_PARTITION_SELECTION = True
481
482        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
483            this = self._parse_id_var()
484            if not self._match(TokenType.L_PAREN):
485                return this
486
487            expression = self._parse_number()
488            self._match_r_paren()
489            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
490
491        def _parse_index_constraint(
492            self, kind: t.Optional[str] = None
493        ) -> exp.IndexColumnConstraint:
494            if kind:
495                self._match_texts(("INDEX", "KEY"))
496
497            this = self._parse_id_var(any_token=False)
498            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
499            expressions = self._parse_wrapped_csv(self._parse_ordered)
500
501            options = []
502            while True:
503                if self._match_text_seq("KEY_BLOCK_SIZE"):
504                    self._match(TokenType.EQ)
505                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
506                elif self._match(TokenType.USING):
507                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
508                elif self._match_text_seq("WITH", "PARSER"):
509                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
510                elif self._match(TokenType.COMMENT):
511                    opt = exp.IndexConstraintOption(comment=self._parse_string())
512                elif self._match_text_seq("VISIBLE"):
513                    opt = exp.IndexConstraintOption(visible=True)
514                elif self._match_text_seq("INVISIBLE"):
515                    opt = exp.IndexConstraintOption(visible=False)
516                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
517                    self._match(TokenType.EQ)
518                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
519                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
520                    self._match(TokenType.EQ)
521                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
522                else:
523                    opt = None
524
525                if not opt:
526                    break
527
528                options.append(opt)
529
530            return self.expression(
531                exp.IndexColumnConstraint,
532                this=this,
533                expressions=expressions,
534                kind=kind,
535                index_type=index_type,
536                options=options,
537            )
538
539        def _parse_show_mysql(
540            self,
541            this: str,
542            target: bool | str = False,
543            full: t.Optional[bool] = None,
544            global_: t.Optional[bool] = None,
545        ) -> exp.Show:
546            if target:
547                if isinstance(target, str):
548                    self._match_text_seq(target)
549                target_id = self._parse_id_var()
550            else:
551                target_id = None
552
553            log = self._parse_string() if self._match_text_seq("IN") else None
554
555            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
556                position = self._parse_number() if self._match_text_seq("FROM") else None
557                db = None
558            else:
559                position = None
560                db = None
561
562                if self._match(TokenType.FROM):
563                    db = self._parse_id_var()
564                elif self._match(TokenType.DOT):
565                    db = target_id
566                    target_id = self._parse_id_var()
567
568            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
569
570            like = self._parse_string() if self._match_text_seq("LIKE") else None
571            where = self._parse_where()
572
573            if this == "PROFILE":
574                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
575                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
576                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
577                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
578            else:
579                types, query = None, None
580                offset, limit = self._parse_oldstyle_limit()
581
582            mutex = True if self._match_text_seq("MUTEX") else None
583            mutex = False if self._match_text_seq("STATUS") else mutex
584
585            return self.expression(
586                exp.Show,
587                this=this,
588                target=target_id,
589                full=full,
590                log=log,
591                position=position,
592                db=db,
593                channel=channel,
594                like=like,
595                where=where,
596                types=types,
597                query=query,
598                offset=offset,
599                limit=limit,
600                mutex=mutex,
601                **{"global": global_},  # type: ignore
602            )
603
604        def _parse_oldstyle_limit(
605            self,
606        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
607            limit = None
608            offset = None
609            if self._match_text_seq("LIMIT"):
610                parts = self._parse_csv(self._parse_number)
611                if len(parts) == 1:
612                    limit = parts[0]
613                elif len(parts) == 2:
614                    limit = parts[1]
615                    offset = parts[0]
616
617            return offset, limit
618
619        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
620            this = self._parse_string() or self._parse_unquoted_field()
621            return self.expression(exp.SetItem, this=this, kind=kind)
622
623        def _parse_set_item_names(self) -> exp.Expression:
624            charset = self._parse_string() or self._parse_unquoted_field()
625            if self._match_text_seq("COLLATE"):
626                collate = self._parse_string() or self._parse_unquoted_field()
627            else:
628                collate = None
629
630            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
631
632        def _parse_type(
633            self, parse_interval: bool = True, fallback_to_identifier: bool = False
634        ) -> t.Optional[exp.Expression]:
635            # mysql binary is special and can work anywhere, even in order by operations
636            # it operates like a no paren func
637            if self._match(TokenType.BINARY, advance=False):
638                data_type = self._parse_types(check_func=True, allow_identifiers=False)
639
640                if isinstance(data_type, exp.DataType):
641                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
642
643            return super()._parse_type(
644                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
645            )
646
647        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
648            def concat_exprs(
649                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
650            ) -> exp.Expression:
651                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
652                    concat_exprs = [
653                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
654                    ]
655                    node.set("expressions", concat_exprs)
656                    return node
657                if len(exprs) == 1:
658                    return exprs[0]
659                return self.expression(exp.Concat, expressions=args, safe=True)
660
661            args = self._parse_csv(self._parse_lambda)
662
663            if args:
664                order = args[-1] if isinstance(args[-1], exp.Order) else None
665
666                if order:
667                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
668                    # remove 'expr' from exp.Order and add it back to args
669                    args[-1] = order.this
670                    order.set("this", concat_exprs(order.this, args))
671
672                this = order or concat_exprs(args[0], args)
673            else:
674                this = None
675
676            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
677
678            return self.expression(exp.GroupConcat, this=this, separator=separator)
679
680        def _parse_json_value(self) -> exp.JSONValue:
681            this = self._parse_bitwise()
682            self._match(TokenType.COMMA)
683            path = self._parse_bitwise()
684
685            returning = self._match(TokenType.RETURNING) and self._parse_type()
686
687            return self.expression(
688                exp.JSONValue,
689                this=this,
690                path=self.dialect.to_json_path(path),
691                returning=returning,
692                on_condition=self._parse_on_condition(),
693            )

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: 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
FUNC_TOKENS = {<TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.TABLE: 'TABLE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.NESTED: 'NESTED'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.FIRST: 'FIRST'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.YEAR: 'YEAR'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.LIKE: 'LIKE'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.LEFT: 'LEFT'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.INT128: 'INT128'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.POINT: 'POINT'>, <TokenType.TIME: 'TIME'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UINT: 'UINT'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.IPV6: 'IPV6'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.JSON: 'JSON'>, <TokenType.RING: 'RING'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VAR: 'VAR'>, <TokenType.DATE32: 'DATE32'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.INET: 'INET'>, <TokenType.XML: 'XML'>, <TokenType.GLOB: 'GLOB'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.BINARY: 'BINARY'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.FILTER: 'FILTER'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.UINT128: 'UINT128'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.ROW: 'ROW'>, <TokenType.INT256: 'INT256'>, <TokenType.INT: 'INT'>, <TokenType.NULL: 'NULL'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.NAME: 'NAME'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.SOME: 'SOME'>, <TokenType.MAP: 'MAP'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.XOR: 'XOR'>, <TokenType.BIT: 'BIT'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.UNION: 'UNION'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.CHAR: 'CHAR'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ALL: 'ALL'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.UUID: 'UUID'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.ENUM: 'ENUM'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.TEXT: 'TEXT'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.DATE: 'DATE'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INSERT: 'INSERT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.VALUES: 'VALUES'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.ANY: 'ANY'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.NEXT: 'NEXT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.TIMETZ: 'TIMETZ'>}
CONJUNCTION = {<TokenType.AND: 'AND'>: <class 'sqlglot.expressions.And'>, <TokenType.DAMP: 'DAMP'>: <class 'sqlglot.expressions.And'>, <TokenType.XOR: 'XOR'>: <class 'sqlglot.expressions.Xor'>}
DISJUNCTION = {<TokenType.OR: 'OR'>: <class 'sqlglot.expressions.Or'>, <TokenType.DPIPE: 'DPIPE'>: <class 'sqlglot.expressions.Or'>}
TABLE_ALIAS_TOKENS = {<TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.TABLE: 'TABLE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.NESTED: 'NESTED'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.FIRST: 'FIRST'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.YEAR: 'YEAR'>, <TokenType.SET: 'SET'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.INT128: 'INT128'>, <TokenType.CASE: 'CASE'>, <TokenType.END: 'END'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.POINT: 'POINT'>, <TokenType.TIME: 'TIME'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UINT: 'UINT'>, <TokenType.ASC: 'ASC'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.CACHE: 'CACHE'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.JSONB: 'JSONB'>, <TokenType.DETACH: 'DETACH'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.JSON: 'JSON'>, <TokenType.SINK: 'SINK'>, <TokenType.RING: 'RING'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VAR: 'VAR'>, <TokenType.DATE32: 'DATE32'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.ANTI: 'ANTI'>, <TokenType.SEMI: 'SEMI'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.ROWS: 'ROWS'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.INET: 'INET'>, <TokenType.CUBE: 'CUBE'>, <TokenType.XML: 'XML'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.COPY: 'COPY'>, <TokenType.BINARY: 'BINARY'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UINT128: 'UINT128'>, <TokenType.INT256: 'INT256'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.ROW: 'ROW'>, <TokenType.INT: 'INT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.NULL: 'NULL'>, <TokenType.RENAME: 'RENAME'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.NAME: 'NAME'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.KILL: 'KILL'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.SOME: 'SOME'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.MAP: 'MAP'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TAG: 'TAG'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.BIT: 'BIT'>, <TokenType.DIV: 'DIV'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.IS: 'IS'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.MODEL: 'MODEL'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.ALL: 'ALL'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.CHAR: 'CHAR'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.MONEY: 'MONEY'>, <TokenType.FALSE: 'FALSE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.UUID: 'UUID'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.KEEP: 'KEEP'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.DESC: 'DESC'>, <TokenType.ENUM: 'ENUM'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.TOP: 'TOP'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.TEXT: 'TEXT'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.DATE: 'DATE'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.SHOW: 'SHOW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.VIEW: 'VIEW'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TRUE: 'TRUE'>, <TokenType.ANY: 'ANY'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.DELETE: 'DELETE'>, <TokenType.NEXT: 'NEXT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.TIMETZ: 'TIMETZ'>}
RANGE_PARSERS = {<TokenType.AT_GT: 'AT_GT'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.LT_AT: 'LT_AT'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.OVERLAPS: 'OVERLAPS'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.RLIKE: 'RLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.SIMILAR_TO: 'SIMILAR_TO'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.FOR: 'FOR'>: <function Parser.<lambda>>, <TokenType.MEMBER_OF: 'MEMBER_OF'>: <function MySQL.Parser.<lambda>>}
FUNCTIONS = {'ABS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Abs'>>, 'ADD_MONTHS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AddMonths'>>, 'ANONYMOUS_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnonymousAggFunc'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPLY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Apply'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <function Parser.<lambda>>, 'ARRAY_AGG': <function Parser.<lambda>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CONSTRUCT_COMPACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConstructCompact'>>, 'ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_HAS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_CONTAINS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'ARRAY_HAS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, '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_OVERLAPS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayOverlaps'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_LENGTH': <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_TO_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'ARRAY_UNIQUE_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CBRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cbrt'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CHR': <function Parser.<lambda>>, 'CHAR': <function Parser.<lambda>>, 'COALESCE': <function build_coalesce>, 'IFNULL': <function build_coalesce>, 'NVL': <function build_coalesce>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COLUMNS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Columns'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConnectByRoot'>>, 'CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Contains'>>, 'CONVERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Convert'>>, 'CONVERT_TIMEZONE': <function 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'DATE': <function MySQL.Parser.<lambda>>, 'DATE_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'DATEDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <function build_date_delta_with_interval.<locals>._builder>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Datetime'>>, 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'DAYOFYEAR': <function MySQL.Parser.<lambda>>, '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'>>, 'EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exists'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, 'EXPLODING_GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodingGenerateSeries'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FEATURES_AT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FeaturesAtTime'>>, 'FIRST': <bound method 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'sqlglot.expressions.JSONExtractArray'>>, 'JSON_EXTRACT_SCALAR': <function build_extract_json_with_path.<locals>._builder>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObjectAgg'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, 'J_S_O_N_VALUE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONValueArray'>>, 'LAG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lag'>>, 'LAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Last'>>, 'LAST_DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastValue'>>, 'LEAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lead'>>, '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'>>, 'LIST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.List'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function build_logarithm>, '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 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method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MEDIAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Median'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <function MySQL.Parser.<lambda>>, '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'>>, 'NORMALIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Normalize'>>, 'NTH_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NthValue'>>, 'NULLIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nullif'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OBJECT_INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ObjectInsert'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'OVERLAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Overlay'>>, 'PAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pad'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PARSE_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'JSON_PARSE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POSEXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PosexplodeOuter'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'PREDICT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Predict'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'QUARTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quarter'>>, 'RAND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDOM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Randn'>>, 'RANGE_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RangeN'>>, 'READ_CSV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ReadCSV'>>, 'REDUCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Reduce'>>, 'REGEXP_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtract'>>, 'REGEXP_EXTRACT_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtractAll'>>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpReplace'>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SIGN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SIGNUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, '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'>>, 'SPLIT_PART': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SplitPart'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDEV': <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': <function _str_to_date>, 'STR_TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToMap'>>, 'STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToTime'>>, 'STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToUnix'>>, 'STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.String'>>, 'STRING_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'SPLIT_BY_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUBSTR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Time'>>, 'TIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeDiff'>>, 'TIME_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIMEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Timestamp'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMPDIFF': <function build_date_delta.<locals>._builder>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMPFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToArray'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <function MySQL.Parser.<lambda>>, 'TO_DOUBLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDouble'>>, 'TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToMap'>>, 'TO_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToNumber'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Try'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsDiff'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'TS_OR_DS_TO_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDatetime'>>, 'TS_OR_DS_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTime'>>, 'TS_OR_DS_TO_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTimestamp'>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNIX_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixDate'>>, 'UNIX_SECONDS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixSeconds'>>, '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'>>, 'UNNEST': <function Parser.<lambda>>, 'UPPER': <function build_upper>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'GEN_RANDOM_UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'GENERATE_UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'UUID_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'VAR_MAP': <function build_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': <function MySQL.Parser.<lambda>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <function MySQL.Parser.<lambda>>, 'XMLELEMENT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLElement'>>, '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': <function MySQL.Parser.<lambda>>, 'ARRAYAGG': <function Parser.<lambda>>, 'GLOB': <function Parser.<lambda>>, 'INSTR': <function Parser.<lambda>>, 'JSON_EXTRACT_PATH_TEXT': <function build_extract_json_with_path.<locals>._builder>, 'LIKE': <function build_like>, 'LOG2': <function Parser.<lambda>>, 'LOG10': <function Parser.<lambda>>, 'LPAD': <function Parser.<lambda>>, 'LEFTPAD': <function Parser.<lambda>>, 'LTRIM': <function Parser.<lambda>>, 'MOD': <function build_mod>, 'RIGHTPAD': <function Parser.<lambda>>, 'RPAD': <function Parser.<lambda>>, 'RTRIM': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'TO_HEX': <function build_hex>, 'CHAR_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'CHARACTER_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'CONVERT_TZ': <function MySQL.Parser.<lambda>>, 'DATE_FORMAT': <function build_formatted_time.<locals>._builder>, 'FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'FROM_UNIXTIME': <function build_formatted_time.<locals>._builder>, 'ISNULL': <function isnull_to_is_null>, 'LOCATE': <function locate_to_strposition>, 'MAKETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'MONTHNAME': <function MySQL.Parser.<lambda>>}
FUNCTION_PARSERS = {'CAST': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'GAP_FILL': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, 'NORMALIZE': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'OVERLAY': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'PREDICT': <function Parser.<lambda>>, 'SAFE_CAST': <function Parser.<lambda>>, 'STRING_AGG': <function Parser.<lambda>>, 'SUBSTRING': <function Parser.<lambda>>, 'TRIM': <function Parser.<lambda>>, 'TRY_CAST': <function Parser.<lambda>>, 'TRY_CONVERT': <function Parser.<lambda>>, 'XMLELEMENT': <function Parser.<lambda>>, 'CHAR': <function MySQL.Parser.<lambda>>, 'GROUP_CONCAT': <function MySQL.Parser.<lambda>>, 'VALUES': <function MySQL.Parser.<lambda>>, 'JSON_VALUE': <function MySQL.Parser.<lambda>>}
STATEMENT_PARSERS = {<TokenType.ALTER: 'ALTER'>: <function Parser.<lambda>>, <TokenType.BEGIN: 'BEGIN'>: <function Parser.<lambda>>, <TokenType.CACHE: 'CACHE'>: <function Parser.<lambda>>, <TokenType.COMMENT: 'COMMENT'>: <function Parser.<lambda>>, <TokenType.COMMIT: 'COMMIT'>: <function Parser.<lambda>>, <TokenType.COPY: 'COPY'>: <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.GRANT: 'GRANT'>: <function Parser.<lambda>>, <TokenType.INSERT: 'INSERT'>: <function Parser.<lambda>>, <TokenType.KILL: 'KILL'>: <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.REFRESH: 'REFRESH'>: <function Parser.<lambda>>, <TokenType.ROLLBACK: 'ROLLBACK'>: <function Parser.<lambda>>, <TokenType.SET: 'SET'>: <function Parser.<lambda>>, <TokenType.TRUNCATE: 'TRUNCATE'>: <function Parser.<lambda>>, <TokenType.UNCACHE: 'UNCACHE'>: <function Parser.<lambda>>, <TokenType.UPDATE: 'UPDATE'>: <function Parser.<lambda>>, <TokenType.USE: 'USE'>: <function Parser.<lambda>>, <TokenType.SEMICOLON: 'SEMICOLON'>: <function Parser.<lambda>>, <TokenType.SHOW: 'SHOW'>: <function MySQL.Parser.<lambda>>}
SHOW_PARSERS = {'BINARY LOGS': <function _show_parser.<locals>._parse>, 'MASTER LOGS': <function _show_parser.<locals>._parse>, 'BINLOG EVENTS': <function _show_parser.<locals>._parse>, 'CHARACTER SET': <function _show_parser.<locals>._parse>, 'CHARSET': <function _show_parser.<locals>._parse>, 'COLLATION': <function _show_parser.<locals>._parse>, 'FULL COLUMNS': <function _show_parser.<locals>._parse>, 'COLUMNS': <function _show_parser.<locals>._parse>, 'CREATE DATABASE': <function _show_parser.<locals>._parse>, 'CREATE EVENT': <function _show_parser.<locals>._parse>, 'CREATE FUNCTION': <function _show_parser.<locals>._parse>, 'CREATE PROCEDURE': <function _show_parser.<locals>._parse>, 'CREATE TABLE': <function _show_parser.<locals>._parse>, 'CREATE TRIGGER': <function _show_parser.<locals>._parse>, 'CREATE VIEW': <function _show_parser.<locals>._parse>, 'DATABASES': <function _show_parser.<locals>._parse>, 'SCHEMAS': <function _show_parser.<locals>._parse>, 'ENGINE': <function _show_parser.<locals>._parse>, 'STORAGE ENGINES': <function _show_parser.<locals>._parse>, 'ENGINES': <function _show_parser.<locals>._parse>, 'ERRORS': <function _show_parser.<locals>._parse>, 'EVENTS': <function _show_parser.<locals>._parse>, 'FUNCTION CODE': <function _show_parser.<locals>._parse>, 'FUNCTION STATUS': <function _show_parser.<locals>._parse>, 'GRANTS': <function _show_parser.<locals>._parse>, 'INDEX': <function _show_parser.<locals>._parse>, 'MASTER STATUS': <function _show_parser.<locals>._parse>, 'OPEN TABLES': <function _show_parser.<locals>._parse>, 'PLUGINS': <function _show_parser.<locals>._parse>, 'PROCEDURE CODE': <function _show_parser.<locals>._parse>, 'PROCEDURE STATUS': <function _show_parser.<locals>._parse>, 'PRIVILEGES': <function _show_parser.<locals>._parse>, 'FULL PROCESSLIST': <function _show_parser.<locals>._parse>, 'PROCESSLIST': <function _show_parser.<locals>._parse>, 'PROFILE': <function _show_parser.<locals>._parse>, 'PROFILES': <function _show_parser.<locals>._parse>, 'RELAYLOG EVENTS': <function _show_parser.<locals>._parse>, 'REPLICAS': <function _show_parser.<locals>._parse>, 'SLAVE HOSTS': <function _show_parser.<locals>._parse>, 'REPLICA STATUS': <function _show_parser.<locals>._parse>, 'SLAVE STATUS': <function _show_parser.<locals>._parse>, 'GLOBAL STATUS': <function _show_parser.<locals>._parse>, 'SESSION STATUS': <function _show_parser.<locals>._parse>, 'STATUS': <function _show_parser.<locals>._parse>, 'TABLE STATUS': <function _show_parser.<locals>._parse>, 'FULL TABLES': <function _show_parser.<locals>._parse>, 'TABLES': <function _show_parser.<locals>._parse>, 'TRIGGERS': <function _show_parser.<locals>._parse>, 'GLOBAL VARIABLES': <function _show_parser.<locals>._parse>, 'SESSION VARIABLES': <function _show_parser.<locals>._parse>, 'VARIABLES': <function _show_parser.<locals>._parse>, 'WARNINGS': <function _show_parser.<locals>._parse>}
PROPERTY_PARSERS = {'ALLOWED_VALUES': <function Parser.<lambda>>, 'ALGORITHM': <function Parser.<lambda>>, 'AUTO': <function Parser.<lambda>>, 'AUTO_INCREMENT': <function Parser.<lambda>>, 'BACKUP': <function Parser.<lambda>>, 'BLOCKCOMPRESSION': <function Parser.<lambda>>, 'CHARSET': <function Parser.<lambda>>, 'CHARACTER SET': <function Parser.<lambda>>, 'CHECKSUM': <function Parser.<lambda>>, 'CLUSTER BY': <function Parser.<lambda>>, 'CLUSTERED': <function Parser.<lambda>>, 'COLLATE': <function Parser.<lambda>>, 'COMMENT': <function Parser.<lambda>>, 'CONTAINS': <function Parser.<lambda>>, 'COPY': <function Parser.<lambda>>, 'DATABLOCKSIZE': <function Parser.<lambda>>, 'DATA_DELETION': <function Parser.<lambda>>, 'DEFINER': <function Parser.<lambda>>, 'DETERMINISTIC': <function Parser.<lambda>>, 'DISTRIBUTED': <function Parser.<lambda>>, 'DUPLICATE': <function Parser.<lambda>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, 'EMPTY': <function Parser.<lambda>>, 'ENGINE': <function Parser.<lambda>>, 'EXECUTE': <function Parser.<lambda>>, 'EXTERNAL': <function Parser.<lambda>>, 'FALLBACK': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'FREESPACE': <function Parser.<lambda>>, 'GLOBAL': <function Parser.<lambda>>, 'HEAP': <function Parser.<lambda>>, 'ICEBERG': <function Parser.<lambda>>, 'IMMUTABLE': <function Parser.<lambda>>, 'INHERITS': <function Parser.<lambda>>, 'INPUT': <function Parser.<lambda>>, 'JOURNAL': <function Parser.<lambda>>, 'LANGUAGE': <function Parser.<lambda>>, 'LAYOUT': <function Parser.<lambda>>, 'LIFETIME': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'LOCATION': <function Parser.<lambda>>, 'LOCK': <function MySQL.Parser.<lambda>>, 'LOCKING': <function Parser.<lambda>>, 'LOG': <function Parser.<lambda>>, 'MATERIALIZED': <function Parser.<lambda>>, 'MERGEBLOCKRATIO': <function Parser.<lambda>>, 'MODIFIES': <function Parser.<lambda>>, 'MULTISET': <function Parser.<lambda>>, 'NO': <function Parser.<lambda>>, 'ON': <function Parser.<lambda>>, 'ORDER BY': <function Parser.<lambda>>, 'OUTPUT': <function Parser.<lambda>>, 'PARTITION': <function Parser.<lambda>>, 'PARTITION BY': <function Parser.<lambda>>, 'PARTITIONED BY': <function Parser.<lambda>>, 'PARTITIONED_BY': <function Parser.<lambda>>, 'PRIMARY KEY': <function Parser.<lambda>>, 'RANGE': <function Parser.<lambda>>, 'READS': <function Parser.<lambda>>, 'REMOTE': <function Parser.<lambda>>, 'RETURNS': <function Parser.<lambda>>, 'STRICT': <function Parser.<lambda>>, 'STREAMING': <function Parser.<lambda>>, 'ROW': <function Parser.<lambda>>, 'ROW_FORMAT': <function Parser.<lambda>>, 'SAMPLE': <function Parser.<lambda>>, 'SECURE': <function Parser.<lambda>>, 'SECURITY': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'SETTINGS': <function Parser.<lambda>>, 'SHARING': <function Parser.<lambda>>, 'SORTKEY': <function Parser.<lambda>>, 'SOURCE': <function Parser.<lambda>>, 'STABLE': <function Parser.<lambda>>, 'STORED': <function Parser.<lambda>>, 'SYSTEM_VERSIONING': <function Parser.<lambda>>, 'TBLPROPERTIES': <function Parser.<lambda>>, 'TEMP': <function Parser.<lambda>>, 'TEMPORARY': <function Parser.<lambda>>, 'TO': <function Parser.<lambda>>, 'TRANSIENT': <function Parser.<lambda>>, 'TRANSFORM': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'USING': <function Parser.<lambda>>, 'UNLOGGED': <function Parser.<lambda>>, 'VOLATILE': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>}
SET_PARSERS = {'GLOBAL': <function Parser.<lambda>>, 'LOCAL': <function Parser.<lambda>>, 'SESSION': <function Parser.<lambda>>, 'TRANSACTION': <function Parser.<lambda>>, 'PERSIST': <function MySQL.Parser.<lambda>>, 'PERSIST_ONLY': <function MySQL.Parser.<lambda>>, 'CHARACTER SET': <function MySQL.Parser.<lambda>>, 'CHARSET': <function MySQL.Parser.<lambda>>, 'NAMES': <function MySQL.Parser.<lambda>>}
CONSTRAINT_PARSERS = {'AUTOINCREMENT': <function Parser.<lambda>>, 'AUTO_INCREMENT': <function Parser.<lambda>>, 'CASESPECIFIC': <function Parser.<lambda>>, 'CHARACTER SET': <function Parser.<lambda>>, 'CHECK': <function Parser.<lambda>>, 'COLLATE': <function Parser.<lambda>>, 'COMMENT': <function Parser.<lambda>>, 'COMPRESS': <function Parser.<lambda>>, 'CLUSTERED': <function Parser.<lambda>>, 'NONCLUSTERED': <function Parser.<lambda>>, 'DEFAULT': <function Parser.<lambda>>, 'ENCODE': <function Parser.<lambda>>, 'EPHEMERAL': <function Parser.<lambda>>, 'EXCLUDE': <function Parser.<lambda>>, 'FOREIGN KEY': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'GENERATED': <function Parser.<lambda>>, 'IDENTITY': <function Parser.<lambda>>, 'INLINE': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'NOT': <function Parser.<lambda>>, 'NULL': <function Parser.<lambda>>, 'ON': <function Parser.<lambda>>, 'PATH': <function Parser.<lambda>>, 'PERIOD': <function Parser.<lambda>>, 'PRIMARY KEY': <function Parser.<lambda>>, 'REFERENCES': <function Parser.<lambda>>, 'TITLE': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'UNIQUE': <function Parser.<lambda>>, 'UPPERCASE': <function Parser.<lambda>>, 'WATERMARK': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>, 'FULLTEXT': <function MySQL.Parser.<lambda>>, 'INDEX': <function MySQL.Parser.<lambda>>, 'KEY': <function MySQL.Parser.<lambda>>, 'SPATIAL': <function MySQL.Parser.<lambda>>}
ALTER_PARSERS = {'ADD': <function Parser.<lambda>>, 'AS': <function Parser.<lambda>>, 'ALTER': <function Parser.<lambda>>, 'CLUSTER BY': <function Parser.<lambda>>, 'DELETE': <function Parser.<lambda>>, 'DROP': <function Parser.<lambda>>, 'RENAME': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'SWAP': <function Parser.<lambda>>, 'MODIFY': <function MySQL.Parser.<lambda>>}
SCHEMA_UNNAMED_CONSTRAINTS = {'PRIMARY KEY', 'FULLTEXT', 'SPATIAL', 'LIKE', 'CHECK', 'KEY', 'EXCLUDE', 'UNIQUE', 'FOREIGN KEY', 'WATERMARK', 'PERIOD', 'INDEX'}
PROFILE_TYPES: Dict[str, Sequence[Union[Sequence[str], str]]] = {'ALL': (), 'CPU': (), 'IPC': (), 'MEMORY': (), 'SOURCE': (), 'SWAPS': (), 'BLOCK': ('IO',), 'CONTEXT': ('SWITCHES',), 'PAGE': ('FAULTS',)}
TYPE_TOKENS = {<TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.NESTED: 'NESTED'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.MAP: 'MAP'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.YEAR: 'YEAR'>, <TokenType.BIT: 'BIT'>, <TokenType.SET: 'SET'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.INT128: 'INT128'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.UNION: 'UNION'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.POINT: 'POINT'>, <TokenType.TIME: 'TIME'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UINT: 'UINT'>, <TokenType.CHAR: 'CHAR'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.MONEY: 'MONEY'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.UUID: 'UUID'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.ENUM: 'ENUM'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.IPV4: 'IPV4'>, <TokenType.JSON: 'JSON'>, <TokenType.TEXT: 'TEXT'>, <TokenType.RING: 'RING'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.DATE32: 'DATE32'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.DATE: 'DATE'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.INET: 'INET'>, <TokenType.XML: 'XML'>, <TokenType.RANGE: 'RANGE'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.BINARY: 'BINARY'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.UINT128: 'UINT128'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.INT256: 'INT256'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.INT: 'INT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.NULL: 'NULL'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.NAME: 'NAME'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.TIMETZ: 'TIMETZ'>}
ENUM_TYPE_TOKENS = {<TokenType.ENUM8: 'ENUM8'>, <TokenType.ENUM: 'ENUM'>, <TokenType.SET: 'SET'>, <TokenType.ENUM16: 'ENUM16'>}
OPERATION_MODIFIERS = {'SQL_SMALL_RESULT', 'HIGH_PRIORITY', 'SQL_NO_CACHE', 'STRAIGHT_JOIN', 'SQL_CALC_FOUND_ROWS', 'SQL_BIG_RESULT', 'SQL_BUFFER_RESULT'}
LOG_DEFAULTS_TO_LN = True
STRING_ALIASES = True
VALUES_FOLLOWED_BY_PAREN = False
SUPPORTS_PARTITION_SELECTION = True
SHOW_TRIE: Dict = {'BINARY': {'LOGS': {0: True}}, 'MASTER': {'LOGS': {0: True}, 'STATUS': {0: True}}, 'BINLOG': {'EVENTS': {0: True}}, 'CHARACTER': {'SET': {0: True}}, 'CHARSET': {0: True}, 'COLLATION': {0: True}, 'FULL': {'COLUMNS': {0: True}, 'PROCESSLIST': {0: True}, 'TABLES': {0: True}}, 'COLUMNS': {0: True}, 'CREATE': {'DATABASE': {0: True}, 'EVENT': {0: True}, 'FUNCTION': {0: True}, 'PROCEDURE': {0: True}, 'TABLE': {0: True}, 'TRIGGER': {0: True}, 'VIEW': {0: True}}, 'DATABASES': {0: True}, 'SCHEMAS': {0: True}, 'ENGINE': {0: True}, 'STORAGE': {'ENGINES': {0: True}}, 'ENGINES': {0: True}, 'ERRORS': {0: True}, 'EVENTS': {0: True}, 'FUNCTION': {'CODE': {0: True}, 'STATUS': {0: True}}, 'GRANTS': {0: True}, 'INDEX': {0: True}, 'OPEN': {'TABLES': {0: True}}, 'PLUGINS': {0: True}, 'PROCEDURE': {'CODE': {0: True}, 'STATUS': {0: True}}, 'PRIVILEGES': {0: True}, 'PROCESSLIST': {0: True}, 'PROFILE': {0: True}, 'PROFILES': {0: True}, 'RELAYLOG': {'EVENTS': {0: True}}, 'REPLICAS': {0: True}, 'SLAVE': {'HOSTS': {0: True}, 'STATUS': {0: True}}, 'REPLICA': {'STATUS': {0: True}}, 'GLOBAL': {'STATUS': {0: True}, 'VARIABLES': {0: True}}, 'SESSION': {'STATUS': {0: True}, 'VARIABLES': {0: True}}, 'STATUS': {0: True}, 'TABLE': {'STATUS': {0: True}}, 'TABLES': {0: True}, 'TRIGGERS': {0: True}, 'VARIABLES': {0: True}, 'WARNINGS': {0: True}}
SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}, 'PERSIST': {0: True}, 'PERSIST_ONLY': {0: True}, 'CHARACTER': {'SET': {0: True}}, 'CHARSET': {0: True}, 'NAMES': {0: True}}
Inherited Members
sqlglot.parser.Parser
Parser
NO_PAREN_FUNCTIONS
STRUCT_TYPE_TOKENS
NESTED_TYPE_TOKENS
AGGREGATE_TYPE_TOKENS
SIGNED_TO_UNSIGNED_TYPE_TOKEN
SUBQUERY_PREDICATES
RESERVED_TOKENS
DB_CREATABLES
CREATABLES
ALTERABLES
ID_VAR_TOKENS
INTERVAL_VARS
ALIAS_TOKENS
ARRAY_CONSTRUCTORS
COMMENT_TABLE_ALIAS_TOKENS
UPDATE_ALIAS_TOKENS
TRIM_TYPES
ASSIGNMENT
EQUALITY
COMPARISON
BITWISE
TERM
FACTOR
EXPONENT
TIMES
TIMESTAMPS
SET_OPERATIONS
JOIN_METHODS
JOIN_SIDES
JOIN_KINDS
JOIN_HINTS
LAMBDAS
COLUMN_OPERATORS
EXPRESSION_PARSERS
UNARY_PARSERS
STRING_PARSERS
NUMERIC_PARSERS
PRIMARY_PARSERS
PLACEHOLDER_PARSERS
ALTER_ALTER_PARSERS
NO_PAREN_FUNCTION_PARSERS
INVALID_FUNC_NAME_TOKENS
FUNCTIONS_WITH_ALIASED_ARGS
KEY_VALUE_DEFINITIONS
QUERY_MODIFIER_PARSERS
TYPE_LITERAL_PARSERS
TYPE_CONVERTERS
DDL_SELECT_TOKENS
PRE_VOLATILE_TOKENS
TRANSACTION_KIND
TRANSACTION_CHARACTERISTICS
CONFLICT_ACTIONS
CREATE_SEQUENCE
ISOLATED_LOADING_OPTIONS
USABLES
CAST_ACTIONS
SCHEMA_BINDING_OPTIONS
PROCEDURE_OPTIONS
EXECUTE_AS_OPTIONS
KEY_CONSTRAINT_OPTIONS
INSERT_ALTERNATIVES
CLONE_KEYWORDS
HISTORICAL_DATA_PREFIX
HISTORICAL_DATA_KIND
OPCLASS_FOLLOW_KEYWORDS
OPTYPE_FOLLOW_TOKENS
TABLE_INDEX_HINT_TOKENS
VIEW_ATTRIBUTES
WINDOW_ALIAS_TOKENS
WINDOW_BEFORE_PAREN_TOKENS
WINDOW_SIDES
JSON_KEY_VALUE_SEPARATOR_TOKENS
FETCH_TOKENS
ADD_CONSTRAINT_TOKENS
DISTINCT_TOKENS
NULL_TOKENS
UNNEST_OFFSET_ALIAS_TOKENS
SELECT_START_TOKENS
COPY_INTO_VARLEN_OPTIONS
IS_JSON_PREDICATE_KIND
ODBC_DATETIME_LITERALS
ON_CONDITION_TOKENS
PRIVILEGE_FOLLOW_TOKENS
DESCRIBE_STYLES
STRICT_CAST
PREFIXED_PIVOT_COLUMNS
IDENTIFY_PIVOT_STRINGS
ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
TABLESAMPLE_CSV
DEFAULT_SAMPLING_METHOD
SET_REQUIRES_ASSIGNMENT_DELIMITER
TRIM_PATTERN_FIRST
MODIFIERS_ATTACHED_TO_SET_OP
SET_OP_MODIFIERS
NO_PAREN_IF_COMMANDS
JSON_ARROWS_REQUIRE_JSON_TYPE
COLON_IS_VARIANT_EXTRACT
SUPPORTS_IMPLICIT_UNNEST
INTERVAL_SPANS
WRAPPED_TRANSFORM_COLUMN_CONSTRAINT
error_level
error_message_context
max_errors
dialect
reset
parse
parse_into
check_errors
raise_error
expression
validate_expression
errors
sql
class MySQL.Generator(sqlglot.generator.Generator):
 695    class Generator(generator.Generator):
 696        INTERVAL_ALLOWS_PLURAL_FORM = False
 697        LOCKING_READS_SUPPORTED = True
 698        NULL_ORDERING_SUPPORTED = None
 699        JOIN_HINTS = False
 700        TABLE_HINTS = True
 701        DUPLICATE_KEY_UPDATE_WITH_SET = False
 702        QUERY_HINT_SEP = " "
 703        VALUES_AS_TABLE = False
 704        NVL2_SUPPORTED = False
 705        LAST_DAY_SUPPORTS_DATE_PART = False
 706        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
 707        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
 708        JSON_KEY_VALUE_PAIR_SEP = ","
 709        SUPPORTS_TO_NUMBER = False
 710        PARSE_JSON_NAME: t.Optional[str] = None
 711        PAD_FILL_PATTERN_IS_REQUIRED = True
 712        WRAP_DERIVED_VALUES = False
 713        VARCHAR_REQUIRES_SIZE = True
 714        SUPPORTS_MEDIAN = False
 715
 716        TRANSFORMS = {
 717            **generator.Generator.TRANSFORMS,
 718            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
 719            exp.CurrentDate: no_paren_current_date_sql,
 720            exp.DateDiff: _remove_ts_or_ds_to_date(
 721                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
 722            ),
 723            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
 724            exp.DateStrToDate: datestrtodate_sql,
 725            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
 726            exp.DateTrunc: _date_trunc_sql,
 727            exp.Day: _remove_ts_or_ds_to_date(),
 728            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
 729            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
 730            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
 731            exp.GroupConcat: lambda self,
 732            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
 733            exp.ILike: no_ilike_sql,
 734            exp.JSONExtractScalar: arrow_json_extract_sql,
 735            exp.Length: rename_func("CHAR_LENGTH"),
 736            exp.Max: max_or_greatest,
 737            exp.Min: min_or_least,
 738            exp.Month: _remove_ts_or_ds_to_date(),
 739            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
 740            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
 741            exp.NumberToStr: rename_func("FORMAT"),
 742            exp.Pivot: no_pivot_sql,
 743            exp.Select: transforms.preprocess(
 744                [
 745                    transforms.eliminate_distinct_on,
 746                    transforms.eliminate_semi_and_anti_joins,
 747                    transforms.eliminate_qualify,
 748                    transforms.eliminate_full_outer_join,
 749                    transforms.unnest_generate_date_array_using_recursive_cte,
 750                ]
 751            ),
 752            exp.StrPosition: strposition_to_locate_sql,
 753            exp.StrToDate: _str_to_date_sql,
 754            exp.StrToTime: _str_to_date_sql,
 755            exp.Stuff: rename_func("INSERT"),
 756            exp.TableSample: no_tablesample_sql,
 757            exp.TimeFromParts: rename_func("MAKETIME"),
 758            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
 759            exp.TimestampDiff: lambda self, e: self.func(
 760                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
 761            ),
 762            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
 763            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
 764            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
 765                self,
 766                e,
 767                include_precision=not e.args.get("zone"),
 768            ),
 769            exp.TimeToStr: _remove_ts_or_ds_to_date(
 770                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
 771            ),
 772            exp.Trim: trim_sql,
 773            exp.TryCast: no_trycast_sql,
 774            exp.TsOrDsAdd: date_add_sql("ADD"),
 775            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
 776            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
 777            exp.UnixToTime: _unix_to_time_sql,
 778            exp.Week: _remove_ts_or_ds_to_date(),
 779            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
 780            exp.Year: _remove_ts_or_ds_to_date(),
 781        }
 782
 783        UNSIGNED_TYPE_MAPPING = {
 784            exp.DataType.Type.UBIGINT: "BIGINT",
 785            exp.DataType.Type.UINT: "INT",
 786            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
 787            exp.DataType.Type.USMALLINT: "SMALLINT",
 788            exp.DataType.Type.UTINYINT: "TINYINT",
 789            exp.DataType.Type.UDECIMAL: "DECIMAL",
 790        }
 791
 792        TIMESTAMP_TYPE_MAPPING = {
 793            exp.DataType.Type.DATETIME2: "DATETIME",
 794            exp.DataType.Type.SMALLDATETIME: "DATETIME",
 795            exp.DataType.Type.TIMESTAMP: "DATETIME",
 796            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
 797            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
 798        }
 799
 800        TYPE_MAPPING = {
 801            **generator.Generator.TYPE_MAPPING,
 802            **UNSIGNED_TYPE_MAPPING,
 803            **TIMESTAMP_TYPE_MAPPING,
 804        }
 805
 806        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
 807        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
 808        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
 809        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
 810        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
 811        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
 812
 813        PROPERTIES_LOCATION = {
 814            **generator.Generator.PROPERTIES_LOCATION,
 815            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
 816            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
 817        }
 818
 819        LIMIT_FETCH = "LIMIT"
 820
 821        LIMIT_ONLY_LITERALS = True
 822
 823        CHAR_CAST_MAPPING = dict.fromkeys(
 824            (
 825                exp.DataType.Type.LONGTEXT,
 826                exp.DataType.Type.LONGBLOB,
 827                exp.DataType.Type.MEDIUMBLOB,
 828                exp.DataType.Type.MEDIUMTEXT,
 829                exp.DataType.Type.TEXT,
 830                exp.DataType.Type.TINYBLOB,
 831                exp.DataType.Type.TINYTEXT,
 832                exp.DataType.Type.VARCHAR,
 833            ),
 834            "CHAR",
 835        )
 836        SIGNED_CAST_MAPPING = dict.fromkeys(
 837            (
 838                exp.DataType.Type.BIGINT,
 839                exp.DataType.Type.BOOLEAN,
 840                exp.DataType.Type.INT,
 841                exp.DataType.Type.SMALLINT,
 842                exp.DataType.Type.TINYINT,
 843                exp.DataType.Type.MEDIUMINT,
 844            ),
 845            "SIGNED",
 846        )
 847
 848        # MySQL doesn't support many datatypes in cast.
 849        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
 850        CAST_MAPPING = {
 851            **CHAR_CAST_MAPPING,
 852            **SIGNED_CAST_MAPPING,
 853            exp.DataType.Type.UBIGINT: "UNSIGNED",
 854        }
 855
 856        TIMESTAMP_FUNC_TYPES = {
 857            exp.DataType.Type.TIMESTAMPTZ,
 858            exp.DataType.Type.TIMESTAMPLTZ,
 859        }
 860
 861        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
 862        RESERVED_KEYWORDS = {
 863            "accessible",
 864            "add",
 865            "all",
 866            "alter",
 867            "analyze",
 868            "and",
 869            "as",
 870            "asc",
 871            "asensitive",
 872            "before",
 873            "between",
 874            "bigint",
 875            "binary",
 876            "blob",
 877            "both",
 878            "by",
 879            "call",
 880            "cascade",
 881            "case",
 882            "change",
 883            "char",
 884            "character",
 885            "check",
 886            "collate",
 887            "column",
 888            "condition",
 889            "constraint",
 890            "continue",
 891            "convert",
 892            "create",
 893            "cross",
 894            "cube",
 895            "cume_dist",
 896            "current_date",
 897            "current_time",
 898            "current_timestamp",
 899            "current_user",
 900            "cursor",
 901            "database",
 902            "databases",
 903            "day_hour",
 904            "day_microsecond",
 905            "day_minute",
 906            "day_second",
 907            "dec",
 908            "decimal",
 909            "declare",
 910            "default",
 911            "delayed",
 912            "delete",
 913            "dense_rank",
 914            "desc",
 915            "describe",
 916            "deterministic",
 917            "distinct",
 918            "distinctrow",
 919            "div",
 920            "double",
 921            "drop",
 922            "dual",
 923            "each",
 924            "else",
 925            "elseif",
 926            "empty",
 927            "enclosed",
 928            "escaped",
 929            "except",
 930            "exists",
 931            "exit",
 932            "explain",
 933            "false",
 934            "fetch",
 935            "first_value",
 936            "float",
 937            "float4",
 938            "float8",
 939            "for",
 940            "force",
 941            "foreign",
 942            "from",
 943            "fulltext",
 944            "function",
 945            "generated",
 946            "get",
 947            "grant",
 948            "group",
 949            "grouping",
 950            "groups",
 951            "having",
 952            "high_priority",
 953            "hour_microsecond",
 954            "hour_minute",
 955            "hour_second",
 956            "if",
 957            "ignore",
 958            "in",
 959            "index",
 960            "infile",
 961            "inner",
 962            "inout",
 963            "insensitive",
 964            "insert",
 965            "int",
 966            "int1",
 967            "int2",
 968            "int3",
 969            "int4",
 970            "int8",
 971            "integer",
 972            "intersect",
 973            "interval",
 974            "into",
 975            "io_after_gtids",
 976            "io_before_gtids",
 977            "is",
 978            "iterate",
 979            "join",
 980            "json_table",
 981            "key",
 982            "keys",
 983            "kill",
 984            "lag",
 985            "last_value",
 986            "lateral",
 987            "lead",
 988            "leading",
 989            "leave",
 990            "left",
 991            "like",
 992            "limit",
 993            "linear",
 994            "lines",
 995            "load",
 996            "localtime",
 997            "localtimestamp",
 998            "lock",
 999            "long",
1000            "longblob",
1001            "longtext",
1002            "loop",
1003            "low_priority",
1004            "master_bind",
1005            "master_ssl_verify_server_cert",
1006            "match",
1007            "maxvalue",
1008            "mediumblob",
1009            "mediumint",
1010            "mediumtext",
1011            "middleint",
1012            "minute_microsecond",
1013            "minute_second",
1014            "mod",
1015            "modifies",
1016            "natural",
1017            "not",
1018            "no_write_to_binlog",
1019            "nth_value",
1020            "ntile",
1021            "null",
1022            "numeric",
1023            "of",
1024            "on",
1025            "optimize",
1026            "optimizer_costs",
1027            "option",
1028            "optionally",
1029            "or",
1030            "order",
1031            "out",
1032            "outer",
1033            "outfile",
1034            "over",
1035            "partition",
1036            "percent_rank",
1037            "precision",
1038            "primary",
1039            "procedure",
1040            "purge",
1041            "range",
1042            "rank",
1043            "read",
1044            "reads",
1045            "read_write",
1046            "real",
1047            "recursive",
1048            "references",
1049            "regexp",
1050            "release",
1051            "rename",
1052            "repeat",
1053            "replace",
1054            "require",
1055            "resignal",
1056            "restrict",
1057            "return",
1058            "revoke",
1059            "right",
1060            "rlike",
1061            "row",
1062            "rows",
1063            "row_number",
1064            "schema",
1065            "schemas",
1066            "second_microsecond",
1067            "select",
1068            "sensitive",
1069            "separator",
1070            "set",
1071            "show",
1072            "signal",
1073            "smallint",
1074            "spatial",
1075            "specific",
1076            "sql",
1077            "sqlexception",
1078            "sqlstate",
1079            "sqlwarning",
1080            "sql_big_result",
1081            "sql_calc_found_rows",
1082            "sql_small_result",
1083            "ssl",
1084            "starting",
1085            "stored",
1086            "straight_join",
1087            "system",
1088            "table",
1089            "terminated",
1090            "then",
1091            "tinyblob",
1092            "tinyint",
1093            "tinytext",
1094            "to",
1095            "trailing",
1096            "trigger",
1097            "true",
1098            "undo",
1099            "union",
1100            "unique",
1101            "unlock",
1102            "unsigned",
1103            "update",
1104            "usage",
1105            "use",
1106            "using",
1107            "utc_date",
1108            "utc_time",
1109            "utc_timestamp",
1110            "values",
1111            "varbinary",
1112            "varchar",
1113            "varcharacter",
1114            "varying",
1115            "virtual",
1116            "when",
1117            "where",
1118            "while",
1119            "window",
1120            "with",
1121            "write",
1122            "xor",
1123            "year_month",
1124            "zerofill",
1125        }
1126
1127        def array_sql(self, expression: exp.Array) -> str:
1128            self.unsupported("Arrays are not supported by MySQL")
1129            return self.function_fallback_sql(expression)
1130
1131        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
1132            self.unsupported("Array operations are not supported by MySQL")
1133            return self.function_fallback_sql(expression)
1134
1135        def dpipe_sql(self, expression: exp.DPipe) -> str:
1136            return self.func("CONCAT", *expression.flatten())
1137
1138        def extract_sql(self, expression: exp.Extract) -> str:
1139            unit = expression.name
1140            if unit and unit.lower() == "epoch":
1141                return self.func("UNIX_TIMESTAMP", expression.expression)
1142
1143            return super().extract_sql(expression)
1144
1145        def datatype_sql(self, expression: exp.DataType) -> str:
1146            if (
1147                self.VARCHAR_REQUIRES_SIZE
1148                and expression.is_type(exp.DataType.Type.VARCHAR)
1149                and not expression.expressions
1150            ):
1151                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
1152                return "TEXT"
1153
1154            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
1155            result = super().datatype_sql(expression)
1156            if expression.this in self.UNSIGNED_TYPE_MAPPING:
1157                result = f"{result} UNSIGNED"
1158
1159            return result
1160
1161        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
1162            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
1163
1164        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
1165            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
1166                return self.func("TIMESTAMP", expression.this)
1167
1168            to = self.CAST_MAPPING.get(expression.to.this)
1169
1170            if to:
1171                expression.to.set("this", to)
1172            return super().cast_sql(expression)
1173
1174        def show_sql(self, expression: exp.Show) -> str:
1175            this = f" {expression.name}"
1176            full = " FULL" if expression.args.get("full") else ""
1177            global_ = " GLOBAL" if expression.args.get("global") else ""
1178
1179            target = self.sql(expression, "target")
1180            target = f" {target}" if target else ""
1181            if expression.name in ("COLUMNS", "INDEX"):
1182                target = f" FROM{target}"
1183            elif expression.name == "GRANTS":
1184                target = f" FOR{target}"
1185
1186            db = self._prefixed_sql("FROM", expression, "db")
1187
1188            like = self._prefixed_sql("LIKE", expression, "like")
1189            where = self.sql(expression, "where")
1190
1191            types = self.expressions(expression, key="types")
1192            types = f" {types}" if types else types
1193            query = self._prefixed_sql("FOR QUERY", expression, "query")
1194
1195            if expression.name == "PROFILE":
1196                offset = self._prefixed_sql("OFFSET", expression, "offset")
1197                limit = self._prefixed_sql("LIMIT", expression, "limit")
1198            else:
1199                offset = ""
1200                limit = self._oldstyle_limit_sql(expression)
1201
1202            log = self._prefixed_sql("IN", expression, "log")
1203            position = self._prefixed_sql("FROM", expression, "position")
1204
1205            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
1206
1207            if expression.name == "ENGINE":
1208                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
1209            else:
1210                mutex_or_status = ""
1211
1212            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
1213
1214        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
1215            dtype = self.sql(expression, "dtype")
1216            if not dtype:
1217                return super().altercolumn_sql(expression)
1218
1219            this = self.sql(expression, "this")
1220            return f"MODIFY COLUMN {this} {dtype}"
1221
1222        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
1223            sql = self.sql(expression, arg)
1224            return f" {prefix} {sql}" if sql else ""
1225
1226        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
1227            limit = self.sql(expression, "limit")
1228            offset = self.sql(expression, "offset")
1229            if limit:
1230                limit_offset = f"{offset}, {limit}" if offset else limit
1231                return f" LIMIT {limit_offset}"
1232            return ""
1233
1234        def chr_sql(self, expression: exp.Chr) -> str:
1235            this = self.expressions(sqls=[expression.this] + expression.expressions)
1236            charset = expression.args.get("charset")
1237            using = f" USING {self.sql(charset)}" if charset else ""
1238            return f"CHAR({this}{using})"
1239
1240        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
1241            unit = expression.args.get("unit")
1242
1243            # Pick an old-enough date to avoid negative timestamp diffs
1244            start_ts = "'0000-01-01 00:00:00'"
1245
1246            # Source: https://stackoverflow.com/a/32955740
1247            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
1248            interval = exp.Interval(this=timestamp_diff, unit=unit)
1249            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
1250
1251            return self.sql(dateadd)
1252
1253        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
1254            from_tz = expression.args.get("source_tz")
1255            to_tz = expression.args.get("target_tz")
1256            dt = expression.args.get("timestamp")
1257
1258            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
1259
1260        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
1261            self.unsupported("AT TIME ZONE is not supported by MySQL")
1262            return self.sql(expression.this)

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

Arguments:
  • pretty: Whether 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 to normalize identifiers to lowercase. Default: False.
  • pad: The pad size in a formatted string. For example, this affects the indentation of a projection in a query, relative to its nesting level. Default: 2.
  • indent: The indentation size in a formatted string. For example, this affects the indentation of subqueries and filters under a WHERE clause. Default: 2.
  • normalize_functions: How to normalize 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: Whether 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 to preserve comments in the output SQL code. Default: True
INTERVAL_ALLOWS_PLURAL_FORM = False
LOCKING_READS_SUPPORTED = True
NULL_ORDERING_SUPPORTED = None
JOIN_HINTS = False
TABLE_HINTS = True
DUPLICATE_KEY_UPDATE_WITH_SET = False
QUERY_HINT_SEP = ' '
VALUES_AS_TABLE = False
NVL2_SUPPORTED = False
LAST_DAY_SUPPORTS_DATE_PART = False
JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
JSON_PATH_BRACKETED_KEY_SUPPORTED = False
JSON_KEY_VALUE_PAIR_SEP = ','
SUPPORTS_TO_NUMBER = False
PARSE_JSON_NAME: Optional[str] = None
PAD_FILL_PATTERN_IS_REQUIRED = True
WRAP_DERIVED_VALUES = False
VARCHAR_REQUIRES_SIZE = True
SUPPORTS_MEDIAN = False
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathFilter'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRecursive'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathScript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSelector'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSlice'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathUnion'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathWildcard'>: <function <lambda>>, <class 'sqlglot.expressions.AllowedValuesProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayContainsAll'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayOverlaps'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.BackupProperty'>: <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.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ConnectByRoot'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DynamicProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EmptyProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EphemeralColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExcludeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Except'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Intersect'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Int64'>: <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.NonClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NotForReplicationColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Operator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PivotAny'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ProjectionPolicyColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecureProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetConfigProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SharingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Stream'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StreamingTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SwapTable'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Tags'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Union'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Uuid'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithProcedureOptions'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayAgg'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentDate'>: <function no_paren_current_date_sql>, <class 'sqlglot.expressions.DateDiff'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateAdd'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateStrToDate'>: <function datestrtodate_sql>, <class 'sqlglot.expressions.DateSub'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateTrunc'>: <function _date_trunc_sql>, <class 'sqlglot.expressions.Day'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfMonth'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfWeek'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.GroupConcat'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.ILike'>: <function no_ilike_sql>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.Length'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.Month'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.NullSafeEQ'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.NullSafeNEQ'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.NumberToStr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.StrPosition'>: <function strposition_to_locate_sql>, <class 'sqlglot.expressions.StrToDate'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.StrToTime'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.Stuff'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TableSample'>: <function no_tablesample_sql>, <class 'sqlglot.expressions.TimeFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimestampDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimestampSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimeStrToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Trim'>: <function trim_sql>, <class 'sqlglot.expressions.TryCast'>: <function no_trycast_sql>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function date_add_sql.<locals>.func>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDate'>: <function _ts_or_ds_to_date_sql>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.Week'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.WeekOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Year'>: <function _remove_ts_or_ds_to_date.<locals>.func>}
UNSIGNED_TYPE_MAPPING = {<Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL'}
TIMESTAMP_TYPE_MAPPING = {<Type.DATETIME2: 'DATETIME2'>: 'DATETIME', <Type.SMALLDATETIME: 'SMALLDATETIME'>: 'DATETIME', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
TYPE_MAPPING = {<Type.DATETIME2: 'DATETIME2'>: 'DATETIME', <Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'VARBINARY', <Type.SMALLDATETIME: 'SMALLDATETIME'>: 'DATETIME', <Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
PROPERTIES_LOCATION = {<class 'sqlglot.expressions.AllowedValuesProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BackupProperty'>: <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.DistributedByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DuplicateKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DataDeletionProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <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.DynamicProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EmptyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EncodeProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <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.GlobalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IcebergProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.IncludeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.PartitionedOfProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PrimaryKey'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Property'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ReturnsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatDelimitedProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatSerdeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SampleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SecureProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SecurityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SetConfigProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SharingProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SequenceProperties'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StreamingTableProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Tags'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.TransformModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.UnloggedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.WithProcedureOptions'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
LIMIT_FETCH = 'LIMIT'
LIMIT_ONLY_LITERALS = True
CHAR_CAST_MAPPING = {<Type.LONGTEXT: 'LONGTEXT'>: 'CHAR', <Type.LONGBLOB: 'LONGBLOB'>: 'CHAR', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'CHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'CHAR', <Type.TEXT: 'TEXT'>: 'CHAR', <Type.TINYBLOB: 'TINYBLOB'>: 'CHAR', <Type.TINYTEXT: 'TINYTEXT'>: 'CHAR', <Type.VARCHAR: 'VARCHAR'>: 'CHAR'}
SIGNED_CAST_MAPPING = {<Type.BIGINT: 'BIGINT'>: 'SIGNED', <Type.BOOLEAN: 'BOOLEAN'>: 'SIGNED', <Type.INT: 'INT'>: 'SIGNED', <Type.SMALLINT: 'SMALLINT'>: 'SIGNED', <Type.TINYINT: 'TINYINT'>: 'SIGNED', <Type.MEDIUMINT: 'MEDIUMINT'>: 'SIGNED'}
CAST_MAPPING = {<Type.LONGTEXT: 'LONGTEXT'>: 'CHAR', <Type.LONGBLOB: 'LONGBLOB'>: 'CHAR', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'CHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'CHAR', <Type.TEXT: 'TEXT'>: 'CHAR', <Type.TINYBLOB: 'TINYBLOB'>: 'CHAR', <Type.TINYTEXT: 'TINYTEXT'>: 'CHAR', <Type.VARCHAR: 'VARCHAR'>: 'CHAR', <Type.BIGINT: 'BIGINT'>: 'SIGNED', <Type.BOOLEAN: 'BOOLEAN'>: 'SIGNED', <Type.INT: 'INT'>: 'SIGNED', <Type.SMALLINT: 'SMALLINT'>: 'SIGNED', <Type.TINYINT: 'TINYINT'>: 'SIGNED', <Type.MEDIUMINT: 'MEDIUMINT'>: 'SIGNED', <Type.UBIGINT: 'UBIGINT'>: 'UNSIGNED'}
TIMESTAMP_FUNC_TYPES = {<Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>}
RESERVED_KEYWORDS = {'io_after_gtids', 'row_number', 'where', 'elseif', 'ignore', 'character', 'fulltext', 'usage', 'integer', 'current_time', 'current_timestamp', 'rlike', 'char', 'varying', 'day_second', 'inout', 'join', 'case', 'as', 'separator', 'recursive', 'get', 'check', 'second_microsecond', 'long', 'null', 'right', 'row', 'index', 'read_write', 'modifies', 'fetch', 'leading', 'longtext', 'sql_calc_found_rows', 'range', 'float4', 'by', 'describe', 'schema', 'day_microsecond', 'mediumint', 'procedure', 'binary', 'year_month', 'ssl', 'hour_microsecond', 'false', 'out', 'double', 'call', 'interval', 'lead', 'from', 'hour_second', 'like', 'release', 'groups', 'resignal', 'sql', 'insensitive', 'schemas', 'tinyblob', 'system', 'outfile', 'order', 'force', 'signal', 'longblob', 'return', 'unsigned', 'day_hour', 'require', 'starting', 'minute_microsecond', 'repeat', 'trigger', 'lateral', 'cursor', 'day_minute', 'hour_minute', 'empty', 'unique', 'replace', 'escaped', 'use', 'change', 'convert', 'high_priority', 'natural', 'declare', 'sql_small_result', 'alter', 'reads', 'each', 'int8', 'except', 'or', 'function', 'sqlexception', 'no_write_to_binlog', 'while', 'specific', 'grouping', 'spatial', 'update', 'int3', 'virtual', 'limit', 'varbinary', 'desc', 'infile', 'float8', 'sql_big_result', 'table', 'create', 'current_date', 'outer', 'master_bind', 'real', 'explain', 'localtimestamp', 'utc_timestamp', 'is', 'write', 'values', 'optimize', 'minute_second', 'int4', 'int1', 'databases', 'condition', 'foreign', 'key', 'all', 'dual', 'enclosed', 'delete', 'leave', 'left', 'in', 'on', 'of', 'regexp', 'select', 'undo', 'set', 'xor', 'lag', 'over', 'accessible', 'union', 'distinct', 'between', 'master_ssl_verify_server_cert', 'show', 'match', 'ntile', 'unlock', 'linear', 'json_table', 'cascade', 'blob', 'both', 'dense_rank', 'delayed', 'generated', 'loop', 'for', 'with', 'io_before_gtids', 'sensitive', 'continue', 'column', 'not', 'keys', 'last_value', 'inner', 'low_priority', 'varcharacter', 'window', 'stored', 'optimizer_costs', 'default', 'cross', 'distinctrow', 'restrict', 'then', 'if', 'deterministic', 'percent_rank', 'utc_time', 'analyze', 'nth_value', 'asensitive', 'option', 'numeric', 'constraint', 'references', 'terminated', 'rows', 'tinyint', 'trailing', 'primary', 'kill', 'decimal', 'rename', 'collate', 'drop', 'insert', 'current_user', 'float', 'cube', 'intersect', 'tinytext', 'iterate', 'group', 'having', 'straight_join', 'read', 'zerofill', 'and', 'smallint', 'else', 'int2', 'mediumblob', 'database', 'exists', 'dec', 'grant', 'utc_date', 'cume_dist', 'partition', 'bigint', 'precision', 'before', 'varchar', 'sqlstate', 'sqlwarning', 'rank', 'purge', 'div', 'to', 'maxvalue', 'lines', 'load', 'revoke', 'middleint', 'int', 'true', 'first_value', 'mediumtext', 'asc', 'when', 'add', 'exit', 'optionally', 'lock', 'into', 'localtime', 'using', 'mod'}
def array_sql(self, expression: sqlglot.expressions.Array) -> str:
1127        def array_sql(self, expression: exp.Array) -> str:
1128            self.unsupported("Arrays are not supported by MySQL")
1129            return self.function_fallback_sql(expression)
def arraycontainsall_sql(self, expression: sqlglot.expressions.ArrayContainsAll) -> str:
1131        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
1132            self.unsupported("Array operations are not supported by MySQL")
1133            return self.function_fallback_sql(expression)
def dpipe_sql(self, expression: sqlglot.expressions.DPipe) -> str:
1135        def dpipe_sql(self, expression: exp.DPipe) -> str:
1136            return self.func("CONCAT", *expression.flatten())
def extract_sql(self, expression: sqlglot.expressions.Extract) -> str:
1138        def extract_sql(self, expression: exp.Extract) -> str:
1139            unit = expression.name
1140            if unit and unit.lower() == "epoch":
1141                return self.func("UNIX_TIMESTAMP", expression.expression)
1142
1143            return super().extract_sql(expression)
def datatype_sql(self, expression: sqlglot.expressions.DataType) -> str:
1145        def datatype_sql(self, expression: exp.DataType) -> str:
1146            if (
1147                self.VARCHAR_REQUIRES_SIZE
1148                and expression.is_type(exp.DataType.Type.VARCHAR)
1149                and not expression.expressions
1150            ):
1151                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
1152                return "TEXT"
1153
1154            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
1155            result = super().datatype_sql(expression)
1156            if expression.this in self.UNSIGNED_TYPE_MAPPING:
1157                result = f"{result} UNSIGNED"
1158
1159            return result
def jsonarraycontains_sql(self, expression: sqlglot.expressions.JSONArrayContains) -> str:
1161        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
1162            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
def cast_sql( self, expression: sqlglot.expressions.Cast, safe_prefix: Optional[str] = None) -> str:
1164        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
1165            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
1166                return self.func("TIMESTAMP", expression.this)
1167
1168            to = self.CAST_MAPPING.get(expression.to.this)
1169
1170            if to:
1171                expression.to.set("this", to)
1172            return super().cast_sql(expression)
def show_sql(self, expression: sqlglot.expressions.Show) -> str:
1174        def show_sql(self, expression: exp.Show) -> str:
1175            this = f" {expression.name}"
1176            full = " FULL" if expression.args.get("full") else ""
1177            global_ = " GLOBAL" if expression.args.get("global") else ""
1178
1179            target = self.sql(expression, "target")
1180            target = f" {target}" if target else ""
1181            if expression.name in ("COLUMNS", "INDEX"):
1182                target = f" FROM{target}"
1183            elif expression.name == "GRANTS":
1184                target = f" FOR{target}"
1185
1186            db = self._prefixed_sql("FROM", expression, "db")
1187
1188            like = self._prefixed_sql("LIKE", expression, "like")
1189            where = self.sql(expression, "where")
1190
1191            types = self.expressions(expression, key="types")
1192            types = f" {types}" if types else types
1193            query = self._prefixed_sql("FOR QUERY", expression, "query")
1194
1195            if expression.name == "PROFILE":
1196                offset = self._prefixed_sql("OFFSET", expression, "offset")
1197                limit = self._prefixed_sql("LIMIT", expression, "limit")
1198            else:
1199                offset = ""
1200                limit = self._oldstyle_limit_sql(expression)
1201
1202            log = self._prefixed_sql("IN", expression, "log")
1203            position = self._prefixed_sql("FROM", expression, "position")
1204
1205            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
1206
1207            if expression.name == "ENGINE":
1208                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
1209            else:
1210                mutex_or_status = ""
1211
1212            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
def altercolumn_sql(self, expression: sqlglot.expressions.AlterColumn) -> str:
1214        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
1215            dtype = self.sql(expression, "dtype")
1216            if not dtype:
1217                return super().altercolumn_sql(expression)
1218
1219            this = self.sql(expression, "this")
1220            return f"MODIFY COLUMN {this} {dtype}"
def chr_sql(self, expression: sqlglot.expressions.Chr) -> str:
1234        def chr_sql(self, expression: exp.Chr) -> str:
1235            this = self.expressions(sqls=[expression.this] + expression.expressions)
1236            charset = expression.args.get("charset")
1237            using = f" USING {self.sql(charset)}" if charset else ""
1238            return f"CHAR({this}{using})"
def timestamptrunc_sql(self, expression: sqlglot.expressions.TimestampTrunc) -> str:
1240        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
1241            unit = expression.args.get("unit")
1242
1243            # Pick an old-enough date to avoid negative timestamp diffs
1244            start_ts = "'0000-01-01 00:00:00'"
1245
1246            # Source: https://stackoverflow.com/a/32955740
1247            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
1248            interval = exp.Interval(this=timestamp_diff, unit=unit)
1249            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
1250
1251            return self.sql(dateadd)
def converttimezone_sql(self, expression: sqlglot.expressions.ConvertTimezone) -> str:
1253        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
1254            from_tz = expression.args.get("source_tz")
1255            to_tz = expression.args.get("target_tz")
1256            dt = expression.args.get("timestamp")
1257
1258            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
def attimezone_sql(self, expression: sqlglot.expressions.AtTimeZone) -> str:
1260        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
1261            self.unsupported("AT TIME ZONE is not supported by MySQL")
1262            return self.sql(expression.this)
SELECT_KINDS: Tuple[str, ...] = ()
TRY_SUPPORTED = False
SUPPORTS_UESCAPE = False
AFTER_HAVING_MODIFIER_TRANSFORMS = {'windows': <function Generator.<lambda>>, 'qualify': <function Generator.<lambda>>}
Inherited Members
sqlglot.generator.Generator
Generator
IGNORE_NULLS_IN_FUNC
EXCEPT_INTERSECT_SUPPORT_ALL_CLAUSE
CREATE_FUNCTION_RETURN_AS
MATCHED_BY_SOURCE
SINGLE_STRING_INTERVAL
RENAME_TABLE_WITH_DB
GROUPINGS_SEP
INDEX_ON
QUERY_HINTS
IS_BOOL_ALLOWED
LIMIT_IS_TOP
RETURNING_END
EXTRACT_ALLOWS_QUOTES
TZ_TO_WITH_TIME_ZONE
ALTER_TABLE_INCLUDE_COLUMN_KEYWORD
UNNEST_WITH_ORDINALITY
AGGREGATE_FILTER_SUPPORTED
SEMI_ANTI_JOIN_WITH_SIDE
COMPUTED_COLUMN_WITH_TYPE
SUPPORTS_TABLE_COPY
TABLESAMPLE_REQUIRES_PARENS
TABLESAMPLE_SIZE_IS_ROWS
TABLESAMPLE_KEYWORDS
TABLESAMPLE_WITH_METHOD
TABLESAMPLE_SEED_KEYWORD
COLLATE_IS_FUNC
DATA_TYPE_SPECIFIERS_ALLOWED
ENSURE_BOOLS
CTE_RECURSIVE_KEYWORD_REQUIRED
SUPPORTS_SINGLE_ARG_CONCAT
SUPPORTS_TABLE_ALIAS_COLUMNS
UNPIVOT_ALIASES_ARE_IDENTIFIERS
INSERT_OVERWRITE
SUPPORTS_SELECT_INTO
SUPPORTS_UNLOGGED_TABLES
SUPPORTS_CREATE_TABLE_LIKE
LIKE_PROPERTY_INSIDE_SCHEMA
MULTI_ARG_DISTINCT
JSON_PATH_SINGLE_QUOTE_ESCAPE
SUPPORTED_JSON_PATH_PARTS
CAN_IMPLEMENT_ARRAY_ANY
SET_OP_MODIFIERS
COPY_PARAMS_ARE_WRAPPED
COPY_PARAMS_EQ_REQUIRED
COPY_HAS_INTO_KEYWORD
STAR_EXCEPT
HEX_FUNC
WITH_PROPERTIES_PREFIX
QUOTE_JSON_PATH
SUPPORTS_EXPLODING_PROJECTIONS
ARRAY_CONCAT_IS_VAR_LEN
SUPPORTS_CONVERT_TIMEZONE
SUPPORTS_UNIX_SECONDS
ARRAY_SIZE_NAME
ARRAY_SIZE_DIM_REQUIRED
TIME_PART_SINGULARS
TOKEN_MAPPING
STRUCT_DELIMITER
PARAMETER_TOKEN
NAMED_PLACEHOLDER_TOKEN
EXPRESSION_PRECEDES_PROPERTIES_CREATABLES
WITH_SEPARATED_COMMENTS
EXCLUDE_COMMENTS
UNWRAPPED_INTERVAL_VALUES
PARAMETERIZABLE_TEXT_TYPES
EXPRESSIONS_WITHOUT_NESTED_CTES
SENTINEL_LINE_BREAK
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