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# sqlglot.dialects.hive

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      1from __future__ import annotations
      2
      3import typing as t
      4
      5from sqlglot import exp, generator, parser, tokens, transforms
      6from sqlglot.dialects.dialect import (
      7    DATE_ADD_OR_SUB,
      8    Dialect,
      9    NormalizationStrategy,
     10    approx_count_distinct_sql,
     11    arg_max_or_min_no_count,
     12    datestrtodate_sql,
     13    build_formatted_time,
     14    if_sql,
     15    is_parse_json,
     16    left_to_substring_sql,
     17    locate_to_strposition,
     18    max_or_greatest,
     19    min_or_least,
     20    no_ilike_sql,
     21    no_recursive_cte_sql,
     22    no_safe_divide_sql,
     23    no_trycast_sql,
     24    regexp_extract_sql,
     25    regexp_replace_sql,
     26    rename_func,
     27    right_to_substring_sql,
     28    strposition_to_locate_sql,
     29    struct_extract_sql,
     30    time_format,
     31    timestrtotime_sql,
     32    unit_to_str,
     33    var_map_sql,
     34)
     35from sqlglot.transforms import (
     36    remove_unique_constraints,
     37    ctas_with_tmp_tables_to_create_tmp_view,
     38    preprocess,
     39    move_schema_columns_to_partitioned_by,
     40)
     41from sqlglot.helper import seq_get
     42from sqlglot.tokens import TokenType
     43
     44# (FuncType, Multiplier)
     45DATE_DELTA_INTERVAL = {
     46    "YEAR": ("ADD_MONTHS", 12),
     47    "MONTH": ("ADD_MONTHS", 1),
     48    "QUARTER": ("ADD_MONTHS", 3),
     49    "WEEK": ("DATE_ADD", 7),
     50    "DAY": ("DATE_ADD", 1),
     51}
     52
     53TIME_DIFF_FACTOR = {
     54    "MILLISECOND": " * 1000",
     55    "SECOND": "",
     56    "MINUTE": " / 60",
     57    "HOUR": " / 3600",
     58}
     59
     60DIFF_MONTH_SWITCH = ("YEAR", "QUARTER", "MONTH")
     61
     62
     63def _add_date_sql(self: Hive.Generator, expression: DATE_ADD_OR_SUB) -> str:
     64    if isinstance(expression, exp.TsOrDsAdd) and not expression.unit:
     65        return self.func("DATE_ADD", expression.this, expression.expression)
     66
     67    unit = expression.text("unit").upper()
     68    func, multiplier = DATE_DELTA_INTERVAL.get(unit, ("DATE_ADD", 1))
     69
     70    if isinstance(expression, exp.DateSub):
     71        multiplier *= -1
     72
     73    if expression.expression.is_number:
     74        modified_increment = exp.Literal.number(expression.expression.to_py() * multiplier)
     75    else:
     76        modified_increment = expression.expression
     77        if multiplier != 1:
     78            modified_increment = exp.Mul(  # type: ignore
     79                this=modified_increment, expression=exp.Literal.number(multiplier)
     80            )
     81
     82    return self.func(func, expression.this, modified_increment)
     83
     84
     85def _date_diff_sql(self: Hive.Generator, expression: exp.DateDiff | exp.TsOrDsDiff) -> str:
     86    unit = expression.text("unit").upper()
     87
     88    factor = TIME_DIFF_FACTOR.get(unit)
     89    if factor is not None:
     90        left = self.sql(expression, "this")
     91        right = self.sql(expression, "expression")
     92        sec_diff = f"UNIX_TIMESTAMP({left}) - UNIX_TIMESTAMP({right})"
     93        return f"({sec_diff}){factor}" if factor else sec_diff
     94
     95    months_between = unit in DIFF_MONTH_SWITCH
     96    sql_func = "MONTHS_BETWEEN" if months_between else "DATEDIFF"
     97    _, multiplier = DATE_DELTA_INTERVAL.get(unit, ("", 1))
     98    multiplier_sql = f" / {multiplier}" if multiplier > 1 else ""
     99    diff_sql = f"{sql_func}({self.format_args(expression.this, expression.expression)})"
    100
    101    if months_between or multiplier_sql:
    102        # MONTHS_BETWEEN returns a float, so we need to truncate the fractional part.
    103        # For the same reason, we want to truncate if there's a divisor present.
    104        diff_sql = f"CAST({diff_sql}{multiplier_sql} AS INT)"
    105
    106    return diff_sql
    107
    108
    109def _json_format_sql(self: Hive.Generator, expression: exp.JSONFormat) -> str:
    110    this = expression.this
    111
    112    if is_parse_json(this):
    113        if this.this.is_string:
    114            # Since FROM_JSON requires a nested type, we always wrap the json string with
    115            # an array to ensure that "naked" strings like "'a'" will be handled correctly
    116            wrapped_json = exp.Literal.string(f"[{this.this.name}]")
    117
    118            from_json = self.func(
    119                "FROM_JSON", wrapped_json, self.func("SCHEMA_OF_JSON", wrapped_json)
    120            )
    121            to_json = self.func("TO_JSON", from_json)
    122
    123            # This strips the [, ] delimiters of the dummy array printed by TO_JSON
    124            return self.func("REGEXP_EXTRACT", to_json, "'^.(.*).$'", "1")
    125        return self.sql(this)
    126
    127    return self.func("TO_JSON", this, expression.args.get("options"))
    128
    129
    130def _array_sort_sql(self: Hive.Generator, expression: exp.ArraySort) -> str:
    131    if expression.expression:
    132        self.unsupported("Hive SORT_ARRAY does not support a comparator")
    133    return self.func("SORT_ARRAY", expression.this)
    134
    135
    136def _property_sql(self: Hive.Generator, expression: exp.Property) -> str:
    137    return f"{self.property_name(expression, string_key=True)}={self.sql(expression, 'value')}"
    138
    139
    140def _str_to_unix_sql(self: Hive.Generator, expression: exp.StrToUnix) -> str:
    141    return self.func("UNIX_TIMESTAMP", expression.this, time_format("hive")(self, expression))
    142
    143
    144def _unix_to_time_sql(self: Hive.Generator, expression: exp.UnixToTime) -> str:
    145    timestamp = self.sql(expression, "this")
    146    scale = expression.args.get("scale")
    147    if scale in (None, exp.UnixToTime.SECONDS):
    148        return rename_func("FROM_UNIXTIME")(self, expression)
    149
    150    return f"FROM_UNIXTIME({timestamp} / POW(10, {scale}))"
    151
    152
    153def _str_to_date_sql(self: Hive.Generator, expression: exp.StrToDate) -> str:
    154    this = self.sql(expression, "this")
    155    time_format = self.format_time(expression)
    156    if time_format not in (Hive.TIME_FORMAT, Hive.DATE_FORMAT):
    157        this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))"
    158    return f"CAST({this} AS DATE)"
    159
    160
    161def _str_to_time_sql(self: Hive.Generator, expression: exp.StrToTime) -> str:
    162    this = self.sql(expression, "this")
    163    time_format = self.format_time(expression)
    164    if time_format not in (Hive.TIME_FORMAT, Hive.DATE_FORMAT):
    165        this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))"
    166    return f"CAST({this} AS TIMESTAMP)"
    167
    168
    169def _to_date_sql(self: Hive.Generator, expression: exp.TsOrDsToDate) -> str:
    170    time_format = self.format_time(expression)
    171    if time_format and time_format not in (Hive.TIME_FORMAT, Hive.DATE_FORMAT):
    172        return self.func("TO_DATE", expression.this, time_format)
    173
    174    if isinstance(expression.this, exp.TsOrDsToDate):
    175        return self.sql(expression, "this")
    176
    177    return self.func("TO_DATE", expression.this)
    178
    179
    180def _build_with_ignore_nulls(
    181    exp_class: t.Type[exp.Expression],
    182) -> t.Callable[[t.List[exp.Expression]], exp.Expression]:
    183    def _parse(args: t.List[exp.Expression]) -> exp.Expression:
    184        this = exp_class(this=seq_get(args, 0))
    185        if seq_get(args, 1) == exp.true():
    186            return exp.IgnoreNulls(this=this)
    187        return this
    188
    189    return _parse
    190
    191
    192class Hive(Dialect):
    193    ALIAS_POST_TABLESAMPLE = True
    194    IDENTIFIERS_CAN_START_WITH_DIGIT = True
    195    SUPPORTS_USER_DEFINED_TYPES = False
    196    SAFE_DIVISION = True
    197
    198    # https://spark.apache.org/docs/latest/sql-ref-identifier.html#description
    199    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
    200
    201    TIME_MAPPING = {
    202        "y": "%Y",
    203        "Y": "%Y",
    204        "YYYY": "%Y",
    205        "yyyy": "%Y",
    206        "YY": "%y",
    207        "yy": "%y",
    208        "MMMM": "%B",
    209        "MMM": "%b",
    210        "MM": "%m",
    211        "M": "%-m",
    212        "dd": "%d",
    213        "d": "%-d",
    214        "HH": "%H",
    215        "H": "%-H",
    216        "hh": "%I",
    217        "h": "%-I",
    218        "mm": "%M",
    219        "m": "%-M",
    220        "ss": "%S",
    221        "s": "%-S",
    222        "SSSSSS": "%f",
    223        "a": "%p",
    224        "DD": "%j",
    225        "D": "%-j",
    226        "E": "%a",
    227        "EE": "%a",
    228        "EEE": "%a",
    229        "EEEE": "%A",
    230    }
    231
    232    DATE_FORMAT = "'yyyy-MM-dd'"
    233    DATEINT_FORMAT = "'yyyyMMdd'"
    234    TIME_FORMAT = "'yyyy-MM-dd HH:mm:ss'"
    235
    236    class Tokenizer(tokens.Tokenizer):
    237        QUOTES = ["'", '"']
    238        IDENTIFIERS = ["`"]
    239        STRING_ESCAPES = ["\\"]
    240
    241        SINGLE_TOKENS = {
    242            **tokens.Tokenizer.SINGLE_TOKENS,
    243            "$": TokenType.PARAMETER,
    244        }
    245
    246        KEYWORDS = {
    247            **tokens.Tokenizer.KEYWORDS,
    248            "ADD ARCHIVE": TokenType.COMMAND,
    249            "ADD ARCHIVES": TokenType.COMMAND,
    250            "ADD FILE": TokenType.COMMAND,
    251            "ADD FILES": TokenType.COMMAND,
    252            "ADD JAR": TokenType.COMMAND,
    253            "ADD JARS": TokenType.COMMAND,
    254            "MSCK REPAIR": TokenType.COMMAND,
    255            "REFRESH": TokenType.REFRESH,
    256            "TIMESTAMP AS OF": TokenType.TIMESTAMP_SNAPSHOT,
    257            "VERSION AS OF": TokenType.VERSION_SNAPSHOT,
    258            "SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    259        }
    260
    261        NUMERIC_LITERALS = {
    262            "L": "BIGINT",
    263            "S": "SMALLINT",
    264            "Y": "TINYINT",
    265            "D": "DOUBLE",
    266            "F": "FLOAT",
    267            "BD": "DECIMAL",
    268        }
    269
    270    class Parser(parser.Parser):
    271        LOG_DEFAULTS_TO_LN = True
    272        STRICT_CAST = False
    273        VALUES_FOLLOWED_BY_PAREN = False
    274
    275        FUNCTIONS = {
    276            **parser.Parser.FUNCTIONS,
    277            "BASE64": exp.ToBase64.from_arg_list,
    278            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    279            "COLLECT_SET": exp.ArrayUniqueAgg.from_arg_list,
    280            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    281                this=seq_get(args, 0), expression=seq_get(args, 1), unit=exp.Literal.string("DAY")
    282            ),
    283            "DATE_FORMAT": lambda args: build_formatted_time(exp.TimeToStr, "hive")(
    284                [
    285                    exp.TimeStrToTime(this=seq_get(args, 0)),
    286                    seq_get(args, 1),
    287                ]
    288            ),
    289            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    290                this=seq_get(args, 0),
    291                expression=exp.Mul(this=seq_get(args, 1), expression=exp.Literal.number(-1)),
    292                unit=exp.Literal.string("DAY"),
    293            ),
    294            "DATEDIFF": lambda args: exp.DateDiff(
    295                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    296                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    297            ),
    298            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    299            "FIRST": _build_with_ignore_nulls(exp.First),
    300            "FIRST_VALUE": _build_with_ignore_nulls(exp.FirstValue),
    301            "FROM_UNIXTIME": build_formatted_time(exp.UnixToStr, "hive", True),
    302            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    303            "LAST": _build_with_ignore_nulls(exp.Last),
    304            "LAST_VALUE": _build_with_ignore_nulls(exp.LastValue),
    305            "LOCATE": locate_to_strposition,
    306            "MAP": parser.build_var_map,
    307            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    308            "PERCENTILE": exp.Quantile.from_arg_list,
    309            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    310            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    311                this=seq_get(args, 0), expression=seq_get(args, 1), group=seq_get(args, 2)
    312            ),
    313            "SIZE": exp.ArraySize.from_arg_list,
    314            "SPLIT": exp.RegexpSplit.from_arg_list,
    315            "STR_TO_MAP": lambda args: exp.StrToMap(
    316                this=seq_get(args, 0),
    317                pair_delim=seq_get(args, 1) or exp.Literal.string(","),
    318                key_value_delim=seq_get(args, 2) or exp.Literal.string(":"),
    319            ),
    320            "TO_DATE": build_formatted_time(exp.TsOrDsToDate, "hive"),
    321            "TO_JSON": exp.JSONFormat.from_arg_list,
    322            "TRUNC": exp.TimestampTrunc.from_arg_list,
    323            "UNBASE64": exp.FromBase64.from_arg_list,
    324            "UNIX_TIMESTAMP": lambda args: build_formatted_time(exp.StrToUnix, "hive", True)(
    325                args or [exp.CurrentTimestamp()]
    326            ),
    327            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    328        }
    329
    330        NO_PAREN_FUNCTION_PARSERS = {
    331            **parser.Parser.NO_PAREN_FUNCTION_PARSERS,
    332            "TRANSFORM": lambda self: self._parse_transform(),
    333        }
    334
    335        PROPERTY_PARSERS = {
    336            **parser.Parser.PROPERTY_PARSERS,
    337            "SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    338                expressions=self._parse_wrapped_csv(self._parse_property)
    339            ),
    340        }
    341
    342        def _parse_transform(self) -> t.Optional[exp.Transform | exp.QueryTransform]:
    343            if not self._match(TokenType.L_PAREN, advance=False):
    344                self._retreat(self._index - 1)
    345                return None
    346
    347            args = self._parse_wrapped_csv(self._parse_lambda)
    348            row_format_before = self._parse_row_format(match_row=True)
    349
    350            record_writer = None
    351            if self._match_text_seq("RECORDWRITER"):
    352                record_writer = self._parse_string()
    353
    354            if not self._match(TokenType.USING):
    355                return exp.Transform.from_arg_list(args)
    356
    357            command_script = self._parse_string()
    358
    359            self._match(TokenType.ALIAS)
    360            schema = self._parse_schema()
    361
    362            row_format_after = self._parse_row_format(match_row=True)
    363            record_reader = None
    364            if self._match_text_seq("RECORDREADER"):
    365                record_reader = self._parse_string()
    366
    367            return self.expression(
    368                exp.QueryTransform,
    369                expressions=args,
    370                command_script=command_script,
    371                schema=schema,
    372                row_format_before=row_format_before,
    373                record_writer=record_writer,
    374                row_format_after=row_format_after,
    375                record_reader=record_reader,
    376            )
    377
    378        def _parse_types(
    379            self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True
    380        ) -> t.Optional[exp.Expression]:
    381            """
    382            Spark (and most likely Hive) treats casts to CHAR(length) and VARCHAR(length) as casts to
    383            STRING in all contexts except for schema definitions. For example, this is in Spark v3.4.0:
    384
    385                spark-sql (default)> select cast(1234 as varchar(2));
    386                23/06/06 15:51:18 WARN CharVarcharUtils: The Spark cast operator does not support
    387                char/varchar type and simply treats them as string type. Please use string type
    388                directly to avoid confusion. Otherwise, you can set spark.sql.legacy.charVarcharAsString
    389                to true, so that Spark treat them as string type as same as Spark 3.0 and earlier
    390
    391                1234
    392                Time taken: 4.265 seconds, Fetched 1 row(s)
    393
    394            This shows that Spark doesn't truncate the value into '12', which is inconsistent with
    395            what other dialects (e.g. postgres) do, so we need to drop the length to transpile correctly.
    396
    397            Reference: https://spark.apache.org/docs/latest/sql-ref-datatypes.html
    398            """
    399            this = super()._parse_types(
    400                check_func=check_func, schema=schema, allow_identifiers=allow_identifiers
    401            )
    402
    403            if this and not schema:
    404                return this.transform(
    405                    lambda node: (
    406                        node.replace(exp.DataType.build("text"))
    407                        if isinstance(node, exp.DataType) and node.is_type("char", "varchar")
    408                        else node
    409                    ),
    410                    copy=False,
    411                )
    412
    413            return this
    414
    415        def _parse_partition_and_order(
    416            self,
    417        ) -> t.Tuple[t.List[exp.Expression], t.Optional[exp.Expression]]:
    418            return (
    419                (
    420                    self._parse_csv(self._parse_assignment)
    421                    if self._match_set({TokenType.PARTITION_BY, TokenType.DISTRIBUTE_BY})
    422                    else []
    423                ),
    424                super()._parse_order(skip_order_token=self._match(TokenType.SORT_BY)),
    425            )
    426
    427        def _parse_parameter(self) -> exp.Parameter:
    428            self._match(TokenType.L_BRACE)
    429            this = self._parse_identifier() or self._parse_primary_or_var()
    430            expression = self._match(TokenType.COLON) and (
    431                self._parse_identifier() or self._parse_primary_or_var()
    432            )
    433            self._match(TokenType.R_BRACE)
    434            return self.expression(exp.Parameter, this=this, expression=expression)
    435
    436    class Generator(generator.Generator):
    437        LIMIT_FETCH = "LIMIT"
    438        TABLESAMPLE_WITH_METHOD = False
    439        JOIN_HINTS = False
    440        TABLE_HINTS = False
    441        QUERY_HINTS = False
    442        INDEX_ON = "ON TABLE"
    443        EXTRACT_ALLOWS_QUOTES = False
    444        NVL2_SUPPORTED = False
    445        LAST_DAY_SUPPORTS_DATE_PART = False
    446        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
    447        SUPPORTS_TO_NUMBER = False
    448        WITH_PROPERTIES_PREFIX = "TBLPROPERTIES"
    449        PARSE_JSON_NAME = None
    450        PAD_FILL_PATTERN_IS_REQUIRED = True
    451
    452        EXPRESSIONS_WITHOUT_NESTED_CTES = {
    453            exp.Insert,
    454            exp.Select,
    455            exp.Subquery,
    456            exp.SetOperation,
    457        }
    458
    459        SUPPORTED_JSON_PATH_PARTS = {
    460            exp.JSONPathKey,
    461            exp.JSONPathRoot,
    462            exp.JSONPathSubscript,
    463            exp.JSONPathWildcard,
    464        }
    465
    466        TYPE_MAPPING = {
    467            **generator.Generator.TYPE_MAPPING,
    468            exp.DataType.Type.BIT: "BOOLEAN",
    469            exp.DataType.Type.DATETIME: "TIMESTAMP",
    470            exp.DataType.Type.ROWVERSION: "BINARY",
    471            exp.DataType.Type.TEXT: "STRING",
    472            exp.DataType.Type.TIME: "TIMESTAMP",
    473            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    474            exp.DataType.Type.UTINYINT: "SMALLINT",
    475            exp.DataType.Type.VARBINARY: "BINARY",
    476        }
    477
    478        TRANSFORMS = {
    479            **generator.Generator.TRANSFORMS,
    480            exp.Group: transforms.preprocess([transforms.unalias_group]),
    481            exp.Select: transforms.preprocess(
    482                [
    483                    transforms.eliminate_qualify,
    484                    transforms.eliminate_distinct_on,
    485                    transforms.unnest_to_explode,
    486                ]
    487            ),
    488            exp.Property: _property_sql,
    489            exp.AnyValue: rename_func("FIRST"),
    490            exp.ApproxDistinct: approx_count_distinct_sql,
    491            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
    492            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
    493            exp.ArrayConcat: rename_func("CONCAT"),
    494            exp.ArrayToString: lambda self, e: self.func("CONCAT_WS", e.expression, e.this),
    495            exp.ArraySize: rename_func("SIZE"),
    496            exp.ArraySort: _array_sort_sql,
    497            exp.With: no_recursive_cte_sql,
    498            exp.DateAdd: _add_date_sql,
    499            exp.DateDiff: _date_diff_sql,
    500            exp.DateStrToDate: datestrtodate_sql,
    501            exp.DateSub: _add_date_sql,
    502            exp.DateToDi: lambda self,
    503            e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.DATEINT_FORMAT}) AS INT)",
    504            exp.DiToDate: lambda self,
    505            e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.DATEINT_FORMAT})",
    506            exp.FileFormatProperty: lambda self,
    507            e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    508            exp.FromBase64: rename_func("UNBASE64"),
    509            exp.If: if_sql(),
    510            exp.ILike: no_ilike_sql,
    511            exp.IsNan: rename_func("ISNAN"),
    512            exp.JSONExtract: lambda self, e: self.func("GET_JSON_OBJECT", e.this, e.expression),
    513            exp.JSONExtractScalar: lambda self, e: self.func(
    514                "GET_JSON_OBJECT", e.this, e.expression
    515            ),
    516            exp.JSONFormat: _json_format_sql,
    517            exp.Left: left_to_substring_sql,
    518            exp.Map: var_map_sql,
    519            exp.Max: max_or_greatest,
    520            exp.MD5Digest: lambda self, e: self.func("UNHEX", self.func("MD5", e.this)),
    521            exp.Min: min_or_least,
    522            exp.MonthsBetween: lambda self, e: self.func("MONTHS_BETWEEN", e.this, e.expression),
    523            exp.NotNullColumnConstraint: lambda _, e: (
    524                "" if e.args.get("allow_null") else "NOT NULL"
    525            ),
    526            exp.VarMap: var_map_sql,
    527            exp.Create: preprocess(
    528                [
    529                    remove_unique_constraints,
    530                    ctas_with_tmp_tables_to_create_tmp_view,
    531                    move_schema_columns_to_partitioned_by,
    532                ]
    533            ),
    534            exp.Quantile: rename_func("PERCENTILE"),
    535            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    536            exp.RegexpExtract: regexp_extract_sql,
    537            exp.RegexpReplace: regexp_replace_sql,
    538            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    539            exp.RegexpSplit: rename_func("SPLIT"),
    540            exp.Right: right_to_substring_sql,
    541            exp.SafeDivide: no_safe_divide_sql,
    542            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    543            exp.ArrayUniqueAgg: rename_func("COLLECT_SET"),
    544            exp.Split: lambda self, e: self.func(
    545                "SPLIT", e.this, self.func("CONCAT", "'\\\\Q'", e.expression)
    546            ),
    547            exp.StrPosition: strposition_to_locate_sql,
    548            exp.StrToDate: _str_to_date_sql,
    549            exp.StrToTime: _str_to_time_sql,
    550            exp.StrToUnix: _str_to_unix_sql,
    551            exp.StructExtract: struct_extract_sql,
    552            exp.TimeStrToDate: rename_func("TO_DATE"),
    553            exp.TimeStrToTime: timestrtotime_sql,
    554            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    555            exp.TimestampTrunc: lambda self, e: self.func("TRUNC", e.this, unit_to_str(e)),
    556            exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)),
    557            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    558            exp.ToBase64: rename_func("BASE64"),
    559            exp.TsOrDiToDi: lambda self,
    560            e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    561            exp.TsOrDsAdd: _add_date_sql,
    562            exp.TsOrDsDiff: _date_diff_sql,
    563            exp.TsOrDsToDate: _to_date_sql,
    564            exp.TryCast: no_trycast_sql,
    565            exp.UnixToStr: lambda self, e: self.func(
    566                "FROM_UNIXTIME", e.this, time_format("hive")(self, e)
    567            ),
    568            exp.UnixToTime: _unix_to_time_sql,
    569            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    570            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    571            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    572            exp.National: lambda self, e: self.national_sql(e, prefix=""),
    573            exp.ClusteredColumnConstraint: lambda self,
    574            e: f"({self.expressions(e, 'this', indent=False)})",
    575            exp.NonClusteredColumnConstraint: lambda self,
    576            e: f"({self.expressions(e, 'this', indent=False)})",
    577            exp.NotForReplicationColumnConstraint: lambda *_: "",
    578            exp.OnProperty: lambda *_: "",
    579            exp.PrimaryKeyColumnConstraint: lambda *_: "PRIMARY KEY",
    580            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    581            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    582            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    583        }
    584
    585        PROPERTIES_LOCATION = {
    586            **generator.Generator.PROPERTIES_LOCATION,
    587            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    588            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    589            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    590            exp.WithDataProperty: exp.Properties.Location.UNSUPPORTED,
    591        }
    592
    593        def _jsonpathkey_sql(self, expression: exp.JSONPathKey) -> str:
    594            if isinstance(expression.this, exp.JSONPathWildcard):
    595                self.unsupported("Unsupported wildcard in JSONPathKey expression")
    596                return ""
    597
    598            return super()._jsonpathkey_sql(expression)
    599
    600        def parameter_sql(self, expression: exp.Parameter) -> str:
    601            this = self.sql(expression, "this")
    602            expression_sql = self.sql(expression, "expression")
    603
    604            parent = expression.parent
    605            this = f"{this}:{expression_sql}" if expression_sql else this
    606
    607            if isinstance(parent, exp.EQ) and isinstance(parent.parent, exp.SetItem):
    608                # We need to produce SET key = value instead of SET ${key} = value
    609                return this
    610
    611            return f"${{{this}}}"
    612
    613        def schema_sql(self, expression: exp.Schema) -> str:
    614            for ordered in expression.find_all(exp.Ordered):
    615                if ordered.args.get("desc") is False:
    616                    ordered.set("desc", None)
    617
    618            return super().schema_sql(expression)
    619
    620        def constraint_sql(self, expression: exp.Constraint) -> str:
    621            for prop in list(expression.find_all(exp.Properties)):
    622                prop.pop()
    623
    624            this = self.sql(expression, "this")
    625            expressions = self.expressions(expression, sep=" ", flat=True)
    626            return f"CONSTRAINT {this} {expressions}"
    627
    628        def rowformatserdeproperty_sql(self, expression: exp.RowFormatSerdeProperty) -> str:
    629            serde_props = self.sql(expression, "serde_properties")
    630            serde_props = f" {serde_props}" if serde_props else ""
    631            return f"ROW FORMAT SERDE {self.sql(expression, 'this')}{serde_props}"
    632
    633        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    634            return self.func(
    635                "COLLECT_LIST",
    636                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    637            )
    638
    639        def datatype_sql(self, expression: exp.DataType) -> str:
    640            if expression.this in self.PARAMETERIZABLE_TEXT_TYPES and (
    641                not expression.expressions or expression.expressions[0].name == "MAX"
    642            ):
    643                expression = exp.DataType.build("text")
    644            elif expression.is_type(exp.DataType.Type.TEXT) and expression.expressions:
    645                expression.set("this", exp.DataType.Type.VARCHAR)
    646            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    647                expression = exp.DataType.build(expression.this)
    648            elif expression.is_type("float"):
    649                size_expression = expression.find(exp.DataTypeParam)
    650                if size_expression:
    651                    size = int(size_expression.name)
    652                    expression = (
    653                        exp.DataType.build("float") if size <= 32 else exp.DataType.build("double")
    654                    )
    655
    656            return super().datatype_sql(expression)
    657
    658        def version_sql(self, expression: exp.Version) -> str:
    659            sql = super().version_sql(expression)
    660            return sql.replace("FOR ", "", 1)
    661
    662        def struct_sql(self, expression: exp.Struct) -> str:
    663            values = []
    664
    665            for i, e in enumerate(expression.expressions):
    666                if isinstance(e, exp.PropertyEQ):
    667                    self.unsupported("Hive does not support named structs.")
    668                    values.append(e.expression)
    669                else:
    670                    values.append(e)
    671
    672            return self.func("STRUCT", *values)
    673
    674        def alterset_sql(self, expression: exp.AlterSet) -> str:
    675            exprs = self.expressions(expression, flat=True)
    676            exprs = f" {exprs}" if exprs else ""
    677            location = self.sql(expression, "location")
    678            location = f" LOCATION {location}" if location else ""
    679            file_format = self.expressions(expression, key="file_format", flat=True, sep=" ")
    680            file_format = f" FILEFORMAT {file_format}" if file_format else ""
    681            serde = self.sql(expression, "serde")
    682            serde = f" SERDE {serde}" if serde else ""
    683            tags = self.expressions(expression, key="tag", flat=True, sep="")
    684            tags = f" TAGS {tags}" if tags else ""
    685
    686            return f"SET{serde}{exprs}{location}{file_format}{tags}"
    687
    688        def serdeproperties_sql(self, expression: exp.SerdeProperties) -> str:
    689            prefix = "WITH " if expression.args.get("with") else ""
    690            exprs = self.expressions(expression, flat=True)
    691
    692            return f"{prefix}SERDEPROPERTIES ({exprs})"

DATE_DELTA_INTERVAL = {'YEAR': ('ADD_MONTHS', 12), 'MONTH': ('ADD_MONTHS', 1), 'QUARTER': ('ADD_MONTHS', 3), 'WEEK': ('DATE_ADD', 7), 'DAY': ('DATE_ADD', 1)}
TIME_DIFF_FACTOR = {'MILLISECOND': ' * 1000', 'SECOND': '', 'MINUTE': ' / 60', 'HOUR': ' / 3600'}
DIFF_MONTH_SWITCH = ('YEAR', 'QUARTER', 'MONTH')
class Hive(sqlglot.dialects.dialect.Dialect): View Source

    193class Hive(Dialect):
    194    ALIAS_POST_TABLESAMPLE = True
    195    IDENTIFIERS_CAN_START_WITH_DIGIT = True
    196    SUPPORTS_USER_DEFINED_TYPES = False
    197    SAFE_DIVISION = True
    198
    199    # https://spark.apache.org/docs/latest/sql-ref-identifier.html#description
    200    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
    201
    202    TIME_MAPPING = {
    203        "y": "%Y",
    204        "Y": "%Y",
    205        "YYYY": "%Y",
    206        "yyyy": "%Y",
    207        "YY": "%y",
    208        "yy": "%y",
    209        "MMMM": "%B",
    210        "MMM": "%b",
    211        "MM": "%m",
    212        "M": "%-m",
    213        "dd": "%d",
    214        "d": "%-d",
    215        "HH": "%H",
    216        "H": "%-H",
    217        "hh": "%I",
    218        "h": "%-I",
    219        "mm": "%M",
    220        "m": "%-M",
    221        "ss": "%S",
    222        "s": "%-S",
    223        "SSSSSS": "%f",
    224        "a": "%p",
    225        "DD": "%j",
    226        "D": "%-j",
    227        "E": "%a",
    228        "EE": "%a",
    229        "EEE": "%a",
    230        "EEEE": "%A",
    231    }
    232
    233    DATE_FORMAT = "'yyyy-MM-dd'"
    234    DATEINT_FORMAT = "'yyyyMMdd'"
    235    TIME_FORMAT = "'yyyy-MM-dd HH:mm:ss'"
    236
    237    class Tokenizer(tokens.Tokenizer):
    238        QUOTES = ["'", '"']
    239        IDENTIFIERS = ["`"]
    240        STRING_ESCAPES = ["\\"]
    241
    242        SINGLE_TOKENS = {
    243            **tokens.Tokenizer.SINGLE_TOKENS,
    244            "$": TokenType.PARAMETER,
    245        }
    246
    247        KEYWORDS = {
    248            **tokens.Tokenizer.KEYWORDS,
    249            "ADD ARCHIVE": TokenType.COMMAND,
    250            "ADD ARCHIVES": TokenType.COMMAND,
    251            "ADD FILE": TokenType.COMMAND,
    252            "ADD FILES": TokenType.COMMAND,
    253            "ADD JAR": TokenType.COMMAND,
    254            "ADD JARS": TokenType.COMMAND,
    255            "MSCK REPAIR": TokenType.COMMAND,
    256            "REFRESH": TokenType.REFRESH,
    257            "TIMESTAMP AS OF": TokenType.TIMESTAMP_SNAPSHOT,
    258            "VERSION AS OF": TokenType.VERSION_SNAPSHOT,
    259            "SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    260        }
    261
    262        NUMERIC_LITERALS = {
    263            "L": "BIGINT",
    264            "S": "SMALLINT",
    265            "Y": "TINYINT",
    266            "D": "DOUBLE",
    267            "F": "FLOAT",
    268            "BD": "DECIMAL",
    269        }
    270
    271    class Parser(parser.Parser):
    272        LOG_DEFAULTS_TO_LN = True
    273        STRICT_CAST = False
    274        VALUES_FOLLOWED_BY_PAREN = False
    275
    276        FUNCTIONS = {
    277            **parser.Parser.FUNCTIONS,
    278            "BASE64": exp.ToBase64.from_arg_list,
    279            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    280            "COLLECT_SET": exp.ArrayUniqueAgg.from_arg_list,
    281            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    282                this=seq_get(args, 0), expression=seq_get(args, 1), unit=exp.Literal.string("DAY")
    283            ),
    284            "DATE_FORMAT": lambda args: build_formatted_time(exp.TimeToStr, "hive")(
    285                [
    286                    exp.TimeStrToTime(this=seq_get(args, 0)),
    287                    seq_get(args, 1),
    288                ]
    289            ),
    290            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    291                this=seq_get(args, 0),
    292                expression=exp.Mul(this=seq_get(args, 1), expression=exp.Literal.number(-1)),
    293                unit=exp.Literal.string("DAY"),
    294            ),
    295            "DATEDIFF": lambda args: exp.DateDiff(
    296                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    297                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    298            ),
    299            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    300            "FIRST": _build_with_ignore_nulls(exp.First),
    301            "FIRST_VALUE": _build_with_ignore_nulls(exp.FirstValue),
    302            "FROM_UNIXTIME": build_formatted_time(exp.UnixToStr, "hive", True),
    303            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    304            "LAST": _build_with_ignore_nulls(exp.Last),
    305            "LAST_VALUE": _build_with_ignore_nulls(exp.LastValue),
    306            "LOCATE": locate_to_strposition,
    307            "MAP": parser.build_var_map,
    308            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    309            "PERCENTILE": exp.Quantile.from_arg_list,
    310            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    311            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    312                this=seq_get(args, 0), expression=seq_get(args, 1), group=seq_get(args, 2)
    313            ),
    314            "SIZE": exp.ArraySize.from_arg_list,
    315            "SPLIT": exp.RegexpSplit.from_arg_list,
    316            "STR_TO_MAP": lambda args: exp.StrToMap(
    317                this=seq_get(args, 0),
    318                pair_delim=seq_get(args, 1) or exp.Literal.string(","),
    319                key_value_delim=seq_get(args, 2) or exp.Literal.string(":"),
    320            ),
    321            "TO_DATE": build_formatted_time(exp.TsOrDsToDate, "hive"),
    322            "TO_JSON": exp.JSONFormat.from_arg_list,
    323            "TRUNC": exp.TimestampTrunc.from_arg_list,
    324            "UNBASE64": exp.FromBase64.from_arg_list,
    325            "UNIX_TIMESTAMP": lambda args: build_formatted_time(exp.StrToUnix, "hive", True)(
    326                args or [exp.CurrentTimestamp()]
    327            ),
    328            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    329        }
    330
    331        NO_PAREN_FUNCTION_PARSERS = {
    332            **parser.Parser.NO_PAREN_FUNCTION_PARSERS,
    333            "TRANSFORM": lambda self: self._parse_transform(),
    334        }
    335
    336        PROPERTY_PARSERS = {
    337            **parser.Parser.PROPERTY_PARSERS,
    338            "SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    339                expressions=self._parse_wrapped_csv(self._parse_property)
    340            ),
    341        }
    342
    343        def _parse_transform(self) -> t.Optional[exp.Transform | exp.QueryTransform]:
    344            if not self._match(TokenType.L_PAREN, advance=False):
    345                self._retreat(self._index - 1)
    346                return None
    347
    348            args = self._parse_wrapped_csv(self._parse_lambda)
    349            row_format_before = self._parse_row_format(match_row=True)
    350
    351            record_writer = None
    352            if self._match_text_seq("RECORDWRITER"):
    353                record_writer = self._parse_string()
    354
    355            if not self._match(TokenType.USING):
    356                return exp.Transform.from_arg_list(args)
    357
    358            command_script = self._parse_string()
    359
    360            self._match(TokenType.ALIAS)
    361            schema = self._parse_schema()
    362
    363            row_format_after = self._parse_row_format(match_row=True)
    364            record_reader = None
    365            if self._match_text_seq("RECORDREADER"):
    366                record_reader = self._parse_string()
    367
    368            return self.expression(
    369                exp.QueryTransform,
    370                expressions=args,
    371                command_script=command_script,
    372                schema=schema,
    373                row_format_before=row_format_before,
    374                record_writer=record_writer,
    375                row_format_after=row_format_after,
    376                record_reader=record_reader,
    377            )
    378
    379        def _parse_types(
    380            self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True
    381        ) -> t.Optional[exp.Expression]:
    382            """
    383            Spark (and most likely Hive) treats casts to CHAR(length) and VARCHAR(length) as casts to
    384            STRING in all contexts except for schema definitions. For example, this is in Spark v3.4.0:
    385
    386                spark-sql (default)> select cast(1234 as varchar(2));
    387                23/06/06 15:51:18 WARN CharVarcharUtils: The Spark cast operator does not support
    388                char/varchar type and simply treats them as string type. Please use string type
    389                directly to avoid confusion. Otherwise, you can set spark.sql.legacy.charVarcharAsString
    390                to true, so that Spark treat them as string type as same as Spark 3.0 and earlier
    391
    392                1234
    393                Time taken: 4.265 seconds, Fetched 1 row(s)
    394
    395            This shows that Spark doesn't truncate the value into '12', which is inconsistent with
    396            what other dialects (e.g. postgres) do, so we need to drop the length to transpile correctly.
    397
    398            Reference: https://spark.apache.org/docs/latest/sql-ref-datatypes.html
    399            """
    400            this = super()._parse_types(
    401                check_func=check_func, schema=schema, allow_identifiers=allow_identifiers
    402            )
    403
    404            if this and not schema:
    405                return this.transform(
    406                    lambda node: (
    407                        node.replace(exp.DataType.build("text"))
    408                        if isinstance(node, exp.DataType) and node.is_type("char", "varchar")
    409                        else node
    410                    ),
    411                    copy=False,
    412                )
    413
    414            return this
    415
    416        def _parse_partition_and_order(
    417            self,
    418        ) -> t.Tuple[t.List[exp.Expression], t.Optional[exp.Expression]]:
    419            return (
    420                (
    421                    self._parse_csv(self._parse_assignment)
    422                    if self._match_set({TokenType.PARTITION_BY, TokenType.DISTRIBUTE_BY})
    423                    else []
    424                ),
    425                super()._parse_order(skip_order_token=self._match(TokenType.SORT_BY)),
    426            )
    427
    428        def _parse_parameter(self) -> exp.Parameter:
    429            self._match(TokenType.L_BRACE)
    430            this = self._parse_identifier() or self._parse_primary_or_var()
    431            expression = self._match(TokenType.COLON) and (
    432                self._parse_identifier() or self._parse_primary_or_var()
    433            )
    434            self._match(TokenType.R_BRACE)
    435            return self.expression(exp.Parameter, this=this, expression=expression)
    436
    437    class Generator(generator.Generator):
    438        LIMIT_FETCH = "LIMIT"
    439        TABLESAMPLE_WITH_METHOD = False
    440        JOIN_HINTS = False
    441        TABLE_HINTS = False
    442        QUERY_HINTS = False
    443        INDEX_ON = "ON TABLE"
    444        EXTRACT_ALLOWS_QUOTES = False
    445        NVL2_SUPPORTED = False
    446        LAST_DAY_SUPPORTS_DATE_PART = False
    447        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
    448        SUPPORTS_TO_NUMBER = False
    449        WITH_PROPERTIES_PREFIX = "TBLPROPERTIES"
    450        PARSE_JSON_NAME = None
    451        PAD_FILL_PATTERN_IS_REQUIRED = True
    452
    453        EXPRESSIONS_WITHOUT_NESTED_CTES = {
    454            exp.Insert,
    455            exp.Select,
    456            exp.Subquery,
    457            exp.SetOperation,
    458        }
    459
    460        SUPPORTED_JSON_PATH_PARTS = {
    461            exp.JSONPathKey,
    462            exp.JSONPathRoot,
    463            exp.JSONPathSubscript,
    464            exp.JSONPathWildcard,
    465        }
    466
    467        TYPE_MAPPING = {
    468            **generator.Generator.TYPE_MAPPING,
    469            exp.DataType.Type.BIT: "BOOLEAN",
    470            exp.DataType.Type.DATETIME: "TIMESTAMP",
    471            exp.DataType.Type.ROWVERSION: "BINARY",
    472            exp.DataType.Type.TEXT: "STRING",
    473            exp.DataType.Type.TIME: "TIMESTAMP",
    474            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    475            exp.DataType.Type.UTINYINT: "SMALLINT",
    476            exp.DataType.Type.VARBINARY: "BINARY",
    477        }
    478
    479        TRANSFORMS = {
    480            **generator.Generator.TRANSFORMS,
    481            exp.Group: transforms.preprocess([transforms.unalias_group]),
    482            exp.Select: transforms.preprocess(
    483                [
    484                    transforms.eliminate_qualify,
    485                    transforms.eliminate_distinct_on,
    486                    transforms.unnest_to_explode,
    487                ]
    488            ),
    489            exp.Property: _property_sql,
    490            exp.AnyValue: rename_func("FIRST"),
    491            exp.ApproxDistinct: approx_count_distinct_sql,
    492            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
    493            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
    494            exp.ArrayConcat: rename_func("CONCAT"),
    495            exp.ArrayToString: lambda self, e: self.func("CONCAT_WS", e.expression, e.this),
    496            exp.ArraySize: rename_func("SIZE"),
    497            exp.ArraySort: _array_sort_sql,
    498            exp.With: no_recursive_cte_sql,
    499            exp.DateAdd: _add_date_sql,
    500            exp.DateDiff: _date_diff_sql,
    501            exp.DateStrToDate: datestrtodate_sql,
    502            exp.DateSub: _add_date_sql,
    503            exp.DateToDi: lambda self,
    504            e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.DATEINT_FORMAT}) AS INT)",
    505            exp.DiToDate: lambda self,
    506            e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.DATEINT_FORMAT})",
    507            exp.FileFormatProperty: lambda self,
    508            e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    509            exp.FromBase64: rename_func("UNBASE64"),
    510            exp.If: if_sql(),
    511            exp.ILike: no_ilike_sql,
    512            exp.IsNan: rename_func("ISNAN"),
    513            exp.JSONExtract: lambda self, e: self.func("GET_JSON_OBJECT", e.this, e.expression),
    514            exp.JSONExtractScalar: lambda self, e: self.func(
    515                "GET_JSON_OBJECT", e.this, e.expression
    516            ),
    517            exp.JSONFormat: _json_format_sql,
    518            exp.Left: left_to_substring_sql,
    519            exp.Map: var_map_sql,
    520            exp.Max: max_or_greatest,
    521            exp.MD5Digest: lambda self, e: self.func("UNHEX", self.func("MD5", e.this)),
    522            exp.Min: min_or_least,
    523            exp.MonthsBetween: lambda self, e: self.func("MONTHS_BETWEEN", e.this, e.expression),
    524            exp.NotNullColumnConstraint: lambda _, e: (
    525                "" if e.args.get("allow_null") else "NOT NULL"
    526            ),
    527            exp.VarMap: var_map_sql,
    528            exp.Create: preprocess(
    529                [
    530                    remove_unique_constraints,
    531                    ctas_with_tmp_tables_to_create_tmp_view,
    532                    move_schema_columns_to_partitioned_by,
    533                ]
    534            ),
    535            exp.Quantile: rename_func("PERCENTILE"),
    536            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    537            exp.RegexpExtract: regexp_extract_sql,
    538            exp.RegexpReplace: regexp_replace_sql,
    539            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    540            exp.RegexpSplit: rename_func("SPLIT"),
    541            exp.Right: right_to_substring_sql,
    542            exp.SafeDivide: no_safe_divide_sql,
    543            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    544            exp.ArrayUniqueAgg: rename_func("COLLECT_SET"),
    545            exp.Split: lambda self, e: self.func(
    546                "SPLIT", e.this, self.func("CONCAT", "'\\\\Q'", e.expression)
    547            ),
    548            exp.StrPosition: strposition_to_locate_sql,
    549            exp.StrToDate: _str_to_date_sql,
    550            exp.StrToTime: _str_to_time_sql,
    551            exp.StrToUnix: _str_to_unix_sql,
    552            exp.StructExtract: struct_extract_sql,
    553            exp.TimeStrToDate: rename_func("TO_DATE"),
    554            exp.TimeStrToTime: timestrtotime_sql,
    555            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    556            exp.TimestampTrunc: lambda self, e: self.func("TRUNC", e.this, unit_to_str(e)),
    557            exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)),
    558            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    559            exp.ToBase64: rename_func("BASE64"),
    560            exp.TsOrDiToDi: lambda self,
    561            e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    562            exp.TsOrDsAdd: _add_date_sql,
    563            exp.TsOrDsDiff: _date_diff_sql,
    564            exp.TsOrDsToDate: _to_date_sql,
    565            exp.TryCast: no_trycast_sql,
    566            exp.UnixToStr: lambda self, e: self.func(
    567                "FROM_UNIXTIME", e.this, time_format("hive")(self, e)
    568            ),
    569            exp.UnixToTime: _unix_to_time_sql,
    570            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    571            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    572            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    573            exp.National: lambda self, e: self.national_sql(e, prefix=""),
    574            exp.ClusteredColumnConstraint: lambda self,
    575            e: f"({self.expressions(e, 'this', indent=False)})",
    576            exp.NonClusteredColumnConstraint: lambda self,
    577            e: f"({self.expressions(e, 'this', indent=False)})",
    578            exp.NotForReplicationColumnConstraint: lambda *_: "",
    579            exp.OnProperty: lambda *_: "",
    580            exp.PrimaryKeyColumnConstraint: lambda *_: "PRIMARY KEY",
    581            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    582            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    583            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    584        }
    585
    586        PROPERTIES_LOCATION = {
    587            **generator.Generator.PROPERTIES_LOCATION,
    588            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    589            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    590            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    591            exp.WithDataProperty: exp.Properties.Location.UNSUPPORTED,
    592        }
    593
    594        def _jsonpathkey_sql(self, expression: exp.JSONPathKey) -> str:
    595            if isinstance(expression.this, exp.JSONPathWildcard):
    596                self.unsupported("Unsupported wildcard in JSONPathKey expression")
    597                return ""
    598
    599            return super()._jsonpathkey_sql(expression)
    600
    601        def parameter_sql(self, expression: exp.Parameter) -> str:
    602            this = self.sql(expression, "this")
    603            expression_sql = self.sql(expression, "expression")
    604
    605            parent = expression.parent
    606            this = f"{this}:{expression_sql}" if expression_sql else this
    607
    608            if isinstance(parent, exp.EQ) and isinstance(parent.parent, exp.SetItem):
    609                # We need to produce SET key = value instead of SET ${key} = value
    610                return this
    611
    612            return f"${{{this}}}"
    613
    614        def schema_sql(self, expression: exp.Schema) -> str:
    615            for ordered in expression.find_all(exp.Ordered):
    616                if ordered.args.get("desc") is False:
    617                    ordered.set("desc", None)
    618
    619            return super().schema_sql(expression)
    620
    621        def constraint_sql(self, expression: exp.Constraint) -> str:
    622            for prop in list(expression.find_all(exp.Properties)):
    623                prop.pop()
    624
    625            this = self.sql(expression, "this")
    626            expressions = self.expressions(expression, sep=" ", flat=True)
    627            return f"CONSTRAINT {this} {expressions}"
    628
    629        def rowformatserdeproperty_sql(self, expression: exp.RowFormatSerdeProperty) -> str:
    630            serde_props = self.sql(expression, "serde_properties")
    631            serde_props = f" {serde_props}" if serde_props else ""
    632            return f"ROW FORMAT SERDE {self.sql(expression, 'this')}{serde_props}"
    633
    634        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    635            return self.func(
    636                "COLLECT_LIST",
    637                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    638            )
    639
    640        def datatype_sql(self, expression: exp.DataType) -> str:
    641            if expression.this in self.PARAMETERIZABLE_TEXT_TYPES and (
    642                not expression.expressions or expression.expressions[0].name == "MAX"
    643            ):
    644                expression = exp.DataType.build("text")
    645            elif expression.is_type(exp.DataType.Type.TEXT) and expression.expressions:
    646                expression.set("this", exp.DataType.Type.VARCHAR)
    647            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    648                expression = exp.DataType.build(expression.this)
    649            elif expression.is_type("float"):
    650                size_expression = expression.find(exp.DataTypeParam)
    651                if size_expression:
    652                    size = int(size_expression.name)
    653                    expression = (
    654                        exp.DataType.build("float") if size <= 32 else exp.DataType.build("double")
    655                    )
    656
    657            return super().datatype_sql(expression)
    658
    659        def version_sql(self, expression: exp.Version) -> str:
    660            sql = super().version_sql(expression)
    661            return sql.replace("FOR ", "", 1)
    662
    663        def struct_sql(self, expression: exp.Struct) -> str:
    664            values = []
    665
    666            for i, e in enumerate(expression.expressions):
    667                if isinstance(e, exp.PropertyEQ):
    668                    self.unsupported("Hive does not support named structs.")
    669                    values.append(e.expression)
    670                else:
    671                    values.append(e)
    672
    673            return self.func("STRUCT", *values)
    674
    675        def alterset_sql(self, expression: exp.AlterSet) -> str:
    676            exprs = self.expressions(expression, flat=True)
    677            exprs = f" {exprs}" if exprs else ""
    678            location = self.sql(expression, "location")
    679            location = f" LOCATION {location}" if location else ""
    680            file_format = self.expressions(expression, key="file_format", flat=True, sep=" ")
    681            file_format = f" FILEFORMAT {file_format}" if file_format else ""
    682            serde = self.sql(expression, "serde")
    683            serde = f" SERDE {serde}" if serde else ""
    684            tags = self.expressions(expression, key="tag", flat=True, sep="")
    685            tags = f" TAGS {tags}" if tags else ""
    686
    687            return f"SET{serde}{exprs}{location}{file_format}{tags}"
    688
    689        def serdeproperties_sql(self, expression: exp.SerdeProperties) -> str:
    690            prefix = "WITH " if expression.args.get("with") else ""
    691            exprs = self.expressions(expression, flat=True)
    692
    693            return f"{prefix}SERDEPROPERTIES ({exprs})"

ALIAS_POST_TABLESAMPLE = True

Whether the table alias comes after tablesample.

IDENTIFIERS_CAN_START_WITH_DIGIT = True

Whether an unquoted identifier can start with a digit.

SUPPORTS_USER_DEFINED_TYPES = False

Whether user-defined data types are supported.

SAFE_DIVISION = True

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

NORMALIZATION_STRATEGY = <NormalizationStrategy.CASE_INSENSITIVE: 'CASE_INSENSITIVE'>

Specifies the strategy according to which identifiers should be normalized.

TIME_MAPPING: Dict[str, str] = {'y': '%Y', 'Y': '%Y', 'YYYY': '%Y', 'yyyy': '%Y', 'YY': '%y', 'yy': '%y', 'MMMM': '%B', 'MMM': '%b', 'MM': '%m', 'M': '%-m', 'dd': '%d', 'd': '%-d', 'HH': '%H', 'H': '%-H', 'hh': '%I', 'h': '%-I', 'mm': '%M', 'm': '%-M', 'ss': '%S', 's': '%-S', 'SSSSSS': '%f', 'a': '%p', 'DD': '%j', 'D': '%-j', 'E': '%a', 'EE': '%a', 'EEE': '%a', 'EEEE': '%A'}

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

DATE_FORMAT = "'yyyy-MM-dd'"
DATEINT_FORMAT = "'yyyyMMdd'"
TIME_FORMAT = "'yyyy-MM-dd HH:mm:ss'"
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 'Hive.Tokenizer'>
jsonpath_tokenizer_class = <class 'sqlglot.tokens.JSONPathTokenizer'>
parser_class = <class 'Hive.Parser'>
generator_class = <class 'Hive.Generator'>
TIME_TRIE: Dict = {'y': {0: True, 'y': {'y': {'y': {0: True}}, 0: True}}, 'Y': {0: True, 'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'M': {'M': {'M': {'M': {0: True}, 0: True}, 0: True}, 0: True}, 'd': {'d': {0: True}, 0: True}, 'H': {'H': {0: True}, 0: True}, 'h': {'h': {0: True}, 0: True}, 'm': {'m': {0: True}, 0: True}, 's': {'s': {0: True}, 0: True}, 'S': {'S': {'S': {'S': {'S': {'S': {0: True}}}}}}, 'a': {0: True}, 'D': {'D': {0: True}, 0: True}, 'E': {0: True, 'E': {0: True, 'E': {0: True, 'E': {0: True}}}}}
FORMAT_TRIE: Dict = {'y': {0: True, 'y': {'y': {'y': {0: True}}, 0: True}}, 'Y': {0: True, 'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'M': {'M': {'M': {'M': {0: True}, 0: True}, 0: True}, 0: True}, 'd': {'d': {0: True}, 0: True}, 'H': {'H': {0: True}, 0: True}, 'h': {'h': {0: True}, 0: True}, 'm': {'m': {0: True}, 0: True}, 's': {'s': {0: True}, 0: True}, 'S': {'S': {'S': {'S': {'S': {'S': {0: True}}}}}}, 'a': {0: True}, 'D': {'D': {0: True}, 0: True}, 'E': {0: True, 'E': {0: True, 'E': {0: True, 'E': {0: True}}}}}
INVERSE_TIME_MAPPING: Dict[str, str] = {'%Y': 'yyyy', '%y': 'yy', '%B': 'MMMM', '%b': 'MMM', '%m': 'MM', '%-m': 'M', '%d': 'dd', '%-d': 'd', '%H': 'HH', '%-H': 'H', '%I': 'hh', '%-I': 'h', '%M': 'mm', '%-M': 'm', '%S': 'ss', '%-S': 's', '%f': 'SSSSSS', '%p': 'a', '%j': 'DD', '%-j': 'D', '%a': 'EEE', '%A': 'EEEE'}
INVERSE_TIME_TRIE: Dict = {'%': {'Y': {0: True}, 'y': {0: True}, 'B': {0: True}, 'b': {0: True}, 'm': {0: True}, '-': {'m': {0: True}, 'd': {0: True}, 'H': {0: True}, 'I': {0: True}, 'M': {0: True}, 'S': {0: True}, 'j': {0: True}}, 'd': {0: True}, 'H': {0: True}, 'I': {0: True}, 'M': {0: True}, 'S': {0: True}, 'f': {0: True}, 'p': {0: True}, 'j': {0: True}, 'a': {0: True}, 'A': {0: True}}}
INVERSE_FORMAT_MAPPING: Dict[str, str] = {}
INVERSE_FORMAT_TRIE: Dict = {}
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] = None
BIT_END: Optional[str] = None
HEX_START: Optional[str] = None
HEX_END: Optional[str] = None
BYTE_START: Optional[str] = None
BYTE_END: Optional[str] = None
UNICODE_START: Optional[str] = None
UNICODE_END: Optional[str] = None

##### Inherited Members

sqlglot.dialects.dialect.Dialect
  Dialect
  INDEX_OFFSET
  WEEK_OFFSET
  UNNEST_COLUMN_ONLY
  TABLESAMPLE_SIZE_IS_PERCENT
  DPIPE_IS_STRING_CONCAT
  STRICT_STRING_CONCAT
  SUPPORTS_SEMI_ANTI_JOIN
  COPY_PARAMS_ARE_CSV
  NORMALIZE_FUNCTIONS
  LOG_BASE_FIRST
  NULL_ORDERING
  TYPED_DIVISION
  CONCAT_COALESCE
  HEX_LOWERCASE
  FORMAT_MAPPING
  PSEUDOCOLUMNS
  PREFER_CTE_ALIAS_COLUMN
  FORCE_EARLY_ALIAS_REF_EXPANSION
  EXPAND_ALIAS_REFS_EARLY_ONLY_IN_GROUP_BY
  SUPPORTS_ORDER_BY_ALL
  DATE_PART_MAPPING
  get_or_raise
  format_time
  settings
  normalize_identifier
  case_sensitive
  can_identify
  quote_identifier
  to_json_path
  parse
  parse_into
  generate
  transpile
  tokenize
  tokenizer
  jsonpath_tokenizer
  parser
  generator

class Hive.Tokenizer(sqlglot.tokens.Tokenizer): View Source

    237    class Tokenizer(tokens.Tokenizer):
    238        QUOTES = ["'", '"']
    239        IDENTIFIERS = ["`"]
    240        STRING_ESCAPES = ["\\"]
    241
    242        SINGLE_TOKENS = {
    243            **tokens.Tokenizer.SINGLE_TOKENS,
    244            "$": TokenType.PARAMETER,
    245        }
    246
    247        KEYWORDS = {
    248            **tokens.Tokenizer.KEYWORDS,
    249            "ADD ARCHIVE": TokenType.COMMAND,
    250            "ADD ARCHIVES": TokenType.COMMAND,
    251            "ADD FILE": TokenType.COMMAND,
    252            "ADD FILES": TokenType.COMMAND,
    253            "ADD JAR": TokenType.COMMAND,
    254            "ADD JARS": TokenType.COMMAND,
    255            "MSCK REPAIR": TokenType.COMMAND,
    256            "REFRESH": TokenType.REFRESH,
    257            "TIMESTAMP AS OF": TokenType.TIMESTAMP_SNAPSHOT,
    258            "VERSION AS OF": TokenType.VERSION_SNAPSHOT,
    259            "SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    260        }
    261
    262        NUMERIC_LITERALS = {
    263            "L": "BIGINT",
    264            "S": "SMALLINT",
    265            "Y": "TINYINT",
    266            "D": "DOUBLE",
    267            "F": "FLOAT",
    268            "BD": "DECIMAL",
    269        }

QUOTES = ["'", '"']
IDENTIFIERS = ['`']
STRING_ESCAPES = ['\\']
SINGLE_TOKENS = {'(': <TokenType.L_PAREN: 'L_PAREN'>, ')': <TokenType.R_PAREN: 'R_PAREN'>, '[': <TokenType.L_BRACKET: 'L_BRACKET'>, ']': <TokenType.R_BRACKET: 'R_BRACKET'>, '{': <TokenType.L_BRACE: 'L_BRACE'>, '}': <TokenType.R_BRACE: 'R_BRACE'>, '&': <TokenType.AMP: 'AMP'>, '^': <TokenType.CARET: 'CARET'>, ':': <TokenType.COLON: 'COLON'>, ',': <TokenType.COMMA: 'COMMA'>, '.': <TokenType.DOT: 'DOT'>, '-': <TokenType.DASH: 'DASH'>, '=': <TokenType.EQ: 'EQ'>, '>': <TokenType.GT: 'GT'>, '<': <TokenType.LT: 'LT'>, '%': <TokenType.MOD: 'MOD'>, '!': <TokenType.NOT: 'NOT'>, '|': <TokenType.PIPE: 'PIPE'>, '+': <TokenType.PLUS: 'PLUS'>, ';': <TokenType.SEMICOLON: 'SEMICOLON'>, '/': <TokenType.SLASH: 'SLASH'>, '\\': <TokenType.BACKSLASH: 'BACKSLASH'>, '*': <TokenType.STAR: 'STAR'>, '~': <TokenType.TILDA: 'TILDA'>, '?': <TokenType.PLACEHOLDER: 'PLACEHOLDER'>, '@': <TokenType.PARAMETER: 'PARAMETER'>, '#': <TokenType.HASH: 'HASH'>, "'": <TokenType.UNKNOWN: 'UNKNOWN'>, '`': <TokenType.UNKNOWN: 'UNKNOWN'>, '"': <TokenType.UNKNOWN: 'UNKNOWN'>, '$': <TokenType.PARAMETER: 'PARAMETER'>}
KEYWORDS = {'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, ':=': <TokenType.COLON_EQ: 'COLON_EQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, '??': <TokenType.DQMARK: 'DQMARK'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, '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'>, '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'>, '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'>, '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.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.COMMAND: 'COMMAND'>, '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'>, 'ADD ARCHIVE': <TokenType.COMMAND: 'COMMAND'>, 'ADD ARCHIVES': <TokenType.COMMAND: 'COMMAND'>, 'ADD FILE': <TokenType.COMMAND: 'COMMAND'>, 'ADD FILES': <TokenType.COMMAND: 'COMMAND'>, 'ADD JAR': <TokenType.COMMAND: 'COMMAND'>, 'ADD JARS': <TokenType.COMMAND: 'COMMAND'>, 'MSCK REPAIR': <TokenType.COMMAND: 'COMMAND'>, 'REFRESH': <TokenType.REFRESH: 'REFRESH'>, 'TIMESTAMP AS OF': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, 'VERSION AS OF': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'SERDEPROPERTIES': <TokenType.SERDE_PROPERTIES: 'SERDE_PROPERTIES'>}
NUMERIC_LITERALS = {'L': 'BIGINT', 'S': 'SMALLINT', 'Y': 'TINYINT', 'D': 'DOUBLE', 'F': 'FLOAT', 'BD': 'DECIMAL'}

##### Inherited Members

sqlglot.tokens.Tokenizer
  Tokenizer
  BIT_STRINGS
  BYTE_STRINGS
  HEX_STRINGS
  RAW_STRINGS
  HEREDOC_STRINGS
  UNICODE_STRINGS
  IDENTIFIER_ESCAPES
  VAR_SINGLE_TOKENS
  HEREDOC_TAG_IS_IDENTIFIER
  HEREDOC_STRING_ALTERNATIVE
  STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS
  WHITE_SPACE
  COMMANDS
  COMMAND_PREFIX_TOKENS
  COMMENTS
  dialect
  reset
  tokenize
  tokenize_rs
  size
  sql
  tokens

class Hive.Parser(sqlglot.parser.Parser): View Source

    271    class Parser(parser.Parser):
    272        LOG_DEFAULTS_TO_LN = True
    273        STRICT_CAST = False
    274        VALUES_FOLLOWED_BY_PAREN = False
    275
    276        FUNCTIONS = {
    277            **parser.Parser.FUNCTIONS,
    278            "BASE64": exp.ToBase64.from_arg_list,
    279            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    280            "COLLECT_SET": exp.ArrayUniqueAgg.from_arg_list,
    281            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    282                this=seq_get(args, 0), expression=seq_get(args, 1), unit=exp.Literal.string("DAY")
    283            ),
    284            "DATE_FORMAT": lambda args: build_formatted_time(exp.TimeToStr, "hive")(
    285                [
    286                    exp.TimeStrToTime(this=seq_get(args, 0)),
    287                    seq_get(args, 1),
    288                ]
    289            ),
    290            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    291                this=seq_get(args, 0),
    292                expression=exp.Mul(this=seq_get(args, 1), expression=exp.Literal.number(-1)),
    293                unit=exp.Literal.string("DAY"),
    294            ),
    295            "DATEDIFF": lambda args: exp.DateDiff(
    296                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    297                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    298            ),
    299            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    300            "FIRST": _build_with_ignore_nulls(exp.First),
    301            "FIRST_VALUE": _build_with_ignore_nulls(exp.FirstValue),
    302            "FROM_UNIXTIME": build_formatted_time(exp.UnixToStr, "hive", True),
    303            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    304            "LAST": _build_with_ignore_nulls(exp.Last),
    305            "LAST_VALUE": _build_with_ignore_nulls(exp.LastValue),
    306            "LOCATE": locate_to_strposition,
    307            "MAP": parser.build_var_map,
    308            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    309            "PERCENTILE": exp.Quantile.from_arg_list,
    310            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    311            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    312                this=seq_get(args, 0), expression=seq_get(args, 1), group=seq_get(args, 2)
    313            ),
    314            "SIZE": exp.ArraySize.from_arg_list,
    315            "SPLIT": exp.RegexpSplit.from_arg_list,
    316            "STR_TO_MAP": lambda args: exp.StrToMap(
    317                this=seq_get(args, 0),
    318                pair_delim=seq_get(args, 1) or exp.Literal.string(","),
    319                key_value_delim=seq_get(args, 2) or exp.Literal.string(":"),
    320            ),
    321            "TO_DATE": build_formatted_time(exp.TsOrDsToDate, "hive"),
    322            "TO_JSON": exp.JSONFormat.from_arg_list,
    323            "TRUNC": exp.TimestampTrunc.from_arg_list,
    324            "UNBASE64": exp.FromBase64.from_arg_list,
    325            "UNIX_TIMESTAMP": lambda args: build_formatted_time(exp.StrToUnix, "hive", True)(
    326                args or [exp.CurrentTimestamp()]
    327            ),
    328            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    329        }
    330
    331        NO_PAREN_FUNCTION_PARSERS = {
    332            **parser.Parser.NO_PAREN_FUNCTION_PARSERS,
    333            "TRANSFORM": lambda self: self._parse_transform(),
    334        }
    335
    336        PROPERTY_PARSERS = {
    337            **parser.Parser.PROPERTY_PARSERS,
    338            "SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    339                expressions=self._parse_wrapped_csv(self._parse_property)
    340            ),
    341        }
    342
    343        def _parse_transform(self) -> t.Optional[exp.Transform | exp.QueryTransform]:
    344            if not self._match(TokenType.L_PAREN, advance=False):
    345                self._retreat(self._index - 1)
    346                return None
    347
    348            args = self._parse_wrapped_csv(self._parse_lambda)
    349            row_format_before = self._parse_row_format(match_row=True)
    350
    351            record_writer = None
    352            if self._match_text_seq("RECORDWRITER"):
    353                record_writer = self._parse_string()
    354
    355            if not self._match(TokenType.USING):
    356                return exp.Transform.from_arg_list(args)
    357
    358            command_script = self._parse_string()
    359
    360            self._match(TokenType.ALIAS)
    361            schema = self._parse_schema()
    362
    363            row_format_after = self._parse_row_format(match_row=True)
    364            record_reader = None
    365            if self._match_text_seq("RECORDREADER"):
    366                record_reader = self._parse_string()
    367
    368            return self.expression(
    369                exp.QueryTransform,
    370                expressions=args,
    371                command_script=command_script,
    372                schema=schema,
    373                row_format_before=row_format_before,
    374                record_writer=record_writer,
    375                row_format_after=row_format_after,
    376                record_reader=record_reader,
    377            )
    378
    379        def _parse_types(
    380            self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True
    381        ) -> t.Optional[exp.Expression]:
    382            """
    383            Spark (and most likely Hive) treats casts to CHAR(length) and VARCHAR(length) as casts to
    384            STRING in all contexts except for schema definitions. For example, this is in Spark v3.4.0:
    385
    386                spark-sql (default)> select cast(1234 as varchar(2));
    387                23/06/06 15:51:18 WARN CharVarcharUtils: The Spark cast operator does not support
    388                char/varchar type and simply treats them as string type. Please use string type
    389                directly to avoid confusion. Otherwise, you can set spark.sql.legacy.charVarcharAsString
    390                to true, so that Spark treat them as string type as same as Spark 3.0 and earlier
    391
    392                1234
    393                Time taken: 4.265 seconds, Fetched 1 row(s)
    394
    395            This shows that Spark doesn't truncate the value into '12', which is inconsistent with
    396            what other dialects (e.g. postgres) do, so we need to drop the length to transpile correctly.
    397
    398            Reference: https://spark.apache.org/docs/latest/sql-ref-datatypes.html
    399            """
    400            this = super()._parse_types(
    401                check_func=check_func, schema=schema, allow_identifiers=allow_identifiers
    402            )
    403
    404            if this and not schema:
    405                return this.transform(
    406                    lambda node: (
    407                        node.replace(exp.DataType.build("text"))
    408                        if isinstance(node, exp.DataType) and node.is_type("char", "varchar")
    409                        else node
    410                    ),
    411                    copy=False,
    412                )
    413
    414            return this
    415
    416        def _parse_partition_and_order(
    417            self,
    418        ) -> t.Tuple[t.List[exp.Expression], t.Optional[exp.Expression]]:
    419            return (
    420                (
    421                    self._parse_csv(self._parse_assignment)
    422                    if self._match_set({TokenType.PARTITION_BY, TokenType.DISTRIBUTE_BY})
    423                    else []
    424                ),
    425                super()._parse_order(skip_order_token=self._match(TokenType.SORT_BY)),
    426            )
    427
    428        def _parse_parameter(self) -> exp.Parameter:
    429            self._match(TokenType.L_BRACE)
    430            this = self._parse_identifier() or self._parse_primary_or_var()
    431            expression = self._match(TokenType.COLON) and (
    432                self._parse_identifier() or self._parse_primary_or_var()
    433            )
    434            self._match(TokenType.R_BRACE)
    435            return self.expression(exp.Parameter, this=this, expression=expression)

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

LOG_DEFAULTS_TO_LN = True
STRICT_CAST = False
VALUES_FOLLOWED_BY_PAREN = False
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'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Array'>>, 'ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'COALESCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConnectByRoot'>>, 'CONVERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Convert'>>, 'CORR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Corr'>>, 'COUNT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Count'>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COUNTIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COVAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarPop'>>, 'COVAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarSamp'>>, 'CURRENT_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'CURRENT_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDatetime'>>, 'CURRENT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Date'>>, 'DATE_ADD': <function Hive.Parser.<lambda>>, 'DATEDIFF': <function Hive.Parser.<lambda>>, '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 Hive.Parser.<lambda>>, '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'>>, 'DATETIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeAdd'>>, 'DATETIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeDiff'>>, 'DATETIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeSub'>>, 'DATETIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeTrunc'>>, 'DAY': <function Hive.Parser.<lambda>>, 'DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAYOFMONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAY_OF_WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FIRST': <function _build_with_ignore_nulls.<locals>._parse>, 'FIRST_VALUE': <function _build_with_ignore_nulls.<locals>._parse>, 'FLATTEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Flatten'>>, 'FLOOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Floor'>>, 'FROM_BASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase'>>, 'FROM_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'GAP_FILL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GapFill'>>, 'GENERATE_DATE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateDateArray'>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'GREATEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Greatest'>>, 'GROUP_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GroupConcat'>>, 'HEX': <function build_hex>, 'HLL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hll'>>, 'IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'IIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'INITCAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Initcap'>>, 'IS_INF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'ISINF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'IS_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'J_S_O_N_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArray'>>, 'J_S_O_N_ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayAgg'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBContains'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'JSON_EXTRACT': <function build_extract_json_with_path.<locals>._builder>, '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'>>, 'LAG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lag'>>, 'LAST': <function _build_with_ignore_nulls.<locals>._parse>, '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': <function _build_with_ignore_nulls.<locals>._parse>, '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 <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOLOR_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'LOWER': <function build_lower>, 'LCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'LOWER_HEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LowerHex'>>, 'MD5': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5'>>, 'MD5_DIGEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MAP': <function build_var_map>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <function Hive.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'>>, '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'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, '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': <function Hive.Parser.<lambda>>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <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.RegexpSplit'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDDEV_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevPop'>>, 'STDDEV_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevSamp'>>, 'STR_POSITION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToDate'>>, 'STR_TO_MAP': <function Hive.Parser.<lambda>>, '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_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'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMPFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToArray'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDays'>>, '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_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_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'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Week'>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WHEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.When'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <function Hive.Parser.<lambda>>, 'GLOB': <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>>, 'MOD': <function build_mod>, 'RPAD': <function Parser.<lambda>>, 'RIGHTPAD': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'TO_HEX': <function build_hex>, 'BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'COLLECT_LIST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, 'COLLECT_SET': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'DATE_FORMAT': <function Hive.Parser.<lambda>>, 'FROM_UNIXTIME': <function build_formatted_time.<locals>._builder>, 'GET_JSON_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtractScalar'>>, 'LOCATE': <function locate_to_strposition>, 'PERCENTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'PERCENTILE_APPROX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'TO_DATE': <function build_formatted_time.<locals>._builder>, 'TO_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'UNBASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'UNIX_TIMESTAMP': <function Hive.Parser.<lambda>>}
NO_PAREN_FUNCTION_PARSERS = {'ANY': <function Parser.<lambda>>, 'CASE': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <function Parser.<lambda>>, 'IF': <function Parser.<lambda>>, 'NEXT': <function Parser.<lambda>>, 'TRANSFORM': <function Hive.Parser.<lambda>>}
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>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <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 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>>, 'ROW': <function Parser.<lambda>>, 'ROW_FORMAT': <function Parser.<lambda>>, 'SAMPLE': <function Parser.<lambda>>, 'SECURE': <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>>, 'SERDEPROPERTIES': <function Hive.Parser.<lambda>>}
ID_VAR_TOKENS = {<TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DELETE: 'DELETE'>, <TokenType.TIME: 'TIME'>, <TokenType.MONEY: 'MONEY'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.END: 'END'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DESC: 'DESC'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.SEMI: 'SEMI'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.UUID: 'UUID'>, <TokenType.SOME: 'SOME'>, <TokenType.ASOF: 'ASOF'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.ANTI: 'ANTI'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.INET: 'INET'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LIST: 'LIST'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.USE: 'USE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.INT128: 'INT128'>, <TokenType.SET: 'SET'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.FULL: 'FULL'>, <TokenType.MODEL: 'MODEL'>, <TokenType.ANY: 'ANY'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ROW: 'ROW'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.COPY: 'COPY'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.UINT256: 'UINT256'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.DATE: 'DATE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT: 'INT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.NATURAL: 'NATURAL'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.TRUE: 'TRUE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.JSON: 'JSON'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.NEXT: 'NEXT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.KILL: 'KILL'>, <TokenType.CASE: 'CASE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.NULL: 'NULL'>, <TokenType.FINAL: 'FINAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TOP: 'TOP'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.TEXT: 'TEXT'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.KEEP: 'KEEP'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INT256: 'INT256'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.ALL: 'ALL'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.VAR: 'VAR'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.NAME: 'NAME'>, <TokenType.APPLY: 'APPLY'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.JSONB: 'JSONB'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.ASC: 'ASC'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.UINT: 'UINT'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DIV: 'DIV'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TAG: 'TAG'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FALSE: 'FALSE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.LOAD: 'LOAD'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.FIRST: 'FIRST'>, <TokenType.IS: 'IS'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.LEFT: 'LEFT'>, <TokenType.IPV4: 'IPV4'>, <TokenType.REFERENCES: 'REFERENCES'>}
TABLE_ALIAS_TOKENS = {<TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DELETE: 'DELETE'>, <TokenType.TIME: 'TIME'>, <TokenType.MONEY: 'MONEY'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.END: 'END'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DESC: 'DESC'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.UUID: 'UUID'>, <TokenType.SOME: 'SOME'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.INET: 'INET'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LIST: 'LIST'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.USE: 'USE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.INT128: 'INT128'>, <TokenType.SET: 'SET'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.MODEL: 'MODEL'>, <TokenType.ANY: 'ANY'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ROW: 'ROW'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.COPY: 'COPY'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.UINT256: 'UINT256'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.DATE: 'DATE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT: 'INT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.TRUE: 'TRUE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.JSON: 'JSON'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.NEXT: 'NEXT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.KILL: 'KILL'>, <TokenType.CASE: 'CASE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.NULL: 'NULL'>, <TokenType.FINAL: 'FINAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TOP: 'TOP'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.TEXT: 'TEXT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.KEEP: 'KEEP'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INT256: 'INT256'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.ALL: 'ALL'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.VAR: 'VAR'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.NAME: 'NAME'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.JSONB: 'JSONB'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.ASC: 'ASC'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.UINT: 'UINT'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DIV: 'DIV'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TAG: 'TAG'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FALSE: 'FALSE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.LOAD: 'LOAD'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.FIRST: 'FIRST'>, <TokenType.IS: 'IS'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.IPV4: 'IPV4'>, <TokenType.REFERENCES: 'REFERENCES'>}
SHOW_TRIE: Dict = {}
SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}}

##### Inherited Members

sqlglot.parser.Parser
  Parser
  NO_PAREN_FUNCTIONS
  STRUCT_TYPE_TOKENS
  NESTED_TYPE_TOKENS
  ENUM_TYPE_TOKENS
  AGGREGATE_TYPE_TOKENS
  TYPE_TOKENS
  SIGNED_TO_UNSIGNED_TYPE_TOKEN
  SUBQUERY_PREDICATES
  RESERVED_TOKENS
  DB_CREATABLES
  CREATABLES
  INTERVAL_VARS
  ALIAS_TOKENS
  ARRAY_CONSTRUCTORS
  COMMENT_TABLE_ALIAS_TOKENS
  UPDATE_ALIAS_TOKENS
  TRIM_TYPES
  FUNC_TOKENS
  CONJUNCTION
  ASSIGNMENT
  DISJUNCTION
  EQUALITY
  COMPARISON
  BITWISE
  TERM
  FACTOR
  EXPONENT
  TIMES
  TIMESTAMPS
  SET_OPERATIONS
  JOIN_METHODS
  JOIN_SIDES
  JOIN_KINDS
  JOIN_HINTS
  LAMBDAS
  COLUMN_OPERATORS
  EXPRESSION_PARSERS
  STATEMENT_PARSERS
  UNARY_PARSERS
  STRING_PARSERS
  NUMERIC_PARSERS
  PRIMARY_PARSERS
  PLACEHOLDER_PARSERS
  RANGE_PARSERS
  CONSTRAINT_PARSERS
  ALTER_PARSERS
  ALTER_ALTER_PARSERS
  SCHEMA_UNNAMED_CONSTRAINTS
  INVALID_FUNC_NAME_TOKENS
  FUNCTIONS_WITH_ALIASED_ARGS
  KEY_VALUE_DEFINITIONS
  FUNCTION_PARSERS
  QUERY_MODIFIER_PARSERS
  SET_PARSERS
  SHOW_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
  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
  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
  STRING_ALIASES
  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
  SUPPORTS_PARTITION_SELECTION
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  errors
  sql

class Hive.Generator(sqlglot.generator.Generator): View Source

    437    class Generator(generator.Generator):
    438        LIMIT_FETCH = "LIMIT"
    439        TABLESAMPLE_WITH_METHOD = False
    440        JOIN_HINTS = False
    441        TABLE_HINTS = False
    442        QUERY_HINTS = False
    443        INDEX_ON = "ON TABLE"
    444        EXTRACT_ALLOWS_QUOTES = False
    445        NVL2_SUPPORTED = False
    446        LAST_DAY_SUPPORTS_DATE_PART = False
    447        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
    448        SUPPORTS_TO_NUMBER = False
    449        WITH_PROPERTIES_PREFIX = "TBLPROPERTIES"
    450        PARSE_JSON_NAME = None
    451        PAD_FILL_PATTERN_IS_REQUIRED = True
    452
    453        EXPRESSIONS_WITHOUT_NESTED_CTES = {
    454            exp.Insert,
    455            exp.Select,
    456            exp.Subquery,
    457            exp.SetOperation,
    458        }
    459
    460        SUPPORTED_JSON_PATH_PARTS = {
    461            exp.JSONPathKey,
    462            exp.JSONPathRoot,
    463            exp.JSONPathSubscript,
    464            exp.JSONPathWildcard,
    465        }
    466
    467        TYPE_MAPPING = {
    468            **generator.Generator.TYPE_MAPPING,
    469            exp.DataType.Type.BIT: "BOOLEAN",
    470            exp.DataType.Type.DATETIME: "TIMESTAMP",
    471            exp.DataType.Type.ROWVERSION: "BINARY",
    472            exp.DataType.Type.TEXT: "STRING",
    473            exp.DataType.Type.TIME: "TIMESTAMP",
    474            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    475            exp.DataType.Type.UTINYINT: "SMALLINT",
    476            exp.DataType.Type.VARBINARY: "BINARY",
    477        }
    478
    479        TRANSFORMS = {
    480            **generator.Generator.TRANSFORMS,
    481            exp.Group: transforms.preprocess([transforms.unalias_group]),
    482            exp.Select: transforms.preprocess(
    483                [
    484                    transforms.eliminate_qualify,
    485                    transforms.eliminate_distinct_on,
    486                    transforms.unnest_to_explode,
    487                ]
    488            ),
    489            exp.Property: _property_sql,
    490            exp.AnyValue: rename_func("FIRST"),
    491            exp.ApproxDistinct: approx_count_distinct_sql,
    492            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
    493            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
    494            exp.ArrayConcat: rename_func("CONCAT"),
    495            exp.ArrayToString: lambda self, e: self.func("CONCAT_WS", e.expression, e.this),
    496            exp.ArraySize: rename_func("SIZE"),
    497            exp.ArraySort: _array_sort_sql,
    498            exp.With: no_recursive_cte_sql,
    499            exp.DateAdd: _add_date_sql,
    500            exp.DateDiff: _date_diff_sql,
    501            exp.DateStrToDate: datestrtodate_sql,
    502            exp.DateSub: _add_date_sql,
    503            exp.DateToDi: lambda self,
    504            e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.DATEINT_FORMAT}) AS INT)",
    505            exp.DiToDate: lambda self,
    506            e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.DATEINT_FORMAT})",
    507            exp.FileFormatProperty: lambda self,
    508            e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    509            exp.FromBase64: rename_func("UNBASE64"),
    510            exp.If: if_sql(),
    511            exp.ILike: no_ilike_sql,
    512            exp.IsNan: rename_func("ISNAN"),
    513            exp.JSONExtract: lambda self, e: self.func("GET_JSON_OBJECT", e.this, e.expression),
    514            exp.JSONExtractScalar: lambda self, e: self.func(
    515                "GET_JSON_OBJECT", e.this, e.expression
    516            ),
    517            exp.JSONFormat: _json_format_sql,
    518            exp.Left: left_to_substring_sql,
    519            exp.Map: var_map_sql,
    520            exp.Max: max_or_greatest,
    521            exp.MD5Digest: lambda self, e: self.func("UNHEX", self.func("MD5", e.this)),
    522            exp.Min: min_or_least,
    523            exp.MonthsBetween: lambda self, e: self.func("MONTHS_BETWEEN", e.this, e.expression),
    524            exp.NotNullColumnConstraint: lambda _, e: (
    525                "" if e.args.get("allow_null") else "NOT NULL"
    526            ),
    527            exp.VarMap: var_map_sql,
    528            exp.Create: preprocess(
    529                [
    530                    remove_unique_constraints,
    531                    ctas_with_tmp_tables_to_create_tmp_view,
    532                    move_schema_columns_to_partitioned_by,
    533                ]
    534            ),
    535            exp.Quantile: rename_func("PERCENTILE"),
    536            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    537            exp.RegexpExtract: regexp_extract_sql,
    538            exp.RegexpReplace: regexp_replace_sql,
    539            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    540            exp.RegexpSplit: rename_func("SPLIT"),
    541            exp.Right: right_to_substring_sql,
    542            exp.SafeDivide: no_safe_divide_sql,
    543            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    544            exp.ArrayUniqueAgg: rename_func("COLLECT_SET"),
    545            exp.Split: lambda self, e: self.func(
    546                "SPLIT", e.this, self.func("CONCAT", "'\\\\Q'", e.expression)
    547            ),
    548            exp.StrPosition: strposition_to_locate_sql,
    549            exp.StrToDate: _str_to_date_sql,
    550            exp.StrToTime: _str_to_time_sql,
    551            exp.StrToUnix: _str_to_unix_sql,
    552            exp.StructExtract: struct_extract_sql,
    553            exp.TimeStrToDate: rename_func("TO_DATE"),
    554            exp.TimeStrToTime: timestrtotime_sql,
    555            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    556            exp.TimestampTrunc: lambda self, e: self.func("TRUNC", e.this, unit_to_str(e)),
    557            exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)),
    558            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    559            exp.ToBase64: rename_func("BASE64"),
    560            exp.TsOrDiToDi: lambda self,
    561            e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    562            exp.TsOrDsAdd: _add_date_sql,
    563            exp.TsOrDsDiff: _date_diff_sql,
    564            exp.TsOrDsToDate: _to_date_sql,
    565            exp.TryCast: no_trycast_sql,
    566            exp.UnixToStr: lambda self, e: self.func(
    567                "FROM_UNIXTIME", e.this, time_format("hive")(self, e)
    568            ),
    569            exp.UnixToTime: _unix_to_time_sql,
    570            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    571            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    572            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    573            exp.National: lambda self, e: self.national_sql(e, prefix=""),
    574            exp.ClusteredColumnConstraint: lambda self,
    575            e: f"({self.expressions(e, 'this', indent=False)})",
    576            exp.NonClusteredColumnConstraint: lambda self,
    577            e: f"({self.expressions(e, 'this', indent=False)})",
    578            exp.NotForReplicationColumnConstraint: lambda *_: "",
    579            exp.OnProperty: lambda *_: "",
    580            exp.PrimaryKeyColumnConstraint: lambda *_: "PRIMARY KEY",
    581            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    582            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    583            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    584        }
    585
    586        PROPERTIES_LOCATION = {
    587            **generator.Generator.PROPERTIES_LOCATION,
    588            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    589            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    590            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    591            exp.WithDataProperty: exp.Properties.Location.UNSUPPORTED,
    592        }
    593
    594        def _jsonpathkey_sql(self, expression: exp.JSONPathKey) -> str:
    595            if isinstance(expression.this, exp.JSONPathWildcard):
    596                self.unsupported("Unsupported wildcard in JSONPathKey expression")
    597                return ""
    598
    599            return super()._jsonpathkey_sql(expression)
    600
    601        def parameter_sql(self, expression: exp.Parameter) -> str:
    602            this = self.sql(expression, "this")
    603            expression_sql = self.sql(expression, "expression")
    604
    605            parent = expression.parent
    606            this = f"{this}:{expression_sql}" if expression_sql else this
    607
    608            if isinstance(parent, exp.EQ) and isinstance(parent.parent, exp.SetItem):
    609                # We need to produce SET key = value instead of SET ${key} = value
    610                return this
    611
    612            return f"${{{this}}}"
    613
    614        def schema_sql(self, expression: exp.Schema) -> str:
    615            for ordered in expression.find_all(exp.Ordered):
    616                if ordered.args.get("desc") is False:
    617                    ordered.set("desc", None)
    618
    619            return super().schema_sql(expression)
    620
    621        def constraint_sql(self, expression: exp.Constraint) -> str:
    622            for prop in list(expression.find_all(exp.Properties)):
    623                prop.pop()
    624
    625            this = self.sql(expression, "this")
    626            expressions = self.expressions(expression, sep=" ", flat=True)
    627            return f"CONSTRAINT {this} {expressions}"
    628
    629        def rowformatserdeproperty_sql(self, expression: exp.RowFormatSerdeProperty) -> str:
    630            serde_props = self.sql(expression, "serde_properties")
    631            serde_props = f" {serde_props}" if serde_props else ""
    632            return f"ROW FORMAT SERDE {self.sql(expression, 'this')}{serde_props}"
    633
    634        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    635            return self.func(
    636                "COLLECT_LIST",
    637                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    638            )
    639
    640        def datatype_sql(self, expression: exp.DataType) -> str:
    641            if expression.this in self.PARAMETERIZABLE_TEXT_TYPES and (
    642                not expression.expressions or expression.expressions[0].name == "MAX"
    643            ):
    644                expression = exp.DataType.build("text")
    645            elif expression.is_type(exp.DataType.Type.TEXT) and expression.expressions:
    646                expression.set("this", exp.DataType.Type.VARCHAR)
    647            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    648                expression = exp.DataType.build(expression.this)
    649            elif expression.is_type("float"):
    650                size_expression = expression.find(exp.DataTypeParam)
    651                if size_expression:
    652                    size = int(size_expression.name)
    653                    expression = (
    654                        exp.DataType.build("float") if size <= 32 else exp.DataType.build("double")
    655                    )
    656
    657            return super().datatype_sql(expression)
    658
    659        def version_sql(self, expression: exp.Version) -> str:
    660            sql = super().version_sql(expression)
    661            return sql.replace("FOR ", "", 1)
    662
    663        def struct_sql(self, expression: exp.Struct) -> str:
    664            values = []
    665
    666            for i, e in enumerate(expression.expressions):
    667                if isinstance(e, exp.PropertyEQ):
    668                    self.unsupported("Hive does not support named structs.")
    669                    values.append(e.expression)
    670                else:
    671                    values.append(e)
    672
    673            return self.func("STRUCT", *values)
    674
    675        def alterset_sql(self, expression: exp.AlterSet) -> str:
    676            exprs = self.expressions(expression, flat=True)
    677            exprs = f" {exprs}" if exprs else ""
    678            location = self.sql(expression, "location")
    679            location = f" LOCATION {location}" if location else ""
    680            file_format = self.expressions(expression, key="file_format", flat=True, sep=" ")
    681            file_format = f" FILEFORMAT {file_format}" if file_format else ""
    682            serde = self.sql(expression, "serde")
    683            serde = f" SERDE {serde}" if serde else ""
    684            tags = self.expressions(expression, key="tag", flat=True, sep="")
    685            tags = f" TAGS {tags}" if tags else ""
    686
    687            return f"SET{serde}{exprs}{location}{file_format}{tags}"
    688
    689        def serdeproperties_sql(self, expression: exp.SerdeProperties) -> str:
    690            prefix = "WITH " if expression.args.get("with") else ""
    691            exprs = self.expressions(expression, flat=True)
    692
    693            return f"{prefix}SERDEPROPERTIES ({exprs})"

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

LIMIT_FETCH = 'LIMIT'
TABLESAMPLE_WITH_METHOD = False
JOIN_HINTS = False
TABLE_HINTS = False
QUERY_HINTS = False
INDEX_ON = 'ON TABLE'
EXTRACT_ALLOWS_QUOTES = False
NVL2_SUPPORTED = False
LAST_DAY_SUPPORTS_DATE_PART = False
JSON_PATH_SINGLE_QUOTE_ESCAPE = True
SUPPORTS_TO_NUMBER = False
WITH_PROPERTIES_PREFIX = 'TBLPROPERTIES'
PARSE_JSON_NAME = None
PAD_FILL_PATTERN_IS_REQUIRED = True
EXPRESSIONS_WITHOUT_NESTED_CTES = {<class 'sqlglot.expressions.SetOperation'>, <class 'sqlglot.expressions.Select'>, <class 'sqlglot.expressions.Subquery'>, <class 'sqlglot.expressions.Insert'>}
SUPPORTED_JSON_PATH_PARTS = {<class 'sqlglot.expressions.JSONPathKey'>, <class 'sqlglot.expressions.JSONPathSubscript'>, <class 'sqlglot.expressions.JSONPathRoot'>, <class 'sqlglot.expressions.JSONPathWildcard'>}
TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.TINYTEXT: 'TINYTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.TINYBLOB: 'TINYBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'BINARY', <Type.BIT: 'BIT'>: 'BOOLEAN', <Type.DATETIME: 'DATETIME'>: 'TIMESTAMP', <Type.TEXT: 'TEXT'>: 'STRING', <Type.TIME: 'TIME'>: 'TIMESTAMP', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.UTINYINT: 'UTINYINT'>: 'SMALLINT', <Type.VARBINARY: 'VARBINARY'>: 'BINARY'}
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathWildcard'>: <function <lambda>>, <class 'sqlglot.expressions.AllowedValuesProperty'>: <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 Hive.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.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.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.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtract'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function Hive.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 Hive.Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NotForReplicationColumnConstraint'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnProperty'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.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.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TagColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Timestamp'>: <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.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function var_map_sql>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Group'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.Property'>: <function _property_sql>, <class 'sqlglot.expressions.AnyValue'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ApproxDistinct'>: <function approx_count_distinct_sql>, <class 'sqlglot.expressions.ArgMax'>: <function arg_max_or_min_no_count.<locals>._arg_max_or_min_sql>, <class 'sqlglot.expressions.ArgMin'>: <function arg_max_or_min_no_count.<locals>._arg_max_or_min_sql>, <class 'sqlglot.expressions.ArrayConcat'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ArrayToString'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.ArraySize'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ArraySort'>: <function _array_sort_sql>, <class 'sqlglot.expressions.With'>: <function no_recursive_cte_sql>, <class 'sqlglot.expressions.DateAdd'>: <function _add_date_sql>, <class 'sqlglot.expressions.DateDiff'>: <function _date_diff_sql>, <class 'sqlglot.expressions.DateStrToDate'>: <function datestrtodate_sql>, <class 'sqlglot.expressions.DateSub'>: <function _add_date_sql>, <class 'sqlglot.expressions.DateToDi'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.DiToDate'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.FileFormatProperty'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.FromBase64'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.If'>: <function if_sql.<locals>._if_sql>, <class 'sqlglot.expressions.ILike'>: <function no_ilike_sql>, <class 'sqlglot.expressions.IsNan'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.JSONFormat'>: <function _json_format_sql>, <class 'sqlglot.expressions.Left'>: <function left_to_substring_sql>, <class 'sqlglot.expressions.Map'>: <function var_map_sql>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.MD5Digest'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.MonthsBetween'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.NotNullColumnConstraint'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.Create'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.Quantile'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ApproxQuantile'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.RegexpExtract'>: <function regexp_extract_sql>, <class 'sqlglot.expressions.RegexpReplace'>: <function regexp_replace_sql>, <class 'sqlglot.expressions.RegexpLike'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.RegexpSplit'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Right'>: <function right_to_substring_sql>, <class 'sqlglot.expressions.SafeDivide'>: <function no_safe_divide_sql>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.ArrayUniqueAgg'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Split'>: <function Hive.Generator.<lambda>>, <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_time_sql>, <class 'sqlglot.expressions.StrToUnix'>: <function _str_to_unix_sql>, <class 'sqlglot.expressions.StructExtract'>: <function struct_extract_sql>, <class 'sqlglot.expressions.TimeStrToDate'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function timestrtotime_sql>, <class 'sqlglot.expressions.TimeStrToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampTrunc'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ToBase64'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDiToDi'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function _add_date_sql>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function _date_diff_sql>, <class 'sqlglot.expressions.TsOrDsToDate'>: <function _to_date_sql>, <class 'sqlglot.expressions.TryCast'>: <function no_trycast_sql>, <class 'sqlglot.expressions.UnixToStr'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.UnixToTimeStr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.PartitionedByProperty'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.NumberToStr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.National'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.PrimaryKeyColumnConstraint'>: <function Hive.Generator.<lambda>>, <class 'sqlglot.expressions.WeekOfYear'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DayOfMonth'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DayOfWeek'>: <function rename_func.<locals>.<lambda>>}
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.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.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_SCHEMA: 'POST_SCHEMA'>, <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.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_SCHEMA: 'POST_SCHEMA'>, <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.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.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.TransformModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.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.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
def parameter_sql(self, expression: sqlglot.expressions.Parameter) -> str: View Source

    601        def parameter_sql(self, expression: exp.Parameter) -> str:
    602            this = self.sql(expression, "this")
    603            expression_sql = self.sql(expression, "expression")
    604
    605            parent = expression.parent
    606            this = f"{this}:{expression_sql}" if expression_sql else this
    607
    608            if isinstance(parent, exp.EQ) and isinstance(parent.parent, exp.SetItem):
    609                # We need to produce SET key = value instead of SET ${key} = value
    610                return this
    611
    612            return f"${{{this}}}"

def schema_sql(self, expression: sqlglot.expressions.Schema) -> str: View Source

    614        def schema_sql(self, expression: exp.Schema) -> str:
    615            for ordered in expression.find_all(exp.Ordered):
    616                if ordered.args.get("desc") is False:
    617                    ordered.set("desc", None)
    618
    619            return super().schema_sql(expression)

def constraint_sql(self, expression: sqlglot.expressions.Constraint) -> str: View Source

    621        def constraint_sql(self, expression: exp.Constraint) -> str:
    622            for prop in list(expression.find_all(exp.Properties)):
    623                prop.pop()
    624
    625            this = self.sql(expression, "this")
    626            expressions = self.expressions(expression, sep=" ", flat=True)
    627            return f"CONSTRAINT {this} {expressions}"

def rowformatserdeproperty_sql(self, expression: sqlglot.expressions.RowFormatSerdeProperty) -> str: View Source

    629        def rowformatserdeproperty_sql(self, expression: exp.RowFormatSerdeProperty) -> str:
    630            serde_props = self.sql(expression, "serde_properties")
    631            serde_props = f" {serde_props}" if serde_props else ""
    632            return f"ROW FORMAT SERDE {self.sql(expression, 'this')}{serde_props}"

def arrayagg_sql(self, expression: sqlglot.expressions.ArrayAgg) -> str: View Source

    634        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    635            return self.func(
    636                "COLLECT_LIST",
    637                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    638            )

def datatype_sql(self, expression: sqlglot.expressions.DataType) -> str: View Source

    640        def datatype_sql(self, expression: exp.DataType) -> str:
    641            if expression.this in self.PARAMETERIZABLE_TEXT_TYPES and (
    642                not expression.expressions or expression.expressions[0].name == "MAX"
    643            ):
    644                expression = exp.DataType.build("text")
    645            elif expression.is_type(exp.DataType.Type.TEXT) and expression.expressions:
    646                expression.set("this", exp.DataType.Type.VARCHAR)
    647            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    648                expression = exp.DataType.build(expression.this)
    649            elif expression.is_type("float"):
    650                size_expression = expression.find(exp.DataTypeParam)
    651                if size_expression:
    652                    size = int(size_expression.name)
    653                    expression = (
    654                        exp.DataType.build("float") if size <= 32 else exp.DataType.build("double")
    655                    )
    656
    657            return super().datatype_sql(expression)

def version_sql(self, expression: sqlglot.expressions.Version) -> str: View Source

    659        def version_sql(self, expression: exp.Version) -> str:
    660            sql = super().version_sql(expression)
    661            return sql.replace("FOR ", "", 1)

def struct_sql(self, expression: sqlglot.expressions.Struct) -> str: View Source

    663        def struct_sql(self, expression: exp.Struct) -> str:
    664            values = []
    665
    666            for i, e in enumerate(expression.expressions):
    667                if isinstance(e, exp.PropertyEQ):
    668                    self.unsupported("Hive does not support named structs.")
    669                    values.append(e.expression)
    670                else:
    671                    values.append(e)
    672
    673            return self.func("STRUCT", *values)

def alterset_sql(self, expression: sqlglot.expressions.AlterSet) -> str: View Source

    675        def alterset_sql(self, expression: exp.AlterSet) -> str:
    676            exprs = self.expressions(expression, flat=True)
    677            exprs = f" {exprs}" if exprs else ""
    678            location = self.sql(expression, "location")
    679            location = f" LOCATION {location}" if location else ""
    680            file_format = self.expressions(expression, key="file_format", flat=True, sep=" ")
    681            file_format = f" FILEFORMAT {file_format}" if file_format else ""
    682            serde = self.sql(expression, "serde")
    683            serde = f" SERDE {serde}" if serde else ""
    684            tags = self.expressions(expression, key="tag", flat=True, sep="")
    685            tags = f" TAGS {tags}" if tags else ""
    686
    687            return f"SET{serde}{exprs}{location}{file_format}{tags}"

def serdeproperties_sql(self, expression: sqlglot.expressions.SerdeProperties) -> str: View Source

    689        def serdeproperties_sql(self, expression: exp.SerdeProperties) -> str:
    690            prefix = "WITH " if expression.args.get("with") else ""
    691            exprs = self.expressions(expression, flat=True)
    692
    693            return f"{prefix}SERDEPROPERTIES ({exprs})"

SELECT_KINDS: Tuple[str, ...] = ()
TRY_SUPPORTED = False
SUPPORTS_UESCAPE = False

##### Inherited Members

sqlglot.generator.Generator
  Generator
  NULL_ORDERING_SUPPORTED
  IGNORE_NULLS_IN_FUNC
  LOCKING_READS_SUPPORTED
  EXPLICIT_SET_OP
  WRAP_DERIVED_VALUES
  CREATE_FUNCTION_RETURN_AS
  MATCHED_BY_SOURCE
  SINGLE_STRING_INTERVAL
  INTERVAL_ALLOWS_PLURAL_FORM
  LIMIT_ONLY_LITERALS
  RENAME_TABLE_WITH_DB
  GROUPINGS_SEP
  QUERY_HINT_SEP
  IS_BOOL_ALLOWED
  DUPLICATE_KEY_UPDATE_WITH_SET
  LIMIT_IS_TOP
  RETURNING_END
  TZ_TO_WITH_TIME_ZONE
  VALUES_AS_TABLE
  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_SEED_KEYWORD
  COLLATE_IS_FUNC
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