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# sqlglot.optimizer.annotate_types

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      1from __future__ import annotations
      2
      3import functools
      4import typing as t
      5
      6from sqlglot import exp
      7from sqlglot.helper import (
      8    ensure_list,
      9    is_date_unit,
     10    is_iso_date,
     11    is_iso_datetime,
     12    seq_get,
     13)
     14from sqlglot.optimizer.scope import Scope, traverse_scope
     15from sqlglot.schema import Schema, ensure_schema
     16from sqlglot.dialects.dialect import Dialect
     17
     18if t.TYPE_CHECKING:
     19    from sqlglot._typing import B, E
     20
     21    BinaryCoercionFunc = t.Callable[[exp.Expression, exp.Expression], exp.DataType.Type]
     22    BinaryCoercions = t.Dict[
     23        t.Tuple[exp.DataType.Type, exp.DataType.Type],
     24        BinaryCoercionFunc,
     25    ]
     26
     27    from sqlglot.dialects.dialect import DialectType, AnnotatorsType
     28
     29
     30def annotate_types(
     31    expression: E,
     32    schema: t.Optional[t.Dict | Schema] = None,
     33    annotators: t.Optional[AnnotatorsType] = None,
     34    coerces_to: t.Optional[t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]]] = None,
     35    dialect: t.Optional[DialectType] = None,
     36) -> E:
     37    """
     38    Infers the types of an expression, annotating its AST accordingly.
     39
     40    Example:
     41        >>> import sqlglot
     42        >>> schema = {"y": {"cola": "SMALLINT"}}
     43        >>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"
     44        >>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)
     45        >>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"
     46        <Type.DOUBLE: 'DOUBLE'>
     47
     48    Args:
     49        expression: Expression to annotate.
     50        schema: Database schema.
     51        annotators: Maps expression type to corresponding annotation function.
     52        coerces_to: Maps expression type to set of types that it can be coerced into.
     53
     54    Returns:
     55        The expression annotated with types.
     56    """
     57
     58    schema = ensure_schema(schema)
     59
     60    return TypeAnnotator(schema, annotators, coerces_to, dialect=dialect).annotate(expression)
     61
     62
     63def _coerce_date_literal(l: exp.Expression, unit: t.Optional[exp.Expression]) -> exp.DataType.Type:
     64    date_text = l.name
     65    is_iso_date_ = is_iso_date(date_text)
     66
     67    if is_iso_date_ and is_date_unit(unit):
     68        return exp.DataType.Type.DATE
     69
     70    # An ISO date is also an ISO datetime, but not vice versa
     71    if is_iso_date_ or is_iso_datetime(date_text):
     72        return exp.DataType.Type.DATETIME
     73
     74    return exp.DataType.Type.UNKNOWN
     75
     76
     77def _coerce_date(l: exp.Expression, unit: t.Optional[exp.Expression]) -> exp.DataType.Type:
     78    if not is_date_unit(unit):
     79        return exp.DataType.Type.DATETIME
     80    return l.type.this if l.type else exp.DataType.Type.UNKNOWN
     81
     82
     83def swap_args(func: BinaryCoercionFunc) -> BinaryCoercionFunc:
     84    @functools.wraps(func)
     85    def _swapped(l: exp.Expression, r: exp.Expression) -> exp.DataType.Type:
     86        return func(r, l)
     87
     88    return _swapped
     89
     90
     91def swap_all(coercions: BinaryCoercions) -> BinaryCoercions:
     92    return {**coercions, **{(b, a): swap_args(func) for (a, b), func in coercions.items()}}
     93
     94
     95class _TypeAnnotator(type):
     96    def __new__(cls, clsname, bases, attrs):
     97        klass = super().__new__(cls, clsname, bases, attrs)
     98
     99        # Highest-to-lowest type precedence, as specified in Spark's docs (ANSI):
    100        # https://spark.apache.org/docs/3.2.0/sql-ref-ansi-compliance.html
    101        text_precedence = (
    102            exp.DataType.Type.TEXT,
    103            exp.DataType.Type.NVARCHAR,
    104            exp.DataType.Type.VARCHAR,
    105            exp.DataType.Type.NCHAR,
    106            exp.DataType.Type.CHAR,
    107        )
    108        numeric_precedence = (
    109            exp.DataType.Type.DOUBLE,
    110            exp.DataType.Type.FLOAT,
    111            exp.DataType.Type.DECIMAL,
    112            exp.DataType.Type.BIGINT,
    113            exp.DataType.Type.INT,
    114            exp.DataType.Type.SMALLINT,
    115            exp.DataType.Type.TINYINT,
    116        )
    117        timelike_precedence = (
    118            exp.DataType.Type.TIMESTAMPLTZ,
    119            exp.DataType.Type.TIMESTAMPTZ,
    120            exp.DataType.Type.TIMESTAMP,
    121            exp.DataType.Type.DATETIME,
    122            exp.DataType.Type.DATE,
    123        )
    124
    125        for type_precedence in (text_precedence, numeric_precedence, timelike_precedence):
    126            coerces_to = set()
    127            for data_type in type_precedence:
    128                klass.COERCES_TO[data_type] = coerces_to.copy()
    129                coerces_to |= {data_type}
    130
    131        # NULL can be coerced to any type, so e.g. NULL + 1 will have type INT
    132        klass.COERCES_TO[exp.DataType.Type.NULL] = {
    133            *text_precedence,
    134            *numeric_precedence,
    135            *timelike_precedence,
    136        }
    137
    138        return klass
    139
    140
    141class TypeAnnotator(metaclass=_TypeAnnotator):
    142    NESTED_TYPES = {
    143        exp.DataType.Type.ARRAY,
    144    }
    145
    146    # Specifies what types a given type can be coerced into (autofilled)
    147    COERCES_TO: t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]] = {}
    148
    149    # Coercion functions for binary operations.
    150    # Map of type pairs to a callable that takes both sides of the binary operation and returns the resulting type.
    151    BINARY_COERCIONS: BinaryCoercions = {
    152        **swap_all(
    153            {
    154                (t, exp.DataType.Type.INTERVAL): lambda l, r: _coerce_date_literal(
    155                    l, r.args.get("unit")
    156                )
    157                for t in exp.DataType.TEXT_TYPES
    158            }
    159        ),
    160        **swap_all(
    161            {
    162                # text + numeric will yield the numeric type to match most dialects' semantics
    163                (text, numeric): lambda l, r: t.cast(
    164                    exp.DataType.Type, l.type if l.type in exp.DataType.NUMERIC_TYPES else r.type
    165                )
    166                for text in exp.DataType.TEXT_TYPES
    167                for numeric in exp.DataType.NUMERIC_TYPES
    168            }
    169        ),
    170        **swap_all(
    171            {
    172                (exp.DataType.Type.DATE, exp.DataType.Type.INTERVAL): lambda l, r: _coerce_date(
    173                    l, r.args.get("unit")
    174                ),
    175            }
    176        ),
    177    }
    178
    179    def __init__(
    180        self,
    181        schema: Schema,
    182        annotators: t.Optional[AnnotatorsType] = None,
    183        coerces_to: t.Optional[t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]]] = None,
    184        binary_coercions: t.Optional[BinaryCoercions] = None,
    185        dialect: t.Optional[DialectType] = None,
    186    ) -> None:
    187        self.schema = schema
    188        self.annotators = annotators or Dialect.get_or_raise(dialect).ANNOTATORS
    189        self.coerces_to = coerces_to or self.COERCES_TO
    190        self.binary_coercions = binary_coercions or self.BINARY_COERCIONS
    191
    192        # Caches the ids of annotated sub-Expressions, to ensure we only visit them once
    193        self._visited: t.Set[int] = set()
    194
    195        # Maps an exp.SetOperation's id (e.g. UNION) to its projection types. This is computed if the
    196        # exp.SetOperation is the expression of a scope source, as selecting from it multiple times
    197        # would reprocess the entire subtree to coerce the types of its operands' projections
    198        self._setop_column_types: t.Dict[int, t.Dict[str, exp.DataType | exp.DataType.Type]] = {}
    199
    200    def _set_type(
    201        self, expression: exp.Expression, target_type: t.Optional[exp.DataType | exp.DataType.Type]
    202    ) -> None:
    203        expression.type = target_type or exp.DataType.Type.UNKNOWN  # type: ignore
    204        self._visited.add(id(expression))
    205
    206    def annotate(self, expression: E) -> E:
    207        for scope in traverse_scope(expression):
    208            self.annotate_scope(scope)
    209        return self._maybe_annotate(expression)  # This takes care of non-traversable expressions
    210
    211    def annotate_scope(self, scope: Scope) -> None:
    212        selects = {}
    213        for name, source in scope.sources.items():
    214            if not isinstance(source, Scope):
    215                continue
    216
    217            expression = source.expression
    218            if isinstance(expression, exp.UDTF):
    219                values = []
    220
    221                if isinstance(expression, exp.Lateral):
    222                    if isinstance(expression.this, exp.Explode):
    223                        values = [expression.this.this]
    224                elif isinstance(expression, exp.Unnest):
    225                    values = [expression]
    226                else:
    227                    values = expression.expressions[0].expressions
    228
    229                if not values:
    230                    continue
    231
    232                selects[name] = {
    233                    alias: column.type
    234                    for alias, column in zip(expression.alias_column_names, values)
    235                }
    236            elif isinstance(expression, exp.SetOperation) and len(expression.left.selects) == len(
    237                expression.right.selects
    238            ):
    239                selects[name] = col_types = self._setop_column_types.setdefault(id(expression), {})
    240
    241                if not col_types:
    242                    # Process a chain / sub-tree of set operations
    243                    for set_op in expression.walk(
    244                        prune=lambda n: not isinstance(n, (exp.SetOperation, exp.Subquery))
    245                    ):
    246                        if not isinstance(set_op, exp.SetOperation):
    247                            continue
    248
    249                        if set_op.args.get("by_name"):
    250                            r_type_by_select = {
    251                                s.alias_or_name: s.type for s in set_op.right.selects
    252                            }
    253                            setop_cols = {
    254                                s.alias_or_name: self._maybe_coerce(
    255                                    t.cast(exp.DataType, s.type),
    256                                    r_type_by_select.get(s.alias_or_name)
    257                                    or exp.DataType.Type.UNKNOWN,
    258                                )
    259                                for s in set_op.left.selects
    260                            }
    261                        else:
    262                            setop_cols = {
    263                                ls.alias_or_name: self._maybe_coerce(
    264                                    t.cast(exp.DataType, ls.type), t.cast(exp.DataType, rs.type)
    265                                )
    266                                for ls, rs in zip(set_op.left.selects, set_op.right.selects)
    267                            }
    268
    269                        # Coerce intermediate results with the previously registered types, if they exist
    270                        for col_name, col_type in setop_cols.items():
    271                            col_types[col_name] = self._maybe_coerce(
    272                                col_type, col_types.get(col_name, exp.DataType.Type.NULL)
    273                            )
    274
    275            else:
    276                selects[name] = {s.alias_or_name: s.type for s in expression.selects}
    277
    278        # First annotate the current scope's column references
    279        for col in scope.columns:
    280            if not col.table:
    281                continue
    282
    283            source = scope.sources.get(col.table)
    284            if isinstance(source, exp.Table):
    285                self._set_type(col, self.schema.get_column_type(source, col))
    286            elif source:
    287                if col.table in selects and col.name in selects[col.table]:
    288                    self._set_type(col, selects[col.table][col.name])
    289                elif isinstance(source.expression, exp.Unnest):
    290                    self._set_type(col, source.expression.type)
    291
    292        # Then (possibly) annotate the remaining expressions in the scope
    293        self._maybe_annotate(scope.expression)
    294
    295    def _maybe_annotate(self, expression: E) -> E:
    296        if id(expression) in self._visited:
    297            return expression  # We've already inferred the expression's type
    298
    299        annotator = self.annotators.get(expression.__class__)
    300
    301        return (
    302            annotator(self, expression)
    303            if annotator
    304            else self._annotate_with_type(expression, exp.DataType.Type.UNKNOWN)
    305        )
    306
    307    def _annotate_args(self, expression: E) -> E:
    308        for value in expression.iter_expressions():
    309            self._maybe_annotate(value)
    310
    311        return expression
    312
    313    def _maybe_coerce(
    314        self, type1: exp.DataType | exp.DataType.Type, type2: exp.DataType | exp.DataType.Type
    315    ) -> exp.DataType | exp.DataType.Type:
    316        """
    317        Returns type2 if type1 can be coerced into it, otherwise type1.
    318
    319        If either type is parameterized (e.g. DECIMAL(18, 2) contains two parameters),
    320        we assume type1 does not coerce into type2, so we also return it in this case.
    321        """
    322        if isinstance(type1, exp.DataType):
    323            if type1.expressions:
    324                return type1
    325            type1_value = type1.this
    326        else:
    327            type1_value = type1
    328
    329        if isinstance(type2, exp.DataType):
    330            if type2.expressions:
    331                return type1
    332            type2_value = type2.this
    333        else:
    334            type2_value = type2
    335
    336        # We propagate the UNKNOWN type upwards if found
    337        if exp.DataType.Type.UNKNOWN in (type1_value, type2_value):
    338            return exp.DataType.Type.UNKNOWN
    339
    340        return type2_value if type2_value in self.coerces_to.get(type1_value, {}) else type1_value
    341
    342    def _annotate_binary(self, expression: B) -> B:
    343        self._annotate_args(expression)
    344
    345        left, right = expression.left, expression.right
    346        left_type, right_type = left.type.this, right.type.this  # type: ignore
    347
    348        if isinstance(expression, (exp.Connector, exp.Predicate)):
    349            self._set_type(expression, exp.DataType.Type.BOOLEAN)
    350        elif (left_type, right_type) in self.binary_coercions:
    351            self._set_type(expression, self.binary_coercions[(left_type, right_type)](left, right))
    352        else:
    353            self._set_type(expression, self._maybe_coerce(left_type, right_type))
    354
    355        return expression
    356
    357    def _annotate_unary(self, expression: E) -> E:
    358        self._annotate_args(expression)
    359
    360        if isinstance(expression, exp.Not):
    361            self._set_type(expression, exp.DataType.Type.BOOLEAN)
    362        else:
    363            self._set_type(expression, expression.this.type)
    364
    365        return expression
    366
    367    def _annotate_literal(self, expression: exp.Literal) -> exp.Literal:
    368        if expression.is_string:
    369            self._set_type(expression, exp.DataType.Type.VARCHAR)
    370        elif expression.is_int:
    371            self._set_type(expression, exp.DataType.Type.INT)
    372        else:
    373            self._set_type(expression, exp.DataType.Type.DOUBLE)
    374
    375        return expression
    376
    377    def _annotate_with_type(
    378        self, expression: E, target_type: exp.DataType | exp.DataType.Type
    379    ) -> E:
    380        self._set_type(expression, target_type)
    381        return self._annotate_args(expression)
    382
    383    @t.no_type_check
    384    def _annotate_by_args(
    385        self,
    386        expression: E,
    387        *args: str,
    388        promote: bool = False,
    389        array: bool = False,
    390    ) -> E:
    391        self._annotate_args(expression)
    392
    393        expressions: t.List[exp.Expression] = []
    394        for arg in args:
    395            arg_expr = expression.args.get(arg)
    396            expressions.extend(expr for expr in ensure_list(arg_expr) if expr)
    397
    398        last_datatype = None
    399        for expr in expressions:
    400            expr_type = expr.type
    401
    402            # Stop at the first nested data type found - we don't want to _maybe_coerce nested types
    403            if expr_type.args.get("nested"):
    404                last_datatype = expr_type
    405                break
    406
    407            if not expr_type.is_type(exp.DataType.Type.UNKNOWN):
    408                last_datatype = self._maybe_coerce(last_datatype or expr_type, expr_type)
    409
    410        self._set_type(expression, last_datatype or exp.DataType.Type.UNKNOWN)
    411
    412        if promote:
    413            if expression.type.this in exp.DataType.INTEGER_TYPES:
    414                self._set_type(expression, exp.DataType.Type.BIGINT)
    415            elif expression.type.this in exp.DataType.FLOAT_TYPES:
    416                self._set_type(expression, exp.DataType.Type.DOUBLE)
    417
    418        if array:
    419            self._set_type(
    420                expression,
    421                exp.DataType(
    422                    this=exp.DataType.Type.ARRAY, expressions=[expression.type], nested=True
    423                ),
    424            )
    425
    426        return expression
    427
    428    def _annotate_timeunit(
    429        self, expression: exp.TimeUnit | exp.DateTrunc
    430    ) -> exp.TimeUnit | exp.DateTrunc:
    431        self._annotate_args(expression)
    432
    433        if expression.this.type.this in exp.DataType.TEXT_TYPES:
    434            datatype = _coerce_date_literal(expression.this, expression.unit)
    435        elif expression.this.type.this in exp.DataType.TEMPORAL_TYPES:
    436            datatype = _coerce_date(expression.this, expression.unit)
    437        else:
    438            datatype = exp.DataType.Type.UNKNOWN
    439
    440        self._set_type(expression, datatype)
    441        return expression
    442
    443    def _annotate_bracket(self, expression: exp.Bracket) -> exp.Bracket:
    444        self._annotate_args(expression)
    445
    446        bracket_arg = expression.expressions[0]
    447        this = expression.this
    448
    449        if isinstance(bracket_arg, exp.Slice):
    450            self._set_type(expression, this.type)
    451        elif this.type.is_type(exp.DataType.Type.ARRAY):
    452            self._set_type(expression, seq_get(this.type.expressions, 0))
    453        elif isinstance(this, (exp.Map, exp.VarMap)) and bracket_arg in this.keys:
    454            index = this.keys.index(bracket_arg)
    455            value = seq_get(this.values, index)
    456            self._set_type(expression, value.type if value else None)
    457        else:
    458            self._set_type(expression, exp.DataType.Type.UNKNOWN)
    459
    460        return expression
    461
    462    def _annotate_div(self, expression: exp.Div) -> exp.Div:
    463        self._annotate_args(expression)
    464
    465        left_type, right_type = expression.left.type.this, expression.right.type.this  # type: ignore
    466
    467        if (
    468            expression.args.get("typed")
    469            and left_type in exp.DataType.INTEGER_TYPES
    470            and right_type in exp.DataType.INTEGER_TYPES
    471        ):
    472            self._set_type(expression, exp.DataType.Type.BIGINT)
    473        else:
    474            self._set_type(expression, self._maybe_coerce(left_type, right_type))
    475            if expression.type and expression.type.this not in exp.DataType.REAL_TYPES:
    476                self._set_type(
    477                    expression, self._maybe_coerce(expression.type, exp.DataType.Type.DOUBLE)
    478                )
    479
    480        return expression
    481
    482    def _annotate_dot(self, expression: exp.Dot) -> exp.Dot:
    483        self._annotate_args(expression)
    484        self._set_type(expression, None)
    485        this_type = expression.this.type
    486
    487        if this_type and this_type.is_type(exp.DataType.Type.STRUCT):
    488            for e in this_type.expressions:
    489                if e.name == expression.expression.name:
    490                    self._set_type(expression, e.kind)
    491                    break
    492
    493        return expression
    494
    495    def _annotate_explode(self, expression: exp.Explode) -> exp.Explode:
    496        self._annotate_args(expression)
    497        self._set_type(expression, seq_get(expression.this.type.expressions, 0))
    498        return expression
    499
    500    def _annotate_unnest(self, expression: exp.Unnest) -> exp.Unnest:
    501        self._annotate_args(expression)
    502        child = seq_get(expression.expressions, 0)
    503
    504        if child and child.is_type(exp.DataType.Type.ARRAY):
    505            expr_type = seq_get(child.type.expressions, 0)
    506        else:
    507            expr_type = None
    508
    509        self._set_type(expression, expr_type)
    510        return expression
    511
    512    def _annotate_struct_value(
    513        self, expression: exp.Expression
    514    ) -> t.Optional[exp.DataType] | exp.ColumnDef:
    515        alias = expression.args.get("alias")
    516        if alias:
    517            return exp.ColumnDef(this=alias.copy(), kind=expression.type)
    518
    519        # Case: key = value or key := value
    520        if expression.expression:
    521            return exp.ColumnDef(this=expression.this.copy(), kind=expression.expression.type)
    522
    523        return expression.type
    524
    525    def _annotate_struct(self, expression: exp.Struct) -> exp.Struct:
    526        self._annotate_args(expression)
    527        self._set_type(
    528            expression,
    529            exp.DataType(
    530                this=exp.DataType.Type.STRUCT,
    531                expressions=[self._annotate_struct_value(expr) for expr in expression.expressions],
    532                nested=True,
    533            ),
    534        )
    535        return expression
    536
    537    @t.overload
    538    def _annotate_map(self, expression: exp.Map) -> exp.Map: ...
    539
    540    @t.overload
    541    def _annotate_map(self, expression: exp.VarMap) -> exp.VarMap: ...
    542
    543    def _annotate_map(self, expression):
    544        self._annotate_args(expression)
    545
    546        keys = expression.args.get("keys")
    547        values = expression.args.get("values")
    548
    549        map_type = exp.DataType(this=exp.DataType.Type.MAP)
    550        if isinstance(keys, exp.Array) and isinstance(values, exp.Array):
    551            key_type = seq_get(keys.type.expressions, 0) or exp.DataType.Type.UNKNOWN
    552            value_type = seq_get(values.type.expressions, 0) or exp.DataType.Type.UNKNOWN
    553
    554            if key_type != exp.DataType.Type.UNKNOWN and value_type != exp.DataType.Type.UNKNOWN:
    555                map_type.set("expressions", [key_type, value_type])
    556                map_type.set("nested", True)
    557
    558        self._set_type(expression, map_type)
    559        return expression
    560
    561    def _annotate_to_map(self, expression: exp.ToMap) -> exp.ToMap:
    562        self._annotate_args(expression)
    563
    564        map_type = exp.DataType(this=exp.DataType.Type.MAP)
    565        arg = expression.this
    566        if arg.is_type(exp.DataType.Type.STRUCT):
    567            for coldef in arg.type.expressions:
    568                kind = coldef.kind
    569                if kind != exp.DataType.Type.UNKNOWN:
    570                    map_type.set("expressions", [exp.DataType.build("varchar"), kind])
    571                    map_type.set("nested", True)
    572                    break
    573
    574        self._set_type(expression, map_type)
    575        return expression
    576
    577    def _annotate_extract(self, expression: exp.Extract) -> exp.Extract:
    578        self._annotate_args(expression)
    579        part = expression.name
    580        if part == "TIME":
    581            self._set_type(expression, exp.DataType.Type.TIME)
    582        elif part == "DATE":
    583            self._set_type(expression, exp.DataType.Type.DATE)
    584        else:
    585            self._set_type(expression, exp.DataType.Type.INT)
    586        return expression

def annotate_types( expression: ~E, schema: Union[Dict, sqlglot.schema.Schema, NoneType] = None, annotators: Optional[Dict[Type[~E], Callable[[TypeAnnotator, ~E], ~E]]] = None, coerces_to: Optional[Dict[sqlglot.expressions.DataType.Type, Set[sqlglot.expressions.DataType.Type]]] = None, dialect: Union[str, sqlglot.dialects.Dialect, Type[sqlglot.dialects.Dialect], NoneType] = None) -> ~E: View Source

    31def annotate_types(
    32    expression: E,
    33    schema: t.Optional[t.Dict | Schema] = None,
    34    annotators: t.Optional[AnnotatorsType] = None,
    35    coerces_to: t.Optional[t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]]] = None,
    36    dialect: t.Optional[DialectType] = None,
    37) -> E:
    38    """
    39    Infers the types of an expression, annotating its AST accordingly.
    40
    41    Example:
    42        >>> import sqlglot
    43        >>> schema = {"y": {"cola": "SMALLINT"}}
    44        >>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"
    45        >>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)
    46        >>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"
    47        <Type.DOUBLE: 'DOUBLE'>
    48
    49    Args:
    50        expression: Expression to annotate.
    51        schema: Database schema.
    52        annotators: Maps expression type to corresponding annotation function.
    53        coerces_to: Maps expression type to set of types that it can be coerced into.
    54
    55    Returns:
    56        The expression annotated with types.
    57    """
    58
    59    schema = ensure_schema(schema)
    60
    61    return TypeAnnotator(schema, annotators, coerces_to, dialect=dialect).annotate(expression)

Infers the types of an expression, annotating its AST accordingly.

###### Example:

>     >>> import sqlglot
>     >>> schema = {"y": {"cola": "SMALLINT"}}
>     >>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"
>     >>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)
>     >>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"
>     <Type.DOUBLE: 'DOUBLE'>

###### Arguments:

- expression: Expression to annotate.
- schema: Database schema.
- annotators: Maps expression type to corresponding annotation function.
- coerces_to: Maps expression type to set of types that it can be coerced into.

###### Returns:

> The expression annotated with types.

def swap_args( func: Callable[[sqlglot.expressions.Expression, sqlglot.expressions.Expression], sqlglot.expressions.DataType.Type]) -> Callable[[sqlglot.expressions.Expression, sqlglot.expressions.Expression], sqlglot.expressions.DataType.Type]: View Source

    84def swap_args(func: BinaryCoercionFunc) -> BinaryCoercionFunc:
    85    @functools.wraps(func)
    86    def _swapped(l: exp.Expression, r: exp.Expression) -> exp.DataType.Type:
    87        return func(r, l)
    88
    89    return _swapped

def swap_all( coercions: Dict[Tuple[sqlglot.expressions.DataType.Type, sqlglot.expressions.DataType.Type], Callable[[sqlglot.expressions.Expression, sqlglot.expressions.Expression], sqlglot.expressions.DataType.Type]]) -> Dict[Tuple[sqlglot.expressions.DataType.Type, sqlglot.expressions.DataType.Type], Callable[[sqlglot.expressions.Expression, sqlglot.expressions.Expression], sqlglot.expressions.DataType.Type]]: View Source

    92def swap_all(coercions: BinaryCoercions) -> BinaryCoercions:
    93    return {**coercions, **{(b, a): swap_args(func) for (a, b), func in coercions.items()}}

class TypeAnnotator: View Source

    142class TypeAnnotator(metaclass=_TypeAnnotator):
    143    NESTED_TYPES = {
    144        exp.DataType.Type.ARRAY,
    145    }
    146
    147    # Specifies what types a given type can be coerced into (autofilled)
    148    COERCES_TO: t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]] = {}
    149
    150    # Coercion functions for binary operations.
    151    # Map of type pairs to a callable that takes both sides of the binary operation and returns the resulting type.
    152    BINARY_COERCIONS: BinaryCoercions = {
    153        **swap_all(
    154            {
    155                (t, exp.DataType.Type.INTERVAL): lambda l, r: _coerce_date_literal(
    156                    l, r.args.get("unit")
    157                )
    158                for t in exp.DataType.TEXT_TYPES
    159            }
    160        ),
    161        **swap_all(
    162            {
    163                # text + numeric will yield the numeric type to match most dialects' semantics
    164                (text, numeric): lambda l, r: t.cast(
    165                    exp.DataType.Type, l.type if l.type in exp.DataType.NUMERIC_TYPES else r.type
    166                )
    167                for text in exp.DataType.TEXT_TYPES
    168                for numeric in exp.DataType.NUMERIC_TYPES
    169            }
    170        ),
    171        **swap_all(
    172            {
    173                (exp.DataType.Type.DATE, exp.DataType.Type.INTERVAL): lambda l, r: _coerce_date(
    174                    l, r.args.get("unit")
    175                ),
    176            }
    177        ),
    178    }
    179
    180    def __init__(
    181        self,
    182        schema: Schema,
    183        annotators: t.Optional[AnnotatorsType] = None,
    184        coerces_to: t.Optional[t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]]] = None,
    185        binary_coercions: t.Optional[BinaryCoercions] = None,
    186        dialect: t.Optional[DialectType] = None,
    187    ) -> None:
    188        self.schema = schema
    189        self.annotators = annotators or Dialect.get_or_raise(dialect).ANNOTATORS
    190        self.coerces_to = coerces_to or self.COERCES_TO
    191        self.binary_coercions = binary_coercions or self.BINARY_COERCIONS
    192
    193        # Caches the ids of annotated sub-Expressions, to ensure we only visit them once
    194        self._visited: t.Set[int] = set()
    195
    196        # Maps an exp.SetOperation's id (e.g. UNION) to its projection types. This is computed if the
    197        # exp.SetOperation is the expression of a scope source, as selecting from it multiple times
    198        # would reprocess the entire subtree to coerce the types of its operands' projections
    199        self._setop_column_types: t.Dict[int, t.Dict[str, exp.DataType | exp.DataType.Type]] = {}
    200
    201    def _set_type(
    202        self, expression: exp.Expression, target_type: t.Optional[exp.DataType | exp.DataType.Type]
    203    ) -> None:
    204        expression.type = target_type or exp.DataType.Type.UNKNOWN  # type: ignore
    205        self._visited.add(id(expression))
    206
    207    def annotate(self, expression: E) -> E:
    208        for scope in traverse_scope(expression):
    209            self.annotate_scope(scope)
    210        return self._maybe_annotate(expression)  # This takes care of non-traversable expressions
    211
    212    def annotate_scope(self, scope: Scope) -> None:
    213        selects = {}
    214        for name, source in scope.sources.items():
    215            if not isinstance(source, Scope):
    216                continue
    217
    218            expression = source.expression
    219            if isinstance(expression, exp.UDTF):
    220                values = []
    221
    222                if isinstance(expression, exp.Lateral):
    223                    if isinstance(expression.this, exp.Explode):
    224                        values = [expression.this.this]
    225                elif isinstance(expression, exp.Unnest):
    226                    values = [expression]
    227                else:
    228                    values = expression.expressions[0].expressions
    229
    230                if not values:
    231                    continue
    232
    233                selects[name] = {
    234                    alias: column.type
    235                    for alias, column in zip(expression.alias_column_names, values)
    236                }
    237            elif isinstance(expression, exp.SetOperation) and len(expression.left.selects) == len(
    238                expression.right.selects
    239            ):
    240                selects[name] = col_types = self._setop_column_types.setdefault(id(expression), {})
    241
    242                if not col_types:
    243                    # Process a chain / sub-tree of set operations
    244                    for set_op in expression.walk(
    245                        prune=lambda n: not isinstance(n, (exp.SetOperation, exp.Subquery))
    246                    ):
    247                        if not isinstance(set_op, exp.SetOperation):
    248                            continue
    249
    250                        if set_op.args.get("by_name"):
    251                            r_type_by_select = {
    252                                s.alias_or_name: s.type for s in set_op.right.selects
    253                            }
    254                            setop_cols = {
    255                                s.alias_or_name: self._maybe_coerce(
    256                                    t.cast(exp.DataType, s.type),
    257                                    r_type_by_select.get(s.alias_or_name)
    258                                    or exp.DataType.Type.UNKNOWN,
    259                                )
    260                                for s in set_op.left.selects
    261                            }
    262                        else:
    263                            setop_cols = {
    264                                ls.alias_or_name: self._maybe_coerce(
    265                                    t.cast(exp.DataType, ls.type), t.cast(exp.DataType, rs.type)
    266                                )
    267                                for ls, rs in zip(set_op.left.selects, set_op.right.selects)
    268                            }
    269
    270                        # Coerce intermediate results with the previously registered types, if they exist
    271                        for col_name, col_type in setop_cols.items():
    272                            col_types[col_name] = self._maybe_coerce(
    273                                col_type, col_types.get(col_name, exp.DataType.Type.NULL)
    274                            )
    275
    276            else:
    277                selects[name] = {s.alias_or_name: s.type for s in expression.selects}
    278
    279        # First annotate the current scope's column references
    280        for col in scope.columns:
    281            if not col.table:
    282                continue
    283
    284            source = scope.sources.get(col.table)
    285            if isinstance(source, exp.Table):
    286                self._set_type(col, self.schema.get_column_type(source, col))
    287            elif source:
    288                if col.table in selects and col.name in selects[col.table]:
    289                    self._set_type(col, selects[col.table][col.name])
    290                elif isinstance(source.expression, exp.Unnest):
    291                    self._set_type(col, source.expression.type)
    292
    293        # Then (possibly) annotate the remaining expressions in the scope
    294        self._maybe_annotate(scope.expression)
    295
    296    def _maybe_annotate(self, expression: E) -> E:
    297        if id(expression) in self._visited:
    298            return expression  # We've already inferred the expression's type
    299
    300        annotator = self.annotators.get(expression.__class__)
    301
    302        return (
    303            annotator(self, expression)
    304            if annotator
    305            else self._annotate_with_type(expression, exp.DataType.Type.UNKNOWN)
    306        )
    307
    308    def _annotate_args(self, expression: E) -> E:
    309        for value in expression.iter_expressions():
    310            self._maybe_annotate(value)
    311
    312        return expression
    313
    314    def _maybe_coerce(
    315        self, type1: exp.DataType | exp.DataType.Type, type2: exp.DataType | exp.DataType.Type
    316    ) -> exp.DataType | exp.DataType.Type:
    317        """
    318        Returns type2 if type1 can be coerced into it, otherwise type1.
    319
    320        If either type is parameterized (e.g. DECIMAL(18, 2) contains two parameters),
    321        we assume type1 does not coerce into type2, so we also return it in this case.
    322        """
    323        if isinstance(type1, exp.DataType):
    324            if type1.expressions:
    325                return type1
    326            type1_value = type1.this
    327        else:
    328            type1_value = type1
    329
    330        if isinstance(type2, exp.DataType):
    331            if type2.expressions:
    332                return type1
    333            type2_value = type2.this
    334        else:
    335            type2_value = type2
    336
    337        # We propagate the UNKNOWN type upwards if found
    338        if exp.DataType.Type.UNKNOWN in (type1_value, type2_value):
    339            return exp.DataType.Type.UNKNOWN
    340
    341        return type2_value if type2_value in self.coerces_to.get(type1_value, {}) else type1_value
    342
    343    def _annotate_binary(self, expression: B) -> B:
    344        self._annotate_args(expression)
    345
    346        left, right = expression.left, expression.right
    347        left_type, right_type = left.type.this, right.type.this  # type: ignore
    348
    349        if isinstance(expression, (exp.Connector, exp.Predicate)):
    350            self._set_type(expression, exp.DataType.Type.BOOLEAN)
    351        elif (left_type, right_type) in self.binary_coercions:
    352            self._set_type(expression, self.binary_coercions[(left_type, right_type)](left, right))
    353        else:
    354            self._set_type(expression, self._maybe_coerce(left_type, right_type))
    355
    356        return expression
    357
    358    def _annotate_unary(self, expression: E) -> E:
    359        self._annotate_args(expression)
    360
    361        if isinstance(expression, exp.Not):
    362            self._set_type(expression, exp.DataType.Type.BOOLEAN)
    363        else:
    364            self._set_type(expression, expression.this.type)
    365
    366        return expression
    367
    368    def _annotate_literal(self, expression: exp.Literal) -> exp.Literal:
    369        if expression.is_string:
    370            self._set_type(expression, exp.DataType.Type.VARCHAR)
    371        elif expression.is_int:
    372            self._set_type(expression, exp.DataType.Type.INT)
    373        else:
    374            self._set_type(expression, exp.DataType.Type.DOUBLE)
    375
    376        return expression
    377
    378    def _annotate_with_type(
    379        self, expression: E, target_type: exp.DataType | exp.DataType.Type
    380    ) -> E:
    381        self._set_type(expression, target_type)
    382        return self._annotate_args(expression)
    383
    384    @t.no_type_check
    385    def _annotate_by_args(
    386        self,
    387        expression: E,
    388        *args: str,
    389        promote: bool = False,
    390        array: bool = False,
    391    ) -> E:
    392        self._annotate_args(expression)
    393
    394        expressions: t.List[exp.Expression] = []
    395        for arg in args:
    396            arg_expr = expression.args.get(arg)
    397            expressions.extend(expr for expr in ensure_list(arg_expr) if expr)
    398
    399        last_datatype = None
    400        for expr in expressions:
    401            expr_type = expr.type
    402
    403            # Stop at the first nested data type found - we don't want to _maybe_coerce nested types
    404            if expr_type.args.get("nested"):
    405                last_datatype = expr_type
    406                break
    407
    408            if not expr_type.is_type(exp.DataType.Type.UNKNOWN):
    409                last_datatype = self._maybe_coerce(last_datatype or expr_type, expr_type)
    410
    411        self._set_type(expression, last_datatype or exp.DataType.Type.UNKNOWN)
    412
    413        if promote:
    414            if expression.type.this in exp.DataType.INTEGER_TYPES:
    415                self._set_type(expression, exp.DataType.Type.BIGINT)
    416            elif expression.type.this in exp.DataType.FLOAT_TYPES:
    417                self._set_type(expression, exp.DataType.Type.DOUBLE)
    418
    419        if array:
    420            self._set_type(
    421                expression,
    422                exp.DataType(
    423                    this=exp.DataType.Type.ARRAY, expressions=[expression.type], nested=True
    424                ),
    425            )
    426
    427        return expression
    428
    429    def _annotate_timeunit(
    430        self, expression: exp.TimeUnit | exp.DateTrunc
    431    ) -> exp.TimeUnit | exp.DateTrunc:
    432        self._annotate_args(expression)
    433
    434        if expression.this.type.this in exp.DataType.TEXT_TYPES:
    435            datatype = _coerce_date_literal(expression.this, expression.unit)
    436        elif expression.this.type.this in exp.DataType.TEMPORAL_TYPES:
    437            datatype = _coerce_date(expression.this, expression.unit)
    438        else:
    439            datatype = exp.DataType.Type.UNKNOWN
    440
    441        self._set_type(expression, datatype)
    442        return expression
    443
    444    def _annotate_bracket(self, expression: exp.Bracket) -> exp.Bracket:
    445        self._annotate_args(expression)
    446
    447        bracket_arg = expression.expressions[0]
    448        this = expression.this
    449
    450        if isinstance(bracket_arg, exp.Slice):
    451            self._set_type(expression, this.type)
    452        elif this.type.is_type(exp.DataType.Type.ARRAY):
    453            self._set_type(expression, seq_get(this.type.expressions, 0))
    454        elif isinstance(this, (exp.Map, exp.VarMap)) and bracket_arg in this.keys:
    455            index = this.keys.index(bracket_arg)
    456            value = seq_get(this.values, index)
    457            self._set_type(expression, value.type if value else None)
    458        else:
    459            self._set_type(expression, exp.DataType.Type.UNKNOWN)
    460
    461        return expression
    462
    463    def _annotate_div(self, expression: exp.Div) -> exp.Div:
    464        self._annotate_args(expression)
    465
    466        left_type, right_type = expression.left.type.this, expression.right.type.this  # type: ignore
    467
    468        if (
    469            expression.args.get("typed")
    470            and left_type in exp.DataType.INTEGER_TYPES
    471            and right_type in exp.DataType.INTEGER_TYPES
    472        ):
    473            self._set_type(expression, exp.DataType.Type.BIGINT)
    474        else:
    475            self._set_type(expression, self._maybe_coerce(left_type, right_type))
    476            if expression.type and expression.type.this not in exp.DataType.REAL_TYPES:
    477                self._set_type(
    478                    expression, self._maybe_coerce(expression.type, exp.DataType.Type.DOUBLE)
    479                )
    480
    481        return expression
    482
    483    def _annotate_dot(self, expression: exp.Dot) -> exp.Dot:
    484        self._annotate_args(expression)
    485        self._set_type(expression, None)
    486        this_type = expression.this.type
    487
    488        if this_type and this_type.is_type(exp.DataType.Type.STRUCT):
    489            for e in this_type.expressions:
    490                if e.name == expression.expression.name:
    491                    self._set_type(expression, e.kind)
    492                    break
    493
    494        return expression
    495
    496    def _annotate_explode(self, expression: exp.Explode) -> exp.Explode:
    497        self._annotate_args(expression)
    498        self._set_type(expression, seq_get(expression.this.type.expressions, 0))
    499        return expression
    500
    501    def _annotate_unnest(self, expression: exp.Unnest) -> exp.Unnest:
    502        self._annotate_args(expression)
    503        child = seq_get(expression.expressions, 0)
    504
    505        if child and child.is_type(exp.DataType.Type.ARRAY):
    506            expr_type = seq_get(child.type.expressions, 0)
    507        else:
    508            expr_type = None
    509
    510        self._set_type(expression, expr_type)
    511        return expression
    512
    513    def _annotate_struct_value(
    514        self, expression: exp.Expression
    515    ) -> t.Optional[exp.DataType] | exp.ColumnDef:
    516        alias = expression.args.get("alias")
    517        if alias:
    518            return exp.ColumnDef(this=alias.copy(), kind=expression.type)
    519
    520        # Case: key = value or key := value
    521        if expression.expression:
    522            return exp.ColumnDef(this=expression.this.copy(), kind=expression.expression.type)
    523
    524        return expression.type
    525
    526    def _annotate_struct(self, expression: exp.Struct) -> exp.Struct:
    527        self._annotate_args(expression)
    528        self._set_type(
    529            expression,
    530            exp.DataType(
    531                this=exp.DataType.Type.STRUCT,
    532                expressions=[self._annotate_struct_value(expr) for expr in expression.expressions],
    533                nested=True,
    534            ),
    535        )
    536        return expression
    537
    538    @t.overload
    539    def _annotate_map(self, expression: exp.Map) -> exp.Map: ...
    540
    541    @t.overload
    542    def _annotate_map(self, expression: exp.VarMap) -> exp.VarMap: ...
    543
    544    def _annotate_map(self, expression):
    545        self._annotate_args(expression)
    546
    547        keys = expression.args.get("keys")
    548        values = expression.args.get("values")
    549
    550        map_type = exp.DataType(this=exp.DataType.Type.MAP)
    551        if isinstance(keys, exp.Array) and isinstance(values, exp.Array):
    552            key_type = seq_get(keys.type.expressions, 0) or exp.DataType.Type.UNKNOWN
    553            value_type = seq_get(values.type.expressions, 0) or exp.DataType.Type.UNKNOWN
    554
    555            if key_type != exp.DataType.Type.UNKNOWN and value_type != exp.DataType.Type.UNKNOWN:
    556                map_type.set("expressions", [key_type, value_type])
    557                map_type.set("nested", True)
    558
    559        self._set_type(expression, map_type)
    560        return expression
    561
    562    def _annotate_to_map(self, expression: exp.ToMap) -> exp.ToMap:
    563        self._annotate_args(expression)
    564
    565        map_type = exp.DataType(this=exp.DataType.Type.MAP)
    566        arg = expression.this
    567        if arg.is_type(exp.DataType.Type.STRUCT):
    568            for coldef in arg.type.expressions:
    569                kind = coldef.kind
    570                if kind != exp.DataType.Type.UNKNOWN:
    571                    map_type.set("expressions", [exp.DataType.build("varchar"), kind])
    572                    map_type.set("nested", True)
    573                    break
    574
    575        self._set_type(expression, map_type)
    576        return expression
    577
    578    def _annotate_extract(self, expression: exp.Extract) -> exp.Extract:
    579        self._annotate_args(expression)
    580        part = expression.name
    581        if part == "TIME":
    582            self._set_type(expression, exp.DataType.Type.TIME)
    583        elif part == "DATE":
    584            self._set_type(expression, exp.DataType.Type.DATE)
    585        else:
    586            self._set_type(expression, exp.DataType.Type.INT)
    587        return expression

TypeAnnotator( schema: sqlglot.schema.Schema, annotators: Optional[Dict[Type[~E], Callable[[TypeAnnotator, ~E], ~E]]] = None, coerces_to: Optional[Dict[sqlglot.expressions.DataType.Type, Set[sqlglot.expressions.DataType.Type]]] = None, binary_coercions: Optional[Dict[Tuple[sqlglot.expressions.DataType.Type, sqlglot.expressions.DataType.Type], Callable[[sqlglot.expressions.Expression, sqlglot.expressions.Expression], sqlglot.expressions.DataType.Type]]] = None, dialect: Union[str, sqlglot.dialects.Dialect, Type[sqlglot.dialects.Dialect], NoneType] = None) View Source

    180    def __init__(
    181        self,
    182        schema: Schema,
    183        annotators: t.Optional[AnnotatorsType] = None,
    184        coerces_to: t.Optional[t.Dict[exp.DataType.Type, t.Set[exp.DataType.Type]]] = None,
    185        binary_coercions: t.Optional[BinaryCoercions] = None,
    186        dialect: t.Optional[DialectType] = None,
    187    ) -> None:
    188        self.schema = schema
    189        self.annotators = annotators or Dialect.get_or_raise(dialect).ANNOTATORS
    190        self.coerces_to = coerces_to or self.COERCES_TO
    191        self.binary_coercions = binary_coercions or self.BINARY_COERCIONS
    192
    193        # Caches the ids of annotated sub-Expressions, to ensure we only visit them once
    194        self._visited: t.Set[int] = set()
    195
    196        # Maps an exp.SetOperation's id (e.g. UNION) to its projection types. This is computed if the
    197        # exp.SetOperation is the expression of a scope source, as selecting from it multiple times
    198        # would reprocess the entire subtree to coerce the types of its operands' projections
    199        self._setop_column_types: t.Dict[int, t.Dict[str, exp.DataType | exp.DataType.Type]] = {}

NESTED_TYPES = {<Type.ARRAY: 'ARRAY'>}
COERCES_TO: Dict[sqlglot.expressions.DataType.Type, Set[sqlglot.expressions.DataType.Type]] = {<Type.TEXT: 'TEXT'>: set(), <Type.NVARCHAR: 'NVARCHAR'>: {<Type.TEXT: 'TEXT'>}, <Type.VARCHAR: 'VARCHAR'>: {<Type.TEXT: 'TEXT'>, <Type.NVARCHAR: 'NVARCHAR'>}, <Type.NCHAR: 'NCHAR'>: {<Type.TEXT: 'TEXT'>, <Type.VARCHAR: 'VARCHAR'>, <Type.NVARCHAR: 'NVARCHAR'>}, <Type.CHAR: 'CHAR'>: {<Type.NCHAR: 'NCHAR'>, <Type.TEXT: 'TEXT'>, <Type.VARCHAR: 'VARCHAR'>, <Type.NVARCHAR: 'NVARCHAR'>}, <Type.DOUBLE: 'DOUBLE'>: set(), <Type.FLOAT: 'FLOAT'>: {<Type.DOUBLE: 'DOUBLE'>}, <Type.DECIMAL: 'DECIMAL'>: {<Type.FLOAT: 'FLOAT'>, <Type.DOUBLE: 'DOUBLE'>}, <Type.BIGINT: 'BIGINT'>: {<Type.FLOAT: 'FLOAT'>, <Type.DOUBLE: 'DOUBLE'>, <Type.DECIMAL: 'DECIMAL'>}, <Type.INT: 'INT'>: {<Type.BIGINT: 'BIGINT'>, <Type.FLOAT: 'FLOAT'>, <Type.DOUBLE: 'DOUBLE'>, <Type.DECIMAL: 'DECIMAL'>}, <Type.SMALLINT: 'SMALLINT'>: {<Type.FLOAT: 'FLOAT'>, <Type.INT: 'INT'>, <Type.BIGINT: 'BIGINT'>, <Type.DOUBLE: 'DOUBLE'>, <Type.DECIMAL: 'DECIMAL'>}, <Type.TINYINT: 'TINYINT'>: {<Type.FLOAT: 'FLOAT'>, <Type.SMALLINT: 'SMALLINT'>, <Type.INT: 'INT'>, <Type.BIGINT: 'BIGINT'>, <Type.DOUBLE: 'DOUBLE'>, <Type.DECIMAL: 'DECIMAL'>}, <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: set(), <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: {<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>}, <Type.TIMESTAMP: 'TIMESTAMP'>: {<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>}, <Type.DATETIME: 'DATETIME'>: {<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <Type.TIMESTAMP: 'TIMESTAMP'>}, <Type.DATE: 'DATE'>: {<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <Type.TIMESTAMP: 'TIMESTAMP'>, <Type.DATETIME: 'DATETIME'>}, <Type.NULL: 'NULL'>: {<Type.CHAR: 'CHAR'>, <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TEXT: 'TEXT'>, <Type.DATETIME: 'DATETIME'>, <Type.INT: 'INT'>, <Type.BIGINT: 'BIGINT'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <Type.TIMESTAMP: 'TIMESTAMP'>, <Type.DOUBLE: 'DOUBLE'>, <Type.NCHAR: 'NCHAR'>, <Type.DECIMAL: 'DECIMAL'>, <Type.FLOAT: 'FLOAT'>, <Type.DATE: 'DATE'>, <Type.NVARCHAR: 'NVARCHAR'>, <Type.SMALLINT: 'SMALLINT'>, <Type.VARCHAR: 'VARCHAR'>, <Type.TINYINT: 'TINYINT'>}}
BINARY_COERCIONS: Dict[Tuple[sqlglot.expressions.DataType.Type, sqlglot.expressions.DataType.Type], Callable[[sqlglot.expressions.Expression, sqlglot.expressions.Expression], sqlglot.expressions.DataType.Type]] = {(<Type.CHAR: 'CHAR'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.MONEY: 'MONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UINT128: 'UINT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.BIGINT: 'BIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.DECIMAL32: 'DECIMAL32'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.DOUBLE: 'DOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.INT256: 'INT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.DECIMAL: 'DECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.USMALLINT: 'USMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.DECIMAL256: 'DECIMAL256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.DECIMAL64: 'DECIMAL64'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.DECIMAL128: 'DECIMAL128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.SMALLINT: 'SMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UTINYINT: 'UTINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.TINYINT: 'TINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.SMALLMONEY: 'SMALLMONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UDOUBLE: 'UDOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UDECIMAL: 'UDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.BIT: 'BIT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.INT128: 'INT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UINT: 'UINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.MEDIUMINT: 'MEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.FLOAT: 'FLOAT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.INT: 'INT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UINT256: 'UINT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.CHAR: 'CHAR'>, <Type.UBIGINT: 'UBIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.MONEY: 'MONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UINT128: 'UINT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.BIGINT: 'BIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.DECIMAL32: 'DECIMAL32'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.DOUBLE: 'DOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.INT256: 'INT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.DECIMAL: 'DECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.USMALLINT: 'USMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.DECIMAL256: 'DECIMAL256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.DECIMAL64: 'DECIMAL64'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.DECIMAL128: 'DECIMAL128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.SMALLINT: 'SMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UTINYINT: 'UTINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.TINYINT: 'TINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.SMALLMONEY: 'SMALLMONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UDOUBLE: 'UDOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UDECIMAL: 'UDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.BIT: 'BIT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.INT128: 'INT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UINT: 'UINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.MEDIUMINT: 'MEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.FLOAT: 'FLOAT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.INT: 'INT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UINT256: 'UINT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TEXT: 'TEXT'>, <Type.UBIGINT: 'UBIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.MONEY: 'MONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UINT128: 'UINT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.BIGINT: 'BIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.DECIMAL32: 'DECIMAL32'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.DOUBLE: 'DOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.INT256: 'INT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.DECIMAL: 'DECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.USMALLINT: 'USMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.DECIMAL256: 'DECIMAL256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.DECIMAL64: 'DECIMAL64'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.DECIMAL128: 'DECIMAL128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.SMALLINT: 'SMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UTINYINT: 'UTINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.TINYINT: 'TINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.SMALLMONEY: 'SMALLMONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UDOUBLE: 'UDOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UDECIMAL: 'UDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.BIT: 'BIT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.INT128: 'INT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UINT: 'UINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.MEDIUMINT: 'MEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.FLOAT: 'FLOAT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.INT: 'INT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UINT256: 'UINT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NCHAR: 'NCHAR'>, <Type.UBIGINT: 'UBIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.MONEY: 'MONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UINT128: 'UINT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.BIGINT: 'BIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.DECIMAL32: 'DECIMAL32'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.DOUBLE: 'DOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.INT256: 'INT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.DECIMAL: 'DECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.USMALLINT: 'USMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.DECIMAL256: 'DECIMAL256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.DECIMAL64: 'DECIMAL64'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.DECIMAL128: 'DECIMAL128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.SMALLINT: 'SMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UTINYINT: 'UTINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.TINYINT: 'TINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.SMALLMONEY: 'SMALLMONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UDOUBLE: 'UDOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UDECIMAL: 'UDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.BIT: 'BIT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.INT128: 'INT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UINT: 'UINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.MEDIUMINT: 'MEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.FLOAT: 'FLOAT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.INT: 'INT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UINT256: 'UINT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NAME: 'NAME'>, <Type.UBIGINT: 'UBIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.MONEY: 'MONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UINT128: 'UINT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.BIGINT: 'BIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.DECIMAL32: 'DECIMAL32'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.DOUBLE: 'DOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.INT256: 'INT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.DECIMAL: 'DECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.USMALLINT: 'USMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.DECIMAL256: 'DECIMAL256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.DECIMAL64: 'DECIMAL64'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.DECIMAL128: 'DECIMAL128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.SMALLINT: 'SMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UTINYINT: 'UTINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.TINYINT: 'TINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.SMALLMONEY: 'SMALLMONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UDOUBLE: 'UDOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UDECIMAL: 'UDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.BIT: 'BIT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.INT128: 'INT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UINT: 'UINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.MEDIUMINT: 'MEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.FLOAT: 'FLOAT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.INT: 'INT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UINT256: 'UINT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.NVARCHAR: 'NVARCHAR'>, <Type.UBIGINT: 'UBIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.MONEY: 'MONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UINT128: 'UINT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.BIGINT: 'BIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.DECIMAL32: 'DECIMAL32'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.DOUBLE: 'DOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.INT256: 'INT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.DECIMAL: 'DECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.USMALLINT: 'USMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.DECIMAL256: 'DECIMAL256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.DECIMAL64: 'DECIMAL64'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.DECIMAL128: 'DECIMAL128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.SMALLINT: 'SMALLINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UTINYINT: 'UTINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.TINYINT: 'TINYINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.SMALLMONEY: 'SMALLMONEY'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UDOUBLE: 'UDOUBLE'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UDECIMAL: 'UDECIMAL'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.BIT: 'BIT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.INT128: 'INT128'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UINT: 'UINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.MEDIUMINT: 'MEDIUMINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.FLOAT: 'FLOAT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.INT: 'INT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UINT256: 'UINT256'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.VARCHAR: 'VARCHAR'>, <Type.UBIGINT: 'UBIGINT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MONEY: 'MONEY'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT128: 'UINT128'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGINT: 'BIGINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL32: 'DECIMAL32'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DOUBLE: 'DOUBLE'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT256: 'INT256'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL: 'DECIMAL'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.USMALLINT: 'USMALLINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL256: 'DECIMAL256'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL64: 'DECIMAL64'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL128: 'DECIMAL128'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLINT: 'SMALLINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UTINYINT: 'UTINYINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TINYINT: 'TINYINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLMONEY: 'SMALLMONEY'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDOUBLE: 'UDOUBLE'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDECIMAL: 'UDECIMAL'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIT: 'BIT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT128: 'INT128'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT: 'UINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.FLOAT: 'FLOAT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT: 'INT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT256: 'UINT256'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UBIGINT: 'UBIGINT'>, <Type.CHAR: 'CHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MONEY: 'MONEY'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT128: 'UINT128'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGINT: 'BIGINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL32: 'DECIMAL32'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DOUBLE: 'DOUBLE'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT256: 'INT256'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL: 'DECIMAL'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.USMALLINT: 'USMALLINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL256: 'DECIMAL256'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL64: 'DECIMAL64'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL128: 'DECIMAL128'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLINT: 'SMALLINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UTINYINT: 'UTINYINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TINYINT: 'TINYINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLMONEY: 'SMALLMONEY'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDOUBLE: 'UDOUBLE'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDECIMAL: 'UDECIMAL'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIT: 'BIT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT128: 'INT128'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT: 'UINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.FLOAT: 'FLOAT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT: 'INT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT256: 'UINT256'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UBIGINT: 'UBIGINT'>, <Type.TEXT: 'TEXT'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MONEY: 'MONEY'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT128: 'UINT128'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGINT: 'BIGINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL32: 'DECIMAL32'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DOUBLE: 'DOUBLE'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT256: 'INT256'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL: 'DECIMAL'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.USMALLINT: 'USMALLINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL256: 'DECIMAL256'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL64: 'DECIMAL64'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL128: 'DECIMAL128'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLINT: 'SMALLINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UTINYINT: 'UTINYINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TINYINT: 'TINYINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLMONEY: 'SMALLMONEY'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDOUBLE: 'UDOUBLE'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDECIMAL: 'UDECIMAL'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIT: 'BIT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT128: 'INT128'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT: 'UINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.FLOAT: 'FLOAT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT: 'INT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT256: 'UINT256'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UBIGINT: 'UBIGINT'>, <Type.NCHAR: 'NCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MONEY: 'MONEY'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT128: 'UINT128'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGINT: 'BIGINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL32: 'DECIMAL32'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DOUBLE: 'DOUBLE'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT256: 'INT256'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL: 'DECIMAL'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.USMALLINT: 'USMALLINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL256: 'DECIMAL256'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL64: 'DECIMAL64'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL128: 'DECIMAL128'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLINT: 'SMALLINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UTINYINT: 'UTINYINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TINYINT: 'TINYINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLMONEY: 'SMALLMONEY'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDOUBLE: 'UDOUBLE'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDECIMAL: 'UDECIMAL'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIT: 'BIT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT128: 'INT128'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT: 'UINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.FLOAT: 'FLOAT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT: 'INT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT256: 'UINT256'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UBIGINT: 'UBIGINT'>, <Type.NAME: 'NAME'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MONEY: 'MONEY'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT128: 'UINT128'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGINT: 'BIGINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL32: 'DECIMAL32'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DOUBLE: 'DOUBLE'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT256: 'INT256'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL: 'DECIMAL'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.USMALLINT: 'USMALLINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL256: 'DECIMAL256'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL64: 'DECIMAL64'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL128: 'DECIMAL128'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLINT: 'SMALLINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UTINYINT: 'UTINYINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TINYINT: 'TINYINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLMONEY: 'SMALLMONEY'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDOUBLE: 'UDOUBLE'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDECIMAL: 'UDECIMAL'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIT: 'BIT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT128: 'INT128'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT: 'UINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.FLOAT: 'FLOAT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT: 'INT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT256: 'UINT256'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UBIGINT: 'UBIGINT'>, <Type.NVARCHAR: 'NVARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MONEY: 'MONEY'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT128: 'UINT128'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGINT: 'BIGINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL32: 'DECIMAL32'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DOUBLE: 'DOUBLE'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT256: 'INT256'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL: 'DECIMAL'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.USMALLINT: 'USMALLINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL256: 'DECIMAL256'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL64: 'DECIMAL64'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DECIMAL128: 'DECIMAL128'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLINT: 'SMALLINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UTINYINT: 'UTINYINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.TINYINT: 'TINYINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.SMALLMONEY: 'SMALLMONEY'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDOUBLE: 'UDOUBLE'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UDECIMAL: 'UDECIMAL'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.BIT: 'BIT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT128: 'INT128'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT: 'UINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.FLOAT: 'FLOAT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.INT: 'INT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UINT256: 'UINT256'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.UBIGINT: 'UBIGINT'>, <Type.VARCHAR: 'VARCHAR'>): <function TypeAnnotator.<dictcomp>.<lambda>>, (<Type.DATE: 'DATE'>, <Type.INTERVAL: 'INTERVAL'>): <function TypeAnnotator.<lambda>>, (<Type.INTERVAL: 'INTERVAL'>, <Type.DATE: 'DATE'>): <function TypeAnnotator.<lambda>>}
schema
annotators
coerces_to
binary_coercions
def annotate(self, expression: ~E) -> ~E: View Source

    207    def annotate(self, expression: E) -> E:
    208        for scope in traverse_scope(expression):
    209            self.annotate_scope(scope)
    210        return self._maybe_annotate(expression)  # This takes care of non-traversable expressions

def annotate_scope(self, scope: sqlglot.optimizer.scope.Scope) -> None: View Source

    212    def annotate_scope(self, scope: Scope) -> None:
    213        selects = {}
    214        for name, source in scope.sources.items():
    215            if not isinstance(source, Scope):
    216                continue
    217
    218            expression = source.expression
    219            if isinstance(expression, exp.UDTF):
    220                values = []
    221
    222                if isinstance(expression, exp.Lateral):
    223                    if isinstance(expression.this, exp.Explode):
    224                        values = [expression.this.this]
    225                elif isinstance(expression, exp.Unnest):
    226                    values = [expression]
    227                else:
    228                    values = expression.expressions[0].expressions
    229
    230                if not values:
    231                    continue
    232
    233                selects[name] = {
    234                    alias: column.type
    235                    for alias, column in zip(expression.alias_column_names, values)
    236                }
    237            elif isinstance(expression, exp.SetOperation) and len(expression.left.selects) == len(
    238                expression.right.selects
    239            ):
    240                selects[name] = col_types = self._setop_column_types.setdefault(id(expression), {})
    241
    242                if not col_types:
    243                    # Process a chain / sub-tree of set operations
    244                    for set_op in expression.walk(
    245                        prune=lambda n: not isinstance(n, (exp.SetOperation, exp.Subquery))
    246                    ):
    247                        if not isinstance(set_op, exp.SetOperation):
    248                            continue
    249
    250                        if set_op.args.get("by_name"):
    251                            r_type_by_select = {
    252                                s.alias_or_name: s.type for s in set_op.right.selects
    253                            }
    254                            setop_cols = {
    255                                s.alias_or_name: self._maybe_coerce(
    256                                    t.cast(exp.DataType, s.type),
    257                                    r_type_by_select.get(s.alias_or_name)
    258                                    or exp.DataType.Type.UNKNOWN,
    259                                )
    260                                for s in set_op.left.selects
    261                            }
    262                        else:
    263                            setop_cols = {
    264                                ls.alias_or_name: self._maybe_coerce(
    265                                    t.cast(exp.DataType, ls.type), t.cast(exp.DataType, rs.type)
    266                                )
    267                                for ls, rs in zip(set_op.left.selects, set_op.right.selects)
    268                            }
    269
    270                        # Coerce intermediate results with the previously registered types, if they exist
    271                        for col_name, col_type in setop_cols.items():
    272                            col_types[col_name] = self._maybe_coerce(
    273                                col_type, col_types.get(col_name, exp.DataType.Type.NULL)
    274                            )
    275
    276            else:
    277                selects[name] = {s.alias_or_name: s.type for s in expression.selects}
    278
    279        # First annotate the current scope's column references
    280        for col in scope.columns:
    281            if not col.table:
    282                continue
    283
    284            source = scope.sources.get(col.table)
    285            if isinstance(source, exp.Table):
    286                self._set_type(col, self.schema.get_column_type(source, col))
    287            elif source:
    288                if col.table in selects and col.name in selects[col.table]:
    289                    self._set_type(col, selects[col.table][col.name])
    290                elif isinstance(source.expression, exp.Unnest):
    291                    self._set_type(col, source.expression.type)
    292
    293        # Then (possibly) annotate the remaining expressions in the scope
    294        self._maybe_annotate(scope.expression)