1# sql/expression.py
2# Copyright (C) 2005-2025 the SQLAlchemy authors and contributors
3# <see AUTHORS file>
4#
5# This module is part of SQLAlchemy and is released under
6# the MIT License: https://www.opensource.org/licenses/mit-license.php
7
8"""Defines the public namespace for SQL expression constructs."""
9
10
11from __future__ import annotations
12
13from ._dml_constructors import delete as delete
14from ._dml_constructors import insert as insert
15from ._dml_constructors import update as update
16from ._elements_constructors import aggregate_order_by as aggregate_order_by
17from ._elements_constructors import all_ as all_
18from ._elements_constructors import and_ as and_
19from ._elements_constructors import any_ as any_
20from ._elements_constructors import asc as asc
21from ._elements_constructors import between as between
22from ._elements_constructors import bindparam as bindparam
23from ._elements_constructors import bitwise_not as bitwise_not
24from ._elements_constructors import case as case
25from ._elements_constructors import cast as cast
26from ._elements_constructors import collate as collate
27from ._elements_constructors import column as column
28from ._elements_constructors import desc as desc
29from ._elements_constructors import distinct as distinct
30from ._elements_constructors import extract as extract
31from ._elements_constructors import false as false
32from ._elements_constructors import from_dml_column as from_dml_column
33from ._elements_constructors import funcfilter as funcfilter
34from ._elements_constructors import label as label
35from ._elements_constructors import not_ as not_
36from ._elements_constructors import null as null
37from ._elements_constructors import nulls_first as nulls_first
38from ._elements_constructors import nulls_last as nulls_last
39from ._elements_constructors import or_ as or_
40from ._elements_constructors import outparam as outparam
41from ._elements_constructors import over as over
42from ._elements_constructors import text as text
43from ._elements_constructors import true as true
44from ._elements_constructors import try_cast as try_cast
45from ._elements_constructors import tuple_ as tuple_
46from ._elements_constructors import type_coerce as type_coerce
47from ._elements_constructors import within_group as within_group
48from ._selectable_constructors import alias as alias
49from ._selectable_constructors import cte as cte
50from ._selectable_constructors import except_ as except_
51from ._selectable_constructors import except_all as except_all
52from ._selectable_constructors import exists as exists
53from ._selectable_constructors import intersect as intersect
54from ._selectable_constructors import intersect_all as intersect_all
55from ._selectable_constructors import join as join
56from ._selectable_constructors import lateral as lateral
57from ._selectable_constructors import outerjoin as outerjoin
58from ._selectable_constructors import select as select
59from ._selectable_constructors import table as table
60from ._selectable_constructors import tablesample as tablesample
61from ._selectable_constructors import union as union
62from ._selectable_constructors import union_all as union_all
63from ._selectable_constructors import values as values
64from ._typing import ColumnExpressionArgument as ColumnExpressionArgument
65from .base import _from_objects as _from_objects
66from .base import _select_iterables as _select_iterables
67from .base import ColumnCollection as ColumnCollection
68from .base import Executable as Executable
69from .cache_key import CacheKey as CacheKey
70from .dml import Delete as Delete
71from .dml import Insert as Insert
72from .dml import Update as Update
73from .dml import UpdateBase as UpdateBase
74from .dml import ValuesBase as ValuesBase
75from .elements import _truncated_label as _truncated_label
76from .elements import AggregateOrderBy as AggregateOrderBy
77from .elements import BinaryExpression as BinaryExpression
78from .elements import BindParameter as BindParameter
79from .elements import BooleanClauseList as BooleanClauseList
80from .elements import Case as Case
81from .elements import Cast as Cast
82from .elements import ClauseElement as ClauseElement
83from .elements import ClauseList as ClauseList
84from .elements import CollectionAggregate as CollectionAggregate
85from .elements import ColumnClause as ColumnClause
86from .elements import ColumnElement as ColumnElement
87from .elements import DMLTargetCopy as DMLTargetCopy
88from .elements import ExpressionClauseList as ExpressionClauseList
89from .elements import Extract as Extract
90from .elements import False_ as False_
91from .elements import FunctionFilter as FunctionFilter
92from .elements import Grouping as Grouping
93from .elements import Label as Label
94from .elements import literal as literal
95from .elements import literal_column as literal_column
96from .elements import Null as Null
97from .elements import OrderByList as OrderByList
98from .elements import Over as Over
99from .elements import quoted_name as quoted_name
100from .elements import ReleaseSavepointClause as ReleaseSavepointClause
101from .elements import RollbackToSavepointClause as RollbackToSavepointClause
102from .elements import SavepointClause as SavepointClause
103from .elements import SQLColumnExpression as SQLColumnExpression
104from .elements import TextClause as TextClause
105from .elements import True_ as True_
106from .elements import TryCast as TryCast
107from .elements import Tuple as Tuple
108from .elements import TypeClause as TypeClause
109from .elements import TypeCoerce as TypeCoerce
110from .elements import UnaryExpression as UnaryExpression
111from .elements import WithinGroup as WithinGroup
112from .functions import func as func
113from .functions import Function as Function
114from .functions import FunctionElement as FunctionElement
115from .functions import modifier as modifier
116from .lambdas import lambda_stmt as lambda_stmt
117from .lambdas import LambdaElement as LambdaElement
118from .lambdas import StatementLambdaElement as StatementLambdaElement
119from .operators import ColumnOperators as ColumnOperators
120from .operators import custom_op as custom_op
121from .operators import OperatorClass as OperatorClass
122from .operators import Operators as Operators
123from .selectable import Alias as Alias
124from .selectable import AliasedReturnsRows as AliasedReturnsRows
125from .selectable import CompoundSelect as CompoundSelect
126from .selectable import CTE as CTE
127from .selectable import Exists as Exists
128from .selectable import FromClause as FromClause
129from .selectable import FromGrouping as FromGrouping
130from .selectable import GenerativeSelect as GenerativeSelect
131from .selectable import HasCTE as HasCTE
132from .selectable import HasPrefixes as HasPrefixes
133from .selectable import HasSuffixes as HasSuffixes
134from .selectable import Join as Join
135from .selectable import LABEL_STYLE_DEFAULT as LABEL_STYLE_DEFAULT
136from .selectable import (
137 LABEL_STYLE_DISAMBIGUATE_ONLY as LABEL_STYLE_DISAMBIGUATE_ONLY,
138)
139from .selectable import LABEL_STYLE_NONE as LABEL_STYLE_NONE
140from .selectable import (
141 LABEL_STYLE_TABLENAME_PLUS_COL as LABEL_STYLE_TABLENAME_PLUS_COL,
142)
143from .selectable import Lateral as Lateral
144from .selectable import ReturnsRows as ReturnsRows
145from .selectable import ScalarSelect as ScalarSelect
146from .selectable import ScalarValues as ScalarValues
147from .selectable import Select as Select
148from .selectable import Selectable as Selectable
149from .selectable import SelectBase as SelectBase
150from .selectable import SelectLabelStyle as SelectLabelStyle
151from .selectable import Subquery as Subquery
152from .selectable import TableClause as TableClause
153from .selectable import TableSample as TableSample
154from .selectable import TableValuedAlias as TableValuedAlias
155from .selectable import TextAsFrom as TextAsFrom
156from .selectable import TextualSelect as TextualSelect
157from .selectable import Values as Values
158from .visitors import Visitable as Visitable
159
160nullsfirst = nulls_first
161"""Synonym for the :func:`.nulls_first` function."""
162
163
164nullslast = nulls_last
165"""Synonym for the :func:`.nulls_last` function."""