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# sql/expression.py
# Copyright (C) 2005-2021 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
"""Defines the public namespace for SQL expression constructs.
Prior to version 0.9, this module contained all of "elements", "dml",
"default_comparator" and "selectable". The module was broken up
and most "factory" functions were moved to be grouped with their associated
class.
"""
__all__ = [
"Alias",
"any_",
"all_",
"ClauseElement",
"ColumnCollection",
"ColumnElement",
"CompoundSelect",
"Delete",
"FromClause",
"Insert",
"Join",
"Lateral",
"Select",
"Selectable",
"TableClause",
"Update",
"alias",
"and_",
"asc",
"between",
"bindparam",
"case",
"cast",
"column",
"cte",
"delete",
"desc",
"distinct",
"except_",
"except_all",
"exists",
"extract",
"func",
"modifier",
"collate",
"insert",
"intersect",
"intersect_all",
"join",
"label",
"lateral",
"literal",
"literal_column",
"not_",
"null",
"nullsfirst",
"nullslast",
"or_",
"outparam",
"outerjoin",
"over",
"select",
"subquery",
"table",
"text",
"tuple_",
"type_coerce",
"quoted_name",
"union",
"union_all",
"update",
"within_group",
"TableSample",
"tablesample",
]
from .base import _from_objects # noqa
from .base import ColumnCollection # noqa
from .base import Executable # noqa
from .base import Generative # noqa
from .base import PARSE_AUTOCOMMIT # noqa
from .dml import Delete # noqa
from .dml import Insert # noqa
from .dml import Update # noqa
from .dml import UpdateBase # noqa
from .dml import ValuesBase # noqa
from .elements import _clause_element_as_expr # noqa
from .elements import _clone # noqa
from .elements import _cloned_difference # noqa
from .elements import _cloned_intersection # noqa
from .elements import _column_as_key # noqa
from .elements import _corresponding_column_or_error # noqa
from .elements import _expression_literal_as_text # noqa
from .elements import _is_column # noqa
from .elements import _labeled # noqa
from .elements import _literal_as_binds # noqa
from .elements import _literal_as_column # noqa
from .elements import _literal_as_label_reference # noqa
from .elements import _literal_as_text # noqa
from .elements import _only_column_elements # noqa
from .elements import _select_iterables # noqa
from .elements import _string_or_unprintable # noqa
from .elements import _truncated_label # noqa
from .elements import between # noqa
from .elements import BinaryExpression # noqa
from .elements import BindParameter # noqa
from .elements import BooleanClauseList # noqa
from .elements import Case # noqa
from .elements import Cast # noqa
from .elements import ClauseElement # noqa
from .elements import ClauseList # noqa
from .elements import collate # noqa
from .elements import CollectionAggregate # noqa
from .elements import ColumnClause # noqa
from .elements import ColumnElement # noqa
from .elements import Extract # noqa
from .elements import False_ # noqa
from .elements import FunctionFilter # noqa
from .elements import Grouping # noqa
from .elements import Label # noqa
from .elements import literal # noqa
from .elements import literal_column # noqa
from .elements import not_ # noqa
from .elements import Null # noqa
from .elements import outparam # noqa
from .elements import Over # noqa
from .elements import quoted_name # noqa
from .elements import ReleaseSavepointClause # noqa
from .elements import RollbackToSavepointClause # noqa
from .elements import SavepointClause # noqa
from .elements import TextClause # noqa
from .elements import True_ # noqa
from .elements import Tuple # noqa
from .elements import TypeClause # noqa
from .elements import TypeCoerce # noqa
from .elements import UnaryExpression # noqa
from .elements import WithinGroup # noqa
from .functions import func # noqa
from .functions import Function # noqa
from .functions import FunctionElement # noqa
from .functions import modifier # noqa
from .selectable import _interpret_as_from # noqa
from .selectable import Alias # noqa
from .selectable import CompoundSelect # noqa
from .selectable import CTE # noqa
from .selectable import Exists # noqa
from .selectable import FromClause # noqa
from .selectable import FromGrouping # noqa
from .selectable import GenerativeSelect # noqa
from .selectable import HasCTE # noqa
from .selectable import HasPrefixes # noqa
from .selectable import HasSuffixes # noqa
from .selectable import Join # noqa
from .selectable import Lateral # noqa
from .selectable import ScalarSelect # noqa
from .selectable import Select # noqa
from .selectable import Selectable # noqa
from .selectable import SelectBase # noqa
from .selectable import subquery # noqa
from .selectable import TableClause # noqa
from .selectable import TableSample # noqa
from .selectable import TextAsFrom # noqa
from .visitors import Visitable # noqa
from ..util.langhelpers import public_factory # noqa
# factory functions - these pull class-bound constructors and classmethods
# from SQL elements and selectables into public functions. This allows
# the functions to be available in the sqlalchemy.sql.* namespace and
# to be auto-cross-documenting from the function to the class itself.
all_ = public_factory(CollectionAggregate._create_all, ".sql.expression.all_")
any_ = public_factory(CollectionAggregate._create_any, ".sql.expression.any_")
and_ = public_factory(BooleanClauseList.and_, ".sql.expression.and_")
alias = public_factory(Alias._factory, ".sql.expression.alias")
tablesample = public_factory(
TableSample._factory, ".sql.expression.tablesample"
)
lateral = public_factory(Lateral._factory, ".sql.expression.lateral")
or_ = public_factory(BooleanClauseList.or_, ".sql.expression.or_")
bindparam = public_factory(BindParameter, ".sql.expression.bindparam")
select = public_factory(Select, ".sql.expression.select")
text = public_factory(TextClause._create_text, ".sql.expression.text")
table = public_factory(TableClause, ".sql.expression.table")
column = public_factory(ColumnClause, ".sql.expression.column")
over = public_factory(Over, ".sql.expression.over")
within_group = public_factory(WithinGroup, ".sql.expression.within_group")
label = public_factory(Label, ".sql.expression.label")
case = public_factory(Case, ".sql.expression.case")
cast = public_factory(Cast, ".sql.expression.cast")
cte = public_factory(CTE._factory, ".sql.expression.cte")
extract = public_factory(Extract, ".sql.expression.extract")
tuple_ = public_factory(Tuple, ".sql.expression.tuple_")
except_ = public_factory(
CompoundSelect._create_except, ".sql.expression.except_"
)
except_all = public_factory(
CompoundSelect._create_except_all, ".sql.expression.except_all"
)
intersect = public_factory(
CompoundSelect._create_intersect, ".sql.expression.intersect"
)
intersect_all = public_factory(
CompoundSelect._create_intersect_all, ".sql.expression.intersect_all"
)
union = public_factory(CompoundSelect._create_union, ".sql.expression.union")
union_all = public_factory(
CompoundSelect._create_union_all, ".sql.expression.union_all"
)
exists = public_factory(Exists, ".sql.expression.exists")
nullsfirst = public_factory(
UnaryExpression._create_nullsfirst, ".sql.expression.nullsfirst"
)
nullslast = public_factory(
UnaryExpression._create_nullslast, ".sql.expression.nullslast"
)
asc = public_factory(UnaryExpression._create_asc, ".sql.expression.asc")
desc = public_factory(UnaryExpression._create_desc, ".sql.expression.desc")
distinct = public_factory(
UnaryExpression._create_distinct, ".sql.expression.distinct"
)
type_coerce = public_factory(TypeCoerce, ".sql.expression.type_coerce")
true = public_factory(True_._instance, ".sql.expression.true")
false = public_factory(False_._instance, ".sql.expression.false")
null = public_factory(Null._instance, ".sql.expression.null")
join = public_factory(Join._create_join, ".sql.expression.join")
outerjoin = public_factory(Join._create_outerjoin, ".sql.expression.outerjoin")
insert = public_factory(Insert, ".sql.expression.insert")
update = public_factory(Update, ".sql.expression.update")
delete = public_factory(Delete, ".sql.expression.delete")
funcfilter = public_factory(FunctionFilter, ".sql.expression.funcfilter")
# internal functions still being called from tests and the ORM,
# these might be better off in some other namespace
# old names for compatibility
_Executable = Executable
_BindParamClause = BindParameter
_Label = Label
_SelectBase = SelectBase
_BinaryExpression = BinaryExpression
_Cast = Cast
_Null = Null
_False = False_
_True = True_
_TextClause = TextClause
_UnaryExpression = UnaryExpression
_Case = Case
_Tuple = Tuple
_Over = Over
_Generative = Generative
_TypeClause = TypeClause
_Extract = Extract
_Exists = Exists
_Grouping = Grouping
_FromGrouping = FromGrouping
_ScalarSelect = ScalarSelect
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