diff options
Diffstat (limited to 'lib/sqlalchemy/sql/util.py')
| -rw-r--r-- | lib/sqlalchemy/sql/util.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/util.py b/lib/sqlalchemy/sql/util.py index 5114a2431..cdce49f7b 100644 --- a/lib/sqlalchemy/sql/util.py +++ b/lib/sqlalchemy/sql/util.py @@ -15,6 +15,7 @@ from itertools import chain import typing from typing import Any from typing import cast +from typing import Iterator from typing import Optional from . import coercions @@ -33,6 +34,7 @@ from .elements import _find_columns # noqa from .elements import _label_reference from .elements import _textual_label_reference from .elements import BindParameter +from .elements import ClauseElement # noqa from .elements import ColumnClause from .elements import ColumnElement from .elements import Grouping @@ -51,6 +53,7 @@ from .. import exc from .. import util if typing.TYPE_CHECKING: + from .roles import FromClauseRole from ..engine.interfaces import _AnyExecuteParams from ..engine.interfaces import _AnyMultiExecuteParams from ..engine.interfaces import _AnySingleExecuteParams @@ -404,7 +407,7 @@ def clause_is_present(clause, search): return False -def tables_from_leftmost(clause): +def tables_from_leftmost(clause: FromClauseRole) -> Iterator[FromClause]: if isinstance(clause, Join): for t in tables_from_leftmost(clause.left): yield t |