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- # dialects/_typing.py
- # Copyright (C) 2005-2025 the SQLAlchemy authors and contributors
- # <see AUTHORS file>
- #
- # This module is part of SQLAlchemy and is released under
- # the MIT License: https://www.opensource.org/licenses/mit-license.php
- from __future__ import annotations
- from typing import Any
- from typing import Iterable
- from typing import Mapping
- from typing import Optional
- from typing import Union
- from ..sql import roles
- from ..sql.base import ColumnCollection
- from ..sql.schema import Column
- from ..sql.schema import ColumnCollectionConstraint
- from ..sql.schema import Index
- _OnConflictConstraintT = Union[str, ColumnCollectionConstraint, Index, None]
- _OnConflictIndexElementsT = Optional[
- Iterable[Union[Column[Any], str, roles.DDLConstraintColumnRole]]
- ]
- _OnConflictIndexWhereT = Optional[roles.WhereHavingRole]
- _OnConflictSetT = Optional[
- Union[Mapping[Any, Any], ColumnCollection[Any, Any]]
- ]
- _OnConflictWhereT = Optional[roles.WhereHavingRole]
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