.. changelog::
:version: 2.0.13
- :include_notes_from: unreleased_20
+ :released: May 10, 2023
+
+ .. change::
+ :tags: usecase, asyncio
+ :tickets: 9731
+
+ Added a new helper mixin :class:`_asyncio.AsyncAttrs` that seeks to improve
+ the use of lazy-loader and other expired or deferred ORM attributes with
+ asyncio, providing a simple attribute accessor that provides an ``await``
+ interface to any ORM attribute, whether or not it needs to emit SQL.
+
+ .. seealso::
+
+ :class:`_asyncio.AsyncAttrs`
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 9717
+
+ Fixed issue where ORM Annotated Declarative would not resolve forward
+ references correctly in all cases; in particular, when using
+ ``from __future__ import annotations`` in combination with Pydantic
+ dataclasses.
+
+ .. change::
+ :tags: typing, sql
+ :tickets: 9656
+
+ Added type :data:`_sql.ColumnExpressionArgument` as a public-facing type
+ that indicates column-oriented arguments which are passed to SQLAlchemy
+ constructs, such as :meth:`_sql.Select.where`, :func:`_sql.and_` and
+ others. This may be used to add typing to end-user functions which call
+ these methods.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 9746
+
+ Fixed issue in new :ref:`orm_queryguide_upsert_returning` feature where the
+ ``populate_existing`` execution option was not being propagated to the
+ loading option, preventing existing attributes from being refreshed
+ in-place.
+
+ .. change::
+ :tags: bug, sql
+
+ Fixed the base class for dialect-specific float/double types; Oracle
+ :class:`_oracle.BINARY_DOUBLE` now subclasses :class:`_sqltypes.Double`,
+ and internal types for :class:`_sqltypes.Float` for asyncpg and pg8000 now
+ correctly subclass :class:`_sqltypes.Float`.
+
+ .. change::
+ :tags: bug, ext
+ :tickets: 9676
+
+ Fixed issue in :class:`_mutable.Mutable` where event registration for ORM
+ mapped attributes would be called repeatedly for mapped inheritance
+ subclasses, leading to duplicate events being invoked in inheritance
+ hierarchies.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 9715
+
+ Fixed loader strategy pathing issues where eager loaders such as
+ :func:`_orm.joinedload` / :func:`_orm.selectinload` would fail to traverse
+ fully for many-levels deep following a load that had a
+ :func:`_orm.with_polymorphic` or similar construct as an interim member.
+
+ .. change::
+ :tags: usecase, sql
+ :tickets: 9721
+
+ Implemented the "cartesian product warning" for UPDATE and DELETE
+ statements, those which include multiple tables that are not correlated
+ together in some way.
+
+ .. change::
+ :tags: bug, sql
+
+ Fixed issue where :func:`_dml.update` construct that included multiple
+ tables and no VALUES clause would raise with an internal error. Current
+ behavior for :class:`_dml.Update` with no values is to generate a SQL
+ UPDATE statement with an empty "set" clause, so this has been made
+ consistent for this specific sub-case.
+
+ .. change::
+ :tags: oracle, reflection
+ :tickets: 9597
+
+ Added reflection support in the Oracle dialect to expression based indexes
+ and the ordering direction of index expressions.
+
+ .. change::
+ :tags: performance, schema
+ :tickets: 9597
+
+ Improved how table columns are added, avoiding unnecessary allocations,
+ significantly speeding up the creation of many table, like when reflecting
+ entire schemas.
+
+ .. change::
+ :tags: bug, typing
+ :tickets: 9762
+
+ Fixed typing for the :paramref:`_orm.Session.get.with_for_update` parameter
+ of :meth:`_orm.Session.get` and :meth:`_orm.Session.refresh` (as well as
+ corresponding methods on :class:`_asyncio.AsyncSession`) to accept boolean
+ ``True`` and all other argument forms accepted by the parameter at runtime.
+
+ .. change::
+ :tags: bug, postgresql, regression
+ :tickets: 9739
+
+ Fixed another regression due to the "insertmanyvalues" change in 2.0.10 as
+ part of :ticket:`9618`, in a similar way as regression :ticket:`9701`, where
+ :class:`.LargeBinary` datatypes also need additional casts on when using the
+ asyncpg driver specifically in order to work with the new bulk INSERT
+ format.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 9630
+
+ Fixed issue in :func:`_orm.mapped_column` construct where the correct
+ warning for "column X named directly multiple times" would not be emitted
+ when ORM mapped attributes referred to the same :class:`_schema.Column`, if
+ the :func:`_orm.mapped_column` construct were involved, raising an internal
+ assertion instead.
+
+ .. change::
+ :tags: bug, asyncio
+
+ Fixed issue in semi-private ``await_only()`` and ``await_fallback()``
+ concurrency functions where the given awaitable would remain un-awaited if
+ the function threw a ``GreenletError``, which could cause "was not awaited"
+ warnings later on if the program continued. In this case, the given
+ awaitable is now cancelled before the exception is thrown.
.. changelog::
:version: 2.0.12
projects / thirdparty / sqlalchemy / sqlalchemy.git / commitdiff
