.. changelog::
:version: 1.4.29
- :include_notes_from: unreleased_14
+ :released: December 22, 2021
+
+ .. change::
+ :tags: usecase, asyncio
+ :tickets: 7301
+
+ Added :func:`_asyncio.async_engine_config` function to create
+ an async engine from a configuration dict. This otherwise
+ behaves the same as :func:`_sa.engine_from_config`.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 7489
+
+ Fixed issue in new "loader criteria" method
+ :meth:`_orm.PropComparator.and_` where usage with a loader strategy like
+ :func:`_orm.selectinload` against a column that was a member of the ``.c.``
+ collection of a subquery object, where the subquery would be dynamically
+ added to the FROM clause of the statement, would be subject to stale
+ parameter values within the subquery in the SQL statement cache, as the
+ process used by the loader strategy to replace the parameters at execution
+ time would fail to accommodate the subquery when received in this form.
+
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 7491
+
+ Fixed recursion overflow which could occur within ORM statement compilation
+ when using either the :func:`_orm.with_loader_criteria` feature or the the
+ :meth:`_orm.PropComparator.and_` method within a loader strategy in
+ conjunction with a subquery which referred to the same entity being altered
+ by the criteria option, or loaded by the loader strategy. A check for
+ coming across the same loader criteria option in a recursive fashion has
+ been added to accommodate for this scenario.
+
+
+ .. change::
+ :tags: bug, orm, mypy
+ :tickets: 7462, 7368
+
+ Fixed issue where the ``__class_getitem__()`` method of the generated
+ declarative base class by :func:`_orm.as_declarative` would lead to
+ inaccessible class attributes such as ``__table__``, for cases where a
+ ``Generic[T]`` style typing declaration were used in the class hierarchy.
+ This is in continuation from the basic addition of ``__class_getitem__()``
+ in :ticket:`7368`. Pull request courtesy Kai Mueller.
+
+ .. change::
+ :tags: bug, mypy
+ :tickets: 7496
+
+ Fixed mypy regression where the release of mypy 0.930 added additional
+ internal checks to the format of "named types", requiring that they be
+ fully qualified and locatable. This broke the mypy plugin for SQLAlchemy,
+ raising an assertion error, as there was use of symbols such as
+ ``__builtins__`` and other un-locatable or unqualified names that
+ previously had not raised any assertions.
+
+
+ .. change::
+ :tags: bug, engine
+ :tickets: 7432
+
+ Corrected the error message for the ``AttributeError`` that's raised when
+ attempting to write to an attribute on the :class:`_result.Row` class,
+ which is immutable. The previous message claimed the column didn't exist
+ which is misleading.
+
+ .. change::
+ :tags: bug, mariadb
+ :tickets: 7457
+
+ Corrected the error classes inspected for the "is_disconnect" check for the
+ ``mariadbconnector`` dialect, which was failing for disconnects that
+ occurred due to common MySQL/MariaDB error codes such as 2006; the DBAPI
+ appears to currently use the ``mariadb.InterfaceError`` exception class for
+ disconnect errors such as error code 2006, which has been added to the list
+ of classes checked.
+
+
+ .. change::
+ :tags: bug, orm, regression
+ :tickets: 7447
+
+ Fixed caching-related issue where the use of a loader option of the form
+ ``lazyload(aliased(A).bs).joinedload(B.cs)`` would fail to result in the
+ joinedload being invoked for runs subsequent to the query being cached, due
+ to a mismatch for the options / object path applied to the objects loaded
+ for a query with a lead entity that used ``aliased()``.
+
+
+ .. change::
+ :tags: bug, tests, regression
+ :tickets: 7450
+
+ Fixed a regression in the test suite where the test called
+ ``CompareAndCopyTest::test_all_present`` would fail on some platforms due
+ to additional testing artifacts being detected. Pull request courtesy Nils
+ Philippsen.
+
+
+ .. change::
+ :tags: usecase, orm
+ :tickets: 7410
+
+ Added :paramref:`_orm.Session.get.execution_options` parameter which was
+ previously missing from the :meth:`_orm.Session.get` method.
+
+ .. change::
+ :tags: bug, engine, regression
+ :tickets: 7446
+
+ Fixed regression in the :func:`_engine.make_url` function used to parse URL
+ strings where the query string parsing would go into a recursion overflow
+ if a Python 2 ``u''`` string were used.
.. changelog::
:version: 1.4.28
projects / thirdparty / sqlalchemy / sqlalchemy.git / commitdiff
