.. changelog::
:version: 2.0.50
- :include_notes_from: unreleased_20
+ :released: May 24, 2026
+
+ .. change::
+ :tags: bug, sql
+ :tickets: 10528
+
+ Fixed issue where floor division (``//``) between a :class:`.Float` or
+ :class:`.Numeric` numerator and an :class:`.Integer` denominator would omit
+ the ``FLOOR()`` SQL wrapper on dialects where
+ :attr:`.Dialect.div_is_floordiv` is ``True`` (the default, including
+ PostgreSQL and SQLite). ``FLOOR()`` is now applied if either the
+ denominator or the numerator is a non-integer, so that expressions such as
+ ``float_col // int_col`` render as ``FLOOR(float_col / int_col)`` instead
+ of the incorrect ``float_col / int_col``. Pull request courtesy r266-tech.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 13203
+
+ Fixed issue where using :func:`_orm.joinedload` with
+ :meth:`.PropComparator.of_type` targeting a joined-table subclass combined
+ with :meth:`.PropComparator.and_` referencing a column on that subclass
+ would generate invalid SQL, where the subclass column was not adapted to
+ the subquery alias. Pull request courtesy Joaquin Hui Gomez.
+
+ .. change::
+ :tags: postgresql, bug
+ :tickets: 13229
+
+ Improve handling of two phase transaction identifiers for PostgreSQL
+ when the identifier is provided by the user.
+ As part of this change the psycopg dialect was updated to use the DBAPI
+ two phase transaction API instead of executing the SQL directly.
+
+ .. change::
+ :tags: bug, sqlite
+ :tickets: 13230
+
+ Escape key and pragma values when utilizing the pysqlcipher dialect.
+
+ .. change::
+ :tags: bug, postgresql
+ :tickets: 13241
+
+ Fixed issue where the asyncpg driver could throw an insufficiently-handled
+ exception ``InternalClientError`` under some circumstances, leading to
+ connections not being properly marked as invalidated.
+
+
+
+ .. change::
+ :tags: bug, mysql, reflection
+ :tickets: 13243
+
+ Narrowed the scope of the internal workaround for MySQL bugs `#88718
+ <https://bugs.mysql.com/bug.php?id=88718>`_ and `#96365
+ <https://bugs.mysql.com/bug.php?id=96365>`_ so that it is only applied
+ where needed: MySQL 8.0.1 through 8.0.13 (where bug 88718 is present), and
+ on systems with ``lower_case_table_names=2`` (where bug 96365 applies,
+ typically macOS). Previously the workaround was applied unconditionally
+ for all MySQL 8.0+ versions, which caused a ``KeyError`` during foreign key
+ reflection when the database user lacked SELECT privileges on referred
+ tables.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 13301
+
+ Fixed issue where the presence of a :meth:`.SessionEvents.do_orm_execute`
+ event hook would cause internal execution options such as ``yield_per`` and
+ loader-specific state from the first ``orm_pre_session_exec`` pass to leak
+ into the second pass, leading to errors when using relationship loaders
+ such as :func:`.selectinload` and :func:`.immediateload`. The execution
+ options passed to the second compilation pass are now based on the original
+ options plus only the explicit updates made via
+ :meth:`.ORMExecuteState.update_execution_options` within the event hook.
+
+
+ .. change::
+ :tags: bug, mysql
+ :tickets: 13306
+
+ Fixed issue in aiomysql and asyncmy dialects that appears as of using
+ pymysql 1.2.0; the dialects were not properly taking into account logic
+ that detects the argument signature of pymysql's ``ping()`` method which
+ was added as part of :ticket:`10492`.
+
+
+
+
+ .. change::
+ :tags: bug, postgresql
+ :tickets: 13317
+
+ Fixed issue where the :class:`.ExcludeConstraint` construct did not
+ correctly forward the :paramref:`.ExcludeConstraint.info` parameter to
+ the superclass, causing user-defined metadata to be lost. Pull request
+ courtesy Wiktor Byrka.
+
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 13319
+
+ Fixed issue where using :func:`_orm.with_polymorphic` on a leaf class (a
+ subclass with no further descendants) or a non-inherited class would fail
+ with an ``AttributeError`` when used in an ORM statement, due to
+ :func:`_orm.configure_mappers` not being triggered implicitly. The fix
+ ensures that :class:`.AliasedInsp` participates in the ``_post_inspect``
+ hook, triggering mapper configuration during ORM statement compilation.
+
.. changelog::
:version: 2.0.49
+++ /dev/null
-.. change::
- :tags: bug, mysql, reflection
- :tickets: 13243
-
- Narrowed the scope of the internal workaround for MySQL bugs `#88718
- <https://bugs.mysql.com/bug.php?id=88718>`_ and `#96365
- <https://bugs.mysql.com/bug.php?id=96365>`_ so that it is only applied
- where needed: MySQL 8.0.1 through 8.0.13 (where bug 88718 is present), and
- on systems with ``lower_case_table_names=2`` (where bug 96365 applies,
- typically macOS). Previously the workaround was applied unconditionally
- for all MySQL 8.0+ versions, which caused a ``KeyError`` during foreign key
- reflection when the database user lacked SELECT privileges on referred
- tables.
projects / thirdparty / sqlalchemy / sqlalchemy.git / commitdiff
