[orm] [bug] [regression] Fixed a cache leak involving the _orm.with_expression() loader
option, where the given SQL expression would not be correctly considered as
part of the cache key.
Additionally, fixed regression involving the corresponding
_orm.query_expression() feature. While the bug technically exists in
1.3 as well, it was not exposed until 1.4. The "default expr" value of
null() would be rendered when not needed, and additionally was also not
adapted correctly when the ORM rewrites statements such as when using
joined eager loading. The fix ensures "singleton" expressions like NULL
and true aren't "adapted" to refer to columns in ORM statements, and
additionally ensures that a _orm.query_expression() with no default
expression doesn't render in the statement if a
_orm.with_expression() isn't used.
[orm] [bug] Fixed issue in the new feature of _orm.Session.refresh() introduced
by #1763 where eagerly loaded relationships are also refreshed,
where the lazy="raise" and lazy="raise_on_sql" loader strategies
would interfere with the _orm.immediateload() loader strategy, thus
breaking the feature for relationships that were loaded with
_orm.selectinload(), _orm.subqueryload() as well.
[engine] [bug] The _engine.Dialect.has_table() method now raises an informative
exception if a non-Connection is passed to it, as this incorrect behavior
seems to be common. This method is not intended for external use outside
of a dialect. Please use the Inspector.has_table() method
or for cross-compatibility with older SQLAlchemy versions, the
_engine.Engine.has_table() method.
sql
[sql] [feature] The tuple returned by CursorResult.inserted_primary_key is now a
_result.Row object with a named tuple interface on top of the
existing tuple interface.
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Bumps sqlalchemy from 1.3.18 to 1.4.8.
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