- update to 1.4.13:
orm
* Fixed regression in selectinload loader strategy that would
cause it to cache its internal state incorrectly when handling
relationships that join across more than one column, such as
when using a composite foreign key. The invalid caching would
then cause other unrelated loader operations to fail.
References: #6410
* Fixed regression where Query.filter_by() would not work if the
lead entity were a SQL function or other expression derived
from the primary entity in question, rather than a simple
entity or column of that entity. Additionally, improved the
behavior of Select.filter_by() overall to work with column
expressions even in a non-ORM context. References: #6414
* Fixed regression where using selectinload() and subqueryload()
to load a two-level-deep path would lead to an attribute error.
References: #6419
* Fixed regression where using the noload() loader strategy in
conjunction with a “dynamic” relationship would lead to an
attribute error as the noload strategy would attempt to apply
itself to the dynamic loader. References: #6420
engine
* Restored a legacy transactional behavior that was inadvertently
removed from the Connection as it was never tested as a known
use case in previous versions, where calling upon the
Connection.begin_nested() method, when no transaction is
present, does not create a SAVEPOINT at all and instead starts
an outer transaction, returning a RootTransaction object
instead of a NestedTransaction object. This RootTransaction
then will emit a real COMMIT on the database connection when
OBS-URL: https://build.opensuse.org/request/show/890304
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-SQLAlchemy?expand=0&rev=188
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