Bump sqlalchemy from 1.4.31 to 1.4.45

[dependabot[bot]]

Bumps sqlalchemy from 1.4.31 to 1.4.45.

Release notes

Sourced from sqlalchemy's releases.

1.4.45

Released: December 10, 2022

orm

• [orm] [bug] Fixed bug where _orm.Session.merge() would fail to preserve the current loaded contents of relationship attributes that were indicated with the _orm.relationship.viewonly parameter, thus defeating strategies that use _orm.Session.merge() to pull fully loaded objects from caches and other similar techniques. In a related change, fixed issue where an object that contains a loaded relationship that was nonetheless configured as lazy='raise' on the mapping would fail when passed to _orm.Session.merge(); checks for "raise" are now suspended within the merge process assuming the _orm.Session.merge.load parameter remains at its default of True.

  Overall, this is a behavioral adjustment to a change introduced in the 1.4 series as of #4994, which took "merge" out of the set of cascades applied by default to "viewonly" relationships. As "viewonly" relationships aren't persisted under any circumstances, allowing their contents to transfer during "merge" does not impact the persistence behavior of the target object. This allows _orm.Session.merge() to correctly suit one of its use cases, that of adding objects to a Session that were loaded elsewhere, often for the purposes of restoring from a cache.

  References: #8862

• [orm] [bug] Fixed issues in _orm.with_expression() where expressions that were composed of columns that were referenced from the enclosing SELECT would not render correct SQL in some contexts, in the case where the expression had a label name that matched the attribute which used _orm.query_expression(), even when _orm.query_expression() had no default expression. For the moment, if the _orm.query_expression() does have a default expression, that label name is still used for that default, and an additional label with the same name will continue to be ignored. Overall, this case is pretty thorny so further adjustments might be warranted.

  References: #8881

engine

• [engine] [bug] Fixed issue where _engine.Result.freeze() method would not work for textual SQL using either _sql.text() or _engine.Connection.exec_driver_sql().

  References: #8963

... (truncated)

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[dependabot[bot]]

Superseded by #170.