Bump sqlalchemy from 1.3.23 to 1.4.4

[dependabot-preview[bot]]

Bumps sqlalchemy from 1.3.23 to 1.4.4.

Release notes

Sourced from sqlalchemy's releases.

1.4.4

Released: March 30, 2021

orm

• [orm] [bug] Fixed critical issue in the new _orm.PropComparator.and_() feature where loader strategies that emit secondary SELECT statements such as _orm.selectinload() and _orm.lazyload() would fail to accommodate for bound parameters in the user-defined criteria in terms of the current statement being executed, as opposed to the cached statement, causing stale bound values to be used.

  This also adds a warning for the case where an object that uses _orm.lazyload() in conjunction with _orm.PropComparator.and_() is attempted to be serialized; the loader criteria cannot reliably be serialized and deserialized and eager loading should be used for this case.

  References: #6139

• [orm] [bug] [regression] Fixed missing method _orm.Session.get() from the _orm.ScopedSession interface.

  References: #6144

engine

• [engine] [usecase] Modified the context manager used by _engine.Transaction so that an "already detached" warning is not emitted by the ending of the context manager itself, if the transaction were already manually rolled back inside the block. This applies to regular transactions, savepoint transactions, and legacy "marker" transactions. A warning is still emitted if the .rollback() method is called explicitly more than once.

  References: #6155

• [engine] [bug] Repair wrong arguments to exception handling method in CursorResult.

  References: #6138

postgresql

• [postgresql] [bug] [reflection] Fixed issue in PostgreSQL reflection where a column expressing "NOT NULL" will supersede the nullability of a corresponding domain.

... (truncated)

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[dependabot-preview[bot]]

Superseded by #114.