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Bump sqlalchemy from 1.3.11 to 1.4.9 #310

Closed dependabot-preview[bot] closed 3 years ago

dependabot-preview[bot] commented 3 years ago

Bumps sqlalchemy from 1.3.11 to 1.4.9.

Release notes

Sourced from sqlalchemy's releases.

1.4.9

Released: April 17, 2021

orm

  • [orm] [usecase] Established support for _orm.synoynm() in conjunction with hybrid property, assocaitionproxy is set up completely, including that synonyms can be established linking to these constructs which work fully. This is a behavior that was semi-explicitly disallowed previously, however since it did not fail in every scenario, explicit support for assoc proxy and hybrids has been added.

    References: #6267

  • [orm] [performance] [bug] [regression] [sql] Fixed a critical performance issue where the traversal of a _sql.select() construct would traverse a repetitive product of the represented FROM clauses as they were each referred towards by columns in the columns clause; for a series of nested subqueries with lots of columns this could cause a large delay and significant memory growth. This traversal is used by a wide variety of SQL and ORM functions, including by the ORM _orm.Session when it's configured to have "table-per-bind", which while this is not a common use case, it seems to be what Flask-SQLAlchemy is hardcoded as using, so the issue impacts Flask-SQLAlchemy users. The traversal has been repaired to uniqify on FROM clauses which was effectively what would happen implicitly with the pre-1.4 architecture.

    References: #6304

  • [orm] [bug] [regression] Fixed regression where an attribute that is mapped to a _orm.synonym() could not be used in column loader options such as _orm.load_only().

    References: #6272

sql

  • [sql] [bug] [regression] Fixed regression where an empty in statement on a tuple would result in an error when compiled with the option literal_binds=True.

    References: #6290

postgresql

  • [postgresql] [bug] [regression] [sql] Fixed an argument error in the default and PostgreSQL compilers that would interfere with an UPDATE..FROM or DELETE..FROM..USING statement

... (truncated)

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dependabot-preview[bot] commented 3 years ago

Superseded by #311.