]> git.ipfire.org Git - thirdparty/sqlalchemy/sqlalchemy.git/commit
Add doc note for multiple table mapping
authorMike Bayer <mike_mp@zzzcomputing.com>
Wed, 23 Oct 2019 15:18:56 +0000 (11:18 -0400)
committerMike Bayer <mike_mp@zzzcomputing.com>
Wed, 23 Oct 2019 15:20:27 +0000 (11:20 -0400)
commit57d5287cc1fa0b3c36ce1a64f715185888adb95a
treefb448955803bee30d444f0854de09902c95c9729
parent1ae29250f3fc0f45d83e6516e1fe94099e43f24f
Add doc note for multiple table mapping

When mapping to a construct like OUTER JOIN, an UPDATE from the
ORM expects that all involved tables have a row already present;
document this as well as a potential workaround.

Fixes: #4927
Change-Id: Ie99f9f53cea33d9df2513f384a7c68676b197fb7
(cherry picked from commit 2cae55269b6745bd733be142a6e199d8ecf9b50a)
doc/build/orm/nonstandard_mappings.rst