#11320: Over aggressive join promotion with exclude()
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Reporter: Alex | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: SVN
Resolution: | Keywords:
Stage: Unreviewed | Has_patch: 0
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Changes (by Alex):
* needs_better_patch: => 0
* needs_tests: => 0
* needs_docs: => 0
Comment:
Actually, upon further review my patch is even worse than the comment
indicates. The issue is that anything n an exlcude() gets unconditionally
promoted to an OUTER JOIN, so my current patch would fail for something
like {{{
Event.objects.filter(venue__isnull=False).exlcude(venue__name='a') }}},
because the exclude join promotion doesn't respect anything.
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Ticket URL: <http://code.djangoproject.com/ticket/11320#comment:1>
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