#18378: Q() combined with annotate() can produce bad SQL
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Reporter: joseph.helfer@… | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.3
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Accepted
Keywords: | Needs documentation: 0
Has patch: 0 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
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Comment (by anonymous):
I think this should really be fixed, be it as it may an SQL bug.
In the meantime, I'm using the following workaround:
{{{#!python
ids = [x[0] for x in
Model2.objects.annotate(bar=Count('foo')).filter(Q(bar__gt=0)|Q(model1__name='goo')).values('id',
'model1__name')]
Model2.objects.filter(id__in=ids)
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/18378#comment:5>
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