#33766: FilteredRelation resolves its conditions too late which can result in
unknown alias references at SQL compilation time
-------------------------------------+-------------------------------------
Reporter: Daniel Schaffer | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 3.2
(models, ORM) |
Severity: Normal | Resolution:
Keywords: filteredrelation | Triage Stage: Accepted
coalesce |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by zhu):
The FilteredRelation cannot resolve itself too.
{{{
def test_ref_self_in_condition(self):
self.assertSequenceEqual(
Author.objects.annotate(
the_book=FilteredRelation(
"book",
condition=Q(
name=F('book__title'),
),
),
)
.filter(
the_book__isnull=False,
),
[],
)
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/33766#comment:11>
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