#24912: prefetch_related fails with sqlite3 database and UUIDField primary keys
-------------------------------------+-------------------------------------
Reporter: brki | Owner: zedr
Type: Bug | Status: assigned
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: UUIDField | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by brki):
Not sure what happened, I thought I'd posted this here already:
This seems to fix the issue for me, what do you think:
https://github.com/brki/django/commit/deec2487609c211f2225bf3b415a574c540bea7e
I've adapted the test a bit locally, too:
{{{
# This test passes if the target database is Postgresql, but fails for
sqlite3:
def test_prefetch_related(self):
with self.assertNumQueries(2):
players =
list(Player.objects.filter(id=self.player_id).prefetch_related('awards'))
with self.assertNumQueries(0):
player = players[0]
self.assertEqual(2, len(player.awards.all()))
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/24912#comment:7>
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