Opened 3 years ago
Last modified 14 months ago
#33482 closed Bug
filter on exists-subquery with emoty queryset removes whole WHERE block — at Initial Version
| Reported by: | Tobias Bengfort | Owned by: | nobody |
|---|---|---|---|
| Component: | Database layer (models, ORM) | Version: | 4.0 |
| Severity: | Normal | Keywords: | orm, EmptyResultSet, Exists |
| Cc: | Triage Stage: | Ready for checkin | |
| Has patch: | yes | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description
`
qs = MyModel.objects.filter(~models.Exists(MyModel.objects.none()), name='test')
qs
<QuerySet []>
print(qs.query)
EmptyResultSet
`
With django-debug-toolbar I can still see the query, but there WHERE block is missing completely.
This seems to be very similar to #33018.
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