#30771: Filtering on query result overrides GROUP BY of internal query
-------------------------------------+-------------------------------------
Reporter: Aur Saraf | Owner: James
| Timmins
Type: Bug | Status: assigned
Component: Database layer | Version: 2.2
(models, ORM) |
Severity: Normal | Resolution:
Keywords: annotate, | Triage Stage:
annotation, filter, groupby, | Unreviewed
aggregate, aggregation |
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 Simon Charette):
Thanks for tackling that one James!
If I can provide you some guidance I'd suggest you have a look at
`lookups.Exact.process_rhs`
https://github.com/django/django/blob/ea25bdc2b94466bb1563000bf81628dea4d80612/django/db/models/lookups.py#L265-L267
We probably don't want to perform the `clear_select_clause` and
`add_fields(['pk'])` when the query is already only selecting a single
field.
--
Ticket URL: <https://code.djangoproject.com/ticket/30771#comment:3>
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