#33655: Unnecessary column in a GROUP BY clause with QuerySet.exists()
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Reporter: Marc Perrin | Owner: nobody
Type: | Status: new
Cleanup/optimization |
Component: Database layer | Version: 4.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: exists group by | 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 Mariusz Felisiak):
> provided the value of said column does not affect the exists() return
value - for example if it's 0?
No, it's not. It's enough for the query to return any rows.
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Ticket URL: <https://code.djangoproject.com/ticket/33655#comment:3>
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