#31331: GROUP BY optimization doesn't work properly when ONLY_FULL_GROUP_BY
mode is
enabled on MySQL.
-------------------------------------+-------------------------------------
Reporter: Mariusz Felisiak | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: ONLY_FULL_GROUP_BY | Triage Stage: Accepted
MySQL MariaDB |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Simon Charette):
For anyone wanting to tackle this, proper support for `ONLY_FULL_GROUP_BY`
could likely be added by
[https://github.com/django/django/blob/e0a46367df8b17905f1c78f5c86f88d21c0f2b4d/django/db/models/sql/compiler.py#L149-L177
adjusting the MySQL's group by collapsing feature] to take the presence of
this flag into account.
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Ticket URL: <https://code.djangoproject.com/ticket/31331#comment:6>
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