#29725: Inefficient SQL generated when counting a ManyToMany
-------------------------------------+-------------------------------------
Reporter: Gavin Wahl | Owner: ontowhee
Type: | Status: closed
Cleanup/optimization |
Component: Database layer | Version: dev
(models, ORM) |
Severity: Normal | Resolution: fixed
Keywords: | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Mariusz Felisiak <felisiak.mariusz@…>):
* resolution: => fixed
* status: assigned => closed
Comment:
In [changeset:"66e47ac69a7e71cf32eee312d05668d8f1ba24bb" 66e47ac6]:
{{{#!CommitTicketReference repository=""
revision="66e47ac69a7e71cf32eee312d05668d8f1ba24bb"
Fixed #29725 -- Removed unnecessary join in QuerySet.count() and exists()
on a many to many relation.
Co-Authored-By: Shiwei Chen <[email protected]>
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/29725#comment:29>
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