#33003: Micro-optimisation for QuerySet._chain
-------------------------------------+-------------------------------------
Reporter: Keryn Knight | Owner: Keryn
Type: | Knight
Cleanup/optimization | Status: closed
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 GitHub <noreply@…>):
* status: assigned => closed
* resolution: => fixed
Comment:
In [changeset:"921e4ccb77ed2056d5cdfc6756ee82b54831937f" 921e4cc]:
{{{
#!CommitTicketReference repository=""
revision="921e4ccb77ed2056d5cdfc6756ee82b54831937f"
Fixed #33003 -- Removed **kwargs from QuerySet._chain().
The functionality of updating the __dict__ was only present to allow
for pickling a Prefetch object, which is a comparably rare operation.
Forcing the __getstate__() implementation to handle it allows the
chaining operation to be slightly faster, which is much more common.
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/33003#comment:4>
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