#24702: Cache Query objects when possible
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Reporter: thedrow | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Database layer (models, ORM) | Version: 1.8
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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Currently Django constructs the Query objects every time you query the
database.
This is often unnecessary and can be avoided.
I started memoizing some of the Query objects that the manager creates but
I encountered some test failures related to prefetch_related querysets.
This is the memoized manager implementation
https://github.com/thedrow/django/blob/feature/memoized-
manager/django/db/models/manager.py#L244
I'm not sure it should be in a separate class but I created another one
because of some of the required API changes.
Can anyone explain the test failures?
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Ticket URL: <https://code.djangoproject.com/ticket/24702>
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