#25789: Inefficient Queries Generated due to not using WHERE EXISTS
-------------------------------------+-------------------------------------
     Reporter:  cancan101            |                    Owner:  nobody
         Type:                       |                   Status:  new
  Cleanup/optimization               |
    Component:  Database layer       |                  Version:  1.8
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:  QuerySet.extra       |             Triage Stage:  Accepted
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by schinckel):

 It's not totally relevant (at least not yet), but I have a version of this
 that works with .annotate():

 https://github.com/django/django/pull/6478

 There's also a django-developers thread that hopefully may get some
 discussion.

--
Ticket URL: <https://code.djangoproject.com/ticket/25789#comment:6>
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