#29725: Inefficient SQL generated when counting a ManyToMany
-------------------------------------+-------------------------------------
     Reporter:  Gavin Wahl           |                    Owner:  oliver
         Type:                       |                   Status:  assigned
  Cleanup/optimization               |
    Component:  Database layer       |                  Version:  master
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:                       |             Triage Stage:  Accepted
    Has patch:  1                    |      Needs documentation:  0
  Needs tests:  1                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by Tom Forbes):

 Have we considered making this change for `exists()` as well? I'm sure
 this will generate the join in the same way that `count()` does.

 Also somewhat related: https://code.djangoproject.com/ticket/28477

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29725#comment:7>
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