#25171: Can't update queryset after Count annotation
-------------------------------------+-------------------------------------
     Reporter:  fraserharris         |                    Owner:  nobody
         Type:  Bug                  |                   Status:  new
    Component:  Database layer       |                  Version:  1.6
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:  queryset, update,    |             Triage Stage:  Accepted
  annotate, count                    |
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by carljm):

 Replying to [comment:4 shaib]:
 > For the query given in the report:
 > {{{
 > Category.objects.annotate(Count('tiles')).update(name='foo')
 > }}}
 > I would like to see a warning (if not an error) because the annotation
 is "dead code" and probably a bug.

 Sure, but unless that falls out naturally in an implementation that
 supports the useful cases, I think it's firmly in nice-to-have territory.
 An implementation that let this pass silently wouldn't bother or surprise
 me at all.

--
Ticket URL: <https://code.djangoproject.com/ticket/25171#comment:5>
Django <https://code.djangoproject.com/>
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