#25507: Can't count when using annotate(field=RawSQL(sql)) when sql is a 
constant
-------------------------------------+-------------------------------------
     Reporter:  acatton              |                    Owner:  nobody
         Type:  Bug                  |                   Status:  new
    Component:  Database layer       |                  Version:  1.8
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:  RawSQL filter ORM    |             Triage Stage:  Accepted
  sql                                |
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by jarshwah):

 I agree, this doesn't need to be a release blocker. The rationale behind
 the query not working on postgres is that non-integer constants in a group
 by do not actually affect the query at all. It'd arguably be a warning
 "are you sure you meant.." but I really don't think this should blow up.
 That's a postgres issue though, so not much point debating the merits.

 I think documenting the limitation is enough as akaariai suggested. Will a
 parameterised constant `Value()` not blow up like the static RawSQL? If
 so, then that's the obvious solution to document.

--
Ticket URL: <https://code.djangoproject.com/ticket/25507#comment:5>
Django <https://code.djangoproject.com/>
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