#15624: aggregate produces incorrect sql statement
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Reporter: zeroos <232002@…> | Owner: fhahn
Type: Bug | Status: assigned
Component: ORM aggregation | Version: master
Severity: Normal | Resolution:
Keywords: aggregate sql | Triage Stage: Accepted
syntax error | Needs documentation: 0
Has patch: 1 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
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Changes (by fhahn):
* cc: flo@… (added)
* owner: => fhahn
* status: new => assigned
* needs_tests: 1 => 0
Comment:
I think the problem with {{{
Book.objects.annotate(c=Count('authors')).values('c').aggregate(Max('c'))
}}} was that the call to {{{ .values('c') }}} set the {{{
aggregates_select_mask }}} to {{{ set(['c']) }}} and then {{{ c__max }}}
does not show up in {{{ aggregate_select }}}.
I've updated the patch and created a pull request:
https://github.com/django/django/pull/738
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Ticket URL: <https://code.djangoproject.com/ticket/15624#comment:9>
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