#28900: QuerySet.values() and values_list() for compound queries fails with
annotation.
-------------------------------------+-------------------------------------
Reporter: elliott-omosheye | Owner: ontowhee
Type: Bug | Status: assigned
Component: Database layer | Version: 1.11
(models, ORM) |
Severity: Normal | Resolution:
Keywords: union, values | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by ontowhee):
Replying to [comment:10 David Sanders]:
Thanks for the simple example!
I'm not too knowledgeable about the ORM, but I'm trying to work through
this problem. Is the problem within annotate, or somewhere else, or a
combination of annotate and something else?
Using the simple example, I tried taking the union of Foo and Bar without
any annotation, and I apply `.values('name')` to the result
{{{
Foo.objects.create(name='hello')
Bar.objects.create(name='goodbye')
qs = Foo.objects.all().union(Bar.objects.all())
print(qs)
}}}
and it gives
{{{
<QuerySet [{'name': 'goodbye'}, {'name': 'hello'}]>
}}}
Which is correct and expected. However, when I remove `.values('name')`
{{{
qs = Foo.objects.all().union(Bar.objects.all())
print(qs)
}}}
it then gives
{{{
<QuerySet [<Foo: Foo object (1)>, <Foo: Foo object (1)>]>
}}}
Is this expected, or is this something to look into?
--
Ticket URL: <https://code.djangoproject.com/ticket/28900#comment:15>
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