#33975: Using .filter with lookup field__in=queryset where queryset contains
.annotate and .alias fails
-----------------------------------------+------------------------
Reporter: gmuj | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 4.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-----------------------------------------+------------------------
Here is a test case to reproduce the bug, you can add this in
tests/annotations/tests.py
{{{#!python
def test_annotation_and_alias_filter_in_subquery(self):
long_books_qs = (
Book.objects.filter(
pages__gt=400,
)
.annotate(book_annotate=Value(1))
.alias(book_alias=Value(1))
)
publisher_books_qs = (
Publisher.objects.filter(
book__in=long_books_qs
)
.values("name")
)
self.assertCountEqual(
publisher_books_qs,
[
{'name': 'Apress'},
{'name': 'Sams'},
{'name': 'Prentice Hall'},
{'name': 'Morgan Kaufmann'}
]
)
}}}
You should get this error:
{{{django.db.utils.OperationalError: sub-select returns 10 columns -
expected 1}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/33975>
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