#31136: Multiple annotations with Exists() should not group by aliases.
-------------------------------------+-------------------------------------
Reporter: Sigurd Ljødal | Owner: felixxm
Type: Bug | Status: new
Component: Database layer | Version: 3.0
(models, ORM) |
Severity: Release blocker | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by felixxm):
* status: closed => new
* resolution: fixed =>
Comment:
I found a regression in this fix when I was trying to reproduce #31150,
see
{{{
diff --git a/tests/aggregation/tests.py b/tests/aggregation/tests.py
index f523b3ca35..0209a9221b 100644
--- a/tests/aggregation/tests.py
+++ b/tests/aggregation/tests.py
@@ -1165,6 +1165,27 @@ class AggregateTestCase(TestCase):
'Sams',
])
+ def test_aggregation_subquery_annotation_distinct(self):
+ books_qs = Book.objects.annotate(
+ first_author_the_same_age=Subquery(
+ Author.objects.filter(
+ age=OuterRef('contact__friends__age'),
+ ).order_by('age').values('id')[:1],
+ )
+ ).filter(
+ publisher=self.p1,
+ first_author_the_same_age__isnull=False,
+ ).annotate(
+ min_age=Min('contact__friends__age'),
+ ).values('name', 'min_age').distinct()
+ self.assertEqual(list(books_qs),[
+ {
+ 'name': 'The Definitive Guide to Django: Web Development
Done Right',
+ 'min_age': 29,
+ },
+ {'name': 'Practical Django Projects', 'min_age': 34},
+ ])
+
@skipUnlessDBFeature('supports_subqueries_in_group_by')
def test_group_by_subquery_annotation(self):
"""
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/31136#comment:6>
Django <https://code.djangoproject.com/>
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