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Fixed #30099 -- Fixed invalid SQL when filtering a Subquery by an aggregate.

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Nasir Hussain 2019-01-15 01:52:09 +05:00 • committed by Tim Graham
parent 87bf35abd3
commit f021c110d0
3 changed files with 14 additions and 0 deletions
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12
tests/expressions/tests.py
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@ -534,6 +534,18 @@ class BasicExpressionsTests(TestCase):
outer = Company.objects.filter(pk__in=Subquery(inner.values('pk')))
self.assertFalse(outer.exists())
def test_subquery_filter_by_aggregate(self):
Number.objects.create(integer=1000, float=1.2)
Employee.objects.create(salary=1000)
qs = Number.objects.annotate(
min_valuable_count=Subquery(
Employee.objects.filter(
salary=OuterRef('integer'),
).annotate(cnt=Count('salary')).filter(cnt__gt=0).values('cnt')[:1]
),
)
self.assertEqual(qs.get().float, 1.2)
def test_explicit_output_field(self):
class FuncA(Func):
output_field = models.CharField()