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Fixed #30628 -- Adjusted expression identity to differentiate bound fields.

Browse source 
Expressions referring to different bound fields should not be
considered equal.

Thanks Julien Enselme for the detailed report.

Regression in bc7e288ca9.
This commit is contained in:
Simon Charette 2019-07-09 17:26:37 -04:00 • committed by Mariusz Felisiak
parent 1bbf77bea5
commit ee6e93ec87
6 changed files with 37 additions and 5 deletions
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9
tests/queries/test_qs_combinators.py
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@ -9,7 +9,7 @@ from .models import Number, ReservedName
class QuerySetSetOperationTests(TestCase):
@classmethod
def setUpTestData(cls):
Number.objects.bulk_create(Number(num=i) for i in range(10))
Number.objects.bulk_create(Number(num=i, other_num=10 - i) for i in range(10))
def number_transform(self, value):
return value.num
@ -251,3 +251,10 @@ class QuerySetSetOperationTests(TestCase):
qs1 = Number.objects.all()
qs2 = Number.objects.intersection(Number.objects.filter(num__gt=1))
self.assertEqual(qs1.difference(qs2).count(), 2)
def test_order_by_same_type(self):
qs = Number.objects.all()
union = qs.union(qs)
numbers = list(range(10))
self.assertNumbersEqual(union.order_by('num'), numbers)
self.assertNumbersEqual(union.order_by('other_num'), reversed(numbers))