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Fixed #28925 -- Fixed durations-only expressions crash on SQLite and MySQL.

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This removes also unused DatabaseOperations.date_interval_sql().
This commit is contained in:
Sergey Fedoseev 2020-06-29 11:28:06 +05:00 • committed by Mariusz Felisiak
parent 9d752dabe3
commit dd5aa8cb5f
6 changed files with 22 additions and 40 deletions
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6
tests/expressions/tests.py
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@ -1468,6 +1468,12 @@ class FTimeDeltaTests(TestCase):
))
self.assertIsNone(queryset.first().shifted)
def test_duration_expressions(self):
for delta in self.deltas:
qs = Experiment.objects.annotate(duration=F('estimated_time') + delta)
for obj in qs:
self.assertEqual(obj.duration, obj.estimated_time + delta)
@skipUnlessDBFeature('supports_temporal_subtraction')
def test_date_subtraction(self):
queryset = Experiment.objects.annotate(