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Refs #21160 -- Replaced DatabaseFeatures.supports_1000_query_parameters by a DatabaseFeatures.max_query_params.

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Mariusz Felisiak 2017-03-24 18:37:03 +01:00 • committed by GitHub
parent 1b1ea63f6a
commit f42c7cc87b
4 changed files with 16 additions and 27 deletions
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29
tests/queries/tests.py
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@ -2523,32 +2523,17 @@ class ConditionalTests(TestCase):
self.assertEqual(sql.find(fragment, pos + 1), -1)
self.assertEqual(sql.find("NULL", pos + len(fragment)), pos + len(fragment))
# Sqlite 3 does not support passing in more than 1000 parameters except by
# changing a parameter at compilation time.
@skipUnlessDBFeature('supports_1000_query_parameters')
def test_ticket14244(self):
def test_in_list_limit(self):
# The "in" lookup works with lists of 1000 items or more.
# The numbers amount is picked to force three different IN batches
# for Oracle, yet to be less than 2100 parameter limit for MSSQL.
numbers = list(range(2050))
Number.objects.all().delete()
Number.objects.bulk_create(Number(num=num) for num in numbers)
self.assertEqual(
Number.objects.filter(num__in=numbers[:1000]).count(),
1000
)
self.assertEqual(
Number.objects.filter(num__in=numbers[:1001]).count(),
1001
)
self.assertEqual(
Number.objects.filter(num__in=numbers[:2000]).count(),
2000
)
self.assertEqual(
Number.objects.filter(num__in=numbers).count(),
len(numbers)
)
max_query_params = connection.features.max_query_params
if max_query_params is None or max_query_params >= len(numbers):
Number.objects.bulk_create(Number(num=num) for num in numbers)
for number in [1000, 1001, 2000, len(numbers)]:
with self.subTest(number=number):
self.assertEqual(Number.objects.filter(num__in=numbers[:number]).count(), number)
class UnionTests(unittest.TestCase):