[1.5.x] Fixed #19112 -- Reduced the amount of query params in a test

Backpatch of 604d8763dc.

tests/regressiontests/queries/tests.py

@@ -1881,8 +1881,10 @@ class ConditionalTests(BaseQuerysetTest):
     @skipUnlessDBFeature('supports_1000_query_parameters')
     def test_ticket14244(self):
         # Test that 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 = range(2050)
         Number.objects.all().delete()
-        numbers = range(2500)
         Number.objects.bulk_create(Number(num=num) for num in numbers)
         self.assertEqual(
             Number.objects.filter(num__in=numbers[:1000]).count(),
@@ -1898,7 +1900,7 @@ class ConditionalTests(BaseQuerysetTest):
         )
         self.assertEqual(
             Number.objects.filter(num__in=numbers).count(),
-            2500
+            len(numbers)
         )