diff options
| -rw-r--r-- | django/contrib/postgres/fields/array.py | 3 | ||||
| -rw-r--r-- | tests/postgres_tests/test_array.py | 9 |
2 files changed, 12 insertions, 0 deletions
diff --git a/django/contrib/postgres/fields/array.py b/django/contrib/postgres/fields/array.py index 7992740663..a5f6573766 100644 --- a/django/contrib/postgres/fields/array.py +++ b/django/contrib/postgres/fields/array.py @@ -240,6 +240,9 @@ class ArrayLenTransform(Transform): class ArrayInLookup(In): def get_prep_lookup(self): values = super().get_prep_lookup() + if hasattr(self.rhs, '_prepare'): + # Subqueries don't need further preparation. + return values # In.process_rhs() expects values to be hashable, so convert lists # to tuples. prepared_values = [] diff --git a/tests/postgres_tests/test_array.py b/tests/postgres_tests/test_array.py index e2e4ccdeb2..4503a212cc 100644 --- a/tests/postgres_tests/test_array.py +++ b/tests/postgres_tests/test_array.py @@ -176,6 +176,15 @@ class TestQuerying(PostgreSQLTestCase): self.objs[:2] ) + def test_in_subquery(self): + IntegerArrayModel.objects.create(field=[2, 3]) + self.assertSequenceEqual( + NullableIntegerArrayModel.objects.filter( + field__in=IntegerArrayModel.objects.all().values_list('field', flat=True) + ), + self.objs[2:3] + ) + @unittest.expectedFailure def test_in_including_F_object(self): # This test asserts that Array objects passed to filters can be |