Refs #29444 -- Allowed returning multiple fields from INSERT statements on PostgreSQL.

Thanks Florian Apolloner, Tim Graham, Simon Charette, Nick Pope, and
Mariusz Felisiak for reviews.

tests/backends/oracle/tests.py

@@ -1,4 +1,3 @@
-import datetime
 import unittest
 
 from django.db import connection
@@ -6,7 +5,7 @@ from django.db.models.fields import BooleanField, NullBooleanField
 from django.db.utils import DatabaseError
 from django.test import TransactionTestCase
 
-from ..models import NonIntegerAutoField, Square
+from ..models import Square
 
 
 @unittest.skipUnless(connection.vendor == 'oracle', 'Oracle tests')
@@ -96,23 +95,3 @@ class TransactionalTests(TransactionTestCase):
             self.assertIn('ORA-01017', context.exception.args[0].message)
         finally:
             connection.settings_dict['PASSWORD'] = old_password
-
-    def test_non_integer_auto_field(self):
-        with connection.cursor() as cursor:
-            # Create trigger that fill non-integer auto field.
-            cursor.execute("""
-                CREATE OR REPLACE TRIGGER "TRG_FILL_CREATION_DATETIME"
-                BEFORE INSERT ON "BACKENDS_NONINTEGERAUTOFIELD"
-                FOR EACH ROW
-                BEGIN
-                    :NEW.CREATION_DATETIME := SYSTIMESTAMP;
-                END;
-            """)
-        try:
-            NonIntegerAutoField._meta.auto_field = NonIntegerAutoField.creation_datetime
-            obj = NonIntegerAutoField.objects.create()
-            self.assertIsNotNone(obj.creation_datetime)
-            self.assertIsInstance(obj.creation_datetime, datetime.datetime)
-        finally:
-            with connection.cursor() as cursor:
-                cursor.execute('DROP TRIGGER "TRG_FILL_CREATION_DATETIME"')