Fixed #33670 -- Fixed altering primary key on SQLite.

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/schema/tests.py b/tests/schema/tests.py
index 049e604480..3fe41f5336 100644
--- a/tests/schema/tests.py
+++ b/tests/schema/tests.py
@@ -3584,6 +3584,21 @@ class SchemaTests(TransactionTestCase):
         )
         self.assertEqual(self.get_primary_key(Tag._meta.db_table), "slug")
 
+    def test_alter_primary_key_the_same_name(self):
+        with connection.schema_editor() as editor:
+            editor.create_model(Thing)
+
+        old_field = Thing._meta.get_field("when")
+        new_field = CharField(max_length=2, primary_key=True)
+        new_field.set_attributes_from_name("when")
+        new_field.model = Thing
+        with connection.schema_editor() as editor:
+            editor.alter_field(Thing, old_field, new_field, strict=True)
+        self.assertEqual(self.get_primary_key(Thing._meta.db_table), "when")
+        with connection.schema_editor() as editor:
+            editor.alter_field(Thing, new_field, old_field, strict=True)
+        self.assertEqual(self.get_primary_key(Thing._meta.db_table), "when")
+
     def test_context_manager_exit(self):
         """
         Ensures transaction is correctly closed when an error occurs