Merge "db: Don't inherit cache for DeleteFromSelect"

glance/db/sqlalchemy/api.py

@@ -1470,6 +1470,8 @@ def image_tag_get_all(context, image_id, session=None):
 
 
 class DeleteFromSelect(sa_sql.expression.UpdateBase):
+    inherit_cache = False
+
     def __init__(self, table, select, column):
         self.table = table
         self.select = select

glance/tests/unit/fixtures.py

@@ -185,16 +185,6 @@ class WarningsFixture(pyfixtures.Fixture):
             category=sqla_exc.SAWarning,
         )
 
-        # ...but filter everything out until we get around to fixing them
-        # TODO(stephenfin): Fix all of these
-
-        warnings.filterwarnings(
-            'ignore',
-            module='glance',
-            category=sqla_exc.SAWarning,
-            message='Class DeleteFromSelect will not make use of SQL ',
-        )
-
         self.addCleanup(self._reset_warning_filters)
 
     def _reset_warning_filters(self):