Update the migration to reflect the state of the database.

data/migrations/versions/2fb36d4be80d_translate_the_queue_names_to_reference_.py

@@ -35,12 +35,14 @@ def upgrade(tables):
             else:
                 raise RuntimeError('Invalid queue name: %s' % item.queue_name)
 
+    op.create_index('repository_namespace_user_id', 'repository', ['namespace_user_id'], unique=False)
     op.drop_column('repository', 'namespace')
 
 
 def downgrade(tables):
     # Add the namespace column back in and fill it in
     op.add_column('repository', sa.Column('namespace', sa.String(length=255)))
+    op.drop_index('repository_namespace_user_id', table_name='repository')
 
     # Rename the namespace component of existing queue items to reference namespace strings
     with app.config['DB_TRANSACTION_FACTORY'](db):