-class RenameMetadataAttributes < ActiveRecord::Migration
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
+class RenameMetadataAttributes < ActiveRecord::Migration[4.2]
def up
rename_column :metadata, :target_kind, :tail_kind
rename_column :metadata, :target_uuid, :tail