-class AddOutputNameToContainerRequestSearchIndex < ActiveRecord::Migration
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
+class AddOutputNameToContainerRequestSearchIndex < ActiveRecord::Migration[4.2]
def up
begin
remove_index :container_requests, :name => 'container_requests_search_index'