-class OwnerUuidIndex < ActiveRecord::Migration
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
+class OwnerUuidIndex < ActiveRecord::Migration[4.2]
def tables_with_owner_uuid
%w{api_clients authorized_keys collections groups humans
job_tasks jobs keep_disks keep_services links logs
def down
tables_with_owner_uuid.each do |table|
- remove_index table.to_sym, :owner_uuid
+ indexes = ActiveRecord::Base.connection.indexes(table)
+ owner_uuid_index = indexes.select do |index|
+ index.columns == ['owner_uuid']
+ end
+ if !owner_uuid_index.empty?
+ remove_index table.to_sym, :owner_uuid
+ end
end
end
end