#
# Copyright (C) 2015 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.

class AddAccountReportsIndex < ActiveRecord::Migration[4.2]
  tag :postdeploy
  disable_ddl_transaction!

  def change
    add_index :account_reports, [:account_id, :report_type, :updated_at], order: { updated_at: :desc }, algorithm: :concurrently, name: 'index_account_reports_latest_per_account'
  end
end