class Rpush311Updates < ActiveRecord::Migration[5.0] def self.up change_table :rpush_notifications do |t| t.remove_index name: 'index_rpush_notifications_multi' t.index [:delivered, :failed, :processing, :deliver_after, :created_at], name: 'index_rpush_notifications_multi', where: 'NOT delivered AND NOT failed' end end def self.down change_table :rpush_notifications do |t| t.remove_index name: 'index_rpush_notifications_multi' t.index [:delivered, :failed], name: 'index_rpush_notifications_multi', where: 'NOT delivered AND NOT failed' end end end