20170507141759_optimize_index_subscriptions.rb (371B)
- class OptimizeIndexSubscriptions < ActiveRecord::Migration[5.0]
- def up
- add_index :subscriptions, [:account_id, :callback_url], unique: true
- remove_index :subscriptions, [:callback_url, :account_id]
- end
- def down
- add_index :subscriptions, [:callback_url, :account_id], unique: true
- remove_index :subscriptions, [:account_id, :callback_url]
- end
- end