mastodon/db/migrate/20180106000232_add_index_on_statuses_for_api_v1_accounts_account_id_statuses.rb

class AddIndexOnStatusesForApiV1AccountsAccountIdStatuses < ActiveRecord::Migration[5.1]
  disable_ddl_transaction!

  def change
    safety_assured do
      add_index :statuses, [:account_id, :id, :visibility, :updated_at], order: { id: :desc }, algorithm: :concurrently, name: :index_statuses_20180106
    end
    remove_index :statuses, name: :index_statuses_on_account_id_id
  end
end