# frozen_string_literal: true class AddUserFkToGhostUserMigrations < Gitlab::Database::Migration[2.0] disable_ddl_transaction! def up add_concurrent_foreign_key :ghost_user_migrations, :users, column: :user_id, on_delete: :cascade end def down with_lock_retries do remove_foreign_key :ghost_user_migrations, column: :user_id end end end