# frozen_string_literal: true class AddSystemNoteMetadataForeignKeyToResourceLinkEvents < Gitlab::Database::Migration[2.1] disable_ddl_transaction! def up add_concurrent_foreign_key :resource_link_events, :system_note_metadata, column: :system_note_metadata_id, on_delete: :cascade, validate: false end def down with_lock_retries do remove_foreign_key_if_exists :resource_link_events, column: :system_note_metadata_id end end end