# The latest error message, or `null` if there is none
	fun error: nullable String
	do
		if not native_connection.is_valid then
			var err = sys.sqlite_open_error
			if err.is_ok then return null
			return err.to_s
		end

		var err = native_connection.error
		if err.is_ok then return null
		return err.to_s
	end