presto-main/src/main/java/io/prestosql/type/IntervalDayTimeOperators.java/IntervalDayTimeOperators/indeterminate
class IntervalDayTimeOperators:    @ScalarOperator(INDETERMINATE)
    @SqlType(StandardTypes.BOOLEAN)
    public static boolean indeterminate(@SqlType(StandardTypes.INTERVAL_DAY_TO_SECOND) long value, @IsNull boolean isNull)
    {
        return isNull;
    }