presto-main/src/main/java/io/prestosql/type/IntervalYearMonthOperators.java/IntervalYearMonthOperators/xxHash64
class IntervalYearMonthOperators:    @ScalarOperator(XX_HASH_64)
    @SqlType(StandardTypes.BIGINT)
    public static long xxHash64(@SqlType(StandardTypes.INTERVAL_YEAR_TO_MONTH) long value)
    {
        return XxHash64.hash(value);
    }