presto-spi/src/main/java/io/prestosql/spi/type/UnscaledDecimal128Arithmetic.java/UnscaledDecimal128Arithmetic/hash
class UnscaledDecimal128Arithmetic:    public static long hash(Slice decimal)
    {
        return hash(getRawLong(decimal, 0), getRawLong(decimal, 1));
    }