presto-main/src/main/java/io/prestosql/type/SmallintOperators.java/SmallintOperators/modulus
class SmallintOperators:    @ScalarOperator(MODULUS)
    @SqlType(StandardTypes.SMALLINT)
    public static long modulus(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
    {
        try {
            return left % right;
        }
        catch (ArithmeticException e) {
            throw new PrestoException(DIVISION_BY_ZERO, "Division by zero", e);
        }
    }