presto-main/src/main/java/io/prestosql/type/SmallintOperators.java/SmallintOperators/lessThanOrEqual
class SmallintOperators:    @ScalarOperator(LESS_THAN_OR_EQUAL)
    @SqlType(StandardTypes.BOOLEAN)
    public static boolean lessThanOrEqual(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
    {
        return left <= right;
    }