presto-main/src/main/java/io/prestosql/operator/scalar/RowLessThanOrEqualOperator.java/RowLessThanOrEqualOperator/RowLessThanOrEqualOperator
class RowLessThanOrEqualOperator:    private RowLessThanOrEqualOperator()
    {
        super(LESS_THAN_OR_EQUAL);
    }