I am having XML as a source,so all the fields are string by default.Now,I am supposed to do a grouping on a field which is having values like(1,2,01,2,3,3,1,01,02,2,)(ideally data should be clean).But I can't modify the source,so when i group the records in this field it is treating 1 and 01 as a different value,and so i am not able to acheive desire value. Can anyone suggest any work around for solving this issue?I have already tried changing field expression that checks whether 1st digit is 0 or not and gives the unique output like (1,2,3...),but when i group by this modified expression it is not giving correct output.... Please try solving this issue..