Hi @shyamspr,

Yes, I tried like this and it works but the way I want is to pass the column names inside Seq by reading from a widget or a parameter file and when I do I get the error.

https://stackoverflow.com/questions/58576398/how-to-pass-column-names-in-selectexpr-through-one-or-m...

I have updated the above post in stackoverflow with the code I tried and the error I am getting. Would appreciate if you could take a look and suggest any if you have any ideas to resolve this.

Thank You!