Difference between column and only(column)

[#1]

Hi,

Can anyone let me know what is the difference between

Columnname and Only(Columnname) when used in expression

Thanks.

[CELAMBARASAN]

Only cannot be used in dimension. It can only be used in expression.

But you can use expression in dimension combined with Aggr

Aggr(If(Not IsNull(FieldName), FieldName), FieldName)

[#3]

Thanks for your answer.