tuple() function performance problem

[sanchoniathon]

Hello,

I am using a report with one simple list of 7 metrics + 2 calculated columns.

I run the report and it executes with no problem in 2 seconds.

I ADD another calculated column at the end of my list with the following code:
tuple([METRIC];[Day1])

I run the report and it takes about 5 minutes to execute .... Not normal ?

Anyone knows if there are know performance issues with the tuple function ?

Thanks !