Hey all,
just started to try out the incremental refresh, but I have a question:
Imagine I have a data source that contains all transactions per store per day. I set up the datetime filter that incremental refresh requires. After that I use group by in powerquery to display the data only per store, leaving out the date column.
I then publish this report to service, and set a refresh schedule.
My question is: what happens in the service? Does incremental refresh still make sense in this instance? It seems to me that because you did a group by, and powerBI only stores the end result of the query, and not the intermediate steps, it would still need to do a full refresh of all your data every time, and the incremental refresh would not work at all.
Is that assumption correct?
Thanks!
Jaap