The dataset is some 1000 rows; usually while developing I limit to 10. I did it again: developed a query, and just as I was finishing - crash. (this time without "as checksum")
Wil do it again, with "as checksum" ... and it works.
I keep on trying to make it reproducible, with a limit amount of data.
Harald
Hmm, I can't see how those changes would break things. How big is your dataset btw? I tried my own version of your query on a few hundred rows of data and it worked fine after 50 or more refreshes.
