Is there documentation for the list of functions available in the db engine?
I am trying to group by a substring of a field in an evaluate expression (
group: "substring(slot.wuc, 0, 2)"), and I get the error
"Can't group on a projection that isn't handled by the db engine: 'substring(slot.wuc, 0, 2)'"
At the very least, is there another db engine function that could handle this case?