I have used aggregation groups to reduce cuboids, but it seems not take effect. A table has dimension A, B, C, D, E, and set this aggregation groups: group 1: A,B,C which has joint dimensions A,B,C group 2: A,B,D which has joint dimensions A,B,D group 3: A,B,E which has joint dimensions A,B,E but I can query the table using "group by A B C E" , is it OK?
