I am using Mondrian 3.2.1. I notice that for a given MDX query, it is generating individual query for each cell against Netezza server. This is very expansive for Netezza since each query will fire up all the Netezza SPUs, the starting time for each query is slow. However Netezza is designed for large query results. Is there a 'grouping set' like feature for Netezza, where small queries can be combined into one? If yes, what is the setting? Otherwise, is this problem will be resolve in Mondrian 4?

Thanks in advance