Cubulus and bitmap indexes opinion

S. Lott has written a short note regarding Cubulus. Quote: "It may be that this technique helps a lot with an RDBMS that doesn't support the star schema via bit-mapped indexes. It may be that this technique only helps a little with a more modern RDBMS."

Somewhat true, haven't measured GROUP BY versus range-queries with bitmap indexes (say, in Oracle), and neither in MonetDB. Time will tell if simpler and "embarrasingly parallel" SQL is better..