>I think the problem is "just" that for each variable, in each grouping >set - a very large number in a large cube - we're recursing through the >whole ChainAggregate tree, as each Var just points to a var one level >lower.
For small values of very large, that is. Had a little thinko there. Its still fault of recursing down all these levels, doing nontrivial work each time. -- Please excuse brevity and formatting - I am writing this on my mobile phone. Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
