Tom Lane escribió: > If you want ANALYZE to be cheap then you simply don't get to have a > trustworthy value of ndistinct.
But then, maybe it's not all that critical that ANALYZE is cheap. For example, if we were to rework VACUUM ANALYZE so that on the same pass that VACUUM cleans each heap page, a callback is called on the page to grab the needed stats. Partial vacuum is a roadblock for this though :-( -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
