On Sat, Nov 13, 2010 at 4:32 AM, Marc Mamin <M.Mamin@xxxxxxxxxxxx> wrote: > Hello, > > Just a short though: > > Is it imaginable to compare the prognoses of the plans with the actual > results > and somehow log the worst cases ? > > a) to help the DBA locate bad statistics and queries > b) as additional information source for the planner > > This could possibly affect parameters of your formula on the fly. Yeah, I've thought about this, but it's not exactly clear what would be most useful. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance