On Tue, 1 Dec 2009, Jean-Michel Pouré wrote:
PostgreSQL query analyzer needs to run a couple of times before it can rewrite and optimize the query. Make sure demand_id, id and join IDs carry indexes.
Huh? At what point does the planner carry over previous plans and use them to further optimise the query?
But perhaps the biggest factor here is calling a five table join a "pretty simple query".
Matthew -- Prolog doesn't have enough parentheses. -- Computer Science Lecturer -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
