On Mon, May 10, 2010 at 12:40 PM, Gerardo Herzig <gher...@fmed.uba.ar> wrote: > Hi all. Im triyng to see if i can improve the performance of a query > (mainly a 10 table join) > > 1) Besides of triyng to use indexes, there is some rules of thumb to follow?
log long running queries for later analysis? > 2) Should i try to join the bigger tables last in the query? The query planner can do that for you automatically. > 3) There is some place for understanding EXPLAIN better? http://explain.depesz.com/ Here and the docs? I've found it pretty easy to post one here and ask for help and get it on why a query isn't running well. Note that explain analyze is much preferred to plain explain. -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
