Please stop reposting your questions to multiple groups. Since all your questions are about performance, please stick to the pgsql-performance list. Posting to pgsql-sql is not really appropriate, and in pgsql-admin you're totally off-topic.
-- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
