On Thu, Mar 17, 2011 at 6:19 AM, Voils, Steven M <steve@xxxxxxxxxxxxxxxx> wrote: > Is there a fundamental difference between a primary key and a unique index? > Currently we have primary keys on tables that have significant amounts of > updates performed on them, as a result the primary key indexes are becoming > significantly bloated. There are other indexes on the tables that also > become bloated as a result of this, but these are automatically rebuild > periodically by the application (using the concurrently flag) when read > usage is expected to be very low. If you're experiencing bloat, but not deleting huge chunks of your table at a time, then you're not vacuuming aggressively enough -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general