We are experiencing a similar problem, even though we are on 8.4 and have been for a while, and have autovacuum turned on. I have regular concurrent reindexes on the indexes but the primary key is seriously bloated. I was considering doing the same thing, that is, create another primary key that is built on a sequence ( primarily for slony) and then change my current multi-column primary key to a unique index. Have you been able to work around the problem in any other way? Thanks RV -- View this message in context: http://postgresql.1045698.n5.nabble.com/Primary-key-vs-unique-index-tp3883778p5715712.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
