An update to our system means I'm going to be rewriting every row of some large tables (20 million rows by 15 columns). In a situation like this, can auto-vacuum take care of it, or should I plan on vacuum-full/reindex to clean up? This is 8.4.4. Thanks, Craig -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance