On 2014-03-18 12:52:49 -0700, Josh Berkus wrote: > On 03/18/2014 12:35 PM, Andres Freund wrote: > > I still think a rewriting noop ALTER TABLE ... ALTER COLUMN col TYPE > > old_type USING (col); is the only real thing to do. > > Then why wouldn't VACUUM FULL work?
Please read the referenced message and children. It will use rewriteheap.c which tries to maintain the update chains. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers