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