Re: Wiki Page Draft for upcoming release

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: Greg Stark <stark(at)mit(dot)edu>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Wiki Page Draft for upcoming release
Date: 2014-03-18 19:55:12
Message-ID: 20140318195512.GD27491@awork2.anarazel.de
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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

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