Re: Wiki Page Draft for upcoming release

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andres Freund <andres(at)2ndquadrant(dot)com>
Cc: Greg Stark <stark(at)mit(dot)edu>, Josh Berkus <josh(at)agliodbs(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Wiki Page Draft for upcoming release
Date: 2014-03-18 20:19:01
Message-ID: 26464.1395173941@sss.pgh.pa.us
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Andres Freund <andres(at)2ndquadrant(dot)com> writes:
> On 2014-03-18 19:28:53 +0000, Greg Stark wrote:
>> It would be nice to be able to tell people that if they vacuum, then
>> reindex and check all their foreign key constraints then they should
>> be ok.

> I don't think so:
> http://archives.postgresql.org/message-id/20140317233919.GS16438%40awork2.anarazel.de

> I still think a rewriting noop ALTER TABLE ... ALTER COLUMN col TYPE
> old_type USING (col); is the only real thing to do.

Unfortunately, the operative word in that is "noop". Didn't you see
http://www.postgresql.org/message-id/11964.1395100860@sss.pgh.pa.us
It would have helped before we put in the transform smarts, but now
it's too smart.

regards, tom lane

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