From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Josh Berkus <josh(at)agliodbs(dot)com> |
Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: logical column ordering |
Date: | 2015-03-03 17:23:04 |
Message-ID: | 20150303172304.GG5726@momjian.us |
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Lists: | pgsql-hackers |
On Thu, Feb 26, 2015 at 01:55:44PM -0800, Josh Berkus wrote:
> On 02/26/2015 01:54 PM, Alvaro Herrera wrote:
> > This patch decouples these three things so that they
> > can changed freely -- but provides no user interface to do so. I think
> > that trying to only decouple the thing we currently have in two pieces,
> > and then have a subsequent patch to decouple again, is additional
> > conceptual complexity for no gain.
>
> Oh, I didn't realize there weren't commands to change the LCO. Without
> at least SQL syntax for LCO, I don't see why we'd take it; this sounds
> more like a WIP patch.
FYI, pg_upgrade is going to need pg_dump --binary-upgrade to output the
columns in physical order with some logical ordering information, i.e.
pg_upgrade cannot be passed only logical ordering from pg_dump.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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