Re: preserving forensic information when we freeze

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)2ndquadrant(dot)com>, Jim Nasby <jim(at)nasby(dot)net>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: preserving forensic information when we freeze
Date: 2013-12-20 19:17:19
Message-ID: 20131220191718.GD22570@eldon.alvh.no-ip.org
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Robert Haas escribió:
> On Fri, Dec 20, 2013 at 1:41 PM, Alvaro Herrera
> <alvherre(at)2ndquadrant(dot)com> wrote:

> > I assume without checking that passing reloid/ctid would allow this to
> > work for tuples in a RETURNING clause; and if we ever have an OLD
> > reference for the RETURNING clause of an UPDATE, that it would work
> > there, too, showing the post-update status of the updated tuple.
>
> I don't understand what you're saying here. Are you saying that
> reloid/ctid is a better approach, a worse approach, or just a
> different approach?

That probably wasn't worded very well. I am just saying that whatever
approach we end up with, it would be nice that it worked somehow with
RETURNING clauses.

--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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