Re: pgsql: Fix a couple of bugs in MultiXactId freezing

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Andres Freund <andres(at)2ndquadrant(dot)com>
Cc: Noah Misch <noah(at)leadboat(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pgsql: Fix a couple of bugs in MultiXactId freezing
Date: 2013-12-03 19:19:24
Message-ID: 20131203191923.GG5158@eldon.alvh.no-ip.org
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Andres Freund wrote:
> On 2013-12-03 13:49:49 -0500, Noah Misch wrote:
> > On Tue, Dec 03, 2013 at 07:26:38PM +0100, Andres Freund wrote:
> > > On 2013-12-03 13:14:38 -0500, Noah Misch wrote:
> > > > Not fixing it at all is the real no-go. We'd take both of those undesirables
> > > > before just tolerating the lost locks in 9.3.
> > >
> > > I think it's changing the wal format then.
> >
> > I'd rather have an readily-verifiable fix that changes WAL format than a
> > tricky fix that avoids doing so. So, modulo not having seen the change, +1.
>
> Well, who's going to write that then? I can write something up, but I
> really would not like not to be solely responsible for it.

I will give this a shot.

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

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