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

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Noah Misch <noah(at)leadboat(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pgsql: Fix a couple of bugs in MultiXactId freezing
Date: 2013-12-03 21:04:24
Message-ID: 20131203210424.GH5158@eldon.alvh.no-ip.org
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Tom Lane wrote:

> After some discussion, the core committee has concluded that we should go
> ahead with the already-wrapped releases. 9.2.6 and below are good anyway,
> and despite this issue 9.3.2 is an improvement over 9.3.1. We'll plan to
> do a 9.3.3 as soon as the multixact situation can be straightened out;
> but let's learn from experience and not try to fix it in a panic.

I would suggest we include this one fix in 9.3.2a. This bug is more
serious than the others because it happens because of checking HTSU on a
tuple containing running locker-only transactions and an aborted update.

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

Attachment Content-Type Size
tqual-fix.patch text/x-diff 2.9 KB

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