From: Tom Lane <tgl@sss.pgh.pa.us>
To: Mark Rostron <mrostron@ql2.com>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: xid wraparound
Date: Sat, 25 Sep 2010 20:53:42 -0400
Message-ID: <17534.1285462422@sss.pgh.pa.us> (raw)
In-Reply-To: <FD020D3E50E7FA479567872E5F5F31E3045A05CB90@ex01.corp.ql2.com>
References: <FD020D3E50E7FA479567872E5F5F31E3045A05CB90@ex01.corp.ql2.com>
Mark Rostron <mrostron@ql2.com> writes:
> When the XID wraps, at the moment it does so, unless you set
> vacuum_freeze_min_age to 0 and a vacuum has just been performed, is
> there not a chance that there will be some data loss?
No. XID comparisons are modulo 2^31.
regards, tom lane
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, mrostron@ql2.com
Subject: Re: xid wraparound
In-Reply-To: <17534.1285462422@sss.pgh.pa.us>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox