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Re: solving wraparound

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
Cc: "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>, Jaime Casanova <systemguards(at)gmail(dot)com>, "Lic(dot) Martin Marques" <martin(at)bugs(dot)unl(dot)edu(dot)ar>, Martijn van Oosterhout <kleptog(at)svana(dot)org>, pgsql general <pgsql-general(at)postgresql(dot)org>
Subject: Re: solving wraparound
Date: 2005-12-31 20:35:14
Message-ID: 21294.1136061314@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-general
"Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
>> Anyone think it might be reasonable to add a GUC option that tells 
>> autovacuum to monitor for wraparound only, and not for more general 
>> usage based vacuuming?  Something like autovac_wraparound_only.  Not 
>> sure I like the idea, but thought it might be worth some discussion.

> I believe 8.1 will actually stop allowing transactions if a wraparound 
> is going to occur.

Yeah.  I don't see any value to running autovac *only* for this purpose.

			regards, tom lane

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