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From: Tom Lane <tgl@sss.pgh.pa.us>
To: KKreuzer@kbtoys.com
Cc: pgsql-admin@postgresql.org
Subject: Re: understand the process of ID wraparound
Date: Mon, 29 Sep 2008 10:00:19 -0400
Message-ID: <11364.1222696819@sss.pgh.pa.us> (raw)
In-Reply-To: <OF58064345.B54854D9-ON852574D3.00472E01-852574D3.004B1C9E@kbtoys.com>
References: <OF58064345.B54854D9-ON852574D3.00472E01-852574D3.004B1C9E@kbtoys.com>

KKreuzer@kbtoys.com writes:
> I am hoping someone can help a novice understand the process of ID 
> wraparound, I have read many of the articles 
> on the web but don't understand why my age(datfrozenxid) never gets reset. 
> I am not sure if I even have a 
> problem, just trying to be proactive.

You don't have a problem.  The datfrozenxid values you are showing are
around 31 million transactions.  Nothing is going to happen until they
exceed vacuum_freeze_min_age, which is 100 million transactions.

			regards, tom lane



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