From: Bruce Momjian <bruce@momjian.us>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: pgsql-admin@postgresql.org
Cc: radovan.jablonovsky@replicon.com
Subject: Re: what is maximum allowed value of autovacuum_freeze_max_age
Date: Thu, 13 Sep 2012 20:56:35 -0400
Message-ID: <20120914005635.GA28254@momjian.us> (raw)
In-Reply-To: <50510912020000250004A2F9@gw.wicourts.gov>
References: <50510912020000250004A2F9@gw.wicourts.gov>
On Wed, Sep 12, 2012 at 10:13:38PM -0500, Kevin Grittner wrote:
> Radovan Jablonovsky wrote:
>
> > In documentation
> > http://www.postgresql.org/docs/9.1/static/routine-vacuuming.html
> > is this information about autovacuum_freeze_max_age: "if
> > autovacuum_freeze_max_age is set to its maximum allowed value of a
> > little less than two billion". What is exact maximum allowed value
> > of autovacuum_freeze_max_age?
>
> test=# select name, setting, min_val, max_val
> test-# from pg_settings where name = 'autovacuum_freeze_max_age';
> name | setting | min_val | max_val
> ---------------------------+-----------+-----------+------------
> autovacuum_freeze_max_age | 200000000 | 100000000 | 2000000000
> (1 row)
>
> Perhaps we should drop "a little less than" from the docs.
Agreed. My guess it they were really talking about the 2-billion that
is a power of 2, but I think just saying 2 billlion is better.
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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To: pgsql-admin@postgresql.org
Cc: bruce@momjian.us, Kevin.Grittner@wicourts.gov, radovan.jablonovsky@replicon.com
Subject: Re: what is maximum allowed value of autovacuum_freeze_max_age
In-Reply-To: <20120914005635.GA28254@momjian.us>
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