Re: what is maximum allowed value of autovacuum_freeze_max_age

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: <pgsql-admin(at)postgresql(dot)org>,<radovan(dot)jablonovsky(at)replicon(dot)com>
Subject: Re: what is maximum allowed value of autovacuum_freeze_max_age
Date: 2012-09-13 03:13:38
Message-ID: 50510912020000250004A2F9@gw.wicourts.gov
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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.

-Kevin

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