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Re: tracking last_autovacuum

From: Stefano Nichele <stefano(dot)nichele(at)gmail(dot)com>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: tracking last_autovacuum
Date: 2008-12-18 13:13:41
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
Yes, i could do that but it seems simpler (to me) with a trigger than 
looking at the recent changes records and store them somewhere.


Alvaro Herrera wrote:
> Stefano Nichele escribió:
>> Hi All,
>> in  pg_stat_all_tables, the fields last_autovacuum, last_autoanalyze are  
>> updated any time autovacuum vacuums a table.
>> I would like to keep an history of these activities in order to see when  
>> and how many times any single table is vacuumed.
>> Is there any features that can help me ? (I'm using postgres 8.2.9)
>> What about creating a trigger on pg_stat_all_tables and storing the  
>> required info in another table (like autovacuum_history) ?
> I guess you could run a query once every autovacuum_naptime and have it
> save aside all those entries from pg_stat_all_tables that have recent
> dates into a history table.

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Subject: Re: tracking last_autovacuum
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