| From: | Anj Adu <fotographs(at)gmail(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | Devrim GÜNDÜZ <devrim(at)gunduz(dot)org>, pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: XID wraparound in 8.4 |
| Date: | 2009-08-11 22:42:24 |
| Message-ID: | f2fd819a0908111542j76a4afbbr261f3e6a039cd790@mail.gmail.com |
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| Lists: | pgsql-admin |
So..we dont have to check the last XID value per table ?
we have a very high volume data warehouse for which autovacuum is not
suitable due to performance reasons. Can we track the last XID on a
per-table basis ?
2009/8/11 Alvaro Herrera <alvherre(at)commandprompt(dot)com>:
> Devrim GÜNDÜZ escribió:
>
>> FWIW, PostgreSQL 8.3+ will start autovacuum (even if it is turned off)
>> if a database is approaching XID wraparound, and get rid of the
>> problem-- so you don't actually need to check it.
>
> 8.1 does it too. The main difference is that 8.1 will run a
> database-wide vacuum, whereas in 8.2 and up it only vacuum tables that
> have not been vacuumed recently.
>
> --
> Alvaro Herrera http://www.CommandPrompt.com/
> The PostgreSQL Company - Command Prompt, Inc.
>
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