Re: VARCHAR -vs- CHAR: huge performance difference?

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От Olivier Hubaut
Тема Re: VARCHAR -vs- CHAR: huge performance difference?
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Msg-id opr9qaj9yp94ope3@olivier.amaze.ulb.ac.be
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Ответ на Re: VARCHAR -vs- CHAR: huge performance difference?  ("C. Bensend" <benny@bennyvision.com>)
Ответы Re: VARCHAR -vs- CHAR: huge performance difference?  ("C. Bensend" <benny@bennyvision.com>)
Re: VARCHAR -vs- CHAR: huge performance difference?  ("Scott Marlowe" <smarlowe@qwest.net>)
Список pgsql-admin
On Wed, 16 Jun 2004 09:37:58 -0500 (CDT), C. Bensend
<benny@bennyvision.com> wrote:

>
>> You might want to look into the autovacuum daemon, and / or increasing
>> fsm settings to be large enough to hold all the spare tuples released by
>> vacuuming.
>
> IIRC, the autovacuum stuff was added in 7.4, which I'm not running (yet).
> An upgrade to 7.4.3 might be prudent for me, while the database is still
> small.
>
> Benny
>
>

By the way, be carefull. The pg_autovacuum is not good enough for being
using as the only way for cleaning the database, especially if you have a
lot of update and delete on the same tables.


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