От: Dan Langille
Тема: Re: seq scan woes
Дата: ,
Msg-id: 40C4BA1C.26370.498870C7@localhost
(см: обсуждение, исходный текст)
Ответ на: Re: seq scan woes  ("Dan Langille")
Список: pgsql-performance

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seq scan woes  ("Dan Langille", )
 Re: seq scan woes  ("Dan Langille", )
  Re: seq scan woes  ("Dan Langille", )
  Re: seq scan woes  ("Dan Langille", )
   Re: seq scan woes  ("Dan Langille", )
  Re: seq scan woes  (Rod Taylor, )
 Re: seq scan woes  (Rod Taylor, )

On 7 Jun 2004 at 18:49, Dan Langille wrote:

> On 7 Jun 2004 at 16:38, Rod Taylor wrote:
> >       * random_page_cost (good disks will bring this down to a 2 from a
> >         4)
>
> I've got mine set at 4.  Increasing it to 6 gave me a 1971ms query.
> At 3, it was a 995ms.  Setting it to 2 gave me a 153ms query.
>
> How interesting.

The explain analyse: http://rafb.net/paste/results/pWhHsL86.html
--
Dan Langille : http://www.langille.org/
BSDCan - http://www.bsdcan.org/



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