Re: [PATCHES] Bitmapscan changes

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От Heikki Linnakangas
Тема Re: [PATCHES] Bitmapscan changes
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Msg-id 45FE6318.8080204@enterprisedb.com
обсуждение исходный текст
Ответ на Re: [PATCHES] Bitmapscan changes  (Grzegorz Jaskiewicz <gj@pointblue.com.pl>)
Ответы Bitmapscan changes - Requesting further feedback  ("Joshua D. Drake" <jd@commandprompt.com>)
Re: [PATCHES] Bitmapscan changes  (Grzegorz Jaskiewicz <gj@pointblue.com.pl>)
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Дерево обсуждения 
Grzegorz Jaskiewicz wrote:
> 
> On Mar 16, 2007, at 10:12 PM, Heikki Linnakangas wrote:
>> You'll obviously need to run it with the patch applied. I'd suggest to 
>> enable stats_block_level to see the effect on buffer cache hit/miss 
>> ratio.
> 
> groupeditems-42-pghead.patch.gz is enough, or it needs 
> maintain_cluster_order_v5.patch ??

No, it won't make a difference unless you're inserting to the table, and 
the inserts are not in cluster order.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com

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