Re: hyrax vs. RelationBuildPartitionDesc

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От Robert Haas
Тема Re: hyrax vs. RelationBuildPartitionDesc
Дата
Msg-id CA+Tgmoa4bdSsT_frTLpESdo0x95RUVJ_HyuTuhqPD=DVBAM_+w@mail.gmail.com
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Ответ на Re: hyrax vs. RelationBuildPartitionDesc  (Heikki Linnakangas <hlinnaka@iki.fi>)
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On Fri, Mar 15, 2019 at 3:32 AM Heikki Linnakangas <hlinnaka@iki.fi> wrote:
> We maintain a free list of AllocSetContexts nowadays, so creating a
> short-lived context should be pretty cheap. Or if it's still too
> expensive, we could create one short-lived context as a child of
> TopMemoryContext, and reuse that on every call, resetting it at the end
> of the function.

Relcache rebuild is reeentrant, I think, so we have to be careful about that.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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