Re: Load Distributed Checkpoints, take 3

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От Heikki Linnakangas
Тема Re: Load Distributed Checkpoints, take 3
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Msg-id 468140F6.5010200@enterprisedb.com
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Ответ на Re: Load Distributed Checkpoints, take 3  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Load Distributed Checkpoints, take 3  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane wrote:
> Heikki Linnakangas <heikki@enterprisedb.com> writes:
>> Tom Lane wrote:
>>> (Note that COPY per se will not trigger this behavior anyway, since it
>>> will act in a limited number of buffers because of the recent buffer
>>> access strategy patch.)
>
>> Actually we dropped it from COPY, because it didn't seem to improve
>> performance in the tests we ran.
>
> Who's "we"?  AFAICS, CVS HEAD will treat a large copy the same as any
> other large heapscan.

Umm, I'm talking about populating a table with COPY *FROM*. That's not a
heap scan at all.

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

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