Re: polyphase merge?

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От Simon Riggs
Тема Re: polyphase merge?
Дата
Msg-id 1233760266.4500.296.camel@ebony.2ndQuadrant
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Ответ на Re: polyphase merge?  (Greg Stark <stark@enterprisedb.com>)
Ответы Re: polyphase merge?
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On Wed, 2009-02-04 at 10:55 +0000, Greg Stark wrote:
> Is this basically the same as our current algorithm but without
> multiplexing the tapes onto single files? I have been wondering
> whether we multiplex the tapes any better than filesystems can lay out
> separate files actually.

I don't think you'll be able to do that more efficiently than we already
do. Read the top of tuplesort.c

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support



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