Re: Modyfication Sort Merge Join Alghoritm - Mailing list pgsql-hackers

From Jeff Janes
Subject Re: Modyfication Sort Merge Join Alghoritm
Date
Msg-id CAMkU=1yzKuDa9myroeokQ_vyn-v0X+O6O67+CgCdZ81=Fc2vjA@mail.gmail.com
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In response to Modyfication Sort Merge Join Alghoritm  (tubadzin <tubadzin@o2.pl>)
Responses Re: Modyfication Sort Merge Join Alghoritm  (David Fetter <david@fetter.org>)
List pgsql-hackers
On Mon, Aug 12, 2013 at 1:31 PM, tubadzin <tubadzin@o2.pl> wrote:
> Hi users.
> I want to sure, that is no this implementation in Postgresql:
> For Sorte Merge Join Alghoritm:
>  If the large input arrives sorted,
> g-join joins its pages with the buffer pool contents by strictly
> increasing join key values and the join output is also strictly
> sorted.

What is a "g-join"?  If you have a reference to that algorithm, it
would help clarify what you are asking.

Cheers,

Jeff



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