Re: Modyfication Sort Merge Join Alghoritm

On Mon, Aug 12, 2013 at 08:16:59PM -0700, Jeff Janes wrote:
> 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.

There's a paper that includes the phrase "g-join" from 2011 here:

http://wwwlgis.informatik.uni-kl.de/cms/fileadmin/users/haerder/2011/JoinAndGrouping.pdf

Is that it?

Cheers,
David.
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