Re: 8.1 release notes

OK, updated.  When I read "migrate" I thought "move".

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Tom Lane wrote:
> Michael Paesold <mpaesold@gmx.at> writes:
> > These I don't really understand:
> > - Improve rtree index capabilities and performance (Neil)
> > - Replace rtree index code with code from /contrib/rtree_gist (Tom)
> 
> Not sure how Bruce got the latter out of this commit message:
> 
>     Migrate rtree_gist functionality into the core system, and add some
>     basic regression tests for GiST to the standard regression tests. 
> 
> All that's really happened is that GiST actually has a couple of
> opclasses in the core system now, whereas previously they were all
> contrib (meaning that GiST was dead weight in a standard installation).
> 
> It's also now true that everything you can do with the standard rtree
> opclasses, you can do with standard GiST opclasses.
> 
> There was some talk of obsoleting rtree further down the road, but it
> isn't happening in 8.1.  If no serious bugs crop up in all the new GiST
> work Teodor and Oleg did, we might consider obsoleting rtree in 8.2.
> 
>             regards, tom lane
> 

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