Re: KNNGiST for knn-search (WIP)

> changes should be made.  It does also need to be updated to CVS HEAD,
> as it no longer applies cleanly.

The reason was a point_ops patch, some OIDs become duplicated. Both attached 
patches are synced with current CVS.
>
> I tend to feel that we should probably target this for 8.6 rather than
> 8.5.  We are down to the last CommitFest, and while we don't have a
> nailed-down criterion for what is "too big" for the last CommitFest of
> a given release cycle, this is definitely a big, invasive patch.  This

Is we really have rule to accept only small patches at last CommitFest? May be, 
FixFest name is better for it? :)

Actually, it's easy to split patch to several ones:
- contrib/pg_trgm
- contrib/btree_gist
- knngist itself
- planner changes

And knngist depends on rbtree and point_ops patch, in summary 6 dependent 
patches. Is it more comfortable?

-- 
Teodor Sigaev                                   E-mail: teodor@sigaev.ru
                                                    WWW: http://www.sigaev.ru/