From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Teodor Sigaev <teodor(at)sigaev(dot)ru>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: knngist - 0.8 |
Date: | 2010-12-04 18:07:50 |
Message-ID: | Pine.LNX.4.64.1012042104330.12632@sn.sai.msu.ru |
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Lists: | pgsql-hackers |
Thanks to all for patience !
We'll sync contrib/btree_gist with current API. Also, we're thinking
about distance for ltree, boxes, circles. I'm not sure about polygons, though.
So, we'll have rather complete set of knn-fied data types.
Oleg
On Sat, 4 Dec 2010, Tom Lane wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> 2010/9/13 Teodor Sigaev <teodor(at)sigaev(dot)ru>:
>>> [updated patch]
>
>> I realize I'm repeating myself, but... this patch needs
>> documentation. It's not optional.
>
> I've applied all of this, and written documentation for all of it,
> except for the contrib/btree_gist additions which still need to be
> redone for the revised API (and then documented!). My patience ran out
> somewhere around there, so I'm marking that part as returned with
> feedback.
>
> What we have at this point (pending contrib/btree_gist fixes) is
> nearest-neighbor searching capability for point columns. And
> trigram-based nearest-neighbor for text strings, if you install
> contrib/pg_trgm. That doesn't seem like a lot of return for the
> amount of work that went into it. Are there plans to add KNN support
> for any other standard types?
>
> regards, tom lane
>
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru)
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
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