From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
---|---|
To: | Greg Stark <gsstark(at)mit(dot)edu> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, 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: | 2010-12-06 14:46:37 |
Message-ID: | Pine.LNX.4.64.1012061745570.12632@sn.sai.msu.ru |
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Lists: | pgsql-hackers |
On Sat, 4 Dec 2010, Greg Stark wrote:
> On Sat, Dec 4, 2010 at 6:07 PM, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> wrote:
>> 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.
>
> I kind of assumed the natural client for KNN-gist was the tsearch full
> text search indexes handling sorting by relevance. For example if I
> search for "Postgres DBA" I should find documents where those words
> appear adjacent first and documents where the two words appear far
> apart in the document sorted further down. Is that not on the list of
> operators supported or planned to be supported?
We'll start thinking about this once we know how to store coordinate
information in index :)
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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