| From: | "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> |
|---|---|
| To: | <robertmhaas(at)gmail(dot)com>,<Marek(dot)Balgar(at)seznam(dot)cz> |
| Cc: | <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ts_rank |
| Date: | 2011-05-20 02:42:32 |
| Message-ID: | 4DD58EC8020000250003D997@gw.wicourts.gov |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Robert Haas wrote:
> Mark wrote:
>> Could somebody explain me on which methods is based ts_rank and
>> how it works? I would appreciate some articles, if exist.
> As far as I can tell, our documentation contains no useful
> information on this topic whatsoever. :-(
There's some potentially useful information here:
http://www.postgresql.org/docs/9.0/interactive/textsearch-controls.html#TEXTSEARCH-RANKING
Although I don't know if it addresses Mark's question very well.
Personally, I wonder how relevant ts_rank will be after knn-giswt
is out....
-Kevin
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