Re: fts, compond words?

On Mon, 5 Dec 2005, Marcus Engene wrote:

>
> I realized from the documentation that I'm not looking for
> compound words after all, I meant "exact phrase".
>
> I can't see how to make rank tell me which results has an
> exact phrase? Like "there must be a occurence of 'new' before
> 'york'" (stemmed not really exact phrase)?

http://www.sai.msu.su/~megera/oddmuse/index.cgi/Tsearch_V2_Notes

Phrase search
This tip is by Mike Rylander

To do phrase searching just add an additional WHERE clause to your query:

SELECT id FROM tab WHERE ts_idx_col @@ to_tsquery('history&lesson')
AND text_col ~* '.*history\\s+lesson.*';

The full-text index will still be used, and the regex will be used to
prune the results afterwards.

>
> Is there something new in rank for pg 8.1?

it has some improving, but not for your case.

Regards,
Oleg
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Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
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