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Re: Tsearch2 lexeme position

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On Thu, 12 May 2005, Peter Schmelzer wrote:

Hi,

this is an answer of thread http://archives.postgresql.org/pgsql-general/2003-08/msg00694.php

You say it exist a funktion to fin positions an frequency of lexems for own calculate of an ranking since this time.
But where is the description of this?
May Im to blind but I spend a lot of time to search in internet for this.


http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/docs/tsearch-V2-intro.html
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/docs/tsearch2-guide.html
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/docs/tsearch2-ref.html
has to less examples to see it.
May it is'nt in?..

I need it to serch terms with more than one lexem and later for an ranking for nearst lexems.

ranking functions is already aware of this. See tsearch2.sql in contrib/tsearch2/sql for examples. We don't have API to specify your own
ranking function. Do you really need it ?



greeds Peter Schmelzer

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Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@xxxxxxxxxx, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83

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