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tsearch2: word position


  • From: Markus Schiltknecht <markus(at)bluegap(dot)ch>
  • To: PostgreSQL General <pgsql-general(at)postgresql(dot)org>
  • Subject: tsearch2: word position
  • Date: Wed, 21 Feb 2007 16:07:46 +0100
  • Message-id: <45DC6042(dot)5030005(at)bluegap(dot)ch>

Hi,

I'm fiddling with to_tsvector() and parse() from tsearch2, trying to get the word position from those functions. I'd like to use the tsearch2 parser and stemmer, but I need to know the exact position of the word as well as the original, unstemmed word.

What I came up with so far is pretty ugly:

SELECT
  (parse('my test text')).tokid,
  (parse('my test text')).token,
  strip(to_tsvector((parse('my test text')).token));

And this only tells me a word position, not a character or byte position within the string. Is there a way to get this information from tsearch2?

Regards

Markus



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