Hmm, seems, it will be useful to add two fuctions:
tsvector filter(tsvector, array_of_weigths) - returns tsvector contains lexemes
with given weights
tsvector setweight(tsvector, weigth, array_of_lexemes) - sets given weight for
given lexemes
Stas Kelvich wrote:
Hello.
There is patch that adds some editing routines for tsvector type.
tsvector delete(tsvector, text)
removes entry from tsvector by lexeme name
set unnest(tsvector)
expands a tsvector to a set of rows. Each row has following columns:
lexeme, postings, weights.
text[] to_array(tsvector)
converts tsvector to array of lexemes
tsvector to_tsvector(text[])
converts array of lexemes to tsvector
Stas Kelvich
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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