You should use portuguese stemmer. Current tsearch isn't very flexible, but it's
possible.
Try to look on tsearch2 on http://www.sai.msu.su/~megera/postgres/gist/
Diogo de Oliveira Biazus wrote:
>
> Please, can anybody help me?
> I'm trying to use tsearch on a specific database,
> but the texts I'm indexing are in portuguese.
> So, everytime I search for a word with a graphical sign (á, é, ô, etc.)
> I got an empty resultset.
> I've already tested it on an ascii encoded database and on an latin1
> encoded database.
>
> Thanks in advance,
>
--
Teodor Sigaev
teodor@stack.net
