Greetings,
As far as I use the txtidx data structure in conjunction with gist indexing
to make a word indexing of a very large UNICODE db, I've implemented a PostgreSQL
function that uses libunac to unaccent TEXT fileds.
The resulting text is in UTF-8, but you can modify it in the sources with
an appropriate value (using iconv charset names).
Get libunac from: http://www.nongnu.org/unac/ (it uses iconv)
Extract the archive, compile it (make). Move pg_unac.so to your postgresql
shared libraries dir.
Link it in postgresql:
CREATE FUNCTION unac(TEXT) RETURNS TEXT AS 'path_to_pg_unac.so' LANGUAGE
C;
What about integrating unaccent libraries directly in tsearch? It is useful
for french search engines (for instance).
Bye.
Nhan NGO DINH
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