Re: BUG #13440: unaccent does not remove all diacritics

> No.  They're not broken in a fundamental way, it's just that certain
> search terms no longer find document words you might think they should
> match.  Oleg and Teodor argued back at the beginning of the FTS stuff
> that this sort of thing wasn't critical, and I agree --- but we shouldn't
> change the mapping in minor releases.

Agree. And update for FTS index isn't a pg_upgrade task, because unaccent
dictinary is a filtering dictionary and subsequent dictionaries might change a
recognition of word. So, pg_upgrade without knowledge of FTS configuration can
not do update by correct way.

--
Teodor Sigaev                                   E-mail: teodor@sigaev.ru
                                                    WWW: http://www.sigaev.ru/