Re: a tsearch2 (8.2.4) dictionary that only filters out stopwords

Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> writes:
> Let's consider one example - removing accents.
> In the past I always recommend people to use regex functions before
> to_tsvector conversion to remove accents, but recently I was noticed that
> such trick doesn't work with headline(). So, the only way is to have
> special dictionary dict_remove_accent before, which works as a filter.

> I don't remember why do we left this for future releases, though.

That would require a system-to-dictionary API change (to be able to
modify the token under inspection), no? So it's certainly something
I'd say is too late for 8.3.

One thought that came to mind is that the option name should be just
"Accept" not "AcceptAll". To me "All" implies that it would accept
*everything* ... including stopwords.

regards, tom lane