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

On 2015-06-18 16:36:02 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > On 2015-06-18 16:30:46 -0400, Tom Lane wrote:
> >> This is the same situation as any change whatsoever to tsearch
> >> dictionaries.  The party line on that is that it usually doesn't
> >> matter much, and if it does you can rebuild your indexes.
>
> > I think that's an acceptable answer if the user changes their
> > dictionary, but if we do it for them it's different.
>
> So you're arguing that unaccent.rules is forever frozen, no matter whether
> it's obviously broken or not?

I think it's perfectly sensible to update the rules in master (even if
that has consequences for pg_upgraded databases). I'm just doubtful
about the merits of backpatching changes like this. But I'm not going to
fight hard/any further...