Tom Lane <tgl@sss.pgh.pa.us> writes:
> I believe the meanings of [[:upper:]] and friends depend on the
> database locale,
Indeed they depend on the locale settings, that's why this used to
work.
> and the current code for them probably doesn't work at all in
> multibyte database encodings either. So, what locale and encoding
> are you using?
The locale is es_MX and encoding latin1. (UTF-8 doesn't play very well
with regular expressions :-().
Regards,
Manuel.