Tom Lane <tgl@xxxxxxxxxxxxx> 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.