> currently, upper/lower does not work with 2+ byte unicode
> characters, on any OS under the C locale.
Btw,...
There are only 15 cases in the utf8 repertoire that depends on locale, these are the only cases where pg should report:
ERROR: invalid multibyte character for locale
HINT: The server's LC_CTYPE locale is probably incompatible with the database encoding.
When doing a select upper/lower (col)
All others should work just fine.
The error should probably also be changed to a warning, and just return the offending character unmodified.
... John