The following bug has been logged on the website:
Bug reference: 12542
Logged by: Renzo Orsini
Email address: orsini@unive.it
PostgreSQL version: 9.3.5
Operating system: Mac OS X
Description:
When lower and upper are applied to UTF8 strings with accented letters, they
have an incorrect behaviour, for instance, upper('Autorità ') returns
'AUTORITÃ ' and not 'AUTORITÃ' as it should. Similarly, lower('AUTORITÃ')
returns lower('autoritÃ').