BUG #5221: errors converting string to utf8

The following bug has been logged online:

Bug reference:      5221
Logged by:          DM
Email address:      dmedri@ciseonweb.it
PostgreSQL version: 8.2 / 8.4
Operating system:   linux ubuntu 9.10
Description:        errors converting string to utf8
Details:

I'm using 2 version of pg (8.2, 8.4).

On 8.2:

select convert('Vall\xe9e','LATIN1','UTF8');

convert this string without any kind of error.


On 8.4:

select convert('Vall\xe9e','LATIN1','UTF8');

i receive these messages:

WARNING:  nonstandard use of escape in a string literal
RIGA 1: select convert('Vall\xe9e','LATIN1','UTF8');
                       ^
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
ERROR:  invalid byte sequence for encoding "UTF8": 0xe965
HINT: This error can also happen if the byte sequence does not match the
encoding expected by the server, which is controlled by "client_encoding".


client charset: utf8
server charset: utf8