locale and multibyte together in 7.1

I use Postgres 7.1, FreeBSD 4.0

I configure, build and install it with:

./configure --enable-locale --enable-multibyte --with-perl
gmake
gmake install

initdb -E KOI8

The problem is: when database encoding and client encoding are
different then 'locale' features, such as 'upper' etc don't work. When these
two encodings are equal - all is OK.

Example, commets are marked by -->:

tolik=# \l
List of databases
Database | Owner | Encoding
-----------+-------+----------
cmw | cmw | ALT
template0 | tolik | KOI8
template1 | tolik | KOI8
tolik | tolik | ALT --> database 'tolik' has ALT (one of
russian) encoding
(4 rows)

tolik=# \c
You are now connected to database tolik as user tolik.
tolik=# \encoding KOI8 --> I change client encoding to KOI8,
another russian encoding
tolik=# select upper ('выбор'); --> argument is russian word in
lowercase
upper
-------
выбор --> result don't change
(1 row)

tolik=# \encoding ALT --> I set client encoding equals
to DB encoding
tolik=# select upper ('выбор');
upper
-------
ВЫБОР --> Now it works, result is the
same word in uppercase :(
(1 row)

I did'nt observe this feature in 6.* versions of Postgres.

Any ideas? Or help?

--
Anatoly K. Lasareff Email: tolik(at)aaanet(dot)ru
http://tolikus.hq.aaanet.ru:8080 Phone: (8632)-710071