BUG #1129: select query returns multiple results for a japanese characters

The following bug has been logged online:

Bug reference:      1129
Logged by:          prasvenk

Email address:      prasvenk@yahoo.com

PostgreSQL version: 7.4

Operating system:   rehat linux 9

Description:        select query returns multiple results for a japanese
characters

Details:

Hi,
I tried the following query on a windows 2000 machine with cywin and
postgres 7.4

select * from colour_master where colour_name='シンギン ';

this returned one row which is correct.

i passed the same query to a same database but on a linux machine with
postgres 7.4.2 it returned me around 5 rows which is not correct .

these are the rows which were returned.
オレンジ
もみじ赤
もみじ黄
赤土白地
シンギン

Any kind of help will the appreciable.

Thanks in advance.
Regards,
Prasvenk