BUG #5547: not able to connect to postgres through the oracle using Linux ODBC driver for Postgres

The following bug has been logged online:

Bug reference:      5547
Logged by:          Hemanth
Email address:      hxkuma5@qwest.com
PostgreSQL version: 8.4
Operating system:   Linux
Description:        not able to connect to postgres through the oracle using
Linux ODBC driver for Postgres
Details:

I am able to install Linux ODBC driver for Postgres successfully. i am able
to connect to the postgres using demo in the driver.
but not able to connect to the postgres using the same username and password
from DB LINK created b/w postgres and oracle .

ERROR at line 1:
ORA-01017: invalid username/password; logon denied [DataDirect][ODBC
PostgreSQL Wire Protocol driver][PostgreSQL]FATAL: role "AIP"
does not exist(File miscinit.c;Line 382;Routine InitializeSessionUserId
[DataDirect][ODBC PostgreSQL Wire Protocol driver]Socket closed.
ORA-02063: preceding 2 lines from APPLES