BUG #5546: not able to connect to postgres through the oracle using

The following bug has been logged online:

Bug reference: 5546
Logged by: Hemanth
Email address: hxkuma5(at)qwest(dot)com
PostgreSQL version: 8.4
Operating system: Linux
Description: not able to connect to postgres through the oracle using
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