PostgreSQL - Set path not working

I have just installed PostgreSQL enterprise DB.. The installation I assumed completed successfully. I open terminal then trying to set path for user postgres but it seems it does not reflected with command given.


-bash-4.1$ export PGDATA=/opt/PostgresPlus/9.2AS/data
-bash-4.1$ echo $PATH
/usr/lib/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin
-bash-4.1$
-bash-4.1$
-bash-4.1$
-bash-4.1$ exit
logout
[root@redhatTest ppasmeta-9.2.1.3-linux]#
[root@redhatTest ppasmeta-9.2.1.3-linux]# ps -ef | grep postgres
postgres 10734     1  0 00:52 ?        00:00:00 /opt/PostgresPlus/9.2AS/bin/edb-postgres -D /opt/PostgresPlus/9.2AS/data
postgres 10735 10734  0 00:52 ?        00:00:00 postgres: logger process                                                
postgres 10737 10734  0 00:52 ?        00:00:00 postgres: checkpointer process                                          
postgres 10738 10734  0 00:52 ?        00:00:00 postgres: writer process                                                
postgres 10739 10734  0 00:52 ?        00:00:00 postgres: wal writer process                                            
postgres 10740 10734  0 00:52 ?        00:00:00 postgres: autovacuum launcher process                                  
postgres 10741 10734  0 00:52 ?        00:00:00 postgres: stats collector process                                      
postgres 10883     1  0 00:52 ?        00:00:00 /opt/PostgresPlus/9.2AS/bin/pgagent -l 1 -s /var/log/ppas-agent-9.2.log hostaddr=localhost port=5432 dbname=postgres user=postgres
postgres 10884 10734  0 00:52 ?        00:00:00 postgres: postgres postgres ::1[40404] idle                            
postgres 12028     1  0 00:54 ?        00:00:00 /opt/PostgresPlus/9.2AS/bin/pgbouncer -d /opt/PostgresPlus/9.2AS/share/pgbouncer.ini
postgres 13629     1  0 01:05 ?        00:00:05 /opt/PostgresPlus/9.2AS/jre/bin/java -XX:-UsePerfData -Xms64m -Xmx256m -Djava.library.path=/opt/PostgresPlus/9.2AS/bin -Djava.awt.headless=true -jar edb-repserver.jar pubserver 9051
postgres 13667 10734  0 01:05 ?        00:00:00 postgres: postgres xdb 127.0.0.1[35644] idle                            
postgres 13668 10734  0 01:05 ?        00:00:00 postgres: postgres xdb 127.0.0.1[35645] idle                            
postgres 13687     1  0 01:05 ?        00:00:05 /opt/PostgresPlus/9.2AS/jre/bin/java -XX:-UsePerfData -Djava.awt.headless=true -jar edb-repserver.jar subserver 9052
postgres 13723 10734  0 01:05 ?        00:00:00 postgres: postgres xdb 127.0.0.1[35650] idle                            
postgres 13724 10734  0 01:05 ?        00:00:00 postgres: postgres xdb 127.0.0.1[35651] idle                            
root     13981  8548  0 01:16 pts/0    00:00:00 grep postgres
[root@redhatTest ppasmeta-9.2.1.3-linux]# export PGDATA=/opt/PostgresPlus/9.2AS/data
[root@redhatTest ppasmeta-9.2.1.3-linux]# echo $PATH
/usr/lib/qt-3.3/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin:/root/bin