Possible Duplicate:
How to install Postgres on LINUX with two verions?
I've installed multiple PostgreSQL version(9.0.3, 8.4.6) on same server .
I've changed PORT also.
I used to run:
psql -h localhost -p 5437 -U postgres8 -d postgres.
It is working fine. But showing old version (8.3) instead of 8.4.
what is my mistake? Please help me...