Intallation of postgres 9.0.3 gives an error on already installed postgres 8.4 on the same machine

["Prabhjot S. Sheena" <psheena@xxxxxxx>]

I have postgres 8.4 already installed on my machine

 

Now I am trying to install 9.0.3 on the same machine

 

But when I am trying to run rpm -ivh  postgresql90-9.0.3-1PGDG.rhel5.x86_64.rpm        it gives me the following error:

 

error: Failed dependencies:

        postgresql < 7.4 conflicts with postgresql-server-8.4.6-1PGDG.rhel5.x86_64

 

 

Can anyone help with this …..

 

Thanks