Since there is no 9.1.9 rpm for CentOS, I tried running the 'yum install postgresql91-server' .
That updated my default version from 8.4.12 to 8.4.13. But I really need my working version upgraded.
PGENGINE=/usr/pgsql-9.1/bin
Or is there a way to update
/etc/yum.repos.d/CentOS-Base.repo,
[base] and
[updates] sections to make it know that I'm running postgres 9.1.4 and update that location?