system environment/base
- pgdg-centos - PostgreSQL 9.1.X PGDG RPMs for CentOS - Yum Repository Configuration
- pgdg-centos91 - PostgreSQL 9.1.X PGDG RPMs for CentOS - Yum Repository Configuration
- pgdg-redhat - PostgreSQL 9.1.X PGDG RPMs for RHEL - Yum Repository Configuration