Hi Devrim/Jeff,
I'm getting a 404 error for this link:http://yum.postgresql.org/9.3/redhat/rhel-7-x86_64/pgdg-redhat93-9.3-2.noarch.rpmfrom this page:http://yum.postgresql.org/repopackages.php
Is this particular RPM not available yet?
Thanks,Lei