But a yum install complains that it requires systemd-units, which I haven't figure out how to get. The yum command and result:
]# yum -y install postgresql93 postgresql93-server postgresql93-contrib postgresql93-libs
Loaded plugins: priorities, update-motd, upgrade-helper
Repository pgdg93 is listed more than once in the configuration
Repository pgdg93-source is listed more than once in the configuration
8 packages excluded due to repository priority protections
Resolving Dependencies
--> Running transaction check
---> Package postgresql93.x86_64 0:9.3.10-1PGDG.rhel7 will be installed
---> Package postgresql93-contrib.x86_64 0:9.3.10-1PGDG.rhel7 will be installed
---> Package postgresql93-libs.x86_64 0:9.3.10-1PGDG.rhel7 will be installed
---> Package postgresql93-server.x86_64 0:9.3.10-1PGDG.rhel7 will be installed
--> Processing Dependency: systemd-units for package: postgresql93-server-9.3.10-1PGDG.rhel7.x86_64
--> Processing Dependency: systemd-units for package: postgresql93-server-9.3.10-1PGDG.rhel7.x86_64
--> Finished Dependency Resolution
Error: Package: postgresql93-server-9.3.10-1PGDG.rhel7.x86_64 (pgdg93)
Requires: systemd-units
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
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