I just upgraded my MacMini Server from Lion Server to Mountain Lion using OS X Server. I am having the same problem with PostgreSQL that I did last year when I first instal
If you have the above problem but you have upgraded from Yosemite, then a different approach is needed as the upgrade solution can destroy some files. More details are at `pg_tblspc` missing after installation of latest version of OS X (Yosemite or El Capitan).