The actual advantage: You never have to even think about licensing ever again. So instead of a giant SPOF database server, you can give every app its own clus

The actual advantage: You never have to even think about licensing ever again. So instead of a giant SPOF database server, you can give every app its own clustered pair or triple of PG servers. (PG clustering is sorta painful to get really robust, needs some work here.) And if someone says "but it's unsupported" ... every third-party Oracle support shop is desperate to grab some PG support business. They can tell which way the wind is blowing. There are probably hypothetical use cases where Oracle is a better fit (it really is a very effective and powerful database), but these are fewer and fewer.