How does PostgreSQL compare to VoltDB?<p>I&#x27;m trying to get a handle on the different databases, and VoltDB sounds exciting, but everyone&#x27;s talking about PostgreSQL. Then there&#x27;s Mnesia which I hear is, as all things Erlang, excellent, though it&#x27;s kinda tied to Erlang.<p>I know it&#x27;s hard to say what&#x27;s best, but what would you say is the best DB for a completely new multilingual project that needs throughput but prioritizes low latency, for example?<p>Also, VoltDB is licensed under AGPL. Does this mean that it can&#x27;t be used in commercial projects? Or is it OK as long as the other components are on different servers or similar?