While you have a good point, I need to say that traditional databases and distributed databases differ in some points. For instance in YDB you can connect to any node of a database, it means that you need some kind of balancing (server side or client side). I'm not talking about SQL dialect right now, but rather how you connect to database and how you handle connection losses or node overloads. YDB SDKs have client side balancing feature to distribute load evenly across database nodes.