Agreed. Scaling out databases is never something you want to do, particularly for Postgres. But it's something you're less likely to need if you structure your

Agreed. Scaling out databases is never something you want to do, particularly for Postgres. But it's something you're less likely to need if you structure your data, in an RDBMS. If you know your SQL, then optimizations should be preferred before scaling out. Not just because you need to, but because it can improve user experience (server response latency).