[paulryanrogers]

> I'd bet that the majority of all apps that depend on Postgres would easily fit in RAM, forever. That could mean one could get rid of SQL, or could apply other simplifications.

My guess is you're correct, yet RAM stored DBs cannot guarantee persistence when things go wrong. Or at least they may introduce data loss if changes aren't fsync'd to durable storage or 2PC with replicas.

[jstimpfle]

It already simplifies some things if data is available directly from RAM. And many stores are read-only or read-mostly.