What the article fails to mention is that you can use as a disk backed in memory database/cluster. In a replicaset you can have e.g. 2 in memory nodes and 3 dis

What the article fails to mention is that you can use as a disk backed in memory database/cluster. In a replicaset you can have e.g. 2 in memory nodes and 3 disk backed nodes. Postgres doesn't have that. I wish it did. Mysql has in memory tables. Postgres doesn't. If I'm wrong please correct me.