They in an ad hoc way turned postgres into a key-value store, but in reality they have Cassandra running as a "permacache" in front of it and, in practice, ever

They in an ad hoc way turned postgres into a key-value store, but in reality they have Cassandra running as a "permacache" in front of it and, in practice, everything really just hits Cassandra. It looks like postgres could at some point be phased out. Source: ive hacked at the codebase to produce arxaliv