Seems a bit pedantic. The memtable is (when fully flushing writes) a derivative of the WAL. Or vice-versa if you like. They hold equivalent data, organized diff

Seems a bit pedantic. The memtable is (when fully flushing writes) a derivative of the WAL. Or vice-versa if you like. They hold equivalent data, organized differently (yes yes modulo tombstones). Anyway you're right, I was being lazy in not writing out memtable explicitly.