If the data couldn’t be fully sharded (I.e. independent db’s and replicas), I’d personally choose Cockroach DB for this, I admittedly haven’t had the pleasure o

If the data couldn’t be fully sharded (I.e. independent db’s and replicas), I’d personally choose Cockroach DB for this, I admittedly haven’t had the pleasure of using Cockroach, but I’ve seen alternative approaches and knowing what I wouldn’t do again…