Citus AFAIK doesn’t have scale to zero. Aurora serverless does. Citus gives you horizontal write scalability, Aurora Serverless doesn’t. (There is a preview of

Citus AFAIK doesn’t have scale to zero. Aurora serverless does. Citus gives you horizontal write scalability, Aurora Serverless doesn’t. (There is a preview of multi-master Aurora for MySQL but I think that’s more of an HA active/active feature and not sharding — which Citus does) Citus is available hosted in Azure (Hyperscale), hosted on AWS, and run-it-yourself (a couple flavors). Obviously Aurora serverless is only in AWS. Microsoft acquired Citus last January.