AWS上是否有完全托管的SQL数据库，如果没有，为什么不呢？

As far as I am aware there is no DynamoDB equivalent database in transnational SQL land which is fully managed, as in there doesn't exist an SQL database which is implemented with a server-less architecture, every SQL database on AWS right now needs to be deployed to an EC2 instance.As far as I am aware there is no DynamoDB equiv