AFAICT, this actually isn't running SQL against data in DynamoDB. Rather, it syncs the the data in DynamoDB with their [Rockset's] own proprietary database, and

AFAICT, this actually isn't running SQL against data in DynamoDB. Rather, it syncs the the data in DynamoDB with their [Rockset's] own proprietary database, and runs SQL against that data. It's effectively the same but technically quite different.