Hi all, I am trying to use Polybase in SQL Server 2019 to access an external Cache/IRIS Database. I have followed the initial steps of enabling Polybase, creating a Database, DB scoped credential and then an External Data Source. These steps have not caused any issues and appear to be successful, I am using the same DSN we use for a Linked Server connection that works normally. I am running into an Error when trying to Create an External Table. The error is a generic Native Code 469 "Driver Not Capable".