Amazon QuickSight announces the availability of fine-grained access control for AWS Identity and Access Management (IAM) permissioned resources (specifically, Amazon S3, Amazon Athena and Amazon RDS/Redshift database discovery. Fine-grained access control allows administrators of an Amazon QuickSight account to control authors’ default access to connected AWS resources and use IAM policies to scope down access permissions so specific authors can only access specific items within the AWS resources. 

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/06/amazon-quickSight-now-supports-fine-grained-access-control-over-amazon-S3-and-amazon-athena/