Defined in github.com/aws/aws-sdk-go/service/rds/api.go
A value that indicates that the DB cluster should be associated with the specified option group. Changing this parameter does not result in an outage except in the following case, and the change is applied during the next maintenance window unless the ApplyImmediately parameter is set to true for this request. If the parameter change results in an option group that enables OEM, this change can cause a brief (sub-second) period during which new connections are rejected but existing connections are not interrupted.
Permanent options cannot be removed from an option group. The option group cannot be removed from a DB cluster once it is associated with a DB cluster.