Query relationship field query in External object

Hi All,
We are using external objects in sales force.

We have a external object CallCenters that have a lookup field “CostCenterID__c” to “Call Center” exteral Object.

In skuid i created a model that will query CostCenterID__r.Cost_Center_name__c field.

But when we are running page then its throwing that error :
External Object Error
We encountered an unexpected error. 
Try again later, or contact your administrator, who can verify the external data source settings and server availability. Error received: Not implemented

Is there any way in skuid to query relationship field in external object also like we used in Custom object as follows:
Account.OwnerId OR Account.Fax etc?