DataCubeService.discoverColumns Method
        
 Automatically discovers the mapping rules for flattening the data in the specified element.
 
         
        Parameters
        
            - id
            
 
            - 
                
Type: String
The ID of the data cube the flatten transform is in. 
            - transformId
            
 
            - 
                
Type: String
The ID of the flatten transform. 
            - elementId
            
 
            - 
                
Type: String
The ID of the element that contains the data to be flattened and discovery should be run on. 
        
        Return Value
        
Type: jQuery.Promise
        
Value: dundas.data.FlattenMappingsInfo
        
A promise object that is resolved when the call is complete.
 If successful, a dundas.data.FlattenMappingsInfo is returned.