GetFieldInfo method in search service doesn't include category attribute for the given data collecti

Cheranthian_Muthuvinayagam

I am looking for a sample code (java/c#) that use category attribute in SearchService.SingleSearchRequest ResultSetSpec.

 

GetFieldInfo method doesn't include the retrievable/searchable field name for the category attributes, 

 

The sample http://knowledge.opentext.com/knowledge/cs.dll/Open/15633041 only uses the system attributes.

 

If I need to use category attribute in  ResultSetSpec and ResultTransformationSpec, should i use the attribute id...