public IFeatureDataReader ExecuteFeatureQuery(FeatureSpatialExpression query)
 {
     throw new NotImplementedException();
 }
 public void ExecuteFeatureQuery(FeatureSpatialExpression query, FeatureDataTable table)
 {
     throw new NotImplementedException();
 }
 public IAsyncResult BeginExecuteFeatureQuery(FeatureSpatialExpression query, FeatureDataTable table,
                                              AsyncCallback callback, object asyncState)
 {
     throw new NotImplementedException();
 }