The function definition usr_SVMSparse includes a concatenated variable expression for the string constant ValueColumn that consists of AttributeValueColumn and Maxnum.
If correlation variables AttributeValueColumn and Maxnum are both specified during function processing, ValueColumn is substituted.
CREATE FUNCTION MAPPING usr_SVMSparse FOR SparseSVMTrainer SERVER TD_SERVER_DB.coprocessor USING InputTable IN TABLE , ModelTable OUT TABLE , IDColumn , SampleIdColumn , AttributeColumn(AttributeNameColumn) , LabelColumn(ResponseColumn), ValueColumn(AttributeValueColumn||'_'||Maxnum), HashProjection , "Hash" , HashBuckets , Cost , Bias , ClassWeights , MaxStep(Maxnum) , Epsilon , Seed , SequenceInputBy ;