Hi, everyone,

I wrote some userdefinedFunctions (UDFs) in a schema file below Mondrian 4.0 but found it is very hard to understand how to execute it's calling as for UDF function, could anyone explain a lot for this? or is there some diagrams to help get through. Indeedly it became confused for a long time. Thanks.
By the way, the schema file was used in saiku.