converting list of multiple list result from stored procedure to data subset

 Hello All,

We are executing a SP which will return  result of 4 lists, each list should cast to different cdt but SP should execute only once. 

I stored the output of stored proc by converting datasubset in PV ,but the data is not coming in data value, i can see...getting [object object][object][object][object][objectobject] like this but startindex, batch size,total count, identifiers have expected values.

We can't define new cdt for the entire SP Output due to some design and data challenges, any thoughts would be appreciated.