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Hi,

I'm trying to implement aggregate function on multiple columns (as an
arguments) like:

myaggFunc(col1,col2)

And I would want to return the results by each column after applying
aggregate operation.

The output would be something like:

col1, count ( aggregate of all records for col1)
col2, count

Inorder to return the results in the above format, what is the return data
type (of the method) should I have to choose?

Thanks