Hi All, Can UDAF's return complex types? like say a Map with key as an Integer and the value as an Array of strings?
For Example say I have the following *input dataframe* id | name | amount ------------------------- 1 | foo | 10 2 | bar | 15 1 | car | 20 1 | bus | 20 and my *target/output data frame* is id | my_sum_along_with_names ------------------------------------------------------------- 1 | Map(key -> 50, value -> [foo, car, bus]) 2 | Map(key -> 15, value -> [bar]) I am looking for a UDAF solution so I can use it in my raw sql query. Thanks!
