Hello,
yes, sure they can return complex types. For example, the functions
collect_list and collect_set return an ArrayType.
On 10 February 2018 at 14:28, kant kodali <kanth...@gmail.com> wrote:
> Hi All,
>
> Can UDAF's return complex types? like say a Map with key as an Integer
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
