Yes and no. Extending the UDF framework might be hard, but I think implementing a built-in split() is feasible. We already have a built-in Expr that returns an array type to implement unnest.
On Mon, Jun 19, 2017 at 6:22 AM, Vincent Tran <vtt...@cloudera.com> wrote: > This request appears to be blocked by the current UDF framework's > limitation. > As far as I can tell, functions can still only return simple scalar types, > right? >
