UDTF like in hive

Support one row in and multi-column/multi-row out(one-to-many mapping), just like udtf in hive.

The query would like this:

select
  func(c0, c1) as (f0, f1, f2)
from table_name;

c0 and c1 are 'table_name' columns. f0, f1 and f2 are new generated columns.