scala> ds.select("id", "person.*").show
+---+----+---+
| id|name|age|
+---+----+---+
|  1|russ| 32|
+---+----+---+


scala> ds.show
+---+---------+
| id|   person|
+---+---------+
|  1|[russ,32]|
+---+---------+