CLONE - ALTER TABLE conversion to columnstore fails

mysql> create table t2(c1 int);
Query OK, 0 rows affected (0.01 sec)

mysql> alter table t2 engine=columnstore;
ERROR 1178 (42000): The storage engine for the table doesn't support The syntax or the data type(s) is not supported by Columnstore. Please check the Columnstore syntax guide for supported syntax or data types.