Examples of join, semi join and outer join in hive

For example:

Hive> select * From zz0;
111111
222222
888888
Hive> select * From zz1;
111111
333333
444444
888888

Hive> select * From zz0 join zz1 on zz0.uid = zz1.uid;
111111 111111
888888 888888
Hive> select * From zz0 left Outer Join zz1 on zz0.uid = zz1.uid;
111111 111111
222222 null
888888 888888
Hive> select * From zz0 right Outer Join zz1 on zz0.uid = zz1.uid;
Null
111111 111111
Null 333333
Null 444444
888888 888888
Hive> select * From zz0 full outer join zz1 on zz0.uid = zz1.uid;
Null
111111 111111
222222 null
Null 333333
Null 444444
888888 888888
Hive> select * From zz0 left semi join zz1 on zz0.uid = zz1.uid;
111111 111111
888888 888888