Low Description
The problem can be reproduced as follow:
cqlsh:test2> create type myType (a int); cqlsh:test2> create table myTable (a int primary key, b frozen<myType>); cqlsh:test2> insert into myTable (a, b) values (1, {a: 1}); cqlsh:test2> select * from myTable; a | b ---+-------- 1 | {a: 1} (1 rows) cqlsh:test2> alter type myType add b int; cqlsh:test2> insert into myTable (a, b) values (2, {a: 2, b :2}); cqlsh:test2> select * from myTable; a | b ---+-------- 1 | {a: 1} 2 | {a: 2} (2 rows)
If cqlsh is then restarted it will display the data properly.
cqlsh:test2> select * from mytable;
a | b
---+-----------------
1 | {a: 1, b: null}
2 | {a: 2, b: 2}
(2 rows)