Handling schema changes
If you change a table in Cassandra after creating an external table in Hive that maps to that table in Cassandra, a runtime exception can occur. Use a workaround when changes that occur to the table in Cassandra get out of synch with the mapped table in Hive.
If you change a table in Cassandra, using CQL for example, after creating an external table in Hive that maps to that table in Cassandra, a runtime exception can occur. Changes that occur to the table in Cassandra get out of synch with the mapped table in Hive. The workaround is: