Any idea what this means?
hive> show tables; FAILED: Error in metadata: javax.jdo.JDODataStoreException: Error(s) were found while auto-creating/validating the datastore for classes. The errors are printed in the log, and are attached to this exception. NestedThrowables: java.sql.SQLSyntaxErrorException: In an ALTER TABLE statement, the column 'DB_LOCATION_URI' has been specified as NOT NULL and either the DEFAULT clause was not specified or was specified as DEFAULT NULL. FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask
