参考：

https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-AlterTable/Partition/Column
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-AlterTable

要点：

ALTER TABLE test_db.test_table SET TBLPROPERTIES ('prot_name' = 'value');