1.首先使用hive3数据库
use hive3;
2.修改一下内容
--(1)修改表字段注解和表注解
alter table COLUMNS_V2 modify column COMMENT varchar(256) character set utf8;
alter table TABLE_PARAMS modify column PARAM_VALUE varchar(4000) character set utf8;
--(2)修改分区字段注解
alter table PARTITION_PARAMS modify column PARAM_VALUE varchar(4000) character set utf8 ;
alter table PARTITION_KEYS modify column PKEY_COMMENT varchar(4000) character set utf8;
--(3)修改索引注解
alter table INDEX_PARAMS modify column PARAM_VALUE varchar(4000) character set utf8;