【hive修改元数据库字符集】

1.在mysql中元数据库下执行以下SQL

alter table COLUMNS_V2 modify column COMMENT varchar(256) character set utf8;
alter table TABLE_PARAMS modify column PARAM_VALUE mediumtext character set utf8;
alter table PARTITION_PARAMS  modify column PARAM_VALUE mediumtext character set utf8;
alter table PARTITION_KEYS  modify column PKEY_COMMENT mediumtext character set utf8;
alter table INDEX_PARAMS  modify column PARAM_VALUE mediumtext character set utf8;

2.在hive-site.xml添加

<property>
        <name>javax.jdo.option.ConnectionURL</name>
        <value>jdbc:mysql://hadoop102:3306/metastore?useSSL=false&amp;useUnicode=true&amp;characterEncoding=UTF-8</value>
</property>