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https://issues.apache.org/jira/browse/HIVE-24038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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bianqi resolved HIVE-24038.
---------------------------
    Resolution: Invalid

> Hive更改表中字段数据类型导致的异常
> -------------------
>
>                 Key: HIVE-24038
>                 URL: https://issues.apache.org/jira/browse/HIVE-24038
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Zuo Junhao
>            Priority: Major
>
> 一张表有两个字段,在建表时(内部表)定义为int类型(user_role,label_type),在向该表中insert数据时,这两个字段是string类型的,由于Hive的读时校验模式,不会报错,但是在再次select的时候,对应的字段会是null;此时我
>  alter table xxx chanage column xxx xxx 
> string后,再次向表中insert了一遍数据,再次select的时候,会报以下异常:Failed with exception 
> java.io.IOException:java.lang.ClassCastException: org.apache.hadoop.io.Text 
> cannot be cast to org.apache.hadoop.io.IntWritable



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