[ https://issues.apache.org/jira/browse/HIVE-24038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
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 -- This message was sent by Atlassian Jira (v8.3.4#803005)