进城务工人员小梅在Hive中使用ALTER修改列类型时长餐刚看到如下的错误：
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Error: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. Unable to alter table. The following columns have types incompatible with the existing columns in their respective positions : CreateTimestamp (state=08S01,code=1) |
问题在于在Hive中执行ALTER列操作时只能按照如下的强制类型转换规则进行：
Hive ALTER列类型规则矩阵
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