原文:Hive Group By 常见错误

Expression not in GROUP BY key xxx 遇到这么一个需求,输入数据为一个ID对应多个name,要求输出数据为ID是唯一的,name随便取一个就可以。 执行以下hive ql语句: SELECT sid, class id FROM table GROUP BY sid 会报错: FAILED: Error in semantic analysis: Line : Ex ...

2018-07-26 12:34 0 2888 推荐指数:

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