MaxCompute2.0 Outputer和Extractor有什么关系，是干什么的，谁能说清楚？-阿里云开发者社区

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开发者社区> 问答> 正文

MaxCompute2.0 Outputer和Extractor有什么关系，是干什么的，谁能说清楚？

知与谁同

2017-05-19 17:14:34

1140

MaxCompute2.0 Outputer和Extractor有什么关系，是干什么的，谁能说清楚？

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知与谁同
2019-07-17 21:11:47

https://help.aliyun.com/document_detail/45389.html?spm=5176.product27797.6.556.EMbgXj
参考官网，外部表就当成一张普通的MaxCompute表，数据从定义表的时候的LOCATION 来获得数据来源读取数据
读到数据后经过计算，把结果当成一张普通的表来处理。
您可以再看看之前发您的文档里的音频的例子，那个就是从oss里读取音频的文件，输出包含文件名+信噪比两个字段的表。

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