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问题描述

我在impala中有一个sql查询,从表中选择* ,但是当我执行此操作时,某些列丢失了.

I have an sql query within impala select * from table but when I execute this certain columns are missing .

当我做描述表时,这些列在那里.

Whereas when I do describe table those columns are there.

我无法显示代码段,但未显示的类型是地图数组结构.

I cannot show the snippet but the types not showing up are maps,arrays, and structs.

推荐答案

Impala不支持.复杂类型必须解压才能显示.

Impala doesn't support that. Complex types have to be unpacked to be displayed.

来源:查询和复杂类型

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06-11 15:12