pingcap / pingcap/tidb

TiDB lightning加载文件需要列过滤

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Description

## General Question

请问下tiDB lightning 在导入文件时是否可以指定列,比如有如下列
1,2,3,4,5,6,7,8,9
我要的内容就是 1,3,5,8
文档中没看到有这方面的说明。请帮忙解答。

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