github/DataX
5
0
Fork 0
mirror of https://github.com/alibaba/DataX.git synced 2025-05-02 00:53:34 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1740 from iuhoay/patch-1

Browse Source 
Style
This commit is contained in:
dingxiaobo 2023-04-14 09:53:53 +08:00 committed by GitHub
commit 3000483701
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
hdfsreader/doc/hdfsreader.md
View File

@ -166,20 +166,20 @@ HdfsReader实现了从Hadoop分布式文件系统Hdfs中读取文件数据并转
默认情况下，用户可以全部按照String类型读取数据，配置如下：
```json
"column": ["*"]
"column": ["*"]
```
用户可以指定Column字段信息，配置如下：
```json
{
"type": "long",
"index": 0 //从本地文件文本第一列获取int字段
},
{
"type": "string",
"value": "alibaba" //HdfsReader内部生成alibaba的字符串字段作为当前字段
}
{
"type": "long",
"index": 0 //从本地文件文本第一列获取int字段
},
{
"type": "string",
"value": "alibaba" //HdfsReader内部生成alibaba的字符串字段作为当前字段
}
```
对于用户指定Column信息，type必须填写，index/value必须选择其一。