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https://issues.apache.org/jira/browse/FLINK-3655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15224354#comment-15224354
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Tian, Li commented on FLINK-3655:
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I think we may need to use List<Path> instead of a single Path in
FileInputFormat.
In this way, we should also
1. modify current implementations to support multiple input paths
2. add functions like setFilePaths, getFilePaths to FileInputFormat, and
support comma-seperated Path string in ExecutionEnvironment
3. for backward compatibility, let FileInputFormat.setFilePath set the
inputPaths to a one-element list
> Allow comma-separated or multiple directories to be specified for
> FileInputFormat
> ---------------------------------------------------------------------------------
>
> Key: FLINK-3655
> URL: https://issues.apache.org/jira/browse/FLINK-3655
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.0.0
> Reporter: Gna Phetsarath
> Priority: Minor
> Labels: starter
>
> Allow comma-separated or multiple directories to be specified for
> FileInputFormat so that a DataSource will process the directories
> sequentially.
>
> env.readFile("/data/2016/01/01/*/*,/data/2016/01/02/*/*,/data/2016/01/03/*/*")
> in Scala
> env.readFile(paths: Seq[String])
> or
> env.readFile(path: String, otherPaths: String*)
> Wildcard support would be a bonus.
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