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https://issues.apache.org/jira/browse/SPARK-26208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16702345#comment-16702345
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Apache Spark commented on SPARK-26208:
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User 'koertkuipers' has created a pull request for this issue:
https://github.com/apache/spark/pull/23173
> Empty dataframe does not roundtrip for csv with header
> ------------------------------------------------------
>
> Key: SPARK-26208
> URL: https://issues.apache.org/jira/browse/SPARK-26208
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Environment: master branch,
> commit 034ae305c33b1990b3c1a284044002874c343b4d,
> date: Sun Nov 18 16:02:15 2018 +0800
> Reporter: koert kuipers
> Priority: Minor
>
> when we write empty part file for csv and header=true we fail to write
> header. the result cannot be read back in.
> when header=true a part file with zero rows should still have header
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