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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2017/07/19 05:42:00 UTC

[jira] [Reopened] (SPARK-21435) Empty files should be skipped while write to file

     [ https://issues.apache.org/jira/browse/SPARK-21435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan reopened SPARK-21435:
---------------------------------

> Empty files should be skipped while write to file
> -------------------------------------------------
>
>                 Key: SPARK-21435
>                 URL: https://issues.apache.org/jira/browse/SPARK-21435
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Li Yuanjian
>            Priority: Minor
>
> Consider of this scenario, source table has many partitions and data files, after the query filter, only a few data write to the destination dir.
> In this case the destination dir or table will have many empty files or files only have schema meta(parquet format), I know we can use coalesce but skip the empty file may be more better in this case.



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