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From "Hyukjin Kwon (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-21435) Empty files should be skipped while write to file
Date Mon, 17 Jul 2017 08:32:00 GMT

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

Hyukjin Kwon resolved SPARK-21435.
----------------------------------
    Resolution: Duplicate

I am resolving this as a duplicate of SPARK-20065. I believe the fix should be essentially
in the same place and they describe the similar issues. Please reopen this if the fix should
be separate or I misunderstood.

> 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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