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From "Li Yuanjian (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-21435) Empty files should be skipped while write to file
Date Mon, 17 Jul 2017 07:34:00 GMT
Li Yuanjian created SPARK-21435:
-----------------------------------

             Summary: 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


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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