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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/07/17 07:44:01 UTC
[jira] [Commented] (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:comment-tabpanel&focusedCommentId=16089438#comment-16089438 ]
Apache Spark commented on SPARK-21435:
--------------------------------------
User 'xuanyuanking' has created a pull request for this issue:
https://github.com/apache/spark/pull/18650
> 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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