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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2020/02/12 01:50:00 UTC
[jira] [Resolved] (SPARK-30780) LocalRelation should use emptyRDD
if it is empty
[ https://issues.apache.org/jira/browse/SPARK-30780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyukjin Kwon resolved SPARK-30780.
----------------------------------
Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 27530
[https://github.com/apache/spark/pull/27530]
> LocalRelation should use emptyRDD if it is empty
> ------------------------------------------------
>
> Key: SPARK-30780
> URL: https://issues.apache.org/jira/browse/SPARK-30780
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 2.4.5
> Reporter: Herman van Hövell
> Assignee: Herman van Hövell
> Priority: Major
> Fix For: 3.0.0
>
>
> LocalRelation creates an RDD of a single partition when it is empty. This is somewhat unexpected, and can lead to unnecessary work.
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