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Posted to issues@spark.apache.org by "Takeshi Yamamuro (Jira)" <ji...@apache.org> on 2020/09/11 00:13:00 UTC

[jira] [Resolved] (SPARK-32822) Change the number of partitions to zero when a range is empty with WholeStageCodegen disabled or falled back

     [ https://issues.apache.org/jira/browse/SPARK-32822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Takeshi Yamamuro resolved SPARK-32822.
--------------------------------------
    Fix Version/s: 3.1.0
       Resolution: Fixed

Resolved by [https://github.com/apache/spark/pull/29681|https://github.com/apache/spark/pull/29681#]

> Change the number of partitions to zero when a range is empty with WholeStageCodegen disabled or falled back
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-32822
>                 URL: https://issues.apache.org/jira/browse/SPARK-32822
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: Kousuke Saruta
>            Assignee: Kousuke Saruta
>            Priority: Minor
>             Fix For: 3.1.0
>
>
> If WholeStageCodegen effects, the number of partitions of an empty range will be changed to zero. But it doesn't changed when WholeStageCodegen is disabled or falled back.



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