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https://issues.apache.org/jira/browse/SPARK-27865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-27865:
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    Assignee:     (was: Apache Spark)

> Spark SQL support 1:N sort merge bucket join without shuffle
> ------------------------------------------------------------
>
>                 Key: SPARK-27865
>                 URL: https://issues.apache.org/jira/browse/SPARK-27865
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 2.4.3
>            Reporter: Jason Guo
>            Priority: Major
>
> This feature is to support 1:N bucket join
>  
> Without the feature, only bucketed tables which have the same buckets can be 
> joint with sort merge bucket join. If two tables have different number of 
> buckets, shuffle is needed
>  
> This feature make it possible to join two bucketed tables with sort merge 
> bucket join without shuffle



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