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https://issues.apache.org/jira/browse/SPARK-29693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16964490#comment-16964490
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Yuming Wang commented on SPARK-29693:
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https://data-flair.training/blogs/bucket-map-join/
> Bucket map join if the one's bucket number is the multiple of the other
> -----------------------------------------------------------------------
>
> Key: SPARK-29693
> URL: https://issues.apache.org/jira/browse/SPARK-29693
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yuming Wang
> Priority: Major
>
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