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https://issues.apache.org/jira/browse/HIVE-8406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14173449#comment-14173449
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Rui Li commented on HIVE-8406:
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Skew join optimization depends on map join.
> Research on skewed join [Spark Branch]
> --------------------------------------
>
> Key: HIVE-8406
> URL: https://issues.apache.org/jira/browse/HIVE-8406
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Xuefu Zhang
> Assignee: Rui Li
>
> Research on how to handle skewed join for hive on spark. Here is original
> hive's design doc for skewed join,
> https://cwiki.apache.org/confluence/display/Hive/Skewed+Join+Optimization.
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