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https://issues.apache.org/jira/browse/SPARK-36794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-36794:
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Labels: pull-request-available (was: )
> Ignore duplicated join keys when building relation for SEMI/ANTI shuffle hash
> join
> ----------------------------------------------------------------------------------
>
> Key: SPARK-36794
> URL: https://issues.apache.org/jira/browse/SPARK-36794
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Cheng Su
> Assignee: Cheng Su
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.3.0
>
>
> For LEFT SEMI and LEFT ANTI hash equi-join without extra join condition, we
> only need to keep one row per unique join key(s) inside hash table
> (`HashedRelation`) when building the hash table. This can help reduce the
> size of hash table of join.
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