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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/12/13 12:17:00 UTC

[jira] [Commented] (SPARK-41511) LongToUnsafeRowMap support ignoresDuplicatedKey

    [ https://issues.apache.org/jira/browse/SPARK-41511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17646600#comment-17646600 ] 

Apache Spark commented on SPARK-41511:
--------------------------------------

User 'ulysses-you' has created a pull request for this issue:
https://github.com/apache/spark/pull/39051

> LongToUnsafeRowMap support ignoresDuplicatedKey
> -----------------------------------------------
>
>                 Key: SPARK-41511
>                 URL: https://issues.apache.org/jira/browse/SPARK-41511
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: XiDuo You
>            Priority: Major
>
> For left semi and left anti hash join, the duplicated keys of build side have no meaning.
> Previous, we supported ingore duplicated keys for UnsafeHashedRelation. We can also optimize LongHashedRelation.



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