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Posted to issues@spark.apache.org by "Cheng Su (Jira)" <ji...@apache.org> on 2021/05/08 07:26:00 UTC
[jira] [Commented] (SPARK-34705) Add code-gen for all join types of
sort merge join
[ https://issues.apache.org/jira/browse/SPARK-34705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17341219#comment-17341219 ]
Cheng Su commented on SPARK-34705:
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Just FYI, we are working on each sub-tasks now. Target date is before Spark 3.2.0 release. Thanks.
> Add code-gen for all join types of sort merge join
> --------------------------------------------------
>
> Key: SPARK-34705
> URL: https://issues.apache.org/jira/browse/SPARK-34705
> Project: Spark
> Issue Type: Umbrella
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Cheng Su
> Priority: Minor
>
> Currently sort merge join only supports inner join type ([https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/SortMergeJoinExec.scala#L374] ). We added code-gen for other join types internally in our fork and saw obvious CPU performance improvement. Create this Jira to propose to merge back to upstream.
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