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Posted to issues@spark.apache.org by "Cheng Su (Jira)" <ji...@apache.org> on 2021/03/11 02:23:00 UTC

[jira] [Created] (SPARK-34704) Add code-gen support for all join types of sort merge join

Cheng Su created SPARK-34704:
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             Summary: Add code-gen support for all join types of sort merge join
                 Key: SPARK-34704
                 URL: https://issues.apache.org/jira/browse/SPARK-34704
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.2.0
            Reporter: Cheng Su


Currently sort merge join only has code-gen for 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 add the code-gen to upstream.



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