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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2022/11/30 13:19:00 UTC

[jira] [Created] (SPARK-41337) Add a physical rule to remove the partialLimitExec node

jiaan.geng created SPARK-41337:
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             Summary: Add a physical rule to remove the partialLimitExec node
                 Key: SPARK-41337
                 URL: https://issues.apache.org/jira/browse/SPARK-41337
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.4.0
            Reporter: jiaan.geng


Currently, the planner WindowGroupLimit creates two WindowGroupLimitExec node.

We can add a physical rule to remove the partialLimitExec node, if there is no shuffle between the two nodes (partialLimitExec's outputPartitioning satisfies the finalLimitExec's requiredChildDistribution)



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