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Posted to issues@spark.apache.org by "wuyi (Jira)" <ji...@apache.org> on 2020/03/17 16:17:00 UTC

[jira] [Created] (SPARK-31175) Avoid creating new reverse comparator per compare in InterpretedOrdering

wuyi created SPARK-31175:
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             Summary: Avoid creating new reverse comparator per compare in InterpretedOrdering 
                 Key: SPARK-31175
                 URL: https://issues.apache.org/jira/browse/SPARK-31175
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.1.0
            Reporter: wuyi


Currently, we'll create a new reverse comparator for each compare in InterpretedOrdering, which could generate lots of small and instant object to hurt JVM.



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