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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2020/03/18 16:01:00 UTC
[jira] [Assigned] (SPARK-31175) Avoid creating reverse comparator
for each compare in InterpretedOrdering
[ https://issues.apache.org/jira/browse/SPARK-31175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan reassigned SPARK-31175:
-----------------------------------
Assignee: wuyi
> Avoid creating reverse comparator for each 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
> Assignee: wuyi
> Priority: Major
>
> 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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