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https://issues.apache.org/jira/browse/SPARK-22747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kazuaki Ishizaki resolved SPARK-22747.
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Resolution: Won't Fix
> Shorten lifetime of global variables used in HashAggregateExec
> --------------------------------------------------------------
>
> Key: SPARK-22747
> URL: https://issues.apache.org/jira/browse/SPARK-22747
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Kazuaki Ishizaki
> Priority: Major
>
> Generated code in {{HashAggregateExec}} uses global mutable variables that
> are passed to successor operations thru {{consume()}} method. It may cause
> issue in SPARK-22668.
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