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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2019/03/30 07:28:00 UTC

[jira] [Assigned] (SPARK-27320) Converting seq to array in AggregationIterator to improve its access performance

     [ https://issues.apache.org/jira/browse/SPARK-27320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen reassigned SPARK-27320:
---------------------------------

    Assignee: eaton

> Converting seq to array in AggregationIterator to improve its access performance
> --------------------------------------------------------------------------------
>
>                 Key: SPARK-27320
>                 URL: https://issues.apache.org/jira/browse/SPARK-27320
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: eaton
>            Assignee: eaton
>            Priority: Minor
>
> In AggregationIterator's loop function, we access the expressions by `expressions(i)`, the type of `expressions` is `::`, a subtype of list. 



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