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From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-22746) Avoid the generation of useless mutable states by SortMergeJoin
Date Mon, 11 Dec 2017 21:17:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-22746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Li resolved SPARK-22746.
-----------------------------
       Resolution: Fixed
         Assignee: Kazuaki Ishizaki
    Fix Version/s: 2.3.0

> Avoid the generation of useless mutable states by SortMergeJoin
> ---------------------------------------------------------------
>
>                 Key: SPARK-22746
>                 URL: https://issues.apache.org/jira/browse/SPARK-22746
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Kazuaki Ishizaki
>            Assignee: Kazuaki Ishizaki
>             Fix For: 2.3.0
>
>
> Generated code in {{SortMergeJoin}} uses global mutable variables to extend lifetime
of variables in a nested loop. The generated code can use local variables instead of global
mutable variables.



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