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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/08/04 01:20:04 UTC
[jira] [Commented] (SPARK-9577) Surface concrete iterator types in
various sort classes
[ https://issues.apache.org/jira/browse/SPARK-9577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14652768#comment-14652768 ]
Apache Spark commented on SPARK-9577:
-------------------------------------
User 'rxin' has created a pull request for this issue:
https://github.com/apache/spark/pull/7911
> Surface concrete iterator types in various sort classes
> -------------------------------------------------------
>
> Key: SPARK-9577
> URL: https://issues.apache.org/jira/browse/SPARK-9577
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
> Fix For: 1.5.0
>
>
> We often return abstract iterator types in various sort-related classes (e.g. UnsafeKVExternalSorter).
> It is actually better to return a more concrete type, so the callsite uses that type and JIT can inline the iterator calls.
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