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From "John Sichi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1626) stop using java.util.Stack
Date Wed, 14 Sep 2011 21:38:10 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13104907#comment-13104907
] 

John Sichi commented on HIVE-1626:
----------------------------------

More testing.


> stop using java.util.Stack
> --------------------------
>
>                 Key: HIVE-1626
>                 URL: https://issues.apache.org/jira/browse/HIVE-1626
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 0.7.0
>            Reporter: John Sichi
>            Assignee: John Sichi
>
> We currently use Stack as part of the generic node walking library.  Stack should not
be used for this since its inheritance from Vector incurs superfluous synchronization overhead.
> Most projects end up adding an ArrayStack implementation and using that instead.

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