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From "John Sichi (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-1626) stop using java.util.Stack
Date Wed, 23 Nov 2011 01:18:40 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Sichi updated HIVE-1626:
-----------------------------

    Comment: was deleted

(was: 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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