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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1626) stop using java.util.Stack
Date Thu, 30 Mar 2017 21:34:41 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15949894#comment-15949894
] 

Ashutosh Chauhan commented on HIVE-1626:
----------------------------------------

Patch needs a rebase.

> 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: Teddy Choi
>         Attachments: HIVE-1626.2.patch, HIVE-1626.2.patch, HIVE-1626.3.patch, HIVE-1626.3.patch,
HIVE-1626.3.patch
>
>
> 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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