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https://issues.apache.org/jira/browse/HIVE-2470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120406#comment-13120406
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John Sichi commented on HIVE-2470:
----------------------------------

You can run ant test on a dev box; it currently takes 4-5 hours though until we 
get the parallelization scripts cleaned up.

But our current policy is that committers always run through tests 
unconditionally before commit; in the past, when some breakage has slipped into 
trunk, it has been a pain to get back to a clean state since people start to 
assume that any failure is a known failure (so more and more breakage trickles 
in).

                
> Improve support for Constant Object Inspectors
> ----------------------------------------------
>
>                 Key: HIVE-2470
>                 URL: https://issues.apache.org/jira/browse/HIVE-2470
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Jonathan Chang
>            Assignee: Jonathan Chang
>         Attachments: HIVE-1360.part2.patch, HIVE-2470.patch, 
> HIVE-2470.patch.3, HIVE-2470.patch.4, HIVE-2470.patch.5
>
>
> ConstantObjectInspectors are nice but they need to be more widely supported 
> and used.  In particular,
> * More functions need to be using them.
> * There need to be facilities for propagating constness.
> * Support for complex types must be added.

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