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https://issues.apache.org/jira/browse/HIVE-5538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14205920#comment-14205920
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Brock Noland commented on HIVE-5538:
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For this one, could we see some performance numbers run with and without
vectorization with MR and Tez? A few weeks ago [~jxiang] did some measurements
and saw some strange results. It'd be great to see some current performance
runs on this feature.
> Turn on vectorization by default.
> ---------------------------------
>
> Key: HIVE-5538
> URL: https://issues.apache.org/jira/browse/HIVE-5538
> Project: Hive
> Issue Type: Sub-task
> Reporter: Jitendra Nath Pandey
> Assignee: Matt McCline
> Attachments: HIVE-5538.1.patch, HIVE-5538.2.patch, HIVE-5538.3.patch,
> HIVE-5538.4.patch, HIVE-5538.5.patch, HIVE-5538.5.patch, HIVE-5538.6.patch
>
>
> Vectorization should be turned on by default, so that users don't have to
> specifically enable vectorization.
> Vectorization code validates and ensures that a query falls back to row
> mode if it is not supported on vectorized code path.
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