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https://issues.apache.org/jira/browse/HIVE-5538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14205946#comment-14205946
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Brock Noland commented on HIVE-5538:
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We were using the tpc-ds 88 and MR:
{noformat}
--------------------------------------------------------------------
enabled 769.21
--------------------------------------------------------------------
disabled 758.33
(time in seconds)
{noformat}
not sure of the dataset size. Would you happen to be able to test that query?
> 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,
> HIVE-5538.61.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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