[
https://issues.apache.org/jira/browse/HIVE-13617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15350002#comment-15350002
]
Lefty Leverenz commented on HIVE-13617:
---------------------------------------
Doc note: This adds *hive.llap.io.nonvector.wrapper.enabled* to HiveConf.java,
so it will need to be documented in the LLAP section of Configuration
Properties for release 2.2.0.
* [Configuration Properties -- LLAP |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-LLAP]
Added a TODOC2.2 label.
> LLAP: support non-vectorized execution in IO
> --------------------------------------------
>
> Key: HIVE-13617
> URL: https://issues.apache.org/jira/browse/HIVE-13617
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Labels: TODOC2.2
> Fix For: 2.2.0
>
> Attachments: HIVE-13617-wo-11417.patch, HIVE-13617-wo-11417.patch,
> HIVE-13617.01.patch, HIVE-13617.03.patch, HIVE-13617.04.patch,
> HIVE-13617.05.patch, HIVE-13617.06.patch, HIVE-13617.patch, HIVE-13617.patch,
> HIVE-15396-with-oi.patch
>
>
> Two approaches - a separate decoding path, into rows instead of VRBs; or
> decoding VRBs into rows on a higher level (the original LlapInputFormat). I
> think the latter might be better - it's not a hugely important path, and perf
> in non-vectorized case is not the best anyway, so it's better to make do with
> much less new code and architectural disruption.
> Some ORC patches in progress introduce an easy to reuse (or so I hope,
> anyway) VRB-to-row conversion, so we should just use that.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
