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Posted to issues@hive.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2016/05/09 21:45:13 UTC

[jira] [Assigned] (HIVE-13617) LLAP: support non-vectorized execution in IO

     [ https://issues.apache.org/jira/browse/HIVE-13617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Shelukhin reassigned HIVE-13617:
---------------------------------------

    Assignee: Sergey Shelukhin

> 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
>
> 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.



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