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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Assigned] (HIVE-13617) LLAP: support non-vectorized execution in IO
Date Mon, 09 May 2016 21:45:13 GMT


Sergey Shelukhin reassigned HIVE-13617:

    Assignee: Sergey Shelukhin

> LLAP: support non-vectorized execution in IO
> --------------------------------------------
>                 Key: HIVE-13617
>                 URL:
>             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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