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Posted to issues@hawq.apache.org by "Oleksandr Diachenko (JIRA)" <ji...@apache.org> on 2017/05/12 20:26:04 UTC

[jira] [Assigned] (HAWQ-1446) Introduce vectorized profile for ORC

     [ https://issues.apache.org/jira/browse/HAWQ-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oleksandr Diachenko reassigned HAWQ-1446:
-----------------------------------------

    Assignee: Oleksandr Diachenko  (was: Ed Espino)

> Introduce vectorized profile for ORC
> ------------------------------------
>
>                 Key: HAWQ-1446
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1446
>             Project: Apache HAWQ
>          Issue Type: New Feature
>          Components: PXF
>            Reporter: Oleksandr Diachenko
>            Assignee: Oleksandr Diachenko
>
> As for now, PXF has HiveORC format which supports reading ORC files with leveraging ORC's file advantages(column projections, predicate push-downs).
>  The only drawback of this profile - it still operates on a single row. So the idea is to implement a profile for reading ORC files, but operate on batches of rows, which supposed to be faster on reading and resolution phases.



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