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From "Owen O'Malley (JIRA)" <>
Subject [jira] [Commented] (HIVE-14007) Replace ORC module with ORC release
Date Mon, 12 Dec 2016 22:45:58 GMT


Owen O'Malley commented on HIVE-14007:

The current behavior and the fix to encode column names was shipped in hive 2 and this patch
fundamentally changes how alter table statements/schema evolution works.

Ok, it is trivial to add a configuration knob like "orc.ignore.names.for.evolution", which
we can do. I've filed ORC-120 to handle the transition to the richer schema evolution.

As for your other concerns, I've presented a solution and you keep raising the same vague
concerns. Having the two implementations of ORC is *really* problematic and is leading to
Hive not getting bug fixes and new features. That will continue to worsen as the two code
branches continue to diverge.

> Replace ORC module with ORC release
> -----------------------------------
>                 Key: HIVE-14007
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: ORC
>    Affects Versions: 2.2.0
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 2.2.0
>         Attachments: HIVE-14007.patch, HIVE-14007.patch, HIVE-14007.patch, HIVE-14007.patch
> This completes moving the core ORC reader & writer to the ORC project.

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