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From Dain Sundstrom <d...@iq80.com>
Subject Re: [jira] [Created] (ORC-120) Create a backwards compatibility mode of ignoring names for evolution
Date Mon, 12 Dec 2016 22:55:21 GMT
Is "ORC's schema evolution uses the column names when they are availableā€ documented somewhere?

-dain

> On Dec 12, 2016, at 2:24 PM, Owen O'Malley (JIRA) <jira@apache.org> wrote:
> 
> Owen O'Malley created ORC-120:
> ---------------------------------
> 
>             Summary: Create a backwards compatibility mode of ignoring names for evolution
>                 Key: ORC-120
>                 URL: https://issues.apache.org/jira/browse/ORC-120
>             Project: Orc
>          Issue Type: Task
>            Reporter: Owen O'Malley
> 
> 
> ORC's schema evolution uses the column names when they are available. Hive 2.1 uses a
positional schema, so ORC should support a backward compatibility mode for Hive users during
the transition.
> 
> 
> 
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