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https://issues.apache.org/jira/browse/ORC-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15743949#comment-15743949
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ASF GitHub Bot commented on ORC-120:
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GitHub user omalley opened a pull request:
https://github.com/apache/orc/pull/72
ORC-120. Add option to force positional matching of schema evolution.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/omalley/orc orc-120
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/orc/pull/72.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #72
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commit 65f77ee9f00792637cdee66342f0016549bb3ca1
Author: Owen O'Malley <omal...@apache.org>
Date: 2016-12-13T02:49:44Z
ORC-120. Add option to force positional matching of schema evolution.
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> 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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