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Posted to dev@hive.apache.org by "Samuel Yuan (JIRA)" <ji...@apache.org> on 2013/03/22 22:13:15 UTC

[jira] [Created] (HIVE-4221) Stripe-level merge for ORC files

Samuel Yuan created HIVE-4221:
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             Summary: Stripe-level merge for ORC files
                 Key: HIVE-4221
                 URL: https://issues.apache.org/jira/browse/HIVE-4221
             Project: Hive
          Issue Type: Improvement
          Components: Query Processor
            Reporter: Samuel Yuan
            Assignee: Samuel Yuan


As with RC files, we would like to be able to merge ORC files efficiently by reading/writing stripes without decompressing/recompressing them. This will be similar to the RC file merge, except that footers will have to be updated with the stripe positions in the new file.

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