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Posted to dev@hive.apache.org by "Vikram Dixit K (JIRA)" <ji...@apache.org> on 2014/10/14 06:29:33 UTC

[jira] [Created] (HIVE-8453) Fix possible unnecessary deserialization in hive-tez

Vikram Dixit K created HIVE-8453:
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             Summary: Fix possible unnecessary deserialization in hive-tez
                 Key: HIVE-8453
                 URL: https://issues.apache.org/jira/browse/HIVE-8453
             Project: Hive
          Issue Type: Bug
          Components: Tez
    Affects Versions: 0.14.0
            Reporter: Vikram Dixit K
            Assignee: Vikram Dixit K


HIVE-8409 requires deserialization of the entire row to merge on the sorted columns which is expensive. We could potentially deserialize only the sorted column from the serialized data and save on this cost.



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