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Posted to dev@hive.apache.org by "Zheng Shao (JIRA)" <ji...@apache.org> on 2009/03/24 08:29:50 UTC

[jira] Created: (HIVE-358) Short-circuiting serialization

Short-circuiting serialization
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                 Key: HIVE-358
                 URL: https://issues.apache.org/jira/browse/HIVE-358
             Project: Hadoop Hive
          Issue Type: Improvement
          Components: Serializers/Deserializers
            Reporter: Zheng Shao


When a field from one table is going to be stored directly into a field of another table, and both of the tables have the same serde configurations, we don't need to deserialize the field and serialize the field again.  This will save substantial amount of CPU time if the field is big (e.g. map of array of map, etc).


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