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From "Zheng Shao (JIRA)" <>
Subject [jira] Created: (HIVE-358) Short-circuiting serialization
Date Tue, 24 Mar 2009 07:29:50 GMT
Short-circuiting serialization

                 Key: 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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