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Posted to dev@hive.apache.org by "Brock Noland (JIRA)" <ji...@apache.org> on 2013/12/17 15:54:07 UTC

[jira] [Created] (HIVE-6043) Document incompatible changes

Brock Noland created HIVE-6043:
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             Summary: Document incompatible changes
                 Key: HIVE-6043
                 URL: https://issues.apache.org/jira/browse/HIVE-6043
             Project: Hive
          Issue Type: Task
            Reporter: Brock Noland
            Priority: Blocker


We need to document incompatible changes. For example

* HIVE-5372 changed object inspector hierarchy breaking most if not all custom serdes
* HIVE-1511/HIVE-5263 serializes ObjectInspectors with Kryo so all custom serdes (fixed by HIVE-5380)
* Hive 0.12 separates MapredWork into MapWork and ReduceWork which is used by Serdes
* HIVE-5411 serializes expressions with Kryo which are used by custom serdes




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