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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ORC-344) Support using the new Decimal64ColumnVector for reading and writing decimal
Date Wed, 18 Apr 2018 03:17:00 GMT
Owen O'Malley created ORC-344:
---------------------------------

             Summary: Support using the new Decimal64ColumnVector for reading and writing
decimal
                 Key: ORC-344
                 URL: https://issues.apache.org/jira/browse/ORC-344
             Project: ORC
          Issue Type: Improvement
          Components: Java
            Reporter: Owen O'Malley
            Assignee: Owen O'Malley


Hive just added Decimal64ColumnVector for faster operations on decimal objects that are <=
18 digits of precision.

I propose:
* We create a new method in TypeDescription to create the VectorizedRowBatch with the new
Decimal64ColumnVector.
* Have the reader and writer detect the ColumnVector type and call the right internal method.

This leaves current clients working using the current ColumnVector. Clients can chose when
to transition to the new interface.



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