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From "Sushanth Sowmyan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-15533) Repl rename support adds unnecessary duplication for non-rename alters
Date Tue, 03 Jan 2017 18:30:58 GMT
Sushanth Sowmyan created HIVE-15533:
---------------------------------------

             Summary: Repl rename support adds unnecessary duplication for non-rename alters
                 Key: HIVE-15533
                 URL: https://issues.apache.org/jira/browse/HIVE-15533
             Project: Hive
          Issue Type: Sub-task
            Reporter: Sushanth Sowmyan
            Assignee: Sushanth Sowmyan


Currently, the rename events contain a before & after object. For non-rename cases, we
simply impress the "after" object, and thus have no need of the "before" object. Thus, we
might want to minimize wastage by not materializing "before" if this is a non-rename case.

Also worth considering - if a rename case, do we really need the before object, or simply
the before & after names?

Having before & after objects is good in that it allows us flexibility, but we might not
need that much info. From a perf viewpoint, we might want to trim things a bit here.



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