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Posted to dev@hive.apache.org by "Aihua Xu (JIRA)" <ji...@apache.org> on 2016/04/26 19:54:13 UTC

[jira] [Created] (HIVE-13616) Investigate renaming a table without invalidating the column stats

Aihua Xu created HIVE-13616:
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             Summary: Investigate renaming a table without invalidating the column stats
                 Key: HIVE-13616
                 URL: https://issues.apache.org/jira/browse/HIVE-13616
             Project: Hive
          Issue Type: Improvement
          Components: Metastore
            Reporter: Aihua Xu
            Assignee: Aihua Xu


Right now when we rename a table, we clear the column stats rather than updating it (HIVE-9720) since ObjectStore uses DN to talk to DB. Investigate the possibility that if we can achieve updating the stats without rescanning the whole table.





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