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Posted to dev@hive.apache.org by "Chaoyu Tang (JIRA)" <ji...@apache.org> on 2015/09/10 16:29:46 UTC

[jira] [Created] (HIVE-11788) Column stats should be preserved after db/table/partitoin rename

Chaoyu Tang created HIVE-11788:
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             Summary: Column stats should be preserved after db/table/partitoin rename
                 Key: HIVE-11788
                 URL: https://issues.apache.org/jira/browse/HIVE-11788
             Project: Hive
          Issue Type: Bug
          Components: Metastore, Statistics
            Reporter: Chaoyu Tang
            Assignee: Chaoyu Tang


Currently we simply delete the column stats after renaming a database, table, or partition since there was not an easy way in HMS to update the DB_NAME, TABLE_NAME and PARTITION_NAME in TAB_COL_STATS and PART_COL_STATS. With the removal of these redundant columns in these tables (HIVE-11786), we will still keep column stats in the operation which is not to change a column name or type.



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