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From "Chaoyu Tang (JIRA)" <>
Subject [jira] [Created] (HIVE-10363) Provide a way to normalize the legacy partition column values
Date Thu, 16 Apr 2015 14:28:58 GMT
Chaoyu Tang created HIVE-10363:

             Summary: Provide a way to normalize the legacy partition column values
                 Key: HIVE-10363
             Project: Hive
          Issue Type: Improvement
          Components: Types
            Reporter: Chaoyu Tang
            Assignee: Chaoyu Tang

We have seen a lot issues which were caused by the non-normalized partition column values,
such as HIVE-10210, HIVE-6052 etc. Besides type checking, converting and normalizing the partition
column values in insert/alter partition operations (see HIVE-10307, HIVE-10362), we need provide
an easy way for users to normalize their legacy partition column data. HIVE-5700 has attempted
to do at metastore sql level, but given that many flavors of backend databases and different
versions, it is quite hard to achieve that and it is also error prone. The sql portion of
change in HIVE-5700 has been reverted by HIVE-9445/HIVE-9509.
Currently alter table .. partition ... rename could be used to normalize the partition column
for each partition, but I am thinking any other more convenient and better way to do that.

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