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Posted to dev@hive.apache.org by "Naveen Gangam (JIRA)" <ji...@apache.org> on 2017/08/16 14:19:00 UTC

[jira] [Created] (HIVE-17333) Schema changes in HIVE-12274 for Oracle may not work for upgrade

Naveen Gangam created HIVE-17333:
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             Summary: Schema changes in HIVE-12274 for Oracle may not work for upgrade
                 Key: HIVE-17333
                 URL: https://issues.apache.org/jira/browse/HIVE-17333
             Project: Hive
          Issue Type: Bug
          Components: Metastore
    Affects Versions: 3.0.0
            Reporter: Naveen Gangam
            Assignee: Naveen Gangam


According to https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:1770086700346491686 (reported in HIVE-12274)
The alter table command to change the column datatype from {{VARCHAR}} to {{CLOB}} may not work. So the correct way to accomplish this is to add a new temp column, copy the value from the current column, drop the current column and rename the new column to old column.



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