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From "Aihua Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17333) Schema changes in HIVE-12274 for Oracle may not work for upgrade
Date Wed, 06 Dec 2017 17:41:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16280558#comment-16280558
] 

Aihua Xu commented on HIVE-17333:
---------------------------------

The patch looks good. +1

> 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
>         Attachments: HIVE-17333.1.patch, HIVE-17333.patch
>
>
> 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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