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https://issues.apache.org/jira/browse/HIVE-705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12840832#action_12840832
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Prasad Chakka commented on HIVE-705:
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John, Why are pre, commit, rollback functions needed in MetaHook? Isn't it 
enough just to drop table as a rollback for create, and do the drop table after 
hive drop table? With the current definition the MetaHook implementation needs 
to keep state around which Hive itself doesn't do.

Also alter table on external tables should be allowed since underlying storage 
format for external tables is not managed by Hive itself. In such cases alter 
table is just changing metadata in side Hive.

> Let Hive can analyse hbase's tables
> -----------------------------------
>
>                 Key: HIVE-705
>                 URL: https://issues.apache.org/jira/browse/HIVE-705
>             Project: Hadoop Hive
>          Issue Type: New Feature
>    Affects Versions: 0.6.0
>            Reporter: Samuel Guo
>            Assignee: John Sichi
>             Fix For: 0.6.0
>
>         Attachments: hbase-0.19.3-test.jar, hbase-0.19.3.jar, 
> hbase-0.20.3-test.jar, hbase-0.20.3.jar, HIVE-705.1.patch, HIVE-705.2.patch, 
> HIVE-705_draft.patch, HIVE-705_revision806905.patch, 
> HIVE-705_revision883033.patch, zookeeper-3.2.2.jar
>
>
> Add a serde over the hbase's tables, so that hive can analyse the data stored 
> in hbase easily.

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