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https://issues.apache.org/jira/browse/HIVE-14988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16091101#comment-16091101
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Wei Zheng commented on HIVE-14988:
----------------------------------

[~leftylev] Thanks for catching that. INSERT OVERWRITE is not a new feature, so 
I don't think we need to highlight this. But we do need to remove one bullet 
item under here: 
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DML#LanguageManualDML-Synopsis.1
{code}
"As of Hive 0.14, if a table has an OutputFormat that implements 
AcidOutputFormat and the system is configured to use a transaction manager that 
implements ACID, then INSERT OVERWRITE will be disabled for that table.  This 
is to avoid users unintentionally overwriting transaction history.  The same 
functionality can be achieved by using TRUNCATE TABLE (for non-partitioned 
tables) or DROP PARTITION followed by INSERT INTO."
{code}

> Support INSERT OVERWRITE into a partition on transactional tables
> -----------------------------------------------------------------
>
>                 Key: HIVE-14988
>                 URL: https://issues.apache.org/jira/browse/HIVE-14988
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>             Fix For: 3.0.0
>
>         Attachments: HIVE-14988.01.patch, HIVE-14988.02.patch, 
> HIVE-14988.03.patch, HIVE-14988.04.patch, HIVE-14988.05.patch, 
> HIVE-14988.06.patch
>
>
> Insert overwrite operation on transactional table will currently raise an 
> error.
> This can/should be supported



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