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https://issues.apache.org/jira/browse/HIVE-2711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13244981#comment-13244981
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Ashutosh Chauhan commented on HIVE-2711:
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Patch results failures in TestCliDriver in following queries:

* alter_concatenate_indexed_table.q
* alter_merge.q
* alter_merge_stats.q
* create_merge_compressed.q
* ctas.q
* partition_wise_fileformat.q
* partition_wise_fileformat3.q
* sample10.q
                
> Make the header of RCFile unique
> --------------------------------
>
>                 Key: HIVE-2711
>                 URL: https://issues.apache.org/jira/browse/HIVE-2711
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: HIVE-2711.D2115.1.patch, HIVE-2711.D2115.2.patch, 
> HIVE-2711.D2571.1.patch
>
>
> The RCFile implementation was copied from Hadoop's SequenceFile and copied 
> the 'magic' string in the header. This means that you can't use the header to 
> distinguish between RCFiles and SequenceFiles.
> I'd propose that we create a new header for RCFiles (RCF?) to replace the 
> current SEQ. To maintain compatibility, we'll need to continue to accept the 
> current 'SEQ\06' and just make new files contain the new header.

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