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https://issues.apache.org/jira/browse/HIVE-3950?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan updated HIVE-3950:
-----------------------------------

    Status: Patch Available  (was: Open)

Marking Patch Available.
                
> Remove code for merging files via MR job
> ----------------------------------------
>
>                 Key: HIVE-3950
>                 URL: https://issues.apache.org/jira/browse/HIVE-3950
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: hive-3950.patch
>
>
> Hive can merge files either via MR job or via map only job. Obviously, doing 
> it via map-only job is more efficient, but there is an option of doing it via 
> MR job as well because CombineFileInputFormat is available only in 
> hadoop-0.20 and later. Since, we no longer support hadoop versions earlier 
> than 20 anymore all that is now dead code, we should get rid of it.

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