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https://issues.apache.org/jira/browse/HIVE-1290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853596#action_12853596
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Ning Zhang commented on HIVE-1290:
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Looks good, one comment:

The taskID was changed in execContext for use in FileSinkOperator. It is not 
intuitive why we change the set the taskID in execContext. Should we change the 
name to something like "fileID"?
  

> sort merge join does not work with bucketizedhiveinputformat
> ------------------------------------------------------------
>
>                 Key: HIVE-1290
>                 URL: https://issues.apache.org/jira/browse/HIVE-1290
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>             Fix For: 0.6.0
>
>         Attachments: hive.1290.1.patch, hive.1290.2.patch
>
>
> The mappers are assigned in the order of the sizes of the files which 
> violates the output bucketing of the result of sort merge join

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