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https://issues.apache.org/jira/browse/HIVE-1730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12922292#action_12922292
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Namit Jain commented on HIVE-1730:
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This is a follow-up of HIVE-1641
> Keep the mapping between jdbm file name with bucket file name during the
> compile time
> -------------------------------------------------------------------------------------
>
> Key: HIVE-1730
> URL: https://issues.apache.org/jira/browse/HIVE-1730
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor
> Affects Versions: 0.7.0
> Reporter: Liyin Tang
> Assignee: Liyin Tang
>
> Right now, the new map join operator will figure out the jdbm file name
> during the run time based some string function.
> But we need to keep this mapping during the compile time, so the explain task
> can understand which jdbm file the mapred task will need.
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