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https://issues.apache.org/jira/browse/HIVE-9081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242872#comment-14242872
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Chao commented on HIVE-9081:
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Maybe we can do it in {{MapJoinProcessor#convertJoinOpMapJoinOp}} - both auto
conversion and conversion with hint go through this method.
> Bucket mapjoin should use the new alias in posToAliasMap [Spark Branch]
> -----------------------------------------------------------------------
>
> Key: HIVE-9081
> URL: https://issues.apache.org/jira/browse/HIVE-9081
> Project: Hive
> Issue Type: Bug
> Reporter: Jimmy Xiang
> Assignee: Jimmy Xiang
>
> In converting a mapjoin to a bucket mapjoin, the join aliases could be
> updated. So we should update the posToAliasMap accordingly.
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