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https://issues.apache.org/jira/browse/HIVE-5973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13846211#comment-13846211
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Vikram Dixit K commented on HIVE-5973:
--------------------------------------

https://reviews.apache.org/r/16213/

> SMB joins produce incorrect results with multiple partitions and buckets
> ------------------------------------------------------------------------
>
>                 Key: HIVE-5973
>                 URL: https://issues.apache.org/jira/browse/HIVE-5973
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.13.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>             Fix For: 0.13.0
>
>         Attachments: HIVE-5973.1.patch
>
>
> It looks like there is an issue with re-using the output object array in the 
> select operator. When we read rows of the non-big tables, we hold on to the 
> output object in the priority queue. This causes hive to produce incorrect 
> results because all the elements in the priority queue refer to the same 
> object and the join happens on only one of the buckets.
> {noformat}
> output[i] = eval[i].evaluate(row);
> {noformat}



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