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From "Vikram Dixit K (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13282) GroupBy and select operator encounter ArrayIndexOutOfBoundsException
Date Thu, 07 Apr 2016 22:05:25 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15231193#comment-15231193
] 

Vikram Dixit K commented on HIVE-13282:
---------------------------------------

Yes. We can move this out to 2.1.0. This only happens in case of reduce side SMB in tez. We
have a simple workaround right now that will address this. The real fix would take a lot of
refactoring the code which is more suited for master than a maintenance release.

> GroupBy and select operator encounter ArrayIndexOutOfBoundsException
> --------------------------------------------------------------------
>
>                 Key: HIVE-13282
>                 URL: https://issues.apache.org/jira/browse/HIVE-13282
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 1.2.1, 2.0.0, 2.1.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>
> The group by and select operators run into the ArrayIndexOutOfBoundsException when they
incorrectly initialize themselves with tag 0 but the incoming tag id is different.
> {code}
> select count(*) from
> (select rt1.id from
> (select t1.key as id, t1.value as od from tab t1 group by key, value) rt1) vt1
> join
> (select rt2.id from
> (select t2.key as id, t2.value as od from tab_part t2 group by key, value) rt2) vt2
> where vt1.id=vt2.id;
> {code}



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