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From "Matt McCline (JIRA)" <>
Subject [jira] [Commented] (HIVE-13282) GroupBy and select operator encounter ArrayIndexOutOfBoundsException
Date Fri, 20 Jan 2017 20:58:27 GMT


Matt McCline commented on HIVE-13282:

Vikram had worked on it.  I took over.  There were 2 issues I recall.  One was the index out
of bounds but when that was fixed another issue wrong results appeared.  It had to do with
handling of operator close when there are multiple parents.  I wasn't able to work that one
very well.

> GroupBy and select operator encounter ArrayIndexOutOfBoundsException
> --------------------------------------------------------------------
>                 Key: HIVE-13282
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 1.2.1, 2.0.0, 2.1.0
>            Reporter: Vikram Dixit K
>            Assignee: Matt McCline
>            Priority: Blocker
>         Attachments: HIVE-13282.01.patch, smb_fail_issue.patch, smb_groupby.q, smb_groupby.q.out
> 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 from
> (select t1.key as id, t1.value as od from tab t1 group by key, value) rt1) vt1
> join
> (select from
> (select t2.key as id, t2.value as od from tab_part t2 group by key, value) rt2) vt2
> where;
> {code}

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