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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13602) TPCH q16 return wrong result when CBO is on
Date Mon, 25 Apr 2016 05:06:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15255900#comment-15255900
] 

Pengcheng Xiong commented on HIVE-13602:
----------------------------------------

[~nemon], do you have all the table/column stats for all the tables? Could u attach the explain
results for CBO on and off? Thanks.

> TPCH q16 return wrong result when CBO is on
> -------------------------------------------
>
>                 Key: HIVE-13602
>                 URL: https://issues.apache.org/jira/browse/HIVE-13602
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO, Logical Optimizer
>    Affects Versions: 1.2.1
>            Reporter: Nemon Lou
>            Assignee: Pengcheng Xiong
>
> Running tpch with factor 2, 
> q16 returns 1,160 rows when CBO is on,
> while returns 59,616 rows when CBO is off.
> See attachment for detail .



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