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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2017/07/19 07:42:00 UTC

[jira] [Commented] (HIVE-17123) Vectorization: Wrong results for vector_groupby_cube1.q

    [ https://issues.apache.org/jira/browse/HIVE-17123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16092723#comment-16092723 ] 

Gopal V commented on HIVE-17123:
--------------------------------

{code}
                      Reduce Output Operator
                        key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: int)
                        sort order: +++
                        Map-reduce partition columns: rand() (type: double)
                        Statistics: Num rows: 4 Data size: 120 Basic stats: COMPLETE Column stats: NONE
                        value expressions: _col3 (type: bigint)
{code}

The rand() makes no sense?

> Vectorization: Wrong results for vector_groupby_cube1.q
> -------------------------------------------------------
>
>                 Key: HIVE-17123
>                 URL: https://issues.apache.org/jira/browse/HIVE-17123
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>
> The COUNT(DISTINCT column) not supported for vectorization -- yet it seems to be getting vectorized.



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