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