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https://issues.apache.org/jira/browse/HIVE-14981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15579041#comment-15579041
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Gopal V commented on HIVE-14981:
--------------------------------
[~mmccline]: LGTM, +1 tests pending.
I don't think the following golden file change is a problem, but it would be
good to clarify on this JIRA how the 3 turns into 25?
{code}
Group By Operator
aggregations: count(1)
Group By Vectorization:
- aggregators:
VectorUDAFCount(ConstantVectorExpression(val 1) -> 3:long) -> bigint
+ aggregators:
VectorUDAFCount(ConstantVectorExpression(val 1) -> 25:long) -> bigint
{code}
Is that the column id # in lieu of a constant key like 0?
> Eliminate unnecessary MapJoin restriction in HIVE-11394
> -------------------------------------------------------
>
> Key: HIVE-14981
> URL: https://issues.apache.org/jira/browse/HIVE-14981
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 2.2.0
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Fix For: 2.2.0
>
> Attachments: HIVE-14981.01.patch
>
>
> No Empty Key restriction for Native Vector MapJoin added with HIVE-11394 is
> unnecessary. It caused Llap orc_llap.q test to timeout on Hive QA because
> regular VectorMapJoinOperator is too slow.
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