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https://issues.apache.org/jira/browse/HIVE-12738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070297#comment-15070297
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Gunther Hagleitner commented on HIVE-12738:
-------------------------------------------
If I understand correctly:
When you're looking at a reduce vertex, at some point you might transition from
vector to row based processing. However, there's no way to come back from row
to vector, right?
So, when converting reduce work you just need to bail when the transition
happens, don't you?
> subquery with NOT IN failing due to ClassCastException
> ------------------------------------------------------
>
> Key: HIVE-12738
> URL: https://issues.apache.org/jira/browse/HIVE-12738
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: HIVE-12738.01.patch
>
>
> {code}
> create table student(
> name string,
> age int,
> gpa double)
> create table voter(
> name string,
> age int,
> registration string,
> contributions float)
> select *
> from student
> where not student.age in
> (select age from voter)
> order by age;
> {code}
> Fails in Tez -- Vectorized Reduce.
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