hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12738) subquery with NOT IN failing due to ClassCastException
Date Wed, 23 Dec 2015 23:06:46 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070297#comment-15070297
] 

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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message