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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3544) union involving double column with a map join subquery will fail or give wrong results
Date Wed, 09 Jan 2013 10:27:51 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13548048#comment-13548048
] 

Hudson commented on HIVE-3544:
------------------------------

Integrated in Hive-trunk-hadoop2 #54 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/54/])
    HIVE-3544 union involving double column with a map join subquery will fail or give wrong
results
(Kevin Wilfong via namit) (Revision 1400260)

     Result = ABORTED
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1400260
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ColumnInfo.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/SelectOperator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/ColumnPrunerProcCtx.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/ColumnPrunerProcFactory.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/SelectDesc.java
* /hive/trunk/ql/src/test/queries/clientpositive/skewjoinopt11.q
* /hive/trunk/ql/src/test/queries/clientpositive/union32.q
* /hive/trunk/ql/src/test/results/clientpositive/groupby_sort_1.q.out
* /hive/trunk/ql/src/test/results/clientpositive/groupby_sort_skew_1.q.out
* /hive/trunk/ql/src/test/results/clientpositive/ql_rewrite_gbtoidx.q.out
* /hive/trunk/ql/src/test/results/clientpositive/skewjoinopt11.q.out
* /hive/trunk/ql/src/test/results/clientpositive/type_widening.q.out
* /hive/trunk/ql/src/test/results/clientpositive/union32.q.out
* /hive/trunk/ql/src/test/results/compiler/plan/union.q.xml

                
> union involving double column with a map join subquery will fail or give wrong results
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-3544
>                 URL: https://issues.apache.org/jira/browse/HIVE-3544
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.10.0
>            Reporter: Kevin Wilfong
>            Assignee: Kevin Wilfong
>             Fix For: 0.10.0
>
>         Attachments: HIVE-3544.1.patch.txt, HIVE-3544.2.patch.txt, HIVE-3544.3.patch.txt,
HIVE-3544.4.patch.txt
>
>
> The following query fails:
> select * from (select cast(a.key as bigint) as key from src a join src b on a.key = b.key
union all select cast(key as double) as key from src)a
> The following query gives wrong results:
> select * from (select cast(a.key as bigint) as key, cast(b.key as double) as value from
src a join src b on a.key = b.key union all select cast(key as double) as key, cast(key as
string) as value from src)a
> But the following query runs fine:
> select * from (select cast(a.key as bigint) as key from src a union all select cast(key
as double) as key from src)a

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