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From "Na Yang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-7870) Insert overwrite table query does not generate correct task plan
Date Thu, 28 Aug 2014 19:43:08 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Na Yang reassigned HIVE-7870:
-----------------------------

    Assignee: Na Yang  (was: Chao)

> Insert overwrite table query does not generate correct task plan
> ----------------------------------------------------------------
>
>                 Key: HIVE-7870
>                 URL: https://issues.apache.org/jira/browse/HIVE-7870
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Na Yang
>            Assignee: Na Yang
>              Labels: Spark-M1
>         Attachments: HIVE-7870.1-spark.patch
>
>
> Insert overwrite table query does not generate correct task plan when hive.optimize.union.remove
and hive.merge.sparkfiles properties are ON. 
> {noformat}
> set hive.optimize.union.remove=true
> set hive.merge.sparkfiles=true
> insert overwrite table outputTbl1
> SELECT * FROM
> (
> select key, 1 as values from inputTbl1
> union all
> select * FROM (
>   SELECT key, count(1) as values from inputTbl1 group by key
>   UNION ALL
>   SELECT key, 2 as values from inputTbl1
> ) a
> )b;
> select * from outputTbl1 order by key, values;
> {noformat}
> query result
> {noformat}
> 1	1
> 1	2
> 2	1
> 2	2
> 3	1
> 3	2
> 7	1
> 7	2
> 8	2
> 8	2
> 8	2
> {noformat}
> expected result:
> {noformat}
> 1	1
> 1	1
> 1	2
> 2	1
> 2	1
> 2	2
> 3	1
> 3	1
> 3	2
> 7	1
> 7	1
> 7	2
> 8	1
> 8	1
> 8	2
> 8	2
> 8	2
> {noformat}
> Move work is not working properly and some data are missing during move.



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