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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-308) UNION ALL should create different destination directories for different operands
Date Mon, 09 Mar 2009 09:42:50 GMT

     [ https://issues.apache.org/jira/browse/HIVE-308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zheng Shao updated HIVE-308:
----------------------------

       Resolution: Fixed
    Fix Version/s: 0.3.0
         Assignee: Zheng Shao
     Release Note: HIVE-308. UNION ALL: FileSinkOperator now adds files in case the target
exists. (zshao)
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

Committed revision 751583.

> UNION ALL should create different destination directories for different operands
> --------------------------------------------------------------------------------
>
>                 Key: HIVE-308
>                 URL: https://issues.apache.org/jira/browse/HIVE-308
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.3.0
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>            Priority: Blocker
>             Fix For: 0.3.0
>
>         Attachments: HIVE-308.1.patch
>
>
> The following query hangs:
> {code} 
> select * from (select 1 from zshao_lazy union all select 2 from zshao_lazy) a;
> {code} 
> The following query produce wrong results: (one map-reduce job overwrite/cannot overwrite
the result of the other)
> {code} 
> select * from (select 1 as id from zshao_lazy cluster by id union all select 2 as id
from zshao_meta) a;
> {code} 
> The reason of both is that the destination directory of the file sink operator conflicts
with each other.

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