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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2014/07/07 04:25:33 UTC
[jira] [Updated] (HIVE-5690) Support subquery for single sourced
multi query
[ https://issues.apache.org/jira/browse/HIVE-5690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Navis updated HIVE-5690:
------------------------
Attachment: HIVE-5690.6.patch.txt
> Support subquery for single sourced multi query
> -----------------------------------------------
>
> Key: HIVE-5690
> URL: https://issues.apache.org/jira/browse/HIVE-5690
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: D13791.1.patch, HIVE-5690.2.patch.txt, HIVE-5690.3.patch.txt, HIVE-5690.4.patch.txt, HIVE-5690.5.patch.txt, HIVE-5690.6.patch.txt
>
>
> Single sourced multi (insert) query is very useful for various ETL processes but it does not allow subqueries included. For example,
> {noformat}
> explain from src
> insert overwrite table x1 select * from (select distinct key,value) b order by key
> insert overwrite table x2 select * from (select distinct key,value) c order by value;
> {noformat}
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