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https://issues.apache.org/jira/browse/HIVE-5690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13902899#comment-13902899
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Navis commented on HIVE-5690:
-----------------------------
Test fails seemed not related to this.
Could anyone review this? This patch extends versatility of single sourced
multi-query. For complex type columns in table, it's really useful.
> 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
>
>
> 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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