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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-3258) Add support for non-scalar subqueries in expressions within HAVING clause
Date Thu, 02 Jul 2015 21:16:05 GMT

    [ https://issues.apache.org/jira/browse/DRILL-3258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612533#comment-14612533
] 

Sean Hsuan-Yi Chu commented on DRILL-3258:
------------------------------------------

I think the confusion came from the title of DRILL-1937. I already updated it to make it more
explicit and meaningful. 

> Add support for non-scalar subqueries in expressions within HAVING clause
> -------------------------------------------------------------------------
>
>                 Key: DRILL-3258
>                 URL: https://issues.apache.org/jira/browse/DRILL-3258
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Query Planning & Optimization
>            Reporter: Abhishek Girish
>            Assignee: Sean Hsuan-Yi Chu
>             Fix For: 1.2.0
>
>
> Drill currently does not support queries with non-scalar sub-queries (which return more
than one row) used within expressions. 
> {code:sql}
> SELECT ss_item_sk       
> FROM   store_sales 
> GROUP  BY ss_item_sk 
> HAVING Avg(ss_net_profit) > 2 * 
>               (SELECT avg(ss_net_profit) 
>               FROM   store_sales 
>               GROUP  BY ss_store_sk);
> {code}
> Such queries should be supported by Drill. 



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