[ 
https://issues.apache.org/jira/browse/LENS-835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14972973#comment-14972973
 ] 

Hadoop QA commented on LENS-835:
--------------------------------

Applied patch: 
[LENS-835.patch|https://issues.apache.org/jira/secure/attachment/12768571/LENS-835.patch]
 and ran command: mvn clean install. Result: Failure. Build Job: 
https://builds.apache.org/job/PreCommit-Lens-Build/147/

> Optimizing fact subquery by removing non aggregated expression columns from 
> group by clause
> -------------------------------------------------------------------------------------------
>
>                 Key: LENS-835
>                 URL: https://issues.apache.org/jira/browse/LENS-835
>             Project: Apache Lens
>          Issue Type: Improvement
>          Components: driver-jdbc
>            Reporter: Sushil Mohanty
>            Assignee: Sushil Mohanty
>         Attachments: LENS-835.patch
>
>
> Currently the fact keys used  in SQL are part of group by clause by default. 
> If single row functions e.g case,  having fact keys part of it and used in an 
> aggregate expression such keys need to be removed from fact subquery group by 
> clause.
> Eg. sum(case when fact.key1 = '123' then msr1 when fact.key2 = '345' then 
> msr2 end) 
>  



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to