[jira] [Commented] (DRILL-1220) Process the 'star' columns appropriately in Project operator based on new plans

["Jacques Nadeau (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-1220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14078932#comment-14078932 ] 

Jacques Nadeau commented on DRILL-1220:
---------------------------------------

fixed by 0d6befc or earlier

> Process the 'star' columns appropriately in Project operator based on new plans
> -------------------------------------------------------------------------------
>
>                 Key: DRILL-1220
>                 URL: https://issues.apache.org/jira/browse/DRILL-1220
>             Project: Apache Drill
>          Issue Type: Improvement
>            Reporter: Aman Sinha
>            Assignee: DrillCommitter
>         Attachments: 0001-DRILL-1220-Process-the-star-columns-in-ProjectRecord.patch
>
>
> For queries that involve  '*'  (star) in the SELECT list,  the Drill plan has to perform special handling of such columns since it must distinguish columns coming from both sides of a join.  Recent planner enhancements add prefixes at the appropriate intermediate Project nodes and remove it at the top level Project.  
> The Project execution operator must be enhanced in order to correctly process such 'annotated' Project expressions that are handed by the plan.  This issue tracks this enhancement. 



--
This message was sent by Atlassian JIRA
(v6.2#6252)