[jira] [Commented] (DRILL-1811) select A, * from ... crashes JVM

["Sean Hsuan-Yi Chu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-1811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236087#comment-14236087 ] 

Sean Hsuan-Yi Chu commented on DRILL-1811:
------------------------------------------

Aman Can you help review it? Thanks!

> select A, * from ... crashes JVM
> --------------------------------
>
>                 Key: DRILL-1811
>                 URL: https://issues.apache.org/jira/browse/DRILL-1811
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Operators
>            Reporter: Sean Hsuan-Yi Chu
>            Assignee: Aman Sinha
>            Priority: Blocker
>             Fix For: 0.8.0
>
>         Attachments: DRILL-1811.1.patch
>
>
> while "select *, A from ..." works,  select A, * from ... crashes JVM. 
> As I discussed with Aman, the reason for the crash is because drill is not handling wildcard "*" correctly. So the operator Project "transfers" the requested column A to the output instead of "copy". 
> So when drill is trying to project to the second operand in the select clause (i.e., "*" ), nothing will come out of that column. 



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