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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-1811) select A, * from ... crashes JVM
Date Sat, 06 Dec 2014 23:08:12 GMT

    [ https://issues.apache.org/jira/browse/DRILL-1811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236995#comment-14236995
] 

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

New Patch can pass all tests, including local full build. Aman, can you take another look
? 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, DRILL-1811.2.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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