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Posted to issues@drill.apache.org by "Sean Hsuan-Yi Chu (JIRA)" <ji...@apache.org> on 2014/12/08 23:11:12 UTC
[jira] [Commented] (DRILL-1778) expressions along with * in the
select-clause makes drill return duplicated columns
[ https://issues.apache.org/jira/browse/DRILL-1778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14238551#comment-14238551 ]
Sean Hsuan-Yi Chu commented on DRILL-1778:
------------------------------------------
The operator could sometimes introduce weird behavior. DRILL-1825 showed similar problem. Things went wrong after I had added limit operator.
> expressions along with * in the select-clause makes drill return duplicated columns
> -----------------------------------------------------------------------------------
>
> Key: DRILL-1778
> URL: https://issues.apache.org/jira/browse/DRILL-1778
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Operators
> Environment: Embedded Mode
> Reporter: Sean Hsuan-Yi Chu
> Assignee: Aman Sinha
>
> *. The cases the operators pass through
> 1. select *, upper(TABLE_NAME) from INFORMATION_SCHEMA.`TABLES`;
> 2. select upper(TABLE_NAME), * from INFORMATION_SCHEMA.`TABLES`;
> *. The cases the operators fail
> 1. select upper(first_name),* from cp.`employee.json` limit 2
> => upper(first_name) was repeated "twice".
> 2. select *, upper(first_name) from cp.`employee.json` limit 2
> => Crashed JVM entirely
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