[jira] [Reopened] (DRILL-1886) NPE in queries with a project on a subquery with Union all

["Parth Chandra (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-1886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Parth Chandra reopened DRILL-1886:
----------------------------------
      Assignee: Ramana Inukonda Nagaraj  (was: Parth Chandra)

Appears to be causing client hang in some cases. Need a reproduction.


> NPE in queries with a project on a subquery with Union all
> ----------------------------------------------------------
>
>                 Key: DRILL-1886
>                 URL: https://issues.apache.org/jira/browse/DRILL-1886
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Parth Chandra
>            Assignee: Ramana Inukonda Nagaraj
>             Fix For: 0.8.0
>
>         Attachments: DRILL-1886.patch, mobile-small-copy.json.gz
>
>
> The following query (data file attached) causes a NPE:
> select trans_id from 
> (
>    select trans_id, trans_id as ti from dfs.`mobile-small-copy.json.gz` where trans_id = 19999 
> union all 
>   select trans_id, trans_id as ti from dfs.`mobile-small-copy.json.gz` where trans_id = 19998
> )



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