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