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https://issues.apache.org/jira/browse/HIVE-4342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13637023#comment-13637023
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Mihir Kulkarni commented on HIVE-4342:
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[~navis]
I have updated the attachments which contain the command script to generate
schema, the data to be used with the command script and the exact query! I hope
you are able to reproduce the NPE with this information.
> NPE for query involving UNION ALL with nested JOIN and UNION ALL
> ----------------------------------------------------------------
>
> Key: HIVE-4342
> URL: https://issues.apache.org/jira/browse/HIVE-4342
> Project: Hive
> Issue Type: Bug
> Components: Logging, Metastore, Query Processor
> Affects Versions: 0.9.0
> Environment: Red Hat Linux VM with Hive 0.9 and Hadoop 2.0
> Reporter: Mihir Kulkarni
> Assignee: Navis
> Priority: Critical
> Attachments: HiveCommands.txt, Query.txt, sourceData1.txt,
> sourceData2.txt
>
>
> UNION ALL query with JOIN in first part and another UNION ALL in second part
> gives NPE.
> bq. JOIN
> UNION ALL
> bq. UNION ALL
> Attachments:
> 1. HiveCommands.txt : command script to setup schema for query under
> consideration.
> 2. sourceData1.txt and sourceData2.txt : required for above command script.
> 3. Query.txt : Exact query which produces NPE.
> Attached files contain the schema and exact query which fails on Hive 0.9.
> It is worthwhile to note that the same query executes successfully on Hive
> 0.7.
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