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https://issues.apache.org/jira/browse/HIVE-7016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13993438#comment-13993438
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Navis commented on HIVE-7016:
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[~selinazh] You are right. Fail of testUniqueErrorCode is caused by that.
Thanks.
> Hive returns wrong results when execute UDF on top of DISTINCT column
> ---------------------------------------------------------------------
>
> Key: HIVE-7016
> URL: https://issues.apache.org/jira/browse/HIVE-7016
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.12.0, 0.13.1
> Reporter: Selina Zhang
> Assignee: Navis
> Fix For: 0.14.0
>
> Attachments: HIVE-7016.1.patch.txt
>
>
> The following query returns wrong result:
> select hash(distinct value) from table;
> This kind of query should be identified as syntax error. However, Hive
> ignores DISTINCT and returns the result.
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