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Posted to issues@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2016/01/05 01:28:39 UTC

[jira] [Updated] (HIVE-12590) Repeated UDAFs with literals can produce incorrect result

     [ https://issues.apache.org/jira/browse/HIVE-12590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ashutosh Chauhan updated HIVE-12590:
------------------------------------
    Attachment: HIVE-12590.5.patch

> Repeated UDAFs with literals can produce incorrect result
> ---------------------------------------------------------
>
>                 Key: HIVE-12590
>                 URL: https://issues.apache.org/jira/browse/HIVE-12590
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Planning
>    Affects Versions: 1.0.1, 1.1.1, 1.2.1, 2.0.0
>            Reporter: Laljo John Pullokkaran
>            Assignee: Ashutosh Chauhan
>            Priority: Critical
>         Attachments: HIVE-12590.2.patch, HIVE-12590.3.patch, HIVE-12590.4.patch, HIVE-12590.4.patch, HIVE-12590.5.patch, HIVE-12590.patch
>
>
> Repeated UDAF with literals could produce wrong result.
> This is not a common use case, nevertheless a bug.
> hive> select max('pants'), max('pANTS') from t1 group by key;
>  Total MapReduce CPU Time Spent: 0 msec
> OK
> pANTS	pANTS
> pANTS	pANTS
> pANTS	pANTS
> pANTS	pANTS
> pANTS	pANTS
> Time taken: 296.252 seconds, Fetched: 5 row(s)



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