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Date: Fri, 14 Oct 2016 07:16:22 +0000 (UTC)
From: "Jesus Camacho Rodriguez (JIRA)" <jira@apache.org>
To: issues@hive.apache.org
Message-ID: <JIRA.13012271.1476429183000.827109.1476429382253@Atlassian.JIRA>
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References: <JIRA.13012271.1476429183000@Atlassian.JIRA> <JIRA.13012271.1476429183151@arcas>
Subject: [jira] [Work started] (HIVE-14959) Support distinct with windowing
 when CBO is disabled
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archived-at: Fri, 14 Oct 2016 07:16:24 -0000


     [ https://issues.apache.org/jira/browse/HIVE-14959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HIVE-14959 started by Jesus Camacho Rodriguez.
------------------------------------------------------
> Support distinct with windowing when CBO is disabled
> ----------------------------------------------------
>
>                 Key: HIVE-14959
>                 URL: https://issues.apache.org/jira/browse/HIVE-14959
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 2.1.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>
> For instance, the following query with CBO off:
> {code:sql}
> select distinct last_value(i) over ( partition by si order by i ),
>   first_value(t)  over ( partition by si order by i )
> from over10k limit 50;
> {code}
> will fail, with the following message:
> {noformat}
> SELECT DISTINCT not allowed in the presence of windowing functions when CBO is off
> {noformat}


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