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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-13260) ReduceSinkDeDuplication throws exception when pRS key is empty
Date Fri, 11 Mar 2016 00:17:40 GMT

     [ https://issues.apache.org/jira/browse/HIVE-13260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pengcheng Xiong updated HIVE-13260:
-----------------------------------
    Status: Patch Available  (was: Open)

> ReduceSinkDeDuplication throws exception when pRS key is empty
> --------------------------------------------------------------
>
>                 Key: HIVE-13260
>                 URL: https://issues.apache.org/jira/browse/HIVE-13260
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-13260.01.patch, HIVE-13260.02.patch
>
>
> Steps to reproduce:
> {code}
> set hive.mapred.mode=nonstrict;
> set hive.cbo.enable=false;
> set hive.map.aggr=false;
> set hive.groupby.skewindata=false;
> set mapred.reduce.tasks=31;
> select compute_stats(a,16),compute_stats(b,16),compute_stats(c,16),compute_stats(d,16)
> from
> (
> select
>   avg(DISTINCT substr(src.value,5)) as a,
>   max(substr(src.value,5)) as b,
>   variance(substr(src.value,5)) as c,
>   var_samp(substr(src.value,5)) as d
>  from src)subq;
> {code}



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