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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2018/01/19 22:15:05 UTC

[jira] [Closed] (FLINK-8355) DataSet Should not union a NULL row for AGG without GROUP BY clause.

     [ https://issues.apache.org/jira/browse/FLINK-8355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske closed FLINK-8355.
--------------------------------
       Resolution: Fixed
         Assignee: sunjincheng
    Fix Version/s: 1.4.1
                   1.5.0

Fixed for 1.4.1 with bfe3ff07c3b4cfa710b78db0db588086182884ef
Fixed for 1.5.0 with 20faf262de9bb52aa614ff2d989a49e8ea82b963

> DataSet Should not union a NULL row for AGG without GROUP BY clause.
> --------------------------------------------------------------------
>
>                 Key: FLINK-8355
>                 URL: https://issues.apache.org/jira/browse/FLINK-8355
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API &amp; SQL
>    Affects Versions: 1.5.0
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>            Priority: Major
>             Fix For: 1.5.0, 1.4.1
>
>
> Currently {{DataSetAggregateWithNullValuesRule}} will UINON a NULL row for  non grouped aggregate query. when {{CountAggFunction}} support {{COUNT(*)}}(FLINK-8325).  the result will incorrect.
> for example, if Tabble {{T1}} has 3 records. when we run the follow SQL in DataSet: 
> {code}
> SELECT COUNT(*) as cnt from Tab // cnt = 4(incorrect).
> {code}



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