[teiid-issues] [JBoss JIRA] (TEIID-4158) Hive/Impala translator - select distinct and gorup by is not supported in one query

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-4158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins closed TEIID-4158.
---------------------------------


> Hive/Impala translator - select distinct and gorup by is not supported in one query
> -----------------------------------------------------------------------------------
>
>                 Key: TEIID-4158
>                 URL: https://issues.jboss.org/browse/TEIID-4158
>             Project: Teiid
>          Issue Type: Bug
>          Components: JDBC Connector
>    Affects Versions: 8.12.x
>            Reporter: Juraj Duráni
>            Assignee: Steven Hawkins
>             Fix For: 9.0, 8.12.5
>
>
> Hive and Impala do not support combination of SELECT DISTINCT and GROUP BY in one SQL query.
> Messages of exceptions:
> Impala - cannot combine SELECT DISTINCT with aggregate functions or GROUP BY
> Hive - SELECT DISTINCT and GROUP BY can not be in the same query. 
> DDL:
> {code:sql}
> CREATE VIEW Agg2 (StringNum string)
>   AS SELECT BQT1.SmallA.StringNum FROM BQT1.SmallA GROUP BY BQT1.SmallA.StringNum HAVING BQT1.SmallA.StringNum = '1';
> {code}
> Query:
> {code:sql}
> SELECT DISTINCT StringNum FROM VQT.Agg2
> {code}



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