[teiid-issues] [JBoss JIRA] (TEIID-2564) Netezza queries returning "TEIID30328 Unable to evaluate A.IntKey: No value was available"

[Warren Gibson (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-2564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Warren Gibson updated TEIID-2564:
---------------------------------

    Attachment: server.log

    
> Netezza queries returning "TEIID30328 Unable to evaluate A.IntKey: No value was available"
> ------------------------------------------------------------------------------------------
>
>                 Key: TEIID-2564
>                 URL: https://issues.jboss.org/browse/TEIID-2564
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 8.4
>            Reporter: Warren Gibson
>            Assignee: Steven Hawkins
>         Attachments: server.log
>
>
> Netezza queries returning "TEIID30328 Unable to evaluate A.IntKey:
> No value was available".  Queries involved all use HAVING.  
> The log file is attached.  
> A couple example queries are:
> SELECT A.INTKEY, A.STRINGNUM FROM BQT1.SMALLA AS A WHERE CONVERT(LONGNUM,
> STRING) = 8 GROUP BY A.INTKEY, A.STRINGNUM HAVING A.STRINGNUM = (SELECT
> MAX(B.STRINGNUM) FROM BQT1.SMALLA AS B WHERE A.INTKEY = B.INTKEY
> SELECT A.INTKEY, A.FLOATNUM FROM BQT1.SMALLA AS A WHERE NOT (A.INTNUM IS
> NULL) GROUP BY A.INTKEY, A.FLOATNUM HAVING A.FLOATNUM = (SELECT
> MIN(B.FLOATNUM) FROM BQT1.SMALLA AS B WHERE A.INTKEY = B.INTKEY
> Analysis from engineering:
> The issue is happening when a the subquery is converted to a join (this is happening under to covers based upon the costing of the subquery plan) and the correlated column is a grouping expression.
> If the subplan is not converted to a join or the correlated column is not a grouping expression, then there is no issue.

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