[teiid-issues] [JBoss JIRA] (TEIID-4262) Wrong result (empty or NULL) running a CTE

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-4262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins updated TEIID-4262:
----------------------------------
    Priority: Blocker  (was: Major)


> Wrong result (empty or NULL) running a CTE
> ------------------------------------------
>
>                 Key: TEIID-4262
>                 URL: https://issues.jboss.org/browse/TEIID-4262
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 9.0
>            Reporter: Salvatore R
>            Assignee: Steven Hawkins
>            Priority: Blocker
>             Fix For: 9.0
>
>
> The following query returns an empty result instead of 1:
> {code:sql}
> WITH 
> 	alias as (SELECT 1 as a),
> 	alias2 as (select t2.a as a1, t1.a from alias t1 join (SELECT 1 as a) t2 on t1.a=t2.a),
> 	alias3 as (select t2.a as a1, t1.a from alias t1 join alias2 t2 on t1.a=t2.a)
> SELECT alias3.a1 FROM alias2 join alias3 on alias3.a=alias2.a or alias3.a>alias2.a
> {code}
> This similar query (using LEFT instead of INNER join) returns NULL instead of 1:
> {code:sql}
> WITH 
> 	alias as (SELECT 1 as a),
> 	alias2 as (select t2.a as a1, t1.a from alias t1 join (SELECT 1 as a) t2 on t1.a=t2.a),
> 	alias3 as (select t2.a as a1, t1.a from alias t1 join alias2 t2 on t1.a=t2.a)
> SELECT alias3.a1 FROM alias2 left join alias3 on alias3.a=alias2.a or alias3.a>alias2.a
> {code}



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