[teiid-issues] [JBoss JIRA] (TEIID-3143) LOOP on UNION leads to java.lang.ClassCastException

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins closed TEIID-3143.
---------------------------------


> LOOP on UNION leads to java.lang.ClassCastException
> ---------------------------------------------------
>
>                 Key: TEIID-3143
>                 URL: https://issues.jboss.org/browse/TEIID-3143
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Query Engine
>    Affects Versions: 6.0.0
>            Reporter: Alex K.
>            Assignee: Steven Hawkins
>             Fix For: 8.7.1, 8.9
>
>
> the following  query
>  
> {code:sql}
> begin  
>     LOOP ON (  
>         select a  
>         FROM schema.table  
>         union  
>         select b       
>         FROM schema.table  
>         ) as cur  
>     begin  
>     end  
> end  
> {code}
> results in this exception (Teiid-8.9.0-Beta-1) on my machine
>  
> {code:java}
> ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue11) H10b/QbWzo4K TEIID30019 Unexpected exception forrequest H10b/QbWzo4K.6: java.lang.ClassCastException: org.teiid.query.sql.lang.SetQuery cannot be casttoorg.teiid.query.sql.lang.Query  
>         at org.teiid.query.sql.proc.LoopStatement.clone(LoopStatement.java:136) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.query.sql.LanguageObject$Util.deepClone(LanguageObject.java:57) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.query.sql.proc.Block.clone(Block.java:147) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.query.sql.proc.CreateProcedureCommand.clone(CreateProcedureCommand.java:116) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.Request.generatePlan(Request.java:377) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.Request.processRequest(Request.java:437) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.RequestWorkItem.processNew(RequestWorkItem.java:609) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:315) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:254) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:274) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) [teiid-engine-8.9.0.Beta1.jar:8.9.0.Beta1]  
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_51]  
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_51]  
>         atjava.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_51] 
> {code}



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