[teiid-issues] [JBoss JIRA] (TEIID-4953) JOIN of CTEs fails if one of them is dependent and has window functions with inner DISTINCT in underlying queries

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-4953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-4953.
-----------------------------------
    Fix Version/s: 9.1.5
                   9.2.4
       Resolution: Done


Added a call to assign with clauses for intermediate with clauses.

> JOIN of CTEs fails if one of them is dependent and has window functions with inner DISTINCT in underlying queries
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: TEIID-4953
>                 URL: https://issues.jboss.org/browse/TEIID-4953
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 9.3
>         Environment: teiid-9.3.0.Final on WildFly Full 10.0.0.Final (WildFly Core 2.0.10.Final)
>            Reporter: dalex dalex
>            Assignee: Steven Hawkins
>            Priority: Blocker
>             Fix For: 10.0, 9.1.5, 9.3.1, 9.2.4
>
>
> Running the following script:
> {code:sql|linenumbers|highlight=6,10}
> with 
> 	CTE as (
> 		select a from test_pg.test_a
> 	),
> 	CTE_WIN_FUNCT as (
> 		select count(distinct a) over (partition by a) as c from CTE
> 	),
> 	CTE_UNION as (
> 		select c from CTE_WIN_FUNCT 
> 		union all 
> 		select c from CTE_WIN_FUNCT
> 	)
> select * from CTE join CTE_UNION on true ;;
> {code}
> leads to the following error message:
> {code}
> 2017-06-07 14:11:09,772 WARN  [org.teiid.CONNECTOR] (Worker5_QueryProcessorQueue35) QOZCg3H0H+do Connector worker process failed for atomic-request=QOZCg3H0H+do.12.3.2: org.teiid.tra
> nslator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.a FROM CTE AS g_0]
>         at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:131)
>         at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:365)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:220)
>         at com.sun.proxy.$Proxy28.execute(Unknown Source)
>         at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:306)
>         at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:112)
>         at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:65)
>         at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:282)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:745)
> Caused by: org.postgresql.util.PSQLException: relation "cte" does not exist
>   Position: 19
>         at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157)
>         at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886)
>         at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
>         at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555)
>         at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:417)
>         at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:302)
>         at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:504)
>         at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:123)
>         ... 18 more
> {code}
> but removing window function completely or just DISTINCT on line 6 makes problem to go away. Removing union all in the "CTE_UNION" eliminates it too.



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