[teiid-issues] [JBoss JIRA] (TEIID-5136) Osisoft translator - NPE when running query with LATERAL JOIN

[Ramesh Reddy (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-5136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13489956#comment-13489956 ] 

Ramesh Reddy commented on TEIID-5136:
-------------------------------------

[~van.halbert] TVF functions is, we used LATERAL JOIN to provide functionality for TVF. Now [~asmigala] is using the same in as general LATERAL JOIN scenarios and running into the issue. His comment was to avoid supporting it. If I remove the support for LATERAL JOIN then TVF does not work, and I do not think we have that fine-grained capability at translator level where I can open in some situations, not in others. Maybe we can simply fail with exception.

> Osisoft translator - NPE when running query with LATERAL JOIN
> -------------------------------------------------------------
>
>                 Key: TEIID-5136
>                 URL: https://issues.jboss.org/browse/TEIID-5136
>             Project: Teiid
>          Issue Type: Bug
>          Components: JDBC Connector
>            Reporter: Andrej Šmigala
>            Assignee: Ramesh Reddy
>             Fix For: 10.1
>
>
> Running the following query:
> {code:sql}
> SELECT bqt2.smalla.intkey, g2.intkey, bqt2.smalla.bytenum FROM bqt2.smalla LEFT JOIN LATERAL (SELECT intkey FROM bqt2.mediuma WHERE bqt2.smalla.bytenum = bqt2.mediuma.bytenum) AS g2 ON true
> {code}
> results in a NPE in teiid (before sending source src command).
> Stacktrace:
> {noformat}
> Connector worker process failed for atomic-request=vEbs99yd+srV.1.0.1: java.lang.NullPointerException
>         at org.teiid.translator.jdbc.pi.PIExecutionFactory.translate(PIExecutionFactory.java:273) [translator-jdbc-8.12.11.6_4.jar:8.12.11.6_4]
>         at org.teiid.translator.jdbc.SQLConversionVisitor.append(SQLConversionVisitor.java:111) [translator-jdbc-8.12.11.6_4.jar:8.12.11.6_4]
>         at org.teiid.language.visitor.SQLStringVisitor.append(SQLStringVisitor.java:106) [teiid-api-8.12.11.6_4-redhat-64-7.jar:8.12.11.6_4-redhat-64-7]
>         at org.teiid.language.visitor.SQLStringVisitor.visit(SQLStringVisitor.java:767) [teiid-api-8.12.11.6_4-redhat-64-7.jar:8.12.11.6_4-redhat-64-7]
>         at org.teiid.language.Select.acceptVisitor(Select.java:110) [teiid-api-8.12.11.6_4-redhat-64-7.jar:8.12.11.6_4-redhat-64-7]
>         at org.teiid.language.visitor.AbstractLanguageVisitor.visitNode(AbstractLanguageVisitor.java:51) [teiid-api-8.12.11.6_4-redhat-64-7.jar:8.12.11.6_4-redhat-64-7]
>         at org.teiid.language.visitor.SQLStringVisitor.append(SQLStringVisitor.java:91) [teiid-api-8.12.11.6_4-redhat-64-7.jar:8.12.11.6_4-redhat-64-7]
>         at org.teiid.translator.jdbc.SQLConversionVisitor.append(SQLConversionVisitor.java:130) [translator-jdbc-8.12.11.6_4.jar:8.12.11.6_4]
>         at org.teiid.translator.jdbc.TranslatedCommand.translateCommand(TranslatedCommand.java:76) [translator-jdbc-8.12.11.6_4.jar:8.12.11.6_4]
>         at org.teiid.translator.jdbc.JDBCBaseExecution.translateCommand(JDBCBaseExecution.java:120) [translator-jdbc-8.12.11.6_4.jar:8.12.11.6_4]
>         at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:114) [translator-jdbc-8.12.11.6_4.jar:8.12.11.6_4]
>         at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:363)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_141]
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_141]
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_141]
>         at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_141]
>         at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:211)
>         at com.sun.proxy.$Proxy79.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$1.call(DataTierTupleSource.java:108)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_141]
>         at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:65)
>         at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_141]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_141]
>         at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_141]
> {noformat}



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