[teiid-issues] [JBoss JIRA] (TEIID-5276) ClassCastException with OData4 translator when using COUNT function without GROUP BY clause

Steven Hawkins (JIRA) issues at jboss.org
Mon Mar 12 08:39:01 EDT 2018 

    [ https://issues.jboss.org/browse/TEIID-5276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544470#comment-13544470 ] 

Steven Hawkins commented on TEIID-5276:
---------------------------------------

I'm getting a different error on master, but this appears to still be a problem.

> ClassCastException with OData4 translator when using COUNT function without GROUP BY clause
> -------------------------------------------------------------------------------------------
>
>                 Key: TEIID-5276
>                 URL: https://issues.jboss.org/browse/TEIID-5276
>             Project: Teiid
>          Issue Type: Bug
>          Components: OData
>    Affects Versions: 8.12.11.6_4
>            Reporter: Jan Martiska
>            Assignee: Steven Hawkins
>
> Given that {{BQT1.SmallA}} is backed by OData4 translator, I'm unable to run any queries including the {{COUNT}} aggregation function unless I'm also including a GROUP BY clause (if I include any GROUP BY, it seems to work). 
> Example:
> {noformat}
> SELECT COUNT(*) FROM BQT1.SmallA
> {noformat}
> Full exception:
> {noformat}
> 10:30:22,795 WARN  [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue140) TEIID30020 Processing exception for request nIb4rK3XZNgv.18 'TEIID30504 odata4: com.fasterxml.jackson.databind.node.IntNode cannot be cast to com.fasterxml.jackson.databind.node.ObjectNode'. Originally TeiidProcessingException JsonEntitySetDeserializer.java:53.: org.teiid.core.TeiidProcessingException: TEIID30504 odata4: com.fasterxml.jackson.databind.node.IntNode cannot be cast to com.fasterxml.jackson.databind.node.ObjectNode
> 	at org.teiid.dqp.internal.process.DataTierTupleSource.exceptionOccurred(DataTierTupleSource.java:401) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.DataTierTupleSource.nextTuple(DataTierTupleSource.java:161) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:391) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:102) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:472) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:348) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:274) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_151]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_151]
> 	at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_151]
> Caused by: org.teiid.translator.TranslatorException: com.fasterxml.jackson.databind.node.IntNode cannot be cast to com.fasterxml.jackson.databind.node.ObjectNode
> 	at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.handleError(ConnectorWorkItem.java:305) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:364) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_151]
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_151]
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_151]
> 	at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_151]
> 	at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:211) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at com.sun.proxy.$Proxy91.execute(Unknown Source)
> 	at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:306) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:112) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_151]
> 	at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:65) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	... 6 more
> Caused by: java.lang.ClassCastException: com.fasterxml.jackson.databind.node.IntNode cannot be cast to com.fasterxml.jackson.databind.node.ObjectNode
> 	at org.apache.olingo.client.core.serialization.JsonEntitySetDeserializer.doDeserialize(JsonEntitySetDeserializer.java:53)
> 	at org.apache.olingo.client.core.serialization.JsonDeserializer.toEntitySet(JsonDeserializer.java:410)
> 	at org.teiid.translator.odata4.ODataResponse.parsePayload(ODataResponse.java:65)
> 	at org.teiid.translator.odata4.ODataResponse.<init>(ODataResponse.java:54)
> 	at org.teiid.translator.odata4.ODataQueryExecution$1.<init>(ODataQueryExecution.java:96)
> 	at org.teiid.translator.odata4.ODataQueryExecution.execute(ODataQueryExecution.java:95)
> 	at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:361) [teiid-engine-8.12.11.6_4-redhat-64-12.jar:8.12.11.6_4-redhat-64-12]
> 	... 17 more
> {noformat}



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