[teiid-issues] [JBoss JIRA] (TEIID-2457) Using jdbc-simple translator produces Assertion error

[Van Halbert (JIRA)]

Van Halbert created TEIID-2457:
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             Summary: Using jdbc-simple translator produces Assertion error
                 Key: TEIID-2457
                 URL: https://issues.jboss.org/browse/TEIID-2457
             Project: Teiid
          Issue Type: Bug
          Components: JDBC Connector
    Affects Versions: 7.7.6
            Reporter: Van Halbert
            Assignee: Steven Hawkins


A sample query which produced the error is: SELECT IntKey FROM BQT1.SmallA INTERSECT SELECT IntNum FROM BQT1.SmallB ORDER BY INTKEY

How to reproduce:  Run the query using a client such as Squirrel multiple times.  The results varies from returning an Assertion to returning actual results.  In my test I ran the query five times and it returned actual results twice and the Assertion 3 times.  The Assertion can be seen below.  

2013-04-03 16:00:42,190 ERROR [org.teiid.PROCESSOR] (Worker4_QueryProcessorQueue146) Unexpected exception for request JyDs6MZ6d9zG.24
java.lang.AssertionError: ASSERTION FAILED: expected reference to be not null
	at org.teiid.core.util.Assertion.failed(Assertion.java:73)
	at org.teiid.core.util.Assertion.isNotNull(Assertion.java:100)
	at org.teiid.core.util.Assertion.isNotNull(Assertion.java:92)
	at org.teiid.common.buffer.TupleBuffer.getBatch(TupleBuffer.java:217)
	at org.teiid.common.buffer.TupleBuffer$1.getBatch(TupleBuffer.java:331)
	at org.teiid.common.buffer.AbstractTupleSource.getCurrentTuple(AbstractTupleSource.java:61)
	at org.teiid.common.buffer.AbstractTupleSource.hasNext(AbstractTupleSource.java:91)
	at org.teiid.query.processor.relational.MergeJoinStrategy.process(MergeJoinStrategy.java:163)
	at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:212)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:280)
	at org.teiid.query.processor.BatchIterator.finalRow(BatchIterator.java:70)
	at org.teiid.common.buffer.AbstractTupleSource.getCurrentTuple(AbstractTupleSource.java:69)
	at org.teiid.query.processor.BatchIterator.getCurrentTuple(BatchIterator.java:85)
	at org.teiid.common.buffer.AbstractTupleSource.nextTuple(AbstractTupleSource.java:48)
	at org.teiid.query.processor.relational.SortUtility.initialSort(SortUtility.java:248)
	at org.teiid.query.processor.relational.SortUtility.sort(SortUtility.java:185)
	at org.teiid.query.processor.relational.SortNode.sortPhase(SortNode.java:99)
	at org.teiid.query.processor.relational.SortNode.nextBatchDirect(SortNode.java:88)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:280)
	at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:100)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:280)
	at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:176)
	at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:139)
	at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:105)
	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:147)
	at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:375)
	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:288)
	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:49)
	at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:216)
	at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:244)
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:122)
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:292)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:722)

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