1. Deploy *-vdb.xml declaring following procedure <?xml version= "1.0" encoding= "UTF-8" standalone= "yes" ?> <vdb name= "ProcVDB" version= "1" > <description> ProcVDB </description> <model visible = "true" type = "VIRTUAL" name = "pr" > <metadata type = "DDL" > <![CDATA[ create virtual procedure pr() as begin error 'a' ; end ;; ]]> </metadata> </model> </vdb> 2. Execute query in SQuirrel BEGIN LOOP ON ( SELECT 1 union all select 2) AS market BEGIN CALL pr.pr(); EXCEPTION e END END ;; 3. Query fails with the stack trace 12:01:41,128 ERROR [org.teiid.PROCESSOR] (Worker9_QueryProcessorQueue62) 9qA/iFk+7uCp TEIID30019 Unexpected exception for request 9qA/iFk+7uCp.16: java.lang.AssertionError: Assertion failed. at org.teiid.core.util.Assertion.failed(Assertion.java:69) at org.teiid.core.util.Assertion.assertTrue(Assertion.java:64) at org.teiid.core.util.Assertion.assertTrue(Assertion.java:56) at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:137) at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:111) at org.teiid.query.processor.BatchIterator.finalRow(BatchIterator.java:65) at org.teiid.common.buffer.AbstractTupleSource.getCurrentTuple(AbstractTupleSource.java:66) at org.teiid.query.processor.BatchIterator.getCurrentTuple(BatchIterator.java:80) at org.teiid.common.buffer.AbstractTupleSource.hasNext(AbstractTupleSource.java:88) at org.teiid.query.processor.proc.ProcedurePlan.executePlan(ProcedurePlan.java:612) at org.teiid.query.processor.proc.CreateCursorResultSetInstruction.process(CreateCursorResultSetInstruction.java:65) at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:389) at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:297) at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:269) at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:148) at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:111) at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:160) at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:142) at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:480) at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:350) at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:47) at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:276) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:277) at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:115) at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:206) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)