[teiid-issues] [JBoss JIRA] (TEIID-4115) XMLTABLE single element in sequence invalid conversion

XMLTABLE single element in sequence invalid conversion ------------------------------------------------------ Key: TEIID-4115 URL: https://issues.jboss.org/browse/TEIID-4115 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 8.12.5 Reporter: Jan Stastny Assignee: Steven Hawkins Fix For: 9.0, 8.12.5, 8.13.4 There is a possibility to handle xml element sequences as arrays when using XMLTABLE function. When there's only one element in the sequence, an exception is thrown: {code:plain} org.teiid.jdbc.TeiidSQLException: TEIID10076 Invalid conversion from type class java.lang.String with value 'first' to type class [Ljava.lang.String; at org.teiid.jdbc.TeiidSQLException.create(TeiidSQLException.java:135) at org.teiid.jdbc.TeiidSQLException.create(TeiidSQLException.java:71) at org.teiid.jdbc.StatementImpl.postReceiveResults(StatementImpl.java:703) at org.teiid.jdbc.StatementImpl.access$100(StatementImpl.java:64) at org.teiid.jdbc.StatementImpl$2.onCompletion(StatementImpl.java:542) at org.teiid.client.util.ResultsFuture.done(ResultsFuture.java:135) at org.teiid.client.util.ResultsFuture.access$200(ResultsFuture.java:40) at org.teiid.client.util.ResultsFuture$1.receiveResults(ResultsFuture.java:79) at org.teiid.net.socket.SocketServerInstanceImpl.receivedMessage(SocketServerInstanceImpl.java:268) at org.teiid.net.socket.SocketServerInstanceImpl.read(SocketServerInstanceImpl.java:306) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.teiid.net.socket.SocketServerConnectionFactory$ShutdownHandler.invoke(SocketServerConnectionFactory.java:98) at com.sun.proxy.$Proxy6.read(Unknown Source) at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.get(SocketServerInstanceImpl.java:405) at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:551) at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:404) at org.teiid.jdbc.StatementImpl.executeQuery(StatementImpl.java:338) at org.jboss.qe.functions.xml.XmlTableTest.testXmlTableSequenceArrayOneElement(XmlTableTest.java:74) 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:497) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80) at org.testng.internal.Invoker.invokeMethod(Invoker.java:714) at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901) at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111) at org.testng.TestRunner.privateRun(TestRunner.java:767) at org.testng.TestRunner.run(TestRunner.java:617) at org.testng.SuiteRunner.runTest(SuiteRunner.java:334) at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291) at org.testng.SuiteRunner.run(SuiteRunner.java:240) at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) at org.testng.TestNG.runSuitesSequentially(TestNG.java:1198) at org.testng.TestNG.runSuitesLocally(TestNG.java:1123) at org.testng.TestNG.run(TestNG.java:1031) at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:70) at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:108) at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:111) 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:497) at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164) at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110) at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172) at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70) Caused by: org.teiid.core.types.TransformationException: TEIID10076 Invalid conversion from type class java.lang.String with value 'first' to type class [Ljava.lang.String; at org.teiid.core.types.DataTypeManager.transformValue(DataTypeManager.java:940) at org.teiid.core.types.DataTypeManager.transformValue(DataTypeManager.java:928) at org.teiid.query.function.FunctionDescriptor.importValue(FunctionDescriptor.java:322) at org.teiid.query.processor.relational.XMLTableNode.getValue(XMLTableNode.java:376) at org.teiid.query.processor.relational.XMLTableNode.processRow(XMLTableNode.java:341) at org.teiid.query.processor.relational.XMLTableNode.nextBatchDirect(XMLTableNode.java:225) at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:282) at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:150) at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:282) at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145) at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151) at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114) at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164) at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146) at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:470) at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:348) at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:274) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276) 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) {code} The invocation of XMLTABLE function is as follows: {code:sql} CREATE VIEW SEQUENCE_AS_ARRAY_ONE_ELEMENT(x string[]) AS select * from xmltable('/a' passing convert('<a><b>first</b></a>', xml) columns x string[] path 'b') as x; {code}