UCASE and LCASE functions do not work with CLOBs.

select lcase(convert('A', clob))

org.teiid.jdbc.TeiidSQLException: TEIID30328 Remote org.teiid.api.exception.query.ExpressionEvaluationException: TEIID30328 Unable to evaluate lcase(?): TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    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:723)
    at org.teiid.jdbc.StatementImpl.access$100(StatementImpl.java:65)
    at org.teiid.jdbc.StatementImpl$2.onCompletion(StatementImpl.java:561)
    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$1.receiveResults(ResultsFuture.java:79)
    at org.teiid.net.socket.SocketServerInstanceImpl.receivedMessage(SocketServerInstanceImpl.java:284)
    at org.teiid.net.socket.SocketServerInstanceImpl.read(SocketServerInstanceImpl.java:322)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.teiid.net.socket.SocketServerConnectionFactory$ShutdownHandler.invoke(SocketServerConnectionFactory.java:98)
    at com.sun.proxy.$Proxy1.read(Unknown Source)
    at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.get(SocketServerInstanceImpl.java:421)
    at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:570)
    at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:423)
    at org.teiid.jdbc.StatementImpl.executeQuery(StatementImpl.java:354)
    at DVConnection.main(DVConnection.java:110)
Caused by: org.teiid.core.TeiidProcessingException: TEIID30328 Remote org.teiid.api.exception.query.ExpressionEvaluationException: TEIID30328 Unable to evaluate lcase(?): TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:728)
    at org.teiid.query.processor.relational.ProjectNode.updateTuple(ProjectNode.java:194)
    at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:169)
    at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:282)
    at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145)
    at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151)
    at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114)
    at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164)
    at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146)
    at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:477)
    at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:349)
    at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51)
    at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:275)
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276)
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$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)
Caused by: org.teiid.core.TeiidProcessingException: TEIID30341 Remote org.teiid.api.exception.query.ExpressionEvaluationException: TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:1389)
    at org.teiid.query.eval.Evaluator.internalEvaluate(Evaluator.java:756)
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:726)
    ... 18 more
Caused by: org.teiid.core.TeiidProcessingException: TEIID30341 Remote org.teiid.api.exception.query.FunctionExecutionException: TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    at org.teiid.query.processor.relational.SubqueryAwareEvaluator.evaluatePushdown(SubqueryAwareEvaluator.java:438)
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:1387)
    ... 20 more
Exception in thread "main" org.teiid.jdbc.TeiidSQLException: TEIID30328 Remote org.teiid.api.exception.query.ExpressionEvaluationException: TEIID30328 Unable to evaluate lcase(?): TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    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:723)
    at org.teiid.jdbc.StatementImpl.access$100(StatementImpl.java:65)
    at org.teiid.jdbc.StatementImpl$2.onCompletion(StatementImpl.java:561)
    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$1.receiveResults(ResultsFuture.java:79)
    at org.teiid.net.socket.SocketServerInstanceImpl.receivedMessage(SocketServerInstanceImpl.java:284)
    at org.teiid.net.socket.SocketServerInstanceImpl.read(SocketServerInstanceImpl.java:322)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.teiid.net.socket.SocketServerConnectionFactory$ShutdownHandler.invoke(SocketServerConnectionFactory.java:98)
    at com.sun.proxy.$Proxy1.read(Unknown Source)
    at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.get(SocketServerInstanceImpl.java:421)
    at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:570)
    at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:423)
    at org.teiid.jdbc.StatementImpl.executeQuery(StatementImpl.java:354)
    at DVConnection.main(DVConnection.java:110)
Caused by: org.teiid.core.TeiidProcessingException: TEIID30328 Remote org.teiid.api.exception.query.ExpressionEvaluationException: TEIID30328 Unable to evaluate lcase(?): TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:728)
    at org.teiid.query.processor.relational.ProjectNode.updateTuple(ProjectNode.java:194)
    at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:169)
    at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:282)
    at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145)
    at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151)
    at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114)
    at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164)
    at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146)
    at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:477)
    at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:349)
    at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51)
    at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:275)
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276)
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$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)
Caused by: org.teiid.core.TeiidProcessingException: TEIID30341 Remote org.teiid.api.exception.query.ExpressionEvaluationException: TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:1389)
    at org.teiid.query.eval.Evaluator.internalEvaluate(Evaluator.java:756)
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:726)
    ... 18 more
Caused by: org.teiid.core.TeiidProcessingException: TEIID30341 Remote org.teiid.api.exception.query.FunctionExecutionException: TEIID30341 Function lcase is marked in the function metadata as a function that must be evaluated at the source.
    at org.teiid.query.processor.relational.SubqueryAwareEvaluator.evaluatePushdown(SubqueryAwareEvaluator.java:438)
    at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:1387)
    ... 20 more