Retrieving clob values from Exasol prints stacktrace to server log ------------------------------------------------------------------ Key: TEIID-5446 URL: https://issues.jboss.org/browse/TEIID-5446 Project: Teiid Issue Type: Bug Components: JDBC Connector Affects Versions: 11.1, 8.12.15.6_4 Reporter: Andrej Šmigala Assignee: Steven Hawkins Fix For: 11.1, 8.12.15.6_4 In Exasol, CLOB is [an alias|https://www.exasol.com/support/secure/attachment/49848/EXASOL_User_...] for VARCHAR. When querying a foreign table with a CLOB column defined as {code:sql} ObjectValue clob OPTIONS (NATIVE_TYPE 'varchar(4000)', NAMEINSOURCE 'objectvalue')) {code}, an exception is logged in the server output for each row. The query itself finishes successfully and the returned results are correct. {noformat} 12:44:20,959 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr java.lang.Throwable 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at com.exasol.jdbc.Column.type_error(Column.java:26) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at com.exasol.jdbc.Column.getClob(Column.java:137) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at com.exasol.jdbc.EXAResultSet.getClob(EXAResultSet.java:686) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.jboss.jca.adapters.jdbc.WrappedResultSet.getClob(WrappedResultSet.java:1060) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.translator.jdbc.JDBCExecutionFactory.retrieveValue(JDBCExecutionFactory.java:1146) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.translator.jdbc.JDBCQueryExecution.next(JDBCQueryExecution.java:340) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.handleBatch(ConnectorWorkItem.java:455) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.more(ConnectorWorkItem.java:241) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at java.lang.reflect.Method.invoke(Method.java:498) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:229) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at com.sun.proxy.$Proxy36.more(Unknown Source) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:305) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at java.util.concurrent.FutureTask.run(FutureTask.java:266) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:61) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:277) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:115) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:206) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 12:44:20,960 ERROR [stderr] (Worker6_QueryProcessorQueue42) axblivLlwkmr at java.lang.Thread.run(Thread.java:748) {noformat}