DuplicateRecordException when adding some tables with dots in columns --------------------------------------------------------------------- Key: TEIID-5046 URL: https://issues.jboss.org/browse/TEIID-5046 Project: Teiid Issue Type: Bug Components: JDBC Connector, Query Engine Affects Versions: 9.3.1 Environment: teiid-9.3.1 on WildFly Full 10.0.0.Final (WildFly Core 2.0.10.Final) Reporter: dalex dalex Assignee: Steven Hawkins Fix For: 10.0 when adding such table: {code:sql} create table t1 ( "a.b" int, "a_b" int ); {code} we will get the following stacktrace: {noformat} 2017-08-31 15:21:34,121 WARN [org.teiid.RUNTIME] (Worker1_async-teiid-threads1) TEIID50036 VDB test.1 model "test_pg" metadata failed to load. Reason:TEIID60016 Duplicate Column te st_pg.t1.a_b: org.teiid.metadata.DuplicateRecordException: TEIID60016 Duplicate Column test_pg.t1.a_b at org.teiid.metadata.MetadataFactory.addColumn(MetadataFactory.java:198) at org.teiid.translator.jdbc.JDBCMetdataProcessor.addColumn(JDBCMetdataProcessor.java:449) at org.teiid.translator.jdbc.JDBCMetdataProcessor.processColumns(JDBCMetdataProcessor.java:410) at org.teiid.translator.jdbc.JDBCMetdataProcessor.getColumns(JDBCMetdataProcessor.java:385) at org.teiid.translator.jdbc.JDBCMetdataProcessor.getTables(JDBCMetdataProcessor.java:336) at org.teiid.translator.jdbc.JDBCMetdataProcessor.getConnectorMetadata(JDBCMetdataProcessor.java:166) at org.teiid.translator.jdbc.JDBCExecutionFactory.getMetadata(JDBCExecutionFactory.java:306) at org.teiid.translator.jdbc.JDBCExecutionFactory.getMetadata(JDBCExecutionFactory.java:69) at org.teiid.query.metadata.NativeMetadataRepository.getMetadata(NativeMetadataRepository.java:96) at org.teiid.query.metadata.NativeMetadataRepository.loadMetadata(NativeMetadataRepository.java:62) at org.teiid.query.metadata.ChainingMetadataRepository.loadMetadata(ChainingMetadataRepository.java:55) at org.teiid.jboss.VDBService$6.run(VDBService.java:341) at org.teiid.jboss.VDBService$7.run(VDBService.java:392) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284) at org.teiid.dqp.internal.process.ThreadReuseExecutor$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) {noformat} I suppose the problem related to auto replacement of dots on underscores which was fixed in TEIID-4913 issue. Maybe it's worth to introduce some kind of indexes in column names if there is already a column with the same name instead of throwing out DuplicateRecordException. Or maybe there is an another solution.