TEIID11008:PSQLException-ERROR: missing FROM-clause entry for table "anon_grp0" running a query with GROUP BY and UNION ALL --------------------------------------------------------------------------------------------------------------------------- Key: TEIID-4436 URL: https://issues.jboss.org/browse/TEIID-4436 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 8.7 Reporter: Salvatore R Assignee: Steven Hawkins Fix For: 9.1, 9.0.4 Running the following query: {code:sql} select * from ( select test_a.a from pg.test_a group by test_a.a union all select 1 as a ) as x where a = 1; {code} where test_a is a table in PostgreSQL, the following exception is thrown: {code:sql} 01:07:04,815 WARN [org.teiid.CONNECTOR] (Worker12_QueryProcessorQueue114) enPDJlWH1O/y Connector worker process failed for atomic-request=enPDJlWH1O/y.34.5.30: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0."a" FROM "public"."test_a" AS g_0 WHERE anon_grp0.gcol0 = 1 GROUP BY g_0."a"] at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:131) at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:365) at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:211) at com.sun.proxy.$Proxy29.execute(Unknown Source) at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:306) at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:112) at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:65) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276) at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: org.postgresql.util.PSQLException: PSQLException-ERROR: missing FROM-clause entry for table "anon_grp0" Position: 52 at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:417) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:302) at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:504) at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:123) ... 17 more 01:07:05,004 WARN [org.teiid.PROCESSOR] (Worker11_QueryProcessorQueue116) enPDJlWH1O/y TEIID30020 Processing exception for request enPDJlWH1O/y.34 'TEIID30504 test_tables_pg: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0."a" FROM "public"."test_a" AS g_0 WHERE anon_grp0.gcol0 = 1 GROUP BY g_0."a"]'. Originally TeiidProcessingException 'PSQLException-ERROR: missing FROM-clause entry for table "anon_grp0" Position: 52' QueryExecutorImpl.java:2157. Enable more detailed logging to see the entire stacktrace. {code} I reproduced this error in Teiid-9.1.0.Alpha2