An exception is thrown by PostgreSQL when nested CTEs are pushed down --------------------------------------------------------------------- Key: TEIID-4287 URL: https://issues.jboss.org/browse/TEIID-4287 Project: Teiid Issue Type: Bug Components: Query Engine Reporter: Salvatore R Assignee: Steven Hawkins Fix For: 9.1, 8.12.5, 8.13.6, 9.0.1 I defined the following views in my VDB, based on a table in PostgreSQL: {code:sql} create view tv0 as WITH cte1 as (SELECT 1 as a), alias2 as (select a from cte1), cte3 as (select a from alias2) SELECT cte3.a FROM alias2 join cte3 on cte3.a=alias2.a; create view tv1 as WITH cte1 as (SELECT a from pg.test_a), alias2 as (select a from cte1), cte3 as (select a from alias2) SELECT cte3.a FROM alias2 join cte3 on cte3.a=alias2.a; create view tv2 as WITH alias2 as (select b, a from pg.test_a), cte4 as (select a from alias2) SELECT cte4.a FROM cte4 join alias2 on cte4.a=alias2.a ; {code} The following query, based on views tv0 and tv1: {code:sql} with CTE1 as ( select a from ( with CTE11 as (select a from views.tv0) select a from CTE11 ) as SUBQ1), CTE2 as ( select a from ( with CTE21 as (select a from views.tv1) select a from CTE21 ) as SUBQ2) select * from CTE1 as T1 join CTE2 as T2 on T1.a=T2.a {code} throws this exception: {code:sql} 18:55:23,260 WARN [org.teiid.PROCESSOR] (Worker24_QueryProcessorQueue773) qPWXuJPW78go TEIID30020 Processing exception for request qPWXuJPW78go.3 'TEIID30504 test_tables_pg: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: WITH alias2__1 (a) AS (SELECT g_0."a" FROM "public"."test_a" AS g_0) SELECT g_1.a AS c_0 FROM alias2__1 AS g_0, alias2 AS g_1 WHERE g_1.a = g_0.a AND g_1.a = 1 ORDER BY c_0]'. Originally TeiidProcessingException 'ERROR: Relation "alias2" does not exist Position: 113' QueryExecutorImpl.java:2157. Enable more detailed logging to see the entire stacktrace. 19:00:13,379 WARN [org.teiid.CONNECTOR] (Worker28_QueryProcessorQueue775) qPWXuJPW78go Connector worker process failed for atomic-request=qPWXuJPW78go.4.7.144: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: WITH alias2__1 (a) AS (SELECT g_0."a" FROM "public"."test_a" AS g_0) SELECT g_1.a AS c_0 FROM alias2__1 AS g_0, alias2 AS g_1 WHERE g_1.a = g_0.a AND g_1.a = 1 ORDER BY c_0] at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:131) at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:365) at sun.reflect.GeneratedMethodAccessor86.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$1.invoke(ConnectorManager.java:211) at com.sun.proxy.$Proxy56.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: ERROR: Relation "alias2" does not exist Position: 113 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 {code} A similar query based on view tv2, throws a different exception: {code:sql} with CTE1 as ( select a from ( with CTE11 as (select a from views.tv2) select a from CTE11 ) as SUBQ1), CTE2 as ( select a from ( with CTE21 as (select a from views.tv2) select a from CTE21 ) as SUBQ2) select * from CTE1 as T1 join CTE2 as T2 on T1.a=T2.a {code} {code:sql} 19:05:02,784 WARN [org.teiid.CONNECTOR] (Worker30_QueryProcessorQueue778) qPWXuJPW78go Connector worker process failed for atomic-request=qPWXuJPW78go.5.2.145: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: WITH alias2 (b, a) AS (SELECT NULL, g_0."a" FROM "public"."test_a" AS g_0), alias2__1 (a, b) AS (SELECT NULL, g_0."a" FROM "public"."test_a" AS g_0) SELECT g_2.a, g_0.a FROM alias2 AS g_0, alias2 AS g_1, alias2 AS g_2, alias2__1 AS g_3 WHERE g_2.a = g_3.a AND g_0.a = g_1.a AND g_0.a = g_2.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.GeneratedMethodAccessor86.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$1.invoke(ConnectorManager.java:211) at com.sun.proxy.$Proxy56.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: ERROR: failed to find conversion function from unknown to integer 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 {code}