[teiid-issues] [JBoss JIRA] (TEIID-4287) An exception is thrown by PostgreSQL when nested CTEs are pushed down
Steven Hawkins (JIRA)
issues at jboss.org
Tue Jun 21 20:04:01 EDT 2016
[ https://issues.jboss.org/browse/TEIID-4287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steven Hawkins updated TEIID-4287:
----------------------------------
Fix Version/s: 9.1
9.0.1
The first scenario is due to an incomplete recontexting of one of the alias2 common tables.
I'll look into the other query tomorrow and also determine if this needs to go into older branches.
> 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, 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}
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