CTE: Inconsistent Error Message when SELECTing a View Instead of its Definition

1. Create several empty tables based on the code below in postgreSQL (in my case I created them in "test_dwh" database): CREATE TABLE public .tab1 ( name character varying (4000) ); CREATE TABLE public .tab2 ( course_id integer ); CREATE TABLE public .tab3 ( course_id bigint ); 2. Add postgresql (in my example I use "test_dwh" database) database configurations in standalone-teiid.xml: <datasource jndi-name= "java:/test_dwh_pg" pool-name= "test_dwh_pg" enabled= "true" use-java-context= "true" > <connection-url> jdbc:postgresql://localhost:5432/test_dwh?charSet=utf8 </connection-url> <driver-class> org.postgresql.Driver </driver-class> <driver> org.postgresql </driver> <pool> <min-pool-size> 2 </min-pool-size> <max-pool-size> 70 </max-pool-size> <prefill> false </prefill> <use-strict-min> false </use-strict-min> <flush-strategy> FailingConnectionOnly </flush-strategy> </pool> <security> <user-name> postgres </user-name> <password> xxxxxx </password> </security> <validation> <check-valid-connection-sql> select 0 </check-valid-connection-sql> </validation> <timeout> <blocking-timeout-millis> 120000 </blocking-timeout-millis> <idle-timeout-minutes> 5 </idle-timeout-minutes> </timeout> </datasource> 3. Add in test-vdb.xml java:/test_dwh_pg configured in previous step as data source: <model name= "dwh" > <property name= "importer.useFullSchemaName" value= "false" /> <property name= "importer.tableTypes" value= "TABLE,VIEW" /> <property name= "importer.importKeys" value= "false" /> <source name= "test_dwh_pg" translator-name= "myPg" connection-jndi-name= "java:/test_dwh_pg" /> </model> <translator name= "myPg" type= "postgresql" > <property name= "SupportsNativeQueries" value= "true" /> </translator> 4. Add in test-vdb.xml the virtual "instructor_statement_2_3" view: <model visible = "true" type = "VIRTUAL" name = "views" > <metadata type = "DDL" > <![CDATA[ create view instructor_statement_2_3 as with base_data as ( select instructor_payment.course_id from dwh.tab3 as instructor_payment ) ,adjustments as ( select course_id from dwh.tab2 ) ,union_data as ( select course_id from base_data union select course_id from base_data union select course_id from adjustments ) ,line_items as ( select dim_playlist.name as playlist_name from union_data left join dwh.tab1 as dim_playlist on true ) ,sub_totals as ( select playlist_name from line_items ) select line_items.playlist_name from line_items union select sub_totals.playlist_name from sub_totals ]]> </metadata> </model> 5. Run the following query: select * from views.instructor_statement_2_3 ;; which will fail with the following stack trace (but if I run the query second time it will work): Unable to find source-code formatter for language: noformat. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml 2018-11-08 17:45:35,858 WARN [org.teiid.CONNECTOR] (Worker1_QueryProcessorQueue6) HBMErVHDTEsV Connector worker process failed for atomic-request=HBMErVHDTEsV.0.2.0: org.teiid.trans lator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: WITH base_data (course_id) AS (SELECT NULL FROM " public " . "tab3" AS g_0), line_items (playlist_name) AS (SELECT g_3. "name" FROM (SELECT g_2.course_id AS c_0 FROM base_data AS g_2 UNION SELECT g_1.course_id AS c_0 FROM base_data AS g_1 UNION SELECT ca st(g_0. "course_id" AS bigint) AS c_0 FROM " public " . "tab2" AS g_0) AS v_0 LEFT OUTER JOIN " public " . "tab1" AS g_3 ON 1 = 1) SELECT g_1.playlist_name AS c_0 FROM line_items AS g_1 UNION SELECT g_0.playlist_name AS c_0 FROM line_items AS g_0 LIMIT 100] at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:127) at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:382) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:229) at com.sun.proxy.$Proxy36.execute(Unknown Source) at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:302) at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108) at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:61) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:277) at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:115) at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:206) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang. Thread .run( Thread .java:745) Caused by: org.postgresql.util.PSQLException-FEHLER: UNION-Typen text und bigint passen nicht zusammen Position: 248 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:119) ... 18 more If I run select against definition of the view it will work: with base_data as ( select instructor_payment.course_id from dwh.tab3 as instructor_payment) ,adjustments as ( select course_id from dwh.tab2 ) ,union_data as ( select course_id from base_data union select course_id from base_data union select course_id from adjustments ) ,line_items as ( select dim_playlist. name as playlist_name from union_data left join dwh.tab1 as dim_playlist on true ) ,sub_totals as ( select playlist_name from line_items ) select line_items.playlist_name from line_items union select sub_totals.playlist_name from sub_totals ;;