[teiid-issues] [JBoss JIRA] (TEIID-3381) PSQLException: ERROR: failed to find conversion function from unknown to text
Steven Hawkins (JIRA)
issues at jboss.org
Fri Mar 13 15:18:18 EDT 2015
[ https://issues.jboss.org/browse/TEIID-3381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13050081#comment-13050081 ]
Steven Hawkins commented on TEIID-3381:
---------------------------------------
This seems like somewhat peculiar behavior from postgresql. It defaults to the unknown type rather than a string type for string literals. So we'll need to add a cast or some other typing information.
> PSQLException: ERROR: failed to find conversion function from unknown to text
> -----------------------------------------------------------------------------
>
> Key: TEIID-3381
> URL: https://issues.jboss.org/browse/TEIID-3381
> Project: Teiid
> Issue Type: Bug
> Reporter: Salvatore R
> Assignee: Steven Hawkins
>
> Running this query (where "test_a" is a table in PostgreSQL):
> {code:sql}
> select test2
> from
> (select 'aaa' as test2 from pg.test_a) b
> group by test2
> {code}
> the following exception is thrown:
> {code:sql}
> 19:01:01,172 WARN [org.teiid.CONNECTOR] (Worker5_QueryProcessorQueue26) +AyVUdbE4D5l Connector worker process failed for atomic-request=+AyVUdbE4D5l.12.1.3: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT v_0.c_0 FROM (SELECT 'aaa' AS c_0 FROM "public"."test_a" AS g_0) AS v_0 GROUP BY v_0.c_0]
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:131) [translator-jdbc-8.10.0.Beta2.jar:8.10.0.Beta2]
> at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:335)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_51]
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_51]
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_51]
> at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_51]
> at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:209)
> at com.sun.proxy.$Proxy47.execute(Unknown Source)
> at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:298)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:110)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:107)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262) [rt.jar:1.7.0_51]
> at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:58)
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_51]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_51]
> at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_51]
> Caused by: org.postgresql.util.PSQLException: ERROR: failed to find conversion function from unknown to text
> 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:462)
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:123) [translator-jdbc-8.10.0.Beta2.jar:8.10.0.Beta2]
> ... 18 more
> {code}
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