[teiid-issues] [JBoss JIRA] (TEIID-5004) INNER JOINs of two CTEs fail with ASSERTION FAILED error message
Steven Hawkins (JIRA)
issues at jboss.org
Fri Jul 21 18:20:00 EDT 2017
[ https://issues.jboss.org/browse/TEIID-5004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13438998#comment-13438998 ]
Steven Hawkins commented on TEIID-5004:
---------------------------------------
In the plan there are access nodes that end up with the same query. The sharing logic is allowing the cached buffer to be fully closed before all usage is complete.
> INNER JOINs of two CTEs fail with ASSERTION FAILED error message
> ----------------------------------------------------------------
>
> Key: TEIID-5004
> URL: https://issues.jboss.org/browse/TEIID-5004
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 9.3, 9.3.1
> Environment: teiid-9.3.0.Final on WildFly Full 10.0.0.Final (WildFly Core 2.0.10.Final)
> and
> teiid-9.3.1 on WildFly Full 10.0.0.Final (WildFly Core 2.0.10.Final)
> Reporter: dalex dalex
> Assignee: Steven Hawkins
> Priority: Blocker
>
> when running the following query several times in a row:
> {code:sql}
> with
> CTE1 as (
> select a1 from (
> -->>
> with CTE11 as (select a1 from (
> WITH
> alias as (SELECT 1 as a),
> alias1 as (select alias.a as alias, AAA.a as alias1, AAA.b as a from alias join test.test_a AAA on alias.a!=AAA.a or alias.a!=AAA.a),
> alias2 as (with alias as (select alias.a as alias, AAA.a as alias1, AAA.b as a from alias join test.test_a AAA on alias.a!=AAA.a or alias.a!=AAA.a) select * from alias),
> alias3 as (with alias as (select alias.a as alias, AAA.a as alias1, AAA.a from alias join alias2 AAA on alias.a!=AAA.a or alias.a!=AAA.a) select * from alias)
> SELECT AAA.alias1 as a1 FROM alias join alias1 as AAA on alias.a=AAA.a or alias.a!=AAA.a join alias2 on AAA.a=alias2.a or AAA.a!=alias.a left join alias3 on alias3.a=alias2.a or alias3.a!=alias2.a
> ) tv2)
> --<<
> select a1 from CTE11
> ) as SUBQ1),
> CTE2 as (
> select a1 from (
> -->>
> with CTE21 as (select a1 from (
> WITH
> alias as (SELECT 1 as a),
> alias1 as (select alias.a as alias, AAA.a as alias1, AAA.b as a from alias join test.test_a AAA on alias.a!=AAA.a or alias.a!=AAA.a),
> alias2 as (with alias as (select alias.a as alias, AAA.a as alias1, AAA.b as a from alias join test.test_a AAA on alias.a!=AAA.a or alias.a!=AAA.a) select * from alias),
> alias3 as (with alias as (select alias.a as alias, AAA.a as alias1, AAA.a from alias join alias2 AAA on alias.a!=AAA.a or alias.a!=AAA.a) select * from alias)
> SELECT AAA.alias1 as a1 FROM alias join alias1 as AAA on alias.a=AAA.a or alias.a!=AAA.a join alias2 on AAA.a=alias2.a or AAA.a!=alias.a left join alias3 on alias3.a=alias2.a or alias3.a!=alias2.a
> ) tv2)
> --<<
> select a1 from CTE21
> ) as SUBQ2)
> select * from CTE1 as T1 join CTE2 as T2 on T1.a1=T2.a1
> {code}
> teiid returns the following stacktrace (from teiid 9.3.1):
> {code}
> 2017-07-21 16:52:32,440 ERROR [org.teiid.PROCESSOR] (Worker1_QueryProcessorQueue73) oiBQAQPtTMe+ TEIID30019 Unexpected exception for request oiBQAQPtTMe+.15: java.lang.AssertionError
> : ASSERTION FAILED: expected reference to be not null
> at org.teiid.core.util.Assertion.failed(Assertion.java:73)
> at org.teiid.core.util.Assertion.isNotNull(Assertion.java:100)
> at org.teiid.core.util.Assertion.isNotNull(Assertion.java:92)
> at org.teiid.common.buffer.TupleBuffer.getBatch(TupleBuffer.java:287)
> at org.teiid.dqp.internal.process.TupleSourceCache$CopyOnReadTupleSource.nextTuple(TupleSourceCache.java:103)
> at org.teiid.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:394)
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
> at org.teiid.query.processor.BatchIterator.finalRow(BatchIterator.java:69)
> at org.teiid.common.buffer.AbstractTupleSource.getCurrentTuple(AbstractTupleSource.java:70)
> at org.teiid.query.processor.BatchIterator.getCurrentTuple(BatchIterator.java:84)
> at org.teiid.common.buffer.AbstractTupleSource.hasNext(AbstractTupleSource.java:92)
> at org.teiid.query.processor.relational.MergeJoinStrategy.process(MergeJoinStrategy.java:165)
> at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:235)
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164)
> at org.teiid.query.processor.relational.SourceState.prefetch(SourceState.java:211)
> at org.teiid.query.processor.relational.SourceState.rowCountLE(SourceState.java:158)
> at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:227)
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164)
> at org.teiid.query.processor.relational.SourceState.prefetch(SourceState.java:211)
> at org.teiid.query.processor.relational.JoinNode.prefetch(JoinNode.java:255)
> at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:247)
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
> at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:102)
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
> at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:150)
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
> at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145)
> at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151)
> at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114)
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164)
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146)
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:477)
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:349)
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51)
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:275)
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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