[teiid-issues] [JBoss JIRA] (TEIID-2039) Virtual table mapping with large number of UNIONs is resulting in excessively long source query
Marc Shirley (JIRA)
jira-events at lists.jboss.org
Fri May 11 12:47:18 EDT 2012
[ https://issues.jboss.org/browse/TEIID-2039?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marc Shirley updated TEIID-2039:
--------------------------------
Description:
Queries against a virtual table built upon several layers of UNION transformations is resulting in what appears to be a badly formed, excessively long source query (for example, a SQL string over 1 million characters) that results in slow query execution.
Against the 7.7 version, the query may result in the below exception:
08:45:11,878 ERROR [PROCESSOR] Unexpected exception for request 84Sg8E1i+tBi.5
java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.elementData(ArrayList.java:338)
at java.util.ArrayList.get(ArrayList.java:351)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:338)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:323)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:328)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:323)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.execute(RuleCollapseSource.java:99)
at org.teiid.query.optimizer.relational.RelationalPlanner.executeRules(RelationalPlanner.java:455)
at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:199)
at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:190)
at org.teiid.dqp.internal.process.Request.generatePlan(Request.java:436)
at org.teiid.dqp.internal.process.Request.processRequest(Request.java:459)
at org.teiid.dqp.internal.process.RequestWorkItem.processNew(RequestWorkItem.java:516)
at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:276)
at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:49)
at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:215)
at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:232)
at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:118)
at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:288)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
was:Queries against a virtual table built upon several layers of UNION transformations is resulting in what appears to be a badly formed, excessively long source query (for example, a SQL string over 1 million characters) that results in slow query execution.
> Virtual table mapping with large number of UNIONs is resulting in excessively long source query
> -----------------------------------------------------------------------------------------------
>
> Key: TEIID-2039
> URL: https://issues.jboss.org/browse/TEIID-2039
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 7.4.1, 7.7
> Reporter: Marc Shirley
> Assignee: Steven Hawkins
>
> Queries against a virtual table built upon several layers of UNION transformations is resulting in what appears to be a badly formed, excessively long source query (for example, a SQL string over 1 million characters) that results in slow query execution.
> Against the 7.7 version, the query may result in the below exception:
> 08:45:11,878 ERROR [PROCESSOR] Unexpected exception for request 84Sg8E1i+tBi.5
> java.lang.ArrayIndexOutOfBoundsException: -1
> at java.util.ArrayList.elementData(ArrayList.java:338)
> at java.util.ArrayList.get(ArrayList.java:351)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:338)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:323)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:328)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:359)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:323)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.buildQuery(RuleCollapseSource.java:373)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:228)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.createQuery(RuleCollapseSource.java:209)
> at org.teiid.query.optimizer.relational.rules.RuleCollapseSource.execute(RuleCollapseSource.java:99)
> at org.teiid.query.optimizer.relational.RelationalPlanner.executeRules(RelationalPlanner.java:455)
> at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:199)
> at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:190)
> at org.teiid.dqp.internal.process.Request.generatePlan(Request.java:436)
> at org.teiid.dqp.internal.process.Request.processRequest(Request.java:459)
> at org.teiid.dqp.internal.process.RequestWorkItem.processNew(RequestWorkItem.java:516)
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:276)
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:49)
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:215)
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:232)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:118)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:288)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:679)
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