[teiid-issues] [JBoss JIRA] (TEIID-4832) NullPointException in GroupingNode.initialize
Steven Hawkins (JIRA)
issues at jboss.org
Tue Mar 28 16:02:00 EDT 2017
[ https://issues.jboss.org/browse/TEIID-4832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steven Hawkins resolved TEIID-4832.
-----------------------------------
Resolution: Done
The issue was with the expression replacement logic for searched case - it did not account for the replacement expression matching a when clause.
> NullPointException in GroupingNode.initialize
> ---------------------------------------------
>
> Key: TEIID-4832
> URL: https://issues.jboss.org/browse/TEIID-4832
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 9.1.4
> Reporter: Bram Gadeyne
> Assignee: Steven Hawkins
> Fix For: 9.3, 9.2.2
>
>
> When executing this query:
> select year(nv.variabletime) as y, case when dv.varvalue is null then 'missing' else 'wrong' end as t, count(*) as aantal_missing_or_different
> from wodan_derived_variables nv
> left join tv_retrieve_dervals dv on
> dv.admissionid = nv.admissionid and
> dv.Datetime = nv.variabletime and
> dv.VariableID = 30003400
> where nv.variableid = 'PF'
> and (dv.varvalue is null or round(nv.numericvalue,0) <> round(dv.varvalue,0))
> group by year(nv.variabletime), dv.varvalue is null
> order by y, t
> I get an exception:
> 2017-03-28 11:34:19,461 ERROR [org.teiid.PROCESSOR] (Worker440_QueryProcessorQueue34086834) vF6xRF3a6hIs TEIID30019 Unexpected exception for request vF6xRF3a6hIs.52: java.lang.NullPointerException
> at org.teiid.query.processor.relational.GroupingNode.initialize(GroupingNode.java:219)
> at org.teiid.query.processor.relational.RelationalPlan.connectExternal(RelationalPlan.java:96)
> at org.teiid.query.processor.relational.RelationalPlan.connectExternal(RelationalPlan.java:102)
> at org.teiid.query.processor.relational.RelationalPlan.connectExternal(RelationalPlan.java:102)
> at org.teiid.query.processor.relational.RelationalPlan.connectExternal(RelationalPlan.java:102)
> at org.teiid.query.processor.relational.RelationalPlan.initialize(RelationalPlan.java:91)
> at org.teiid.query.processor.QueryProcessor.init(QueryProcessor.java:226)
> at org.teiid.query.processor.QueryProcessor.getBuffer(QueryProcessor.java:289)
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:154)
> 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:282)
> 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)
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