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https://issues.apache.org/jira/browse/NIFI-2200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16333923#comment-16333923
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Koji Kawamura commented on NIFI-2200:
-------------------------------------
NIFI-1706 looks it has the similar motivation.
> QueryDatabaseTable subquery
> ---------------------------
>
> Key: NIFI-2200
> URL: https://issues.apache.org/jira/browse/NIFI-2200
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Nabegh
> Priority: Major
>
> QueryDatabaseTable throws an exception if given a subquery as the table name
> with a where condition.
> For example, Table Name =
> (select * from table_name where condition = value) t
> will throw the following error
> 2016-07-07 16:23:22,668 ERROR [Timer-Driven Process Thread-7]
> o.a.n.p.standard.QueryDatabaseTable
> QueryDatabaseTable[id=354261e7-cfa5-4809-a60c-a9c5136faa70] Failed to process
> session due to org.apache.nifi.processor.exception.FlowFileHandlingException:
> StandardFlowFileRecord[uuid=5b7fca67-9fd6-4dd3-9cc4-f2a0bfcf7095,claim=,offset=0,name=196391993568910,size=0]
> transfer relationship not specified:
> org.apache.nifi.processor.exception.FlowFileHandlingException:
> StandardFlowFileRecord[uuid=5b7fca67-9fd6-4dd3-9cc4-f2a0bfcf7095,claim=,offset=0,name=196391993568910,size=0]
> transfer relationship not specified
> 2016-07-07 16:23:22,671 ERROR [Timer-Driven Process Thread-7]
> o.a.n.p.standard.QueryDatabaseTable
> org.apache.nifi.processor.exception.FlowFileHandlingException:
> StandardFlowFileRecord[uuid=5b7fca67-9fd6-4dd3-9cc4-f2a0bfcf7095,claim=,offset=0,name=196391993568910,size=0]
> transfer relationship not specified
> at
> org.apache.nifi.controller.repository.StandardProcessSession.checkpoint(StandardProcessSession.java:212)
> ~[nifi-framework-core-0.6.1.jar:0.6.1]
> at
> org.apache.nifi.controller.repository.StandardProcessSession.commit(StandardProcessSession.java:282)
> ~[nifi-framework-core-0.6.1.jar:0.6.1]
> at
> org.apache.nifi.processors.standard.QueryDatabaseTable.onTrigger(QueryDatabaseTable.java:348)
> ~[na:na]
> at
> org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1059)
> ~[nifi-framework-core-0.6.1.jar:0.6.1]
> at
> org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:136)
> [nifi-framework-core-0.6.1.jar:0.6.1]
> at
> org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
> [nifi-framework-core-0.6.1.jar:0.6.1]
> at
> org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:123)
> [nifi-framework-core-0.6.1.jar:0.6.1]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_91]
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> [na:1.8.0_91]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> [na:1.8.0_91]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> [na:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_91]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
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