任宇华 created IOTDB-4882:
--------------------------
Summary: NPE appears when using uppercase count
Key: IOTDB-4882
URL: https://issues.apache.org/jira/browse/IOTDB-4882
Project: Apache IoTDB
Issue Type: Bug
Reporter: 任宇华
Attachments: image-2022-11-09-10-10-59-832.png
!image-2022-11-09-10-10-59-832.png!
41560 [pool-28-IoTDB-ClientRPC-Processor-1] ERROR
o.a.i.db.utils.ErrorHandlingUtils - Status code: INTERNAL_SERVER_ERROR(500),
operation: "select COUNT(hardware) from root.** group by level = 3".
executeStatement failed
java.lang.NullPointerException: null
at java.util.AbstractCollection.addAll(AbstractCollection.java:343)
at
org.apache.iotdb.db.mpp.plan.analyze.AnalyzeVisitor.updateGroupByLevelExpressions(AnalyzeVisitor.java:684)
at
org.apache.iotdb.db.mpp.plan.analyze.AnalyzeVisitor.analyzeGroupByLevel(AnalyzeVisitor.java:646)
at
org.apache.iotdb.db.mpp.plan.analyze.AnalyzeVisitor.visitQuery(AnalyzeVisitor.java:253)
at
org.apache.iotdb.db.mpp.plan.analyze.AnalyzeVisitor.visitQuery(AnalyzeVisitor.java:155)
at
org.apache.iotdb.db.mpp.plan.statement.crud.QueryStatement.accept(QueryStatement.java:504)
at
org.apache.iotdb.db.mpp.plan.statement.StatementVisitor.process(StatementVisitor.java:107)
at org.apache.iotdb.db.mpp.plan.analyze.Analyzer.analyze(Analyzer.java:43)
at
org.apache.iotdb.db.mpp.plan.execution.QueryExecution.analyze(QueryExecution.java:257)
at
org.apache.iotdb.db.mpp.plan.execution.QueryExecution.<init>(QueryExecution.java:142)
at
org.apache.iotdb.db.mpp.plan.Coordinator.createQueryExecution(Coordinator.java:104)
at org.apache.iotdb.db.mpp.plan.Coordinator.execute(Coordinator.java:137)
at
org.apache.iotdb.db.service.thrift.impl.ClientRPCServiceImpl.executeStatementInternal(ClientRPCServiceImpl.java:215)
at
org.apache.iotdb.db.service.thrift.impl.ClientRPCServiceImpl.executeStatement(ClientRPCServiceImpl.java:825)
at
org.apache.iotdb.service.rpc.thrift.IClientRPCService$Processor$executeStatement.getResult(IClientRPCService.java:3603)
at
org.apache.iotdb.service.rpc.thrift.IClientRPCService$Processor$executeStatement.getResult(IClientRPCService.java:3583)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38)
at
org.apache.iotdb.db.service.thrift.ProcessorWithMetrics.process(ProcessorWithMetrics.java:64)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:248)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
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