[jira] [Created] (DRILL-6020) NullPointerException with Union setting on when querying JSON

[Mitchel Labonte (JIRA)]

Mitchel Labonte created DRILL-6020:
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             Summary: NullPointerException with Union setting on when querying 
JSON
                 Key: DRILL-6020
                 URL: https://issues.apache.org/jira/browse/DRILL-6020
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Mitchel Labonte


h1. Steps to reproduce
alter session set `exec.enable_union_type`=true;
select tb.level1.dta from dfs.`file.json` tb;

*Content of file.json:*
{noformat}
{"level1":{"dta":{"test":"test"}}}
{"level1":{"dta":"test"}}
{noformat}

h1. Stack trace
Error: SYSTEM ERROR: NullPointerException

Fragment 0:0

[Error Id: fe267584-32f3-413c-a77c-fc5b5c1ba513 on localhost:31010]

  (java.lang.NullPointerException) null
    
org.apache.drill.exec.vector.complex.FieldIdUtil.getFieldIdIfMatchesUnion():34
    org.apache.drill.exec.vector.complex.FieldIdUtil.getFieldIdIfMatches():135
    org.apache.drill.exec.vector.complex.FieldIdUtil.getFieldIdIfMatches():130
    org.apache.drill.exec.vector.complex.FieldIdUtil.getFieldId():201
    org.apache.drill.exec.record.SimpleVectorWrapper.getFieldIdIfMatches():102
    org.apache.drill.exec.record.VectorContainer.getValueVectorId():298
    org.apache.drill.exec.physical.impl.ScanBatch.getValueVectorId():313
    
org.apache.drill.exec.expr.ExpressionTreeMaterializer$MaterializeVisitor.visitSchemaPath():289
    
org.apache.drill.exec.expr.ExpressionTreeMaterializer$MaterializeVisitor.visitSchemaPath():272
    org.apache.drill.common.expression.SchemaPath.accept():150
    
org.apache.drill.exec.expr.ExpressionTreeMaterializer$AbstractMaterializeVisitor.visitFunctionCall():399
    
org.apache.drill.exec.expr.ExpressionTreeMaterializer$AbstractMaterializeVisitor.visitFunctionCall():331
    org.apache.drill.common.expression.FunctionCall.accept():60
    org.apache.drill.exec.expr.ExpressionTreeMaterializer.materialize():169
    org.apache.drill.exec.expr.ExpressionTreeMaterializer.materialize():147
    
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.setupNewSchema():421
    org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext():78
    
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext():133
    org.apache.drill.exec.record.AbstractRecordBatch.next():162
    org.apache.drill.exec.physical.impl.BaseRootExec.next():105
    org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext():81
    org.apache.drill.exec.physical.impl.BaseRootExec.next():95
    org.apache.drill.exec.work.fragment.FragmentExecutor$1.run():234
    org.apache.drill.exec.work.fragment.FragmentExecutor$1.run():227
    java.security.AccessController.doPrivileged():-2
    javax.security.auth.Subject.doAs():422
    org.apache.hadoop.security.UserGroupInformation.doAs():1657
    org.apache.drill.exec.work.fragment.FragmentExecutor.run():227
    org.apache.drill.common.SelfCleaningRunnable.run():38
    java.util.concurrent.ThreadPoolExecutor.runWorker():1142
    java.util.concurrent.ThreadPoolExecutor$Worker.run():617
    java.lang.Thread.run():745 (state=,code=0)




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