Philip Deegan created DRILL-3818:
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Summary: NPE when DISTINCT and GROUP BY is used in avro or json
Key: DRILL-3818
URL: https://issues.apache.org/jira/browse/DRILL-3818
Project: Apache Drill
Issue Type: Bug
Components: Client - JDBC, Execution - RPC
Affects Versions: 1.1.0, 1.2.0
Environment: Linux Mint 17.1
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
Reporter: Philip Deegan
Assignee: Daniel Barclay (Drill)
Fix For: 1.2.0
Data
{ "a": { "b": { "c": "d" }, "e": 2 }}
Query
select DISTINCT(t.a.b.c), MAX(t.a.e) FROM dfs.`json.json` t GROUP BY t.a.b.c
LIMIT 1;
Occurs on 1.1.0 and incubator-drill master
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| commit_id |
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| 9f54aac33df3e783c0192ab56c7e1313dbc823fa |
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[Error Id: bb826851-d8cb-46f5-96c0-1ed01d3d8c45 on philix:31010]
at
org.apache.drill.jdbc.impl.DrillCursor.nextRowInternally(DrillCursor.java:247)
at
org.apache.drill.jdbc.impl.DrillCursor.loadInitialSchema(DrillCursor.java:290)
at
org.apache.drill.jdbc.impl.DrillResultSetImpl.execute(DrillResultSetImpl.java:1359)
at
org.apache.drill.jdbc.impl.DrillResultSetImpl.execute(DrillResultSetImpl.java:74)
at
net.hydromatic.avatica.AvaticaConnection.executeQueryInternal(AvaticaConnection.java:404)
at
net.hydromatic.avatica.AvaticaStatement.executeQueryInternal(AvaticaStatement.java:351)
at
net.hydromatic.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:338)
at
net.hydromatic.avatica.AvaticaStatement.execute(AvaticaStatement.java:69)
at
org.apache.drill.jdbc.impl.DrillStatementImpl.execute(DrillStatementImpl.java:86)
at sqlline.Commands.execute(Commands.java:841)
at sqlline.Commands.sql(Commands.java:751)
at sqlline.SqlLine.dispatch(SqlLine.java:737)
at sqlline.SqlLine.begin(SqlLine.java:612)
at sqlline.SqlLine.start(SqlLine.java:366)
at sqlline.SqlLine.main(SqlLine.java:259)
Caused by: org.apache.drill.common.exceptions.UserRemoteException: VALIDATION
ERROR: java.lang.NullPointerException
[Error Id: bb826851-d8cb-46f5-96c0-1ed01d3d8c45 on philix:31010]
at
org.apache.drill.exec.rpc.user.QueryResultHandler.resultArrived(QueryResultHandler.java:118)
at
org.apache.drill.exec.rpc.user.UserClient.handleReponse(UserClient.java:110)
at
org.apache.drill.exec.rpc.BasicClientWithConnection.handle(BasicClientWithConnection.java:47)
at
org.apache.drill.exec.rpc.BasicClientWithConnection.handle(BasicClientWithConnection.java:32)
at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:61)
at
org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:233)
at
org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:205)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:254)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
at
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:618)
at
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:329)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:250)
at
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:745)
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