Description
This bug is reported from Tajo Korea user group (https://groups.google.com/forum/#!topic/tajo-user-kr/oHWg-IQqVYg).
Here is the detailed log.
default> select rank() over (order by n_name) from nation, region where r_regionkey = n_regionkey; ... 2015-01-27 11:08:23,655 INFO org.apache.tajo.master.GlobalEngine: Query: select rank() over (order by n_name) from nation, region where r_regionkey = n_regionkey 2015-01-27 11:08:23,739 ERROR org.apache.tajo.master.GlobalEngine: Stack Trace: java.lang.NullPointerException at org.apache.tajo.plan.util.PlannerUtil.targetToSchema(PlannerUtil.java:674) at org.apache.tajo.plan.logical.WindowAggNode.setTargets(WindowAggNode.java:102) at org.apache.tajo.plan.LogicalPlanner.insertWindowAggNode(LogicalPlanner.java:691) at org.apache.tajo.plan.LogicalPlanner.visitProjection(LogicalPlanner.java:247) at org.apache.tajo.plan.LogicalPlanner.visitProjection(LogicalPlanner.java:67) at org.apache.tajo.plan.algebra.BaseAlgebraVisitor.visit(BaseAlgebraVisitor.java:59) at org.apache.tajo.plan.LogicalPlanner.createPlan(LogicalPlanner.java:144) at org.apache.tajo.plan.LogicalPlanner.createPlan(LogicalPlanner.java:132) at org.apache.tajo.master.GlobalEngine.createLogicalPlan(GlobalEngine.java:233) at org.apache.tajo.master.GlobalEngine.executeQuery(GlobalEngine.java:162) at org.apache.tajo.master.TajoMasterClientService$TajoMasterClientProtocolServiceHandler.submitQuery(TajoMasterClientService.java:282) at org.apache.tajo.ipc.TajoMasterClientProtocol$TajoMasterClientProtocolService$2.callBlockingMethod(TajoMasterClientProtocol.java:543) at org.apache.tajo.rpc.BlockingRpcServer$ServerHandler.messageReceived(BlockingRpcServer.java:103) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462) at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443) at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:109) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:90) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) ...