Steven Phillips created DRILL-200:
-------------------------------------
Summary: deadbuff when doing count(1) on table with multiple
batches
Key: DRILL-200
URL: https://issues.apache.org/jira/browse/DRILL-200
Project: Apache Drill
Issue Type: Bug
Reporter: Steven Phillips
Here is the query:
select count(1) from "/tmp/tpc-h/supplier";
It gives this error:
java.lang.UnsupportedOperationException: Attemped to access a DeadBuf. This
would happen if you attempted to interact with a buffer that has been moved or
not yet initialized.
org.apache.drill.exec.record.DeadBuf.getLong(DeadBuf.java:250)
~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
org.apache.drill.exec.vector.BigIntVector$Accessor.get(BigIntVector.java:187)
~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
org.apache.drill.exec.test.generated.Gen3.addRecord(AggTemplate.java:24)
~[na:na]
org.apache.drill.exec.test.generated.Gen3.addRecordInc(AggTemplate.java:268)
~[na:na]
org.apache.drill.exec.test.generated.Gen3.doWork(AggTemplate.java:176)
~[na:na]
org.apache.drill.exec.physical.impl.aggregate.AggBatch.next(AggBatch.java:89)
~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
org.apache.drill.exec.record.AbstractSingleRecordBatch.next(AbstractSingleRecordBatch.java:25)
~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.next(ScreenCreator.java:77)
~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
org.apache.drill.exec.work.FragmentRunner.run(FragmentRunner.java:79)
~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_21]
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_21]
java.lang.Thread.run(Thread.java:722) [na:1.7.0_21]
Here is the physical plan that is generated:
{
head : {
type : "APACHE_DRILL_PHYSICAL",
version : 1,
generator : {
type : "optiq",
info : "na"
}
},
graph : [ {
pop : "parquet-scan",
@id : 1,
entries : [ {
path : "/tmp/tpc-h/supplier"
} ],
storageengine : {
type : "parquet",
dfsName : "file:///"
},
ref : "_MAP",
fragmentPointer : 0
}, {
pop : "project",
@id : 2,
exprs : [ {
ref : "output.$f0",
expr : "1"
} ],
child : 1
}, {
pop : "sort",
@id : 3,
child : 2,
orderings : [ ],
reverse : false
}, {
pop : "streaming-aggregate",
@id : 4,
child : 3,
keys : [ ],
exprs : [ {
ref : "EXPR$0",
expr : "count($f0) "
} ]
}, {
pop : "selection-vector-remover",
@id : 5,
child : 4
}, {
pop : "screen",
@id : 6,
child : 5
} ]
}
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