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From "Vitalii Diravka (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-2385) count on complex objects failed with missing function implementation
Date Tue, 21 Jun 2016 13:41:57 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vitalii Diravka resolved DRILL-2385.
------------------------------------
    Resolution: Fixed

Fixed in f86c4fa8.

> count on complex objects failed with missing function implementation
> --------------------------------------------------------------------
>
>                 Key: DRILL-2385
>                 URL: https://issues.apache.org/jira/browse/DRILL-2385
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Functions - Drill
>    Affects Versions: 0.8.0
>            Reporter: Chun Chang
>            Assignee: Vitalii Diravka
>            Priority: Minor
>             Fix For: 1.7.0
>
>
> #Wed Mar 04 01:23:42 EST 2015
> git.commit.id.abbrev=71b6bfe
> Have a complex type looks like the following:
> {code}
> 0: jdbc:drill:schema=dfs.drillTestDirComplexJ> select t.sia from `complex.json` t
limit 1;
> +------------+
> |    sia     |
> +------------+
> | [1,11,101,1001] |
> +------------+
> {code}
> A count on the complex type will fail with missing function implementation:
> {code}
> 0: jdbc:drill:schema=dfs.drillTestDirComplexJ> select t.gbyi, count(t.sia) countsia
from `complex.json` t group by t.gbyi;
> Query failed: RemoteRpcException: Failure while running fragment., Schema is currently
null.  You must call buildSchema(SelectionVectorMode) before this container can return a schema.
[ 12856530-3133-45be-bdf4-ef8cc784f7b3 on qa-node119.qa.lab:31010 ]
> [ 12856530-3133-45be-bdf4-ef8cc784f7b3 on qa-node119.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> {code}
> drillbit.log
> {code}
> 2015-03-04 13:44:51,383 [2b08832b-9247-e90c-785d-751f02fc1548:frag:2:0] ERROR o.a.drill.exec.ops.FragmentContext
- Fragment Context received failure.
> org.apache.drill.exec.exception.SchemaChangeException: Failure while materializing expression.
> Error in expression at index 0.  Error: Missing function implementation: [count(BIGINT-REPEATED)].
 Full expression: null.
>         at org.apache.drill.exec.physical.impl.aggregate.HashAggBatch.createAggregatorInternal(HashAggBatch.java:210)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.aggregate.HashAggBatch.createAggregator(HashAggBatch.java:158)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.aggregate.HashAggBatch.buildSchema(HashAggBatch.java:101)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:130)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:67)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.partitionsender.PartitionSenderRootExec.innerNext(PartitionSenderRootExec.java:114)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:121)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:303)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_45]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_45]
>         at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
> 2015-03-04 13:44:51,383 [2b08832b-9247-e90c-785d-751f02fc1548:frag:2:0] WARN  o.a.d.e.w.fragment.FragmentExecutor
- Error while initializing or executing fragment
> java.lang.NullPointerException: Schema is currently null.  You must call buildSchema(SelectionVectorMode)
before this container can return a schema.
>         at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:208)
~[guava-14.0.1.jar:na]
>         at org.apache.drill.exec.record.VectorContainer.getSchema(VectorContainer.java:261)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.record.AbstractRecordBatch.getSchema(AbstractRecordBatch.java:155)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.getSchema(IteratorValidatorBatchIterator.java:75)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.partitionsender.PartitionSenderRootExec.sendEmptyBatch(PartitionSenderRootExec.java:276)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.partitionsender.PartitionSenderRootExec.innerNext(PartitionSenderRootExec.java:131)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:121)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:303)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_45]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_45]
>         at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
> {code}
> physical plan:
> {code}
> 0: jdbc:drill:schema=dfs.drillTestDirComplexJ> explain plan for select t.gbyi, count(t.sia)
countsia from `complex.json` t group by t.gbyi;
> +------------+------------+
> |    text    |    json    |
> +------------+------------+
> | 00-00    Screen
> 00-01      Project(gbyi=[$0], countsia=[$1])
> 00-02        UnionExchange
> 01-01          HashAgg(group=[{0}], countsia=[$SUM0($1)])
> 01-02            HashToRandomExchange(dist0=[[$0]])
> 02-01              HashAgg(group=[{0}], countsia=[COUNT($1)])
> 02-02                Project(gbyi=[$1], sia=[$0])
> 02-03                  Scan(groupscan=[EasyGroupScan [selectionRoot=/drill/testdata/complex_type/json/complex.json,
numFiles=1, columns=[`gbyi`, `sia`], files=[maprfs:/drill/testdata/complex_type/json/complex.json]]])
> {code}



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