[
https://issues.apache.org/jira/browse/DRILL-2637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14389341#comment-14389341
]
Khurram Faraaz commented on DRILL-2637:
---------------------------------------
My attempt to cast the two inputs to Union All resulted in CannotPlanException
{code}
0: jdbc:drill:> select count(c1) from (select cast(columns[0] as int) c1 from
`testWindow.csv`) union all (select cast(columns[0] as int) c2 from
`testWindow.csv`);
Query failed: RelOptPlanner.CannotPlanException: Node
[rel#58937:Subset#4.LOGICAL.ANY([]).[]] could not be implemented; planner state:
Root: rel#58937:Subset#4.LOGICAL.ANY([]).[]
Original rel:
AbstractConverter(subset=[rel#58937:Subset#4.LOGICAL.ANY([]).[]],
convention=[LOGICAL], DrillDistributionTraitDef=[ANY([])], sort=[[]]): rowcount
= 1.7976931348623157E308, cumulative cost = {inf}, id = 58938
UnionRel(subset=[rel#58936:Subset#4.NONE.ANY([]).[]], all=[true]): rowcount =
1.7976931348623157E308, cumulative cost = {1.7976931348623157E308 rows,
1.7976931348623157E308 cpu, 0.0 io, 0.0 network, 0.0 memory}, id = 58935
AggregateRel(subset=[rel#58932:Subset#2.NONE.ANY([]).[]], group=[{}],
EXPR$0=[COUNT($0)]): rowcount = 1.7976931348623158E307, cumulative cost =
{1.7976931348623158E307 rows, 0.0 cpu, 0.0 io, 0.0 network, 0.0 memory}, id =
58931
ProjectRel(subset=[rel#58930:Subset#1.NONE.ANY([]).[]], c1=[CAST(ITEM($1,
0)):INTEGER]): rowcount = 100.0, cumulative cost = {100.0 rows, 100.0 cpu, 0.0
io, 0.0 network, 0.0 memory}, id = 58929
EnumerableTableAccessRel(subset=[rel#58928:Subset#0.ENUMERABLE.ANY([]).[]],
table=[[dfs, tmp, testWindow.csv]]): rowcount = 100.0, cumulative cost = {100.0
rows, 101.0 cpu, 0.0 io, 0.0 network, 0.0 memory}, id = 58912
ProjectRel(subset=[rel#58934:Subset#3.NONE.ANY([]).[]], c2=[CAST(ITEM($1,
0)):INTEGER]): rowcount = 100.0, cumulative cost = {100.0 rows, 100.0 cpu, 0.0
io, 0.0 network, 0.0 memory}, id = 58933
EnumerableTableAccessRel(subset=[rel#58928:Subset#0.ENUMERABLE.ANY([]).[]],
table=[[dfs, tmp, testWindow.csv]]): rowcount = 100.0, cumulative cost = {100.0
rows, 101.0 cpu, 0.0 io, 0.0 network, 0.0 memory}, id = 58912
Sets:
Set#0, type: (DrillRecordRow[*, columns])
rel#58928:Subset#0.ENUMERABLE.ANY([]).[], best=rel#58912,
importance=0.6561
rel#58912:EnumerableTableAccessRel.ENUMERABLE.ANY([]).[](table=[dfs, tmp,
testWindow.csv]), rowcount=100.0, cumulative cost={100.0 rows, 101.0 cpu, 0.0
io, 0.0 network, 0.0 memory}
rel#58952:AbstractConverter.ENUMERABLE.ANY([]).[](child=rel#58951:Subset#0.LOGICAL.ANY([]).[],convention=ENUMERABLE,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.0, cumulative cost={inf}
rel#58951:Subset#0.LOGICAL.ANY([]).[], best=rel#58959,
importance=0.5904900000000001
rel#58953:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58928:Subset#0.ENUMERABLE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=100.0, cumulative cost={inf}
rel#58959:DrillScanRel.LOGICAL.ANY([]).[](table=[dfs, tmp,
testWindow.csv],groupscan=EasyGroupScan [selectionRoot=/tmp/testWindow.csv,
numFiles=1, columns=[`*`], files=[maprfs:/tmp/testWindow.csv]]), rowcount=1.0,
cumulative cost={1.0 rows, 10000.0 cpu, 0.0 io, 0.0 network, 0.0 memory}
Set#1, type: RecordType(INTEGER c1)
rel#58930:Subset#1.NONE.ANY([]).[], best=null,
importance=0.7290000000000001
rel#58929:ProjectRel.NONE.ANY([]).[](child=rel#58928:Subset#0.ENUMERABLE.ANY([]).[],c1=CAST(ITEM($1,
0)):INTEGER), rowcount=100.0, cumulative cost={inf}
rel#58948:Subset#1.LOGICAL.ANY([]).[], best=rel#58957,
importance=0.36450000000000005
rel#58949:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58930:Subset#1.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
rel#58957:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58946:Subset#5.LOGICAL.ANY([]).[],c1=CAST(ITEM($0,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 5.0 cpu, 0.0 io, 0.0
network, 0.0 memory}
rel#58958:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58951:Subset#0.LOGICAL.ANY([]).[],c1=CAST(ITEM($1,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 10004.0 cpu, 0.0 io,
0.0 network, 0.0 memory}
Set#2, type: RecordType(BIGINT EXPR$0)
rel#58932:Subset#2.NONE.ANY([]).[], best=null, importance=0.81
rel#58931:AggregateRel.NONE.ANY([]).[](child=rel#58930:Subset#1.NONE.ANY([]).[],group={},EXPR$0=COUNT($0)),
rowcount=1.7976931348623158E307, cumulative cost={inf}
rel#58939:Subset#2.LOGICAL.ANY([]).[], best=rel#58950, importance=0.405
rel#58940:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58932:Subset#2.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
rel#58950:DrillAggregateRel.LOGICAL.ANY([]).[](child=rel#58948:Subset#1.LOGICAL.ANY([]).[],group={},EXPR$0=COUNT($0)),
rowcount=1.0, cumulative cost={3.0 rows, 6.0 cpu, 0.0 io, 0.0 network, 0.0
memory}
Set#3, type: RecordType(INTEGER c2)
rel#58934:Subset#3.NONE.ANY([]).[], best=null, importance=0.81
rel#58933:ProjectRel.NONE.ANY([]).[](child=rel#58928:Subset#0.ENUMERABLE.ANY([]).[],c2=CAST(ITEM($1,
0)):INTEGER), rowcount=100.0, cumulative cost={inf}
rel#58941:Subset#3.LOGICAL.ANY([]).[], best=rel#58947, importance=0.405
rel#58942:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58934:Subset#3.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
rel#58947:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58946:Subset#5.LOGICAL.ANY([]).[],c2=CAST(ITEM($0,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 5.0 cpu, 0.0 io, 0.0
network, 0.0 memory}
rel#58954:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58951:Subset#0.LOGICAL.ANY([]).[],c2=CAST(ITEM($1,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 10004.0 cpu, 0.0 io,
0.0 network, 0.0 memory}
Set#4, type: RecordType(BIGINT EXPR$0)
rel#58936:Subset#4.NONE.ANY([]).[], best=null, importance=0.9
rel#58935:UnionRel.NONE.ANY([]).[](input#0=rel#58932:Subset#2.NONE.ANY([]).[],input#1=rel#58934:Subset#3.NONE.ANY([]).[],all=true),
rowcount=1.7976931348623157E308, cumulative cost={inf}
rel#58937:Subset#4.LOGICAL.ANY([]).[], best=null, importance=1.0
rel#58938:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58936:Subset#4.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
Set#5, type: RecordType(ANY columns)
rel#58946:Subset#5.LOGICAL.ANY([]).[], best=rel#58944,
importance=0.12728571428571428
rel#58944:DrillScanRel.LOGICAL.ANY([]).[](table=[dfs, tmp,
testWindow.csv],groupscan=EasyGroupScan [selectionRoot=/tmp/testWindow.csv,
numFiles=1, columns=[`columns`[0]], files=[maprfs:/tmp/testWindow.csv]]),
rowcount=1.0, cumulative cost={1.0 rows, 1.0 cpu, 0.0 io, 0.0 network, 0.0
memory}
Error: exception while executing query: Failure while executing query.
(state=,code=0)
{code}
Stack trace from the drillbit.log
{code}
Set#5, type: RecordType(ANY columns)
rel#58946:Subset#5.LOGICAL.ANY([]).[], best=rel#58944,
importance=0.12728571428571428
rel#58944:DrillScanRel.LOGICAL.ANY([]).[](table=[dfs, tmp,
testWindow.csv],groupscan=EasyGroupScan [selectionRoot=/tmp/testWindow.csv,
numFiles=1, columns=[`columns`[0]], files=[maprfs:/tmp/testWindow.csv]]),
rowcount=1.0, cumulative cost={1.0 rows, 1.0 cpu, 0.0 io, 0.0 network, 0.0
memory}
at
org.eigenbase.relopt.volcano.RelSubset$CheapestPlanReplacer.visit(RelSubset.java:445)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.relopt.volcano.RelSubset.buildCheapestPlan(RelSubset.java:287)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.relopt.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:677)
~[optiq-core-0.9-drill-r20.jar:na]
at
net.hydromatic.optiq.tools.Programs$RuleSetProgram.run(Programs.java:165)
~[optiq-core-0.9-drill-r20.jar:na]
at
net.hydromatic.optiq.prepare.PlannerImpl.transform(PlannerImpl.java:275)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:206)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at
org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:138)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at
org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:773)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
... 3 common frames omitted
{code}
> Schema change reported incorrectly although both the input columns are of
> same datatype
> ---------------------------------------------------------------------------------------
>
> Key: DRILL-2637
> URL: https://issues.apache.org/jira/browse/DRILL-2637
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 0.9.0
> Reporter: Khurram Faraaz
>
> Schema change is reported incorrectly, although the two columns hold data of
> same datatype, and those two columns are input to Union All and an aggregate
> count is performed on the results returned by Union All.
> Tests were run on 4 node cluster.
> {code}
> 0: jdbc:drill:> select c1 from (select columns[0] c1 from `testWindow.csv`)
> union all (select columns[0] c2 from `testWindow.csv`);
> +------------+
> | c1 |
> +------------+
> | 100 |
> | 10 |
> | 2 |
> | 50 |
> | 55 |
> | 67 |
> | 113 |
> | 119 |
> | 89 |
> | 57 |
> | 61 |
> | 100 |
> | 10 |
> | 2 |
> | 50 |
> | 55 |
> | 67 |
> | 113 |
> | 119 |
> | 89 |
> | 57 |
> | 61 |
> +------------+
> 22 rows selected (0.121 seconds)
> {code}
> {code}
> 0: jdbc:drill:> select count(c1) from (select columns[0] c1 from
> `testWindow.csv`) union all (select columns[0] c2 from `testWindow.csv`);
> +------------+
> | EXPR$0 |
> +------------+
> Query failed: Query stopped., Schema change detected in the left input of
> Union-All. This is not currently supported [
> 57dd6384-fb23-4ab0-aee9-fb7def390788 on centos-04.qa.lab:31010 ]
> java.lang.RuntimeException: java.sql.SQLException: Failure while executing
> query.
> at sqlline.SqlLine$IncrementalRows.hasNext(SqlLine.java:2514)
> at sqlline.SqlLine$TableOutputFormat.print(SqlLine.java:2148)
> at sqlline.SqlLine.print(SqlLine.java:1809)
> at sqlline.SqlLine$Commands.execute(SqlLine.java:3766)
> at sqlline.SqlLine$Commands.sql(SqlLine.java:3663)
> at sqlline.SqlLine.dispatch(SqlLine.java:889)
> at sqlline.SqlLine.begin(SqlLine.java:763)
> at sqlline.SqlLine.start(SqlLine.java:498)
> at sqlline.SqlLine.main(SqlLine.java:460)
> {code}
> Stack trace from drillbit.log
> {code}
> 2015-03-31 20:10:07,825 [2ae500df-db85-2583-fa7f-b89beb7e5ac0:frag:0:0] ERROR
> o.a.drill.exec.work.foreman.Foreman - Error
> 0b4d9b3a-d8af-4dc9-be47-46c4547a793a: RemoteRpcException: Failure while
> running fragment., Schema change detected in the left input of Union-All.
> This is not currently supported [ b9555eb8-c009-4e9c-b058-ffae3f015df7 on
> centos-04.qa.lab:31010 ]
> [ b9555eb8-c009-4e9c-b058-ffae3f015df7 on centos-04.qa.lab:31010 ]
> org.apache.drill.exec.rpc.RemoteRpcException: Failure while running
> fragment., Schema change detected in the left input of Union-All. This is not
> currently supported [ b9555eb8-c009-4e9c-b058-ffae3f015df7 on
> centos-04.qa.lab:31010 ]
> [ b9555eb8-c009-4e9c-b058-ffae3f015df7 on centos-04.qa.lab:31010 ]
> at
> org.apache.drill.exec.work.foreman.QueryManager.statusUpdate(QueryManager.java:163)
> [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.foreman.QueryManager$RootStatusReporter.statusChange(QueryManager.java:281)
> [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.AbstractStatusReporter.fail(AbstractStatusReporter.java:114)
> [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.AbstractStatusReporter.fail(AbstractStatusReporter.java:110)
> [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.internalFail(FragmentExecutor.java:230)
> [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:165)
> [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
> [drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> [na:1.7.0_75]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_75]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> 2015-03-31 20:10:07,825 [2ae500df-db85-2583-fa7f-b89beb7e5ac0:frag:0:0] WARN
> o.a.d.e.w.fragment.FragmentExecutor - Error while initializing or executing
> fragment
> java.lang.RuntimeException: Error closing fragment context.
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.closeOutResources(FragmentExecutor.java:224)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:166)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
> [drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> [na:1.7.0_75]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_75]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> Caused by: org.apache.drill.exec.exception.SchemaChangeException: Schema
> change detected in the left input of Union-All. This is not currently
> supported
> at
> org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch$UnionAllInput.nextBatch(UnionAllRecordBatch.java:353)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch.innerNext(UnionAllRecordBatch.java:102)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:68)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:96)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:58)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:163)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> ... 4 common frames omitted
> 2015-03-31 20:10:07,826 [2ae500df-db85-2583-fa7f-b89beb7e5ac0:frag:0:0] ERROR
> o.a.drill.exec.ops.FragmentContext - Fragment Context received failure --
> Fragment: 0:0
> java.lang.RuntimeException: Error closing fragment context.
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.closeOutResources(FragmentExecutor.java:224)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:166)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
> [drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> [na:1.7.0_75]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_75]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> Caused by: org.apache.drill.exec.exception.SchemaChangeException: Schema
> change detected in the left input of Union-All. This is not currently
> supported
> at
> org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch$UnionAllInput.nextBatch(UnionAllRecordBatch.java:353)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch.innerNext(UnionAllRecordBatch.java:102)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:68)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:96)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:58)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:163)
> ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
> ... 4 common frames omitted
> {code}
> Details of version
> {code}
> | 9d92b8e319f2d46e8659d903d355450e15946533 | DRILL-2580: Exit early from
> HashJoinBatch if build side is empty | 26.03.2015 @ 16:13:53 EDT | Unknown
> | 26.03.2015 @ 16:53:21 EDT |
> {code}
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