Stephen Allen created JENA-1041:
-----------------------------------
Summary: NotImplemented Exception in OptTopN
Key: JENA-1041
URL: https://issues.apache.org/jira/browse/JENA-1041
Project: Apache Jena
Issue Type: Bug
Components: ARQ
Affects Versions: Jena 3.0.1
Reporter: Stephen Allen
A NotImplemented exception is thrown in 3.0.1-SNAPSHOT for queries that contain
a subquery with order by/limit (i.e. TopN).
See unit test {{testTopN}} in attachment for example.
{code}
org.apache.jena.atlas.lib.NotImplemented
at
org.apache.jena.sparql.engine.main.VarFinder$VarUsageVisitor.no(VarFinder.java:320)
at
org.apache.jena.sparql.engine.main.VarFinder$VarUsageVisitor.visit(VarFinder.java:333)
at org.apache.jena.sparql.algebra.op.OpTopN.visit(OpTopN.java:50)
at
org.apache.jena.sparql.engine.main.VarFinder$VarUsageVisitor.apply(VarFinder.java:81)
at
org.apache.jena.sparql.engine.main.VarFinder.<init>(VarFinder.java:68)
at
org.apache.jena.sparql.engine.main.JoinClassifier.check(JoinClassifier.java:91)
at
org.apache.jena.sparql.engine.main.JoinClassifier.isLinear(JoinClassifier.java:66)
at
org.apache.jena.sparql.engine.main.JoinClassifier.isLinear(JoinClassifier.java:38)
at
org.apache.jena.sparql.algebra.optimize.TransformJoinStrategy.transform(TransformJoinStrategy.java:39)
at
org.apache.jena.sparql.algebra.TransformWrapper.transform(TransformWrapper.java:71)
at org.apache.jena.sparql.algebra.op.OpJoin.apply(OpJoin.java:75)
at
org.apache.jena.sparql.algebra.Transformer$ApplyTransformVisitor.visit2(Transformer.java:366)
at
org.apache.jena.sparql.algebra.OpVisitorByType.visit(OpVisitorByType.java:80)
at org.apache.jena.sparql.algebra.op.OpJoin.visit(OpJoin.java:78)
at
org.apache.jena.sparql.algebra.OpWalker$WalkerVisitor.visit2(OpWalker.java:107)
at
org.apache.jena.sparql.algebra.OpVisitorByType.visit(OpVisitorByType.java:80)
at org.apache.jena.sparql.algebra.op.OpJoin.visit(OpJoin.java:78)
at org.apache.jena.sparql.algebra.OpWalker.walk(OpWalker.java:43)
at org.apache.jena.sparql.algebra.OpWalker.walk(OpWalker.java:38)
at
org.apache.jena.sparql.algebra.Transformer.applyTransformation(Transformer.java:147)
at
org.apache.jena.sparql.algebra.Transformer.transformation(Transformer.java:140)
at
org.apache.jena.sparql.algebra.Transformer.transformation(Transformer.java:129)
at
org.apache.jena.sparql.algebra.Transformer.transformation(Transformer.java:123)
at
org.apache.jena.sparql.algebra.Transformer.transform(Transformer.java:56)
at
org.apache.jena.sparql.algebra.Transformer.transformSkipService(Transformer.java:86)
at
org.apache.jena.sparql.algebra.Transformer.transformSkipService(Transformer.java:68)
at
org.apache.jena.sparql.algebra.optimize.Optimize.apply(Optimize.java:277)
at
org.apache.jena.sparql.algebra.optimize.Optimize.rewrite(Optimize.java:212)
at
org.apache.jena.sparql.algebra.optimize.Optimize.optimize(Optimize.java:78)
at org.apache.jena.sparql.algebra.Algebra.optimize(Algebra.java:65)
at
org.apache.jena.sparql.engine.main.QueryEngineMain.modifyOp(QueryEngineMain.java:67)
at
org.apache.jena.sparql.engine.QueryEngineBase.createPlan(QueryEngineBase.java:101)
at
org.apache.jena.sparql.engine.QueryEngineBase.getPlan(QueryEngineBase.java:87)
at
org.apache.jena.sparql.engine.main.QueryEngineMain$QueryEngineMainFactory.create(QueryEngineMain.java:91)
at
org.apache.jena.sparql.engine.QueryExecutionBase.getPlan(QueryExecutionBase.java:578)
at
org.apache.jena.sparql.engine.QueryExecutionBase.startQueryIterator(QueryExecutionBase.java:522)
at
org.apache.jena.sparql.engine.QueryExecutionBase.execResultSet(QueryExecutionBase.java:563)
at
org.apache.jena.sparql.engine.QueryExecutionBase.execSelect(QueryExecutionBase.java:183)
at arq.TestSubQueryTopN.testTopN(TestSubQueryTopN.java:135)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
{code}
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