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https://issues.apache.org/jira/browse/CALCITE-6041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17776212#comment-17776212
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Ran Tao edited comment on CALCITE-6041 at 10/17/23 4:11 PM:
------------------------------------------------------------
By digging the code, Frankly speaking, it seems like map subquery has never
worked properly since very early versions. the NPE from CALCITE-4999 is not
the root cause.
was (Author: lemonjing):
By digging the code, Frankly speaking, it seems like map subquery has never
worked properly since very early versions.
> MAP subquery gives NullPointerException
> ---------------------------------------
>
> Key: CALCITE-6041
> URL: https://issues.apache.org/jira/browse/CALCITE-6041
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.35.0
> Reporter: Ran Tao
> Assignee: Ran Tao
> Priority: Major
> Fix For: 1.36.0
>
>
> calcite support array/map/multiset query constructor, but if we run map query
> such as:
> {code:java}
> select map(select 1, 2)
> select map(select empno, deptno from emps); {code}
> If will cause exception:
> {noformat}
> java.sql.SQLException: Error while executing SQL "select map(select 1, 2)":
> Unable to implement EnumerableNestedLoopJoin(condition=[true],
> joinType=[semi]): rowcount = 1.0, cumulative cost = \{13.0 rows, 3.0 cpu, 0.0
> io}, id = 72
> EnumerableCollect(field=[x]): rowcount = 1.0, cumulative cost = \{2.0 rows,
> 2.0 cpu, 0.0 io}, id = 69
> EnumerableValues(tuples=[[\\{ 1, 2 }]]): rowcount = 1.0, cumulative cost
> = \{1.0 rows, 1.0 cpu, 0.0 io}, id = 38
> EnumerableValues(tuples=[[\\{ 0 }]]): rowcount = 1.0, cumulative cost =
> \{1.0 rows, 1.0 cpu, 0.0 io}, id = 35
> at org.apache.calcite.avatica.Helper.createException(Helper.java:56)
> at org.apache.calcite.avatica.Helper.createException(Helper.java:41)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:164)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:228)
> at
> org.apache.calcite.test.SqlOperatorTest$TesterImpl.check(SqlOperatorTest.java:13107)
> at
> org.apache.calcite.sql.test.SqlOperatorFixture.check(SqlOperatorFixture.java:439)
> at
> org.apache.calcite.sql.test.SqlOperatorFixture.check(SqlOperatorFixture.java:415)
> at
> org.apache.calcite.sql.test.SqlOperatorFixture.check(SqlOperatorFixture.java:420)
> at
> org.apache.calcite.test.SqlOperatorTest.testMapQueryConstructor(SqlOperatorTest.java:10235)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)
> at
> org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
> at
> org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
> at
> org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
> at
> org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
> at
> org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
> at
> org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
> at
> org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
> at
> org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
> at
> org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
> at
> org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
> at
> org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
> at
> org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
> at
> org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
> at
> org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)
> at
> org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)
> at
> org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
> at
> org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
> at java.util.ArrayList.forEach(ArrayList.java:1259)
> at
> org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
> at
> org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
> at java.util.ArrayList.forEach(ArrayList.java:1259)
> at
> org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
> at
> org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
> at
> org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
> at
> org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
> at
> org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
> at
> org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
> at
> org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
> at
> org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
> at
> org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
> at
> org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
> at
> org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
> at
> org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
> at
> org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
> at
> org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
> at
> org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
> at
> org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
> at
> org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
> at
> com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
> at
> com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
> at
> com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
> at
> com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
> at
> com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
> at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
> Caused by: java.lang.IllegalStateException: Unable to implement
> EnumerableNestedLoopJoin(condition=[true], joinType=[semi]): rowcount = 1.0,
> cumulative cost = \{13.0 rows, 3.0 cpu, 0.0 io}, id = 72
> EnumerableCollect(field=[x]): rowcount = 1.0, cumulative cost = \{2.0 rows,
> 2.0 cpu, 0.0 io}, id = 69
> EnumerableValues(tuples=[[\\{ 1, 2 }]]): rowcount = 1.0, cumulative cost
> = \{1.0 rows, 1.0 cpu, 0.0 io}, id = 38
> EnumerableValues(tuples=[[\\{ 0 }]]): rowcount = 1.0, cumulative cost =
> \{1.0 rows, 1.0 cpu, 0.0 io}, id = 35
> at
> org.apache.calcite.adapter.enumerable.EnumerableRelImplementor.implementRoot(EnumerableRelImplementor.java:117)
> at
> org.apache.calcite.adapter.enumerable.EnumerableInterpretable.toBindable(EnumerableInterpretable.java:112)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl$CalcitePreparingStmt.implement(CalcitePrepareImpl.java:1171)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:324)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:220)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:666)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:519)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:487)
> at
> org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:236)
> at
> org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:702)
> at
> org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:677)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:157)
> ... 76 more
> Suppressed: java.lang.NullPointerException
> at java.util.Objects.requireNonNull(Objects.java:203)
> at
> org.apache.calcite.adapter.enumerable.EnumerableCollect.implement(EnumerableCollect.java:99)
> at
> org.apache.calcite.adapter.enumerable.EnumerableRelImplementor.visitChild(EnumerableRelImplementor.java:107)
> at
> org.apache.calcite.adapter.enumerable.EnumerableNestedLoopJoin.implement(EnumerableNestedLoopJoin.java:155)
> at
> org.apache.calcite.adapter.enumerable.EnumerableRelImplementor.implementRoot(EnumerableRelImplementor.java:114)
> ... 87 more
> {noformat}
> It seems that currently the ability of MapQueryConstructor can not truly
> works. btw, we are missing the test case of MapQueryConstructor, so it cannot
> be covered in build pipeline currently.
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