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https://issues.apache.org/jira/browse/HIVE-26652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alessandro Solimando updated HIVE-26652:
----------------------------------------
Fix Version/s: 4.0.0
> HiveSortPullUpConstantsRule produces an invalid plan when pulling up
> constants for nullable fields
> --------------------------------------------------------------------------------------------------
>
> Key: HIVE-26652
> URL: https://issues.apache.org/jira/browse/HIVE-26652
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Affects Versions: 4.0.0-alpha-2
> Reporter: Alessandro Solimando
> Assignee: Alessandro Solimando
> Priority: Major
> Fix For: 4.0.0, 4.0.0-alpha-2
>
>
> The rule pulls up constants without checking/adjusting nullability to match
> that of the field type.
> Here is the stack-trace when a nullable type is involved:
> {code:java}
> java.lang.AssertionError: type mismatch:
> ref:
> JavaType(class java.lang.Integer)
> input:
> JavaType(int) NOT NULL at
> org.apache.calcite.util.Litmus$1.fail(Litmus.java:31)
> at org.apache.calcite.plan.RelOptUtil.eq(RelOptUtil.java:2167)
> at org.apache.calcite.rex.RexChecker.visitInputRef(RexChecker.java:125)
> at org.apache.calcite.rex.RexChecker.visitInputRef(RexChecker.java:57)
> at org.apache.calcite.rex.RexInputRef.accept(RexInputRef.java:112)
> at org.apache.calcite.rel.core.Project.isValid(Project.java:215)
> at org.apache.calcite.rel.core.Project.<init>(Project.java:94)
> at org.apache.calcite.rel.core.Project.<init>(Project.java:100)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.HiveProject.<init>(HiveProject.java:58)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.HiveProject.copy(HiveProject.java:106)
> at org.apache.calcite.rel.core.Project.copy(Project.java:126)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.rules.HiveSortPullUpConstantsRule$HiveSortPullUpConstantsRuleBase.onMatch(HiveSortPullUpConstantsRule.java:195)
> at
> org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:333)
> at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:542)
> at org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:407)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:243)
> at
> org.apache.calcite.plan.hep.HepInstruction$RuleInstance.execute(HepInstruction.java:127)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:202)
> at org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:189)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.rules.TestHiveSortExchangePullUpConstantsRule.test(TestHiveSortExchangePullUpConstantsRule.java:104)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.rules.TestHiveSortExchangePullUpConstantsRule.testNullableFields(TestHiveSortExchangePullUpConstantsRule.java:156)
> 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.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.mockito.internal.runners.DefaultInternalRunner$1$1.evaluate(DefaultInternalRunner.java:54)
> at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
> at
> org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
> at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
> at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
> at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
> at
> org.mockito.internal.runners.DefaultInternalRunner$1.run(DefaultInternalRunner.java:99)
> at
> org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:105)
> at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:40)
> at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> at
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
> at
> com.intellij.rt.junit.IdeaTestRunner$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:235)
> at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) {code}
> The solution is to check nullability and add a cast when the field is
> nullable, since the constant's type is not.
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