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https://issues.apache.org/jira/browse/CALCITE-3348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated CALCITE-3348:
------------------------------------
    Labels: pull-request-available  (was: )

> AssertionError while determining distribution of Calc
> -----------------------------------------------------
>
>                 Key: CALCITE-3348
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3348
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Wang Yanlin
>            Priority: Major
>              Labels: pull-request-available
>
> When using *EnumerableCalcRule* with *RelDistributionTraitDef* for planner, 
> got
> {code:java}
> java.lang.AssertionError
>       at 
> org.apache.calcite.rel.metadata.RelMdDistribution.calc(RelMdDistribution.java:144)
>       at 
> org.apache.calcite.rel.logical.LogicalCalc.lambda$create$1(LogicalCalc.java:108)
>       at org.apache.calcite.plan.RelTraitSet.replaceIf(RelTraitSet.java:249)
>       at 
> org.apache.calcite.rel.logical.LogicalCalc.create(LogicalCalc.java:107)
>       at 
> org.apache.calcite.rel.rules.FilterToCalcRule.onMatch(FilterToCalcRule.java:77)
>       at 
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:208)
>       at 
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:631)
>       at 
> org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:327)
>       at 
> org.apache.calcite.test.RelOptRulesTest.testEnumerableCalcRule(RelOptRulesTest.java:6346)
>       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: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.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$2.evaluate(ParentRunner.java:268)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
>       at 
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
>       at 
> com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
>       at 
> com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
>       at 
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
> {code}



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