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https://issues.apache.org/jira/browse/CALCITE-4047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17135383#comment-17135383
]
Chunwei Lei commented on CALCITE-4047:
--------------------------------------
Thank you for reporting this, [~jamie12221]. Could you provide a test case to
reproduce it?
> at
> org.apache.calcite.rel.rules.PushProjector.getAdjustments(java.lang.ArrayIndexOutOfBoundsException:
> 0)
> ---------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4047
> URL: https://issues.apache.org/jira/browse/CALCITE-4047
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.23.0
> Reporter: jamie12221
> Priority: Trivial
>
>
>
> {code:java}
> 28:LogicalUnion(all=[true])
> 21:LogicalProject
> 20:LogicalTableScan(table=[[db1]])
> 23:LogicalProject
> 22:LogicalTableScan(table=[[db2]])
> 25:LogicalProject
> 24:LogicalTableScan(table=[[db3]])
> 27:LogicalProject
> 26:LogicalTableScan(table=[[db3]])
> {code}
>
>
> {code:java}
> 16:32:01 T=noBindingExecutor0 [org.apache.calcite.plan.RelOptPlanner fireRule
> at 324]-[DEBUG] call#3: Apply rule [ProjectSetOpTransposeRule] to
> [rel#44:LogicalProject.NONE.[](input=HepRelVertex#43,exprs=[1]),
> rel#42:LogicalUnion.NONE.[](input#0=HepRelVertex#32,input#1=HepRelVertex#35,input#2=HepRelVertex#38,input#3=HepRelVertex#41,all=true)]16:32:01
> T=noBindingExecutor0 [io.mycat.proxy.session.Session setLastMessage at
> 122]-[ERROR] java.lang.ArrayIndexOutOfBoundsException: 0 at
> org.apache.calcite.rel.rules.PushProjector.getAdjustments(PushProjector.java:572)
> at
> org.apache.calcite.rel.rules.ProjectSetOpTransposeRule.onMatch(ProjectSetOpTransposeRule.java:92)
> at
> org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:338)
> at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:540) at
> org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:405) at
> org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:270)
> at
> org.apache.calcite.plan.hep.HepInstruction$RuleCollection.execute(HepInstruction.java:74)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:201) at
> org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:188)
> {code}
>
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