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https://issues.apache.org/jira/browse/CALCITE-3793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Danny Chen updated CALCITE-3793:
--------------------------------
    Description: 
Here is the stack from Flink


{code:xml}
java.lang.AssertionError
        at 
org.apache.calcite.rel.type.RelDataTypeImpl.getFieldList(RelDataTypeImpl.java:146)
        at org.apache.calcite.plan.hep.HepPlanner.key(HepPlanner.java:923)
        at 
org.apache.calcite.plan.hep.HepPlanner.addRelToGraph(HepPlanner.java:832)
        at org.apache.calcite.plan.hep.HepPlanner.setRoot(
{code}


> AssertionError throws for planner digest cache key when the rel type is not 
> struct
> ----------------------------------------------------------------------------------
>
>                 Key: CALCITE-3793
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3793
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.22.0
>            Reporter: Danny Chen
>            Assignee: Danny Chen
>            Priority: Blocker
>             Fix For: 1.22.0
>
>
> Here is the stack from Flink
> {code:xml}
> java.lang.AssertionError
>       at 
> org.apache.calcite.rel.type.RelDataTypeImpl.getFieldList(RelDataTypeImpl.java:146)
>       at org.apache.calcite.plan.hep.HepPlanner.key(HepPlanner.java:923)
>       at 
> org.apache.calcite.plan.hep.HepPlanner.addRelToGraph(HepPlanner.java:832)
>       at org.apache.calcite.plan.hep.HepPlanner.setRoot(
> {code}



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