[jira] [Updated] (CALCITE-4432) When the RelNode's input is the same subset as the node belonged to, not choose this node as best.

[Ziwei Liu (Jira)]

     [ 
https://issues.apache.org/jira/browse/CALCITE-4432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ziwei Liu updated CALCITE-4432:
-------------------------------
    Description: If a subset have a cyclic node, the node's input is this 
subset itself. If the beset 

> When the RelNode's input is the same subset as the node belonged to, not 
> choose this node as best.
> --------------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-4432
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4432
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Ziwei Liu
>            Assignee: Ziwei Liu
>            Priority: Major
>
> If a subset have a cyclic node, the node's input is this subset itself. If 
> the beset 



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