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Julian Hyde commented on CALCITE-4432: -------------------------------------- That sounds plausible. Do you have a solution for people not using the top-down driver? Besides “use the top-down driver”. > 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 -- This message was sent by Atlassian Jira (v8.3.4#803005)