mosche opened a new pull request, #3050: URL: https://github.com/apache/calcite/pull/3050
When using `CheapestPlanReplacer`, semantics of a `RelNode` tree change if it contains the same node multiple times in case this node has inputs itself that have to be replaced. During replacement such nodes get copied on each occurrence. Instead `CheapestPlanReplacer` should memoize previously visited nodes and emit the same result again in the that case. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
