mingmwang commented on PR #5572: URL: https://github.com/apache/arrow-datafusion/pull/5572#issuecomment-1469432752
@yahoNanJing I think if we just to collect/search some information from a tree like structure, we do not need to define a Visitor `Trait`. A visitor in this case is actually just a map function (closure) we want to apply to a tree structure. For example, if we want to traverse a Vec/List container and collect/search some information, we do not need to define a `Visitor`. -- 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]
