alamb commented on issue #10871: URL: https://github.com/apache/datafusion/issues/10871#issuecomment-2170336713
Thank you @LorrensP-2158466 -- sorry for the delay . I have been traveling > I do have a question. > How can we show these results? Because Analyzer rules only return transformed LogicalPlans, or do I understand something in a wrong way? I think in an example, we can use `println!` which is what we do in other examples: https://github.com/apache/datafusion/blob/3773fb7fb54419f889e7d18b73e9eb48069eb08e/datafusion-examples/examples/rewrite_expr.rs#L45-L48 Normally the idea is to give a well documented example that shows the basic pattern that people can start with For this one, maybe you could show how to use `TreeNode::apply` to walk the tree. Something like (totally untested) ```rust let mut join_count = 0; plan.apply(|child| { if matches!(child, LogicalPlan::Join(_)) { join_count += 1; } }); println!("Found {join_count} joins in the plan"); ``` -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
