jackwener commented on code in PR #4618:
URL: https://github.com/apache/arrow-datafusion/pull/4618#discussion_r1048602752
##########
datafusion/optimizer/src/optimizer.rs:
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@@ -69,6 +69,11 @@ pub trait OptimizerRule {
/// A human readable name for this optimizer rule
fn name(&self) -> &str;
+
+ /// If a rule use default None, its should traverse recursively plan
inside itself
+ fn apply_order(&self) -> Option<ApplyOrder> {
+ None
+ }
Review Comment:
It' compatible with origin
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