mingmwang commented on code in PR #5322:
URL: https://github.com/apache/arrow-datafusion/pull/5322#discussion_r1116467854
##########
datafusion/physical-expr/src/utils.rs:
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@@ -235,6 +234,82 @@ pub fn ordering_satisfy_concrete<F: FnOnce() ->
EquivalenceProperties>(
}
}
+#[derive(Clone, Debug)]
+pub struct ExprTreeNode<T> {
Review Comment:
Yes, please add some comments, specifically for the `data` member.
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