alamb commented on code in PR #10333:
URL: https://github.com/apache/datafusion/pull/10333#discussion_r1596787866
##########
datafusion/optimizer/src/common_subexpr_eliminate.rs:
##########
@@ -656,24 +656,16 @@ enum VisitRecord {
EnterMark(usize),
/// the node's children were skipped => jump to f_up on same node
JumpMark,
- /// Accumulated identifier of sub expression.
- ExprItem(Identifier),
}
impl ExprIdentifierVisitor<'_> {
/// Find the first `EnterMark` in the stack, and accumulates every
`ExprItem`
/// before it.
- fn pop_enter_mark(&mut self) -> Option<(usize, Identifier)> {
- let mut desc = String::new();
-
- while let Some(item) = self.visit_stack.pop() {
+ fn pop_enter_mark(&mut self) -> Option<usize> {
Review Comment:
Revert PR is merged: https://github.com/apache/datafusion/pull/10436
And I am pretty stoked that @jonahgao is looking at
https://github.com/apache/datafusion/issues/10413#issuecomment-2104080364
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