MohamedAbdeen21 commented on code in PR #10868:
URL: https://github.com/apache/datafusion/pull/10868#discussion_r1638098564
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datafusion/optimizer/src/common_subexpr_eliminate.rs:
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@@ -166,6 +166,15 @@ impl CommonSubexprEliminate {
) -> Result<(Vec<Vec<Expr>>, LogicalPlan)> {
let mut common_exprs = IndexMap::new();
+ input.schema().iter().for_each(|(qualifier, field)| {
Review Comment:
n is usually really small. I don't think this is a big performance hit, and
so filling the gaps is a good tradeoff IMO
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