thinkharderdev commented on code in PR #3574:
URL: https://github.com/apache/arrow-datafusion/pull/3574#discussion_r977447668
##########
datafusion/optimizer/src/type_coercion.rs:
##########
@@ -79,10 +79,29 @@ impl OptimizerRule for TypeCoercion {
const_evaluator,
};
+ let original_expr_names: Vec<Option<String>> = plan
+ .expressions()
+ .iter()
+ .map(|expr| expr.name().ok())
+ .collect();
+
let new_expr = plan
.expressions()
.into_iter()
- .map(|expr| expr.rewrite(&mut expr_rewrite))
+ .zip(original_expr_names)
+ .map(|(expr, original_name)| {
+ let expr = expr.rewrite(&mut expr_rewrite)?;
+
+ if matches!(expr, Expr::AggregateFunction { .. }) {
Review Comment:
Yeah, I agree
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