alamb commented on code in PR #4347:
URL: https://github.com/apache/arrow-datafusion/pull/4347#discussion_r1030862475
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datafusion/optimizer/src/optimizer.rs:
##########
@@ -351,6 +352,49 @@ mod tests {
Ok(())
}
+ #[test]
+ fn generate_same_schema_different_metadata() {
+ // if the plan creates more metadata than previously (because
+ // some wrapping functions are removed, etc) do not error
+ let opt = Optimizer::with_rules(vec![Arc::new(GetTableScanRule {})]);
Review Comment:
this test mimics what I was seeing in IOx
##########
datafusion/optimizer/src/optimizer.rs:
##########
@@ -225,7 +225,7 @@ impl Optimizer {
let result = rule.try_optimize(&new_plan, optimizer_config);
match result {
Ok(Some(plan)) => {
- if plan.schema() != new_plan.schema() {
+ if
!plan.schema().equivalent_names_and_types(new_plan.schema()) {
Review Comment:
This is the change
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