Ted-Jiang commented on code in PR #4254:
URL: https://github.com/apache/arrow-datafusion/pull/4254#discussion_r1024728346
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datafusion/optimizer/src/propagate_empty_relation.rs:
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@@ -120,14 +120,13 @@ impl OptimizerRule for PropagateEmptyRelation {
Ok(LogicalPlan::Projection(Projection::new_from_schema(
Arc::new(child),
optimized_children_plan.schema().clone(),
- union.alias.clone(),
+ None
Review Comment:
@jackwener After
https://github.com/apache/arrow-datafusion/commit/4dcf9857c0aad3d11050037bd46889a54f83a394
no field `alias` on `Union`,
Is there ok pass `none` here?
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