Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19873#discussion_r154863367
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala
---
@@ -280,7 +280,7 @@ object TypeCoercion {
*/
object WidenSetOperationTypes extends Rule[LogicalPlan] {
- def apply(plan: LogicalPlan): LogicalPlan = plan resolveOperators {
+ def apply(plan: LogicalPlan): LogicalPlan = plan transformUp {
case p if p.analyzed => p
--- End diff --
In which cases, we should still use the `analyzed ` flag?
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