szehon-ho commented on code in PR #50685:
URL: https://github.com/apache/spark/pull/50685#discussion_r2056939147


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/ResolveDefaultColumnsUtil.scala:
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@@ -376,7 +376,7 @@ object ResolveDefaultColumns extends QueryErrorsBase
     val expr = Literal.fromSQL(defaultSQL) match {
       // EXISTS_DEFAULT will have a cast from analyze() due to 
coerceDefaultValue

Review Comment:
   Yes in the happy path.
   
   There are unfortunately bugs from before though, where column 
exists_defaults were persisted as unresolved, hence the fallback mechanism.



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