shrirangmhalgi commented on code in PR #55892:
URL: https://github.com/apache/spark/pull/55892#discussion_r3284562574
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -3260,9 +3260,11 @@ class Analyzer(
// The star will be expanded differently if we insert `Generate` under
`Project` too early.
case p @ Project(projectList, child) if
!projectList.exists(_.exists(_.isInstanceOf[Star])) =>
val (resolvedGenerator, newProjectList) = projectList
- .map(trimNonTopLevelAliases)
.foldLeft((None: Option[Generate], Nil: Seq[NamedExpression])) {
(res, e) =>
- e match {
+ // SPARK-48091: Only trim aliases on the generator expression
itself. Trimming
+ // non-generator expressions strips aliases inside lambda
functions (e.g.,
+ // struct(x.as("data"))) before they can be resolved into struct
field names.
Review Comment:
Having a broader solution makes more sense. Added the same in the followup
commit. This is no longer relevant.
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