szehon-ho commented on code in PR #53360:
URL: https://github.com/apache/spark/pull/53360#discussion_r2613079515
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/AssignmentUtils.scala:
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@@ -204,14 +228,71 @@ object AssignmentUtils extends SQLConfHelper with
CastSupport {
}
val updatedFieldExprs = fieldAttrs.zip(fieldExprs).map { case
(fieldAttr, fieldExpr) =>
applyAssignments(fieldAttr, fieldExpr, assignments, addError,
colPath :+ fieldAttr.name,
- coerceNestedTypes)
+ coerceNestedTyptes)
+ }
+ toNamedStruct(structType, updatedFieldExprs)
+
+ case otherType =>
+ addError(
+ "Updating nested fields is only supported for StructType but " +
+ s"'${colPath.quoted}' is of type $otherType")
+ colExpr
+ }
+ }
+
+ private def applyNestedFieldAssignments(
Review Comment:
note: this is like applyFieldAssignment above, but recurses to all nested
fields
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