uros-b commented on code in PR #56831:
URL: https://github.com/apache/spark/pull/56831#discussion_r3485897355
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/package.scala:
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@@ -100,6 +100,13 @@ package object expressions {
// to an array.
@transient private lazy val attrsArray = attrs.toArray
+ // Attributes with a null name (e.g. produced from a StructField built
with a null name via
Review Comment:
Please check: AttributeReference.hashCode calls name.hashCode() and could
also NPE if a null-named attribute were used in a hash-based collection. If
this is a real issue as well, please address it separetely.
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