MaxGekk commented on code in PR #48598:
URL: https://github.com/apache/spark/pull/48598#discussion_r1812698149
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala:
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@@ -767,6 +777,35 @@ case class InSet(child: Expression, hset: Set[Any])
extends UnaryExpression with
override protected def withNewChildInternal(newChild: Expression): InSet =
copy(child = newChild)
}
+object InSet {
+ class LCaseSet(inputSet: Set[Any]) extends immutable.Set[Any] with
Serializable {
+ private val strSet = inputSet.map { s =>
+ if (s == null) null
+ else
CollationAwareUTF8String.lowerCaseCodePoints(s.asInstanceOf[UTF8String])
+ }
+ override def incl(elem: Any): Set[Any] = inputSet.incl(elem)
Review Comment:
The methods shouldn't be invoked at all. Let me raise an error here.
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