AngersZhuuuu commented on a change in pull request #33993:
URL: https://github.com/apache/spark/pull/33993#discussion_r710753893
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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@@ -3410,32 +3410,59 @@ case class ArrayDistinct(child: Expression)
}
override def nullSafeEval(array: Any): Any = {
- val data = array.asInstanceOf[ArrayData].toArray[AnyRef](elementType)
+ val data = array.asInstanceOf[ArrayData]
doEvaluation(data)
}
@transient private lazy val doEvaluation = if
(TypeUtils.typeWithProperEquals(elementType)) {
- (data: Array[AnyRef]) => new
GenericArrayData(data.distinct.asInstanceOf[Array[Any]])
+ (array: ArrayData) =>
+ val arrayBuffer = new scala.collection.mutable.ArrayBuffer[Any]
+ val hs = new SQLOpenHashSet[Any]()
+ val withNaNCheckFunc = SQLOpenHashSet.withNaNCheckFunc(elementType, hs,
+ (value: Any) =>
+ if (!hs.contains(value)) {
+ if (arrayBuffer.size > ByteArrayMethods.MAX_ROUNDED_ARRAY_LENGTH) {
+
ArrayBinaryLike.throwUnionLengthOverflowException(arrayBuffer.size)
+ }
+ arrayBuffer += value
+ hs.add(value)
+ },
+ (value: Any) => arrayBuffer += value)
Review comment:
Done
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