cloud-fan commented on a change in pull request #29790:
URL: https://github.com/apache/spark/pull/29790#discussion_r492552680
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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@@ -3741,11 +3746,13 @@ case class ArrayIntersect(left: Expression, right:
Expression) extends ArrayBina
case class ArrayExcept(left: Expression, right: Expression) extends
ArrayBinaryLike
with ComplexTypeMergingExpression {
- override def dataType: DataType = {
+ private lazy val internalDataType: DataType = {
dataTypeCheck
Review comment:
shall we just remove this line? input data type check is part of the
resolution procedure, and we don't need to do it again when accessing the data
type.
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