Github user kiszk commented on a diff in the pull request: https://github.com/apache/spark/pull/15780#discussion_r90309952 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala --- @@ -405,13 +407,12 @@ case class WrapOption(child: Expression, optType: DataType) * A place holder for the loop variable used in [[MapObjects]]. This should never be constructed * manually, but will instead be passed into the provided lambda function. */ -case class LambdaVariable(value: String, isNull: String, dataType: DataType) extends LeafExpression +case class LambdaVariable(value: String, isNull: String, dataType: DataType, + nullable: Boolean = true) extends LeafExpression --- End diff -- done
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