Github user kiszk commented on a diff in the pull request: https://github.com/apache/spark/pull/19603#discussion_r147589361 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala --- @@ -591,18 +591,40 @@ case class MapObjects private( case _ => inputData.dataType } - val (getLength, getLoopVar) = inputDataType match { + val (getLength, prepareLoop, getLoopVar) = inputDataType match { case ObjectType(cls) if classOf[Seq[_]].isAssignableFrom(cls) => - s"${genInputData.value}.size()" -> s"${genInputData.value}.apply($loopIndex)" + val it = ctx.freshName("it") + ( + s"${genInputData.value}.size()", --- End diff -- I see. got it.
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