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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