Github user kiszk commented on a diff in the pull request: https://github.com/apache/spark/pull/19811#discussion_r157409537 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/generators.scala --- @@ -217,7 +217,7 @@ case class Stack(children: Seq[Expression]) extends Generator { ctx.addMutableState( s"$wrapperClass<InternalRow>", ev.value, - s"${ev.value} = $wrapperClass$$.MODULE$$.make($rowData);") --- End diff -- I will do it in another PR.
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