HyukjinKwon commented on a change in pull request #32507:
URL: https://github.com/apache/spark/pull/32507#discussion_r630754321
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ApplyFunctionExpression.scala
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@@ -30,10 +30,11 @@ case class ApplyFunctionExpression(
override def dataType: DataType = function.resultType()
private lazy val reusedRow = new GenericInternalRow(children.size)
+ private lazy val childrenWithIndex = children.zipWithIndex
/** Returns the result of evaluating this expression on a given input Row */
override def eval(input: InternalRow): Any = {
- children.zipWithIndex.foreach {
+ childrenWithIndex.foreach {
Review comment:
I think it's worthwhile trying.
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