[GitHub] [spark] cloud-fan commented on a change in pull request #24107: [SPARK-27174][SQL] Add support for casting integer types to binary

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cloud-fan commented on a change in pull request #24107: [SPARK-27174][SQL] Add support for casting integer types to binary
URL: https://github.com/apache/spark/pull/24107#discussion_r266029430
 
 

 ##########
 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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 @@ -1382,3 +1392,44 @@ case class UpCast(child: Expression, dataType: DataType, walkedTypePath: Seq[Str
   extends UnaryExpression with Unevaluable {
   override lazy val resolved = false
 }
+
+object ToBinary {
+
+  val objectName: String = ToBinary.getClass.getName.stripSuffix("$")
+
+  def cast(l: Long): Array[Byte] = {
 
 Review comment:
   does JDK provide this functionality?

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