cloud-fan commented on a change in pull request #31961:
URL: https://github.com/apache/spark/pull/31961#discussion_r602033028
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/intervalExpressions.scala
##########
@@ -341,3 +341,53 @@ case class MultiplyDTInterval(
override def toString: String = s"($left * $right)"
}
+
+// Divide an year-month interval by a numeric
+case class DivideYMInterval(
+ interval: Expression,
+ num: Expression)
+ extends BinaryExpression with ImplicitCastInputTypes with NullIntolerant
with Serializable {
+ override def left: Expression = interval
+ override def right: Expression = num
+
+ override def inputTypes: Seq[AbstractDataType] = Seq(YearMonthIntervalType,
NumericType)
+ override def dataType: DataType = YearMonthIntervalType
+
+ @transient
+ private lazy val evalFunc: (Int, Any) => Any = right.dataType match {
+ case LongType => (months: Int, num) =>
+ LongMath.divide(months, num.asInstanceOf[Long],
RoundingMode.HALF_UP).toInt
Review comment:
It's better to put it as a code comment. We can fix it in the next PR.
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