yaooqinn commented on a change in pull request #26412: [SPARK-29774][SQL] Date
and Timestamp type +/- null should be null as Postgres
URL: https://github.com/apache/spark/pull/26412#discussion_r353588331
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
##########
@@ -185,16 +186,17 @@ case class DateAdd(startDate: Expression, days:
Expression)
""",
since = "1.5.0")
case class DateSub(startDate: Expression, days: Expression)
- extends BinaryExpression with ImplicitCastInputTypes {
+ extends BinaryExpression with ExpectsInputTypes {
override def left: Expression = startDate
override def right: Expression = days
- override def inputTypes: Seq[AbstractDataType] = Seq(DateType, IntegerType)
+ override def inputTypes: Seq[AbstractDataType] =
+ Seq(DateType, TypeCollection(IntegerType, ShortType, ByteType))
override def dataType: DataType = DateType
override def nullSafeEval(start: Any, d: Any): Any = {
- start.asInstanceOf[Int] - d.asInstanceOf[Int]
+ start.asInstanceOf[Int] - d.asInstanceOf[Number].intValue()
Review comment:
done
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