chongguang commented on a change in pull request #30807:
URL: https://github.com/apache/spark/pull/30807#discussion_r551147173
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
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@@ -1170,52 +1175,73 @@ case class LastDay(startDate: Expression)
group = "datetime_funcs",
since = "1.5.0")
// scalastyle:on line.size.limit
-case class NextDay(startDate: Expression, dayOfWeek: Expression)
+case class NextDay(
+ startDate: Expression,
+ dayOfWeek: Expression,
+ failOnError: Boolean = SQLConf.get.ansiEnabled)
extends BinaryExpression with ImplicitCastInputTypes with NullIntolerant {
override def left: Expression = startDate
override def right: Expression = dayOfWeek
+ def this(left: Expression, right: Expression) = this(left, right,
SQLConf.get.ansiEnabled)
+
override def inputTypes: Seq[AbstractDataType] = Seq(DateType, StringType)
override def dataType: DataType = DateType
override def nullable: Boolean = true
override def nullSafeEval(start: Any, dayOfW: Any): Any = {
- val dow =
DateTimeUtils.getDayOfWeekFromString(dayOfW.asInstanceOf[UTF8String])
- if (dow == -1) {
- null
- } else {
+ try {
+ val dow =
DateTimeUtils.getDayOfWeekFromString(dayOfW.asInstanceOf[UTF8String])
val sd = start.asInstanceOf[Int]
DateTimeUtils.getNextDateForDayOfWeek(sd, dow)
+ } catch {
+ case _: IllegalArgumentException if !failOnError => null
+ }
+ }
+
+ private val dateTimeUtilClass =
DateTimeUtils.getClass.getName.stripSuffix("$")
Review comment:
It is also used outside of `nextDayGenCode`
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