cloud-fan commented on a change in pull request #26995: [SPARK-30341][SQL]
Overflow check for interval arithmetic operations
URL: https://github.com/apache/spark/pull/26995#discussion_r361103770
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala
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@@ -218,6 +252,11 @@ object BinaryArithmetic {
""")
case class Add(left: Expression, right: Expression) extends BinaryArithmetic {
+ override def nullable: Boolean = dataType match {
+ case CalendarIntervalType if !checkOverflow => true
Review comment:
cast from string and cast from int are different and don't need to be
consistent. But interval +- and interval */ should be consistent.
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