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_r361928895
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
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@@ -413,6 +415,49 @@ object IntervalUtils {
new CalendarInterval(truncatedMonths, truncatedDays, micros.round)
}
+ /**
+ * Makes an interval from months, days and micros with the fractional part by
+ * adding the month fraction to days and the days fraction to micros.
+ */
+ private def safeFromDoubles(
+ monthsWithFraction: Double,
+ daysWithFraction: Double,
+ microsWithFraction: Double): CalendarInterval = {
+ val monthInLong = monthsWithFraction.toLong
+ val truncatedMonths = if (monthInLong > Int.MaxValue) {
Review comment:
how about always fail interval multiple when overflow? ANSI off doesn't mean
everything is against ANSI standard, it means to keep the existing behavior
even if it violates ANSI standard.
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