yaooqinn commented on a change in pull request #26347: [SPARK-29688][SQL]
Support average for interval type values
URL: https://github.com/apache/spark/pull/26347#discussion_r342422996
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
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@@ -97,6 +97,16 @@ object IntervalUtils {
Decimal(result, 18, 6)
}
+ def divide(interval: CalendarInterval, divisor: Decimal): CalendarInterval =
{
+ if (divisor == Decimal.ZERO || divisor == null) return null
+ val months = Decimal(interval.months) / divisor
+ val days = months.remainder(Decimal.ONE) * Decimal(DAYS_PER_MONTH) +
+ Decimal(interval.days) / divisor
+ val milliseconds = days.remainder(Decimal.ONE) *
Decimal(DateTimeUtils.MICROS_PER_DAY) +
+ Decimal(interval.microseconds) / divisor
+ new CalendarInterval(months.toInt, days.toInt, milliseconds.toLong)
Review comment:
microseconds. thanks.
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