srowen commented on a change in pull request #26177: [SPARK-29520][SS] Fix
checks of negative intervals
URL: https://github.com/apache/spark/pull/26177#discussion_r338057164
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
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@@ -88,4 +90,32 @@ object IntervalUtils {
result += MICROS_PER_MONTH * (interval.months % MONTHS_PER_YEAR)
Decimal(result, 18, 6)
}
+
+ /**
+ * Gets interval duration
+ *
+ * @param cal - the interval to get duration
+ * @param daysPerMonth - the number of days per one month
+ * @param targetUnit - time units of the result
+ * @return duration in the specified time units
+ */
+ def getDuration(
+ cal: CalendarInterval,
+ daysPerMonth: Int,
Review comment:
This could also be an optional final argument and default to 31. For now,
when it's always 31, maybe that's simpler.
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