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_r339563792
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
##########
@@ -119,4 +121,32 @@ object IntervalUtils {
case _: IllegalArgumentException => null
}
}
+
+ /**
+ * Gets interval duration
+ *
+ * @param cal - the interval to get duration
+ * @param targetUnit - time units of the result
+ * @param daysPerMonth - the number of days per one month
+ * @return duration in the specified time units
+ */
+ def getDuration(
+ cal: CalendarInterval,
+ targetUnit: TimeUnit,
+ daysPerMonth: Int = 31): Long = {
Review comment:
I suggested the default as that is the only value used now. I think callers
that specify otherwise can explain why (later)
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