cloud-fan commented on a change in pull request #28886:
URL: https://github.com/apache/spark/pull/28886#discussion_r443997431



##########
File path: 
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
##########
@@ -751,7 +751,8 @@ object IntervalUtils {
       secs: Decimal): CalendarInterval = {
     val totalMonths = Math.addExact(months, Math.multiplyExact(years, 
MONTHS_PER_YEAR))
     val totalDays = Math.addExact(days, Math.multiplyExact(weeks, 
DAYS_PER_WEEK))
-    var micros = (secs * Decimal(MICROS_PER_SECOND)).toLong
+    assert(secs.scale == 6, "Seconds fractional must have 6 digits for 
microseconds")

Review comment:
       shall we check the precision as well?




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