beliefer commented on a change in pull request #33360:
URL: https://github.com/apache/spark/pull/33360#discussion_r670923505
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
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@@ -746,6 +746,26 @@ object DateTimeUtils {
instantToMicros(resultTimestamp.toInstant)
}
+ /**
+ * Adds a full interval (months, days, microseconds) to a timestamp without
time zone
+ * represented as a local time in microsecond precision, which is
independent of time zone.
+ * @return A timestamp without time zone value, expressed in range
+ * [0001-01-01T00:00:00.000000, 9999-12-31T23:59:59.999999].
+ */
+ def timestampNTZAddInterval(
+ start: Long,
+ months: Int,
+ days: Int,
+ microseconds: Long,
+ zoneId: ZoneId): Long = {
+ val localDateTime = microsToLocalDateTime(start)
+ .atZone(zoneId)
+ .plusMonths(months)
+ .plusDays(days)
+ .plus(microseconds, ChronoUnit.MICROS)
+ localDateTimeToMicros(localDateTime.toLocalDateTime)
Review comment:
It doesn't matter. The `zoneId` is session time zone.
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