cloud-fan commented on code in PR #37466:
URL: https://github.com/apache/spark/pull/37466#discussion_r944334882
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala:
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@@ -1283,6 +1283,20 @@ object IntervalUtils {
intToYearMonthInterval(vInt, startField, endField)
}
+ def decimalToYearMonthInterval(
+ d: Decimal, p: Int, s: Int, startField: Byte, endField: Byte): Int = {
+ try {
+ val months = if (endField == YEAR) d.toBigDecimal * MONTHS_PER_YEAR else
d.toBigDecimal
+ months.setScale(0, BigDecimal.RoundingMode.HALF_UP).toIntExact
Review Comment:
do we have a sql reference doc for cast? we should mention the rounding
behavior.
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