gengliangwang commented on a change in pull request #32839:
URL: https://github.com/apache/spark/pull/32839#discussion_r648117237
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
##########
@@ -385,9 +385,15 @@ object DateTimeUtils {
* microseconds where microsecond 0 is 1970-01-01 00:00:00Z.
*/
def instantToMicros(instant: Instant): Long = {
- val us = Math.multiplyExact(instant.getEpochSecond, MICROS_PER_SECOND)
- val result = Math.addExact(us, NANOSECONDS.toMicros(instant.getNano))
- result
+ if (instant.getEpochSecond < 0) {
+ val us = Math.multiplyExact(instant.getEpochSecond + 1,
MICROS_PER_SECOND)
+ val result = Math.addExact(us, NANOSECONDS.toMicros(instant.getNano -
NANOS_PER_SECOND))
Review comment:
```suggestion
val result = Math.addExact(us, NANOSECONDS.toMicros(instant.getNano) -
MICROS_PER_SECOND)
```
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