cloud-fan commented on a change in pull request #27618: [SPARK-30869][SQL]
Convert dates to/from timestamps in microseconds precision
URL: https://github.com/apache/spark/pull/27618#discussion_r382415458
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
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@@ -88,14 +86,14 @@ object DateTimeUtils {
* Returns the number of days since epoch from java.sql.Date.
*/
def fromJavaDate(date: Date): SQLDate = {
- millisToDays(date.getTime)
+ microsToDays(Math.multiplyExact(date.getTime, MICROS_PER_MILLIS))
}
/**
* Returns a java.sql.Date from number of days since epoch.
*/
def toJavaDate(daysSinceEpoch: SQLDate): Date = {
- new Date(daysToMillis(daysSinceEpoch))
+ new Date(daysToMicros(daysSinceEpoch) / MICROS_PER_MILLIS)
Review comment:
ditto, `microsToMillis(daysToMicros(daysSinceEpoch))`?
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