Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/21505#discussion_r193687346
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
---
@@ -114,20 +114,19 @@ object DateTimeUtils {
}
private val threadLocalComputedCalendarsMap =
- new ThreadLocal[mutable.Map[TimeZone, (Calendar, Long)]] {
- override def initialValue(): mutable.Map[TimeZone, (Calendar, Long)]
= {
- mutable.Map[TimeZone, (Calendar, Long)]()
+ new ThreadLocal[mutable.Map[TimeZone, Calendar]] {
+ override def initialValue(): mutable.Map[TimeZone, Calendar] = {
+ mutable.Map[TimeZone, Calendar]()
}
}
def getCalendar(timeZone: TimeZone): Calendar = {
- val (c, timeInMillis) = threadLocalComputedCalendarsMap.get()
+ val c = threadLocalComputedCalendarsMap.get()
.getOrElseUpdate(timeZone, {
- val c = Calendar.getInstance(timeZone)
- (c, c.getTimeInMillis)
+ Calendar.getInstance(timeZone)
})
c.clear()
- c.setTimeInMillis(timeInMillis)
+ c.setTimeInMillis(System.currentTimeMillis())
--- End diff --
hmm, I think `System.currentTimeMillis()` is UTC-based?
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