tianshizz commented on a change in pull request #28445:
URL: https://github.com/apache/spark/pull/28445#discussion_r419446402
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
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@@ -81,6 +81,12 @@ object DateTimeUtils {
}
}
+ private val threadLocalUtcGregorianCalendar = new
ThreadLocal[GregorianCalendar] {
+ override def initialValue(): GregorianCalendar = {
+ new GregorianCalendar(TimeZoneUTC)
Review comment:
Based on the implementation
(https://github.com/JetBrains/jdk8u_jdk/blob/master/src/share/classes/java/util/GregorianCalendar.java#L819),
I don't think timezone would make a difference here.
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