Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/6981#discussion_r34867418
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
---
@@ -378,4 +395,183 @@ object DateTimeUtils {
c.set(segments(0), segments(1) - 1, segments(2), 0, 0, 0)
Some((c.getTimeInMillis / 1000 / 3600 / 24).toInt)
}
+
+ /**
+ * Returns the hour value of a given timestamp value. The timestamp is
expressed in microseconds.
+ */
+ def getHours(timestamp: Long): Int = {
+ val localTs = (timestamp / 1000) + defaultTimeZone.getOffset(timestamp
/ 1000)
+ ((localTs / 1000 / 3600) % 24).toInt
+ }
+
+ /**
+ * Returns the minute value of a given timestamp value. The timestamp is
expressed in
+ * microseconds.
+ */
+ def getMinutes(timestamp: Long): Int = {
+ val localTs = (timestamp / 1000) + defaultTimeZone.getOffset(timestamp
/ 1000)
+ ((localTs / 1000 / 60) % 60).toInt
+ }
+
+ /**
+ * Returns the second value of a given timestamp value. The timestamp is
expressed in
+ * microseconds.
+ */
+ def getSeconds(timestamp: Long): Int = {
+ val localTs = (timestamp / 1000) + defaultTimeZone.getOffset(timestamp
/ 1000)
--- End diff --
I think the offset of timezone should be cut off by minute.
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