Github user dilipbiswal commented on a diff in the pull request:
https://github.com/apache/spark/pull/15332#discussion_r81649623
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
---
@@ -206,6 +206,22 @@ object DateTimeUtils {
(day.toInt, micros * 1000L)
}
+ /*
+ * Converts the timestamp to milliseconds since epoc. In spark timestamp
values have microseconds
+ * precision, so this conversion is lossy.
+ */
+ def toMillis(us: SQLTimestamp): Long = {
+ val julian_us = us + JULIAN_DAY_OF_EPOCH * MICROS_PER_DAY
--- End diff --
@davies On your second comment , let me please get back to you.
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