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[SPARK-11752][SQL] fix timezone problem for DateTimeUtils.getSeconds #9728

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[SPARK-11752][SQL] fix timezone problem for DateTimeUtils.getSeconds #9728

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14 changes: 8 additions & 6 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -395,33 +395,35 @@ object DateTimeUtils {
/**
* Returns the microseconds since year zero (-17999) from microseconds since epoch.
*/
def absoluteMicroSecond(microsec: SQLTimestamp): SQLTimestamp = {
private def absoluteMicroSecond(microsec: SQLTimestamp): SQLTimestamp = {
microsec + toYearZero * MICROS_PER_DAY
}

private def localTimestamp(microsec: SQLTimestamp): SQLTimestamp = {
absoluteMicroSecond(microsec) + defaultTimeZone.getOffset(microsec / 1000) * 1000L
}

/**
* Returns the hour value of a given timestamp value. The timestamp is expressed in microseconds.
*/
def getHours(microsec: SQLTimestamp): Int = {
val localTs = absoluteMicroSecond(microsec) + defaultTimeZone.getOffset(microsec / 1000) * 1000L
((localTs / MICROS_PER_SECOND / 3600) % 24).toInt
((localTimestamp(microsec) / MICROS_PER_SECOND / 3600) % 24).toInt
}

/**
* Returns the minute value of a given timestamp value. The timestamp is expressed in
* microseconds.
*/
def getMinutes(microsec: SQLTimestamp): Int = {
val localTs = absoluteMicroSecond(microsec) + defaultTimeZone.getOffset(microsec / 1000) * 1000L
((localTs / MICROS_PER_SECOND / 60) % 60).toInt
((localTimestamp(microsec) / MICROS_PER_SECOND / 60) % 60).toInt
}

/**
* Returns the second value of a given timestamp value. The timestamp is expressed in
* microseconds.
*/
def getSeconds(microsec: SQLTimestamp): Int = {
((absoluteMicroSecond(microsec) / MICROS_PER_SECOND) % 60).toInt
((localTimestamp(microsec) / MICROS_PER_SECOND) % 60).toInt
}

private[this] def isLeapYear(year: Int): Boolean = {
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2 changes: 1 addition & 1 deletion sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/util/DateTimeUtilsSuite.scala
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Expand Up @@ -358,7 +358,7 @@ class DateTimeUtilsSuite extends SparkFunSuite {
assert(getSeconds(c.getTimeInMillis * 1000) === 9)
}

test("hours / miniute / seconds") {
test("hours / minutes / seconds") {
Seq(Timestamp.valueOf("2015-06-11 10:12:35.789"),
Timestamp.valueOf("2015-06-11 20:13:40.789"),
Timestamp.valueOf("1900-06-11 12:14:50.789"),
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