MaxGekk commented on a change in pull request #27876: [SPARK-31119][SQL] Add
interval value support for extract expression as extract source
URL: https://github.com/apache/spark/pull/27876#discussion_r391441481
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
##########
@@ -2038,32 +2038,60 @@ case class Epoch(child: Expression, timeZoneId:
Option[String] = None)
object DatePart {
- def parseExtractField(
- extractField: String,
- source: Expression,
- errorHandleFunc: => Nothing): Expression =
extractField.toUpperCase(Locale.ROOT) match {
- case "MILLENNIUM" | "MILLENNIA" | "MIL" | "MILS" => Millennium(source)
- case "CENTURY" | "CENTURIES" | "C" | "CENT" => Century(source)
- case "DECADE" | "DECADES" | "DEC" | "DECS" => Decade(source)
- case "YEAR" | "Y" | "YEARS" | "YR" | "YRS" => Year(source)
- case "ISOYEAR" => IsoYear(source)
- case "QUARTER" | "QTR" => Quarter(source)
- case "MONTH" | "MON" | "MONS" | "MONTHS" => Month(source)
- case "WEEK" | "W" | "WEEKS" => WeekOfYear(source)
- case "DAY" | "D" | "DAYS" => DayOfMonth(source)
- case "DAYOFWEEK" => DayOfWeek(source)
- case "DOW" => Subtract(DayOfWeek(source), Literal(1))
- case "ISODOW" => Add(WeekDay(source), Literal(1))
- case "DOY" => DayOfYear(source)
- case "HOUR" | "H" | "HOURS" | "HR" | "HRS" => Hour(source)
- case "MINUTE" | "M" | "MIN" | "MINS" | "MINUTES" => Minute(source)
- case "SECOND" | "S" | "SEC" | "SECONDS" | "SECS" =>
SecondWithFraction(source)
- case "MILLISECONDS" | "MSEC" | "MSECS" | "MILLISECON" | "MSECONDS" | "MS"
=>
- Milliseconds(source)
- case "MICROSECONDS" | "USEC" | "USECS" | "USECONDS" | "MICROSECON" | "US"
=>
- Microseconds(source)
- case "EPOCH" => Epoch(source)
- case _ => errorHandleFunc
+ def parseExtractField(extractField: String, source: Expression): Expression
= {
+ val ef = extractField
+ val dt = source.dataType
+ (dt, ef) match {
+ case (_, null) => Literal(null, DoubleType)
Review comment:
Just in case, does `extract` behave in the same way as for dat/timestamps
here?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
