MaxGekk commented on a change in pull request #25410: [SPARK-28690][SQL] Add
`date_part` function for timestamps/dates
URL: https://github.com/apache/spark/pull/25410#discussion_r314599378
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -1409,48 +1409,7 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
* Create a Extract expression.
*/
override def visitExtract(ctx: ExtractContext): Expression = withOrigin(ctx)
{
- ctx.field.getText.toUpperCase(Locale.ROOT) match {
- case "MILLENNIUM" | "MILLENNIA" | "MIL" | "MILS" =>
- Millennium(expression(ctx.source))
- case "CENTURY" | "CENTURIES" | "C" | "CENT" =>
- Century(expression(ctx.source))
- case "DECADE" | "DECADES" | "DEC" | "DECS" =>
- Decade(expression(ctx.source))
- case "YEAR" | "Y" | "YEARS" | "YR" | "YRS" =>
- Year(expression(ctx.source))
- case "ISOYEAR" =>
- IsoYear(expression(ctx.source))
- case "QUARTER" | "QTR" =>
- Quarter(expression(ctx.source))
- case "MONTH" | "MON" | "MONS" | "MONTHS" =>
- Month(expression(ctx.source))
- case "WEEK" | "W" | "WEEKS" =>
- WeekOfYear(expression(ctx.source))
- case "DAY" | "D" | "DAYS" =>
- DayOfMonth(expression(ctx.source))
- case "DAYOFWEEK" =>
- DayOfWeek(expression(ctx.source))
- case "DOW" =>
- Subtract(DayOfWeek(expression(ctx.source)), Literal(1))
- case "ISODOW" =>
- Add(WeekDay(expression(ctx.source)), Literal(1))
- case "DOY" =>
- DayOfYear(expression(ctx.source))
- case "HOUR" | "H" | "HOURS" | "HR" | "HRS" =>
- Hour(expression(ctx.source))
- case "MINUTE" | "M" | "MIN" | "MINS" | "MINUTES" =>
- Minute(expression(ctx.source))
- case "SECOND" | "S" | "SEC" | "SECONDS" | "SECS" =>
- Second(expression(ctx.source))
- case "MILLISECONDS" | "MSEC" | "MSECS" | "MILLISECON" | "MSECONDS" |
"MS" =>
- Milliseconds(expression(ctx.source))
- case "MICROSECONDS" | "USEC" | "USECS" | "USECONDS" | "MICROSECON" |
"US" =>
- Microseconds(expression(ctx.source))
- case "EPOCH" =>
- Epoch(expression(ctx.source))
- case other =>
- throw new ParseException(s"Literals of type '$other' are currently not
supported.", ctx)
Review comment:
This will work for `extract` but how about the `date_part()` function
itself? The same code should present for the function, shouldn't it?
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