cloud-fan commented on a change in pull request #28248:
URL: https://github.com/apache/spark/pull/28248#discussion_r411085051
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
##########
@@ -2130,38 +2129,38 @@ object DatePartLike {
}
}
+// scalastyle:off line.size.limit
@ExpressionDescription(
usage = "_FUNC_(field, source) - Extracts a part of the date/timestamp or
interval source.",
arguments = """
Arguments:
* field - selects which part of the source should be extracted.
- Supported string values of `field` for dates and timestamps are:
- ["MILLENNIUM", ("MILLENNIA", "MIL", "MILS"),
- "CENTURY", ("CENTURIES", "C", "CENT"),
- "DECADE", ("DECADES", "DEC", "DECS"),
- "YEAR", ("Y", "YEARS", "YR", "YRS"),
- "ISOYEAR",
- "QUARTER", ("QTR"),
- "MONTH", ("MON", "MONS", "MONTHS"),
- "WEEK", ("W", "WEEKS"),
- "DAY", ("D", "DAYS"),
- "DAYOFWEEK",
- "DOW",
- "ISODOW",
- "DOY",
- "HOUR", ("H", "HOURS", "HR", "HRS"),
- "MINUTE", ("M", "MIN", "MINS", "MINUTES"),
- "SECOND", ("S", "SEC", "SECONDS", "SECS"),
- "MILLISECONDS", ("MSEC", "MSECS", "MILLISECON", "MSECONDS",
"MS"),
- "MICROSECONDS", ("USEC", "USECS", "USECONDS", "MICROSECON",
"US"),
- "EPOCH"]
- Supported string values of `field` for intervals are:
- ["YEAR", ("Y", "YEARS", "YR", "YRS"),
- "MONTH", ("MON", "MONS", "MONTHS"),
- "DAY", ("D", "DAYS"),
- "HOUR", ("H", "HOURS", "HR", "HRS"),
- "MINUTE", ("M", "MIN", "MINS", "MINUTES"),
- "SECOND", ("S", "SEC", "SECONDS", "SECS")]
+ - Supported string values of `field` for dates and timestamps are:
+ - "MILLENNIUM", ("MILLENNIA", "MIL", "MILS") - the conventional
numbering of millennia
+ - "CENTURY", ("CENTURIES", "C", "CENT") - the conventional
numbering of centuries
+ - "DECADE", ("DECADES", "DEC", "DECS") - the year field divided
by 1
+ - "YEAR", ("Y", "YEARS", "YR", "YRS") - the year field
+ - "ISOYEAR" - the ISO 8601 week-numbering year that the datetime
falls in
+ - "QUARTER", ("QTR") - the quarter (1 - 4) of the year that the
datetime falls in
+ - "MONTH", ("MON", "MONS", "MONTHS") - the month field
Review comment:
`the month field (1 - 12)`
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