MaxGekk commented on a change in pull request #25796:
[SPARK-28471][SQL][DOC][FOLLOWUP] Fix year patterns in the comments of
date-time expressions
URL: https://github.com/apache/spark/pull/25796#discussion_r324455150
##########
File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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@@ -2634,8 +2634,8 @@ object functions {
* See [[java.time.format.DateTimeFormatter]] for valid date and time format
patterns
*
* @param dateExpr A date, timestamp or string. If a string, the data must
be in a format that
- * can be cast to a timestamp, such as `yyyy-MM-dd` or
`yyyy-MM-dd HH:mm:ss.SSSS`
- * @param format A pattern `dd.MM.yyyy` would return a string like
`18.03.1993`
+ * can be cast to a timestamp, such as `uuuu-MM-dd` or
`uuuu-MM-dd HH:mm:ss.SSSS`
Review comment:
It uses `TimestampFormatter` which can output negative years using the
`uuuu` pattern.
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