HyukjinKwon commented on a change in pull request #27438:
[MINOR][SQL][DOCS][2.4] Fix the descriptions of `to_timestamp` and
`ParseToTimestamp`
URL: https://github.com/apache/spark/pull/27438#discussion_r373965439
##########
File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
##########
@@ -2949,10 +2949,10 @@ object functions {
def unix_timestamp(s: Column, p: String): Column = withExpr {
UnixTimestamp(s.expr, Literal(p)) }
/**
- * Converts to a timestamp by casting rules to `TimestampType`.
+ * Converts to a timestamp by casting rules to `TimestampType` in the
seconds precision.
*
* @param s 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`
+ * cast to a timestamp, such as `yyyy-MM-dd` or `yyyy-MM-dd
HH:mm:ss`
Review comment:
> Since SimpleDateFormat/FastDateFormat cannot parsing in microseconds
precision
It has been there from the very first place. I think it's not clear if we
should take it as a bug to backport.
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