Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/15677#discussion_r85635839
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
---
@@ -148,8 +171,15 @@ case class Hour(child: Expression) extends
UnaryExpression with ImplicitCastInpu
}
@ExpressionDescription(
- usage = "_FUNC_(param) - Returns the minute component of the
string/timestamp/interval.",
- extended = "> SELECT _FUNC_('2009-07-30 12:58:59');\n 58")
+ usage = "_FUNC_(timestamp) - Returns the minute component of the
string/timestamp.",
+ extended = """
+ Arguments:
+ timestamp - a timestamp expression.
--- End diff --
Oh, yes. I knew this but I was hesitant to fix `string/timestamp` because
fixing this to `timestamp` sounds a (strictly..) regression in the
documentation (it mean, `string/timestamp` is not inaccurate..); however, I
also could not add `string` in `extended` part as it is inconsistent with the
others.
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