zero323 commented on a change in pull request #29938:
URL: https://github.com/apache/spark/pull/29938#discussion_r499166143
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File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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@@ -1427,6 +1427,20 @@ object functions {
*/
def acos(columnName: String): Column = acos(Column(columnName))
+ /**
+ * @return inverse hyperbolic cosine of `e`
+ *
+ * @group math_funcs
+ */
Review comment:
We should probably have `@since` annotation here and for the remaining
ones.
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