Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/9918#discussion_r45705892
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -689,6 +689,7 @@ object functions extends LegacyFunctions {
* @group normal_funcs
* @since 1.4.0
*/
+ @scala.annotation.varargs
def array(colName: String, colNames: String*): Column = {
--- End diff --
that will conflict with Column*, due to type erasure.
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