Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/9862#discussion_r45509745
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -1255,6 +1255,30 @@ class DataFrame private[sql](
}
/**
+ * Returns a new [[DataFrame]] with columns dropped.
+ * This is a no-op if schema doesn't contain column name(s).
+ * @group dfops
+ * @since 1.6.0
+ */
+ def drop(colNames: String*): DataFrame = {
--- End diff --
This would need a varargs annotation and I don't think that we should
duplicate the column resolution logic. Otherwise it might fall out of sync.
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