Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/7850#discussion_r36031609
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -1776,6 +1776,24 @@ object functions {
}
/**
+ * Returns string, with the first letter of each word in uppercase,
--- End diff --
I think we should update the doc, should not turn other things to lower
case, for example WTO should remain the same.
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