Github user chenghao-intel commented on a diff in the pull request: https://github.com/apache/spark/pull/7208#discussion_r34320016 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala --- @@ -1596,6 +1596,22 @@ object functions { def strlen(columnName: String): Column = strlen(Column(columnName)) /** + * Returns string, with the first letter of each word in uppercase, + * all other letters in lowercase. Words are delimited by whitespace. + * @group misc_funcs --- End diff -- `string_funcs` ?
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