Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/18498#discussion_r126283837
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -3078,9 +3078,8 @@ object functions {
* string.
*
* @param e a string column containing JSON data.
- * @param schema the schema to use when parsing the json string as a
json string. In Spark 2.1,
- * the user-provided schema has to be in JSON format.
Since Spark 2.2, the DDL
- * format is also supported for the schema.
+ * @param schema the schema to use when parsing the json string as a
json string
+ * or a DDL-formatted string.
--- End diff --
Sounds nicer
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