Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/23184#discussion_r238056921
--- Diff: R/pkg/R/functions.R ---
@@ -202,8 +202,9 @@ NULL
#' \itemize{
#' \item \code{from_json}: a structType object to use as the
schema to use
#' when parsing the JSON string. Since Spark 2.3, the
DDL-formatted string is
-#' also supported for the schema.
-#' \item \code{from_csv}: a DDL-formatted string
+#' also supported for the schema. Since Spark 3.0,
\code{schema_of_json} or
+#' a string literal can also be accepted.
--- End diff --
Basically yea same. The only difference is it allows takes a string literal
(not only string). Let me try to clarify it.
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