Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/22442#discussion_r219297029
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -3611,6 +3611,20 @@ object functions {
*/
def schema_of_json(e: Column): Column = withExpr(new
SchemaOfJson(e.expr))
+ /**
+ * Parses a column containing a JSON string and infers its schema using
options.
+ *
+ * @param e a string column containing JSON data.
+ * @param options JSON datasource options that control JSON parsing and
type inference.
--- End diff --
do we fail if users currently specify an option in dataframereader that
doesn't apply? if we don't i wouldn't fail here.
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