1 files changed, 6 insertions, 0 deletions
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala
index 72b323587c..ecd09b7083 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala
@@ -106,6 +106,8 @@ private[this] object SharedFactory {
  * Extracts json object from a json string based on json path specified, and returns json string
  * of the extracted json object. It will return null if the input json string is invalid.
  */
+@ExpressionDescription(
+  usage = "_FUNC_(json_txt, path) - Extract a json object from path")
 case class GetJsonObject(json: Expression, path: Expression)
   extends BinaryExpression with ExpectsInputTypes with CodegenFallback {
 
@@ -319,6 +321,10 @@ case class GetJsonObject(json: Expression, path: Expression)
   }
 }
 
+// scalastyle:off line.size.limit
+@ExpressionDescription(
+  usage = "_FUNC_(jsonStr, p1, p2, ..., pn) - like get_json_object, but it takes multiple names and return a tuple. All the input parameters and output column types are string.")
+// scalastyle:on line.size.limit
 case class JsonTuple(children: Seq[Expression])
   extends Generator with CodegenFallback {