 index 0000000..eaded0f
 --- /dev/null
 +++ b/src/backend/nodes/outfuncs_json.c
-@@ -0,0 +1,1035 @@
+@@ -0,0 +1,1036 @@
 +/*-------------------------------------------------------------------------
 + *
 + * outfuncs_json.c

+{
+	WRITE_NODE_TYPE("A_CONST");
+
+	appendStringInfoString(str, "\"val\": ");
+	_outValue(str, &(node->val));
+	appendStringInfoString(str, ", ");

+static void
+_outToken(StringInfo str, const char *s)
+{
+	if (s == NULL)
+	{
+		appendStringInfoString(str, "null");
+		return;
