update_index_status 等schema刷新占位

src/share/ob_rpc_struct.h

@@ -229,7 +229,8 @@ public:
       based_schema_object_infos_(),
       parallelism_(0),
       task_id_(0),
-      consumer_group_id_(0)
+      consumer_group_id_(0),
+      is_parallel_(false)
    { }
   virtual ~ObDDLArg() = default;
   bool is_need_check_based_schema_objects() const
@@ -257,6 +258,7 @@ public:
     parallelism_ = 0;
     task_id_ = 0;
     consumer_group_id_ = 0;
+    is_parallel_ = false;
   }
   DECLARE_TO_STRING;
 
@@ -268,6 +270,8 @@ public:
   int64_t parallelism_;
   int64_t task_id_;
   int64_t consumer_group_id_;
+  //some parallel ddl is effect before 4220, this member is valid after 4220
+  bool is_parallel_;
 };
 
 struct ObAlterResourceUnitArg : public ObDDLArg