add common table expression in MySQL (#314)

src/sql/resolver/ob_resolver_define.h

@@ -287,6 +287,8 @@ struct ObResolverParams {
         new_gen_wid_(1),
         is_multi_table_insert_(false),
         is_resolve_table_function_expr_(false),
+        has_cte_param_list_(false),
+        has_recursive_word(false),        
         is_column_ref_(true)
   {}
   bool is_force_trace_log()
@@ -340,6 +342,8 @@ private:
 public:
   bool is_multi_table_insert_;           // used to mark is multi table insert
   bool is_resolve_table_function_expr_;  // used to mark resolve table function expr.
+  bool has_cte_param_list_;
+  bool has_recursive_word;
   bool is_column_ref_;                   // used to mark normal column ref
 };
 }  // end namespace sql