无法创建衍生列？

Question

-- creating a virtual column
  ALTER TABLE membership_registration
  ADD COLUMN buyer_name VARCHAR(150) GENERATED ALWAYS 
  AS (concat(buyer_last_name,', ',buyer_first_name)) 
  COMMENT 'virtual column of buyer name' AFTER buyer_name_old;

以上查询在本地主机上运行良好，但在生产环境和我的sql工作台上未执行相同的查询。