text: 
  -- 删除sys_file_entity表的file_md5唯一索引
  ALTER TABLE ${_prefix}sys_file_entity 
  DROP CONSTRAINT ${_prefix}sys_file_entity_file_md5_key;
    
  -- 增加文件信息字段（可存储图片大小）
  ALTER TABLE ${_prefix}sys_file_entity 
  ADD COLUMN file_meta varchar(255) NULL;
  COMMENT ON COLUMN ${_prefix}sys_file_entity.file_meta IS '文件信息(JSON格式)';
    
  -- 集群的实例名字
  ALTER TABLE ${_prefix}sys_job 
  ADD COLUMN instance_name varchar(255) NOT NULL DEFAULT 'JeeSiteScheduler';
  COMMENT ON COLUMN ${_prefix}sys_job.instance_name IS '集群的实例名字';
  
  -- 内部消息菜单
  INSERT INTO ${_prefix}sys_menu(menu_code, parent_code, parent_codes, tree_sort, tree_sorts, tree_leaf, tree_level, tree_names, menu_name, menu_type, menu_href, menu_target, menu_icon, menu_color, permission, weight, is_show, sys_code, module_codes, status, create_by, create_date, update_by, update_date, remarks, extend_s1, extend_s2, extend_s3, extend_s4, extend_s5, extend_s6, extend_s7, extend_s8, extend_i1, extend_i2, extend_i3, extend_i4, extend_f1, extend_f2, extend_f3, extend_f4, extend_d1, extend_d2, extend_d3, extend_d4)
  VALUES ('1105443204287991808', '0', '0,', 9030, '0000009030,', '1', 0, '站内消息', '站内消息', '1', '/msg/msgInner/list', '', 'icon-speech', '', 'msg:msgInner', 40, '1', 'default', 'core', '0', 'system', now(), 'system', now(), '', '', '', '', '', '', '', '', '', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
  
  -- 内部消息新增字典数据
  INSERT INTO ${_prefix}sys_dict_type(id, dict_name, dict_type, is_sys, status, create_by, create_date, update_by, update_date, remarks)
  VALUES ('1105440848414543872', '消息状态', 'msg_inner_msg_status', '0', '0', 'system', now(), 'system', now(), '');
  INSERT INTO ${_prefix}sys_dict_data(dict_code, parent_code, parent_codes, tree_sort, tree_sorts, tree_leaf, tree_level, tree_names, dict_label, dict_value, dict_type, is_sys, description, css_style, css_class, status, create_by, create_date, update_by, update_date, remarks, corp_code, corp_name, extend_s1, extend_s2, extend_s3, extend_s4, extend_s5, extend_s6, extend_s7, extend_s8, extend_i1, extend_i2, extend_i3, extend_i4, extend_f1, extend_f2, extend_f3, extend_f4, extend_d1, extend_d2, extend_d3, extend_d4)
  VALUES ('1106135527342673920', '0', '0,', 20, '0000000020,', '1', 0, '全部', '全部', '0', 'msg_inner_receiver_type', '1', '', '', '', '0', 'system', now(), 'system', now(), '', '0', 'JeeSite', '', '', '', '', '', '', '', '', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
  
  -- 取消内部消息部分字段必填选项
  ALTER TABLE ${_prefix}sys_msg_inner 
    ALTER COLUMN receive_codes DROP NOT NULL,
    ALTER COLUMN receive_names DROP NOT NULL,
    ALTER COLUMN send_user_code DROP NOT NULL,
    ALTER COLUMN send_user_name DROP NOT NULL,
    ALTER COLUMN send_date DROP NOT NULL,
    ALTER COLUMN notify_types DROP NOT NULL;
    