text: 
  
  alter table PERSON_INFO add column DISPLAY_NAME VARCHAR(50);
  alter table PERSON_INFO add column TYPE VARCHAR(50);
  alter table PERSON_INFO add column STATUS VARCHAR(50);
  
  COMMENT ON COLUMN PERSON_INFO.DISPLAY_NAME IS '显示名';
  COMMENT ON COLUMN PERSON_INFO.TYPE IS '类型';
  COMMENT ON COLUMN PERSON_INFO.STATUS IS '状态';
  
  