ALTER TABLE "public"."wor_service_request" 
  ADD COLUMN "rate_code" varchar(255) COLLATE "pg_catalog"."default" DEFAULT ''::character varying;
   COMMENT ON COLUMN "public"."wor_service_request"."rate_code" IS '用药频次';
   
   -- 插入添加wor_service_request列的迁移记录
INSERT INTO __MigrationsHistory (MigrationId, ProductVersion)
VALUES ('202509041015add_column_wor_service_request', '1.0.0');