text: --  @testpoint:opengauss关键字release(非保留)，作为数据库名
  
  --关键字不带引号-成功
  drop database if exists release;
  create database release;
  drop database release;
  
  --关键字带双引号-成功
  drop database if exists "release";
  create database "release";
  drop database "release";
  
  --关键字带单引号-合理报错
  drop database if exists 'release';
  create database 'release';
  
  --关键字带反引号-合理报错
  drop database if exists `release`;
  create database `release`;
  
  