text: --  @testpoint:opengauss关键字catalog_name非保留)，作为序列名
  --关键字不带引号-成功
  drop sequence if exists catalog_name;
  create sequence catalog_name start 100 cache 50;
  
  --清理环境
  drop sequence catalog_name;
  
  --关键字带双引号-成功
  drop sequence if exists "catalog_name";
  create sequence "catalog_name" start 100 cache 50;
  
  --清理环境
  drop sequence "catalog_name";
  
  --关键字带单引号-合理报错
  drop sequence if exists 'catalog_name';
  
  --关键字带反引号-合理报错
  drop sequence if exists `catalog_name`;
  