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