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