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