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