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