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