text: -- @testpoint: opengauss关键字savepoint非保留)，作为索引名，部分测试点合理报错
  
  --前置条件，创建一个表
  drop table if exists explain_test;
  create table explain_test(id int,name varchar(10));
  
  --关键字不带引号-成功
  drop index if exists savepoint;
  create index savepoint on explain_test(id);
  drop index savepoint;
  
  --关键字带双引号-成功
  drop index if exists "savepoint";
  create index "savepoint" on explain_test(id);
  drop index "savepoint";
  
  --关键字带单引号-合理报错
  drop index if exists 'savepoint';
  create index 'savepoint' on explain_test(id);
  
  --关键字带反引号-合理报错
  drop index if exists `savepoint`;
  create index `savepoint` on explain_test(id);
  drop table if exists explain_test;