text: --  @testpoint:opengauss关键字row_count(非保留)，作为数据库名
  
  --关键字不带引号-成功
  drop database if exists row_count;
  create database row_count;
  drop database row_count;
  
  --关键字带双引号-成功
  drop database if exists "row_count";
  create database "row_count";
  drop database "row_count";
  
  --关键字带单引号-合理报错
  drop database if exists 'row_count';
  create database 'row_count';
  
  --关键字带反引号-合理报错
  drop database if exists `row_count`;
  create database `row_count`;
  
  