text: --  @testpoint:opengauss关键字write(非保留)，作为模式名
  
  
  --关键字不带引号-成功
  drop schema if exists write;
  create schema write;
  drop schema write;
  
  --关键字带双引号-成功
  drop schema if exists "write";
  create schema "write";
  drop schema "write";
  
  --关键字带单引号-合理报错
  drop schema if exists 'write';
  create schema 'write';
  
  --关键字带反引号-合理报错
  drop schema if exists `write`;
  create schema `write`;
  