text: --  @testpoint:opengauss关键字transactions_committed(非保留)，作为外部数据源名
  
  --关键字不带引号-成功
  drop data source if exists transactions_committed;
  create data source transactions_committed;
  drop data source transactions_committed;
  
  --关键字带双引号-成功
  drop data source if exists "transactions_committed";
  create data source "transactions_committed";
  drop data source "transactions_committed";
  
  --关键字带单引号-合理报错
  drop data source if exists 'transactions_committed';
  create data source 'transactions_committed';
  
  --关键字带反引号-合理报错
  drop data source if exists `transactions_committed`;
  create data source `transactions_committed`;
  