text: --  @testpoint:opengauss关键字owned(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 owned;
  create data source owned;
  drop data source owned;
  
  --关键字带双引号-成功
  drop data source if exists "owned";
  create data source "owned";
  drop data source "owned";
  
  --关键字带单引号-合理报错
  drop data source if exists 'owned';
  create data source 'owned';
  
  --关键字带反引号-合理报错
  drop data source if exists `owned`;
  create data source `owned`;
  