text: --  @testpoint:opengauss关键字committed(非保留)，作为表空间名
  
  
  --关键字不带引号，创建成功
  drop tablespace if exists committed;
  CREATE TABLESPACE committed RELATIVE LOCATION 'hdfs_tablespace/hdfs_tablespace_1';
   
  --关键字带双引号，创建成功
  drop tablespace if exists "committed";
  CREATE TABLESPACE "committed" RELATIVE LOCATION 'hdfs_tablespace/hdfs_tablespace_1'; 
  drop tablespace "committed";
  
  --关键字带单引号，合理报错
  drop tablespace if exists 'committed';
  CREATE TABLESPACE 'committed' RELATIVE LOCATION 'hdfs_tablespace/hdfs_tablespace_1'; 
  
  --关键字带反引号，合理报错
  drop tablespace if exists `committed`;
  CREATE TABLESPACE `committed` RELATIVE LOCATION 'hdfs_tablespace/hdfs_tablespace_1';
  
  