text: -- @testpoint: 修改行级访问控制
  --step1: 创建用户；expect:成功
  DROP USER IF EXISTS u01_security_RowLevel_0021;
  DROP USER IF EXISTS u02_security_RowLevel_0021;
  DROP USER IF EXISTS u03_security_RowLevel_0021;
  CREATE USER u01_security_RowLevel_0021 PASSWORD 'Test@123';
  CREATE USER u02_security_RowLevel_0021 PASSWORD 'Test@123';
  CREATE USER u03_security_RowLevel_0021 PASSWORD 'Test@123';
  --step2: 创建本地临时表，并给用户赋予访问权限；expect:成功
  DROP TABLE IF EXISTS t_security_RowLwvel_0021;
  CREATE TABLE t_security_RowLwvel_0021(id int, role varchar(100), data varchar(100));
  GRANT SELECT ON t_security_RowLwvel_0021 TO u01_security_RowLevel_0021, u03_security_RowLevel_0021, u02_security_RowLevel_0021;
  --step3: 创建行级访问策略；expect:成功
  ALTER TABLE t_security_RowLwvel_0021 ENABLE ROW LEVEL SECURITY;
  CREATE ROW LEVEL SECURITY POLICY rls_security_RowLwvel_0021 ON t_security_RowLwvel_0021 to u01_security_RowLevel_0021 USING(role = CURRENT_USER);
  --step4: 修改行级访问策略；expect:成功
  ALTER ROW LEVEL SECURITY POLICY rls_security_RowLwvel_0021 ON t_security_RowLwvel_0021 TO u01_security_RowLevel_0021, u03_security_RowLevel_0021;
  ALTER ROW LEVEL SECURITY POLICY rls_security_RowLwvel_0021 ON t_security_RowLwvel_0021 RENAME TO rls_new_security_RowLwvel_0021;
  ALTER ROW LEVEL SECURITY POLICY rls_new_security_RowLwvel_0021 ON t_security_RowLwvel_0021 USING (id > 2 AND role = current_user);
  --step4: 清理环境；expect:成功
  DROP TABLE IF EXISTS t_security_RowLwvel_0021 CASCADE;
  DROP USER u01_security_RowLevel_0021 CASCADE;
  DROP USER u02_security_RowLevel_0021 CASCADE;
  DROP USER u03_security_RowLevel_0021 CASCADE;