MogDB=>select id from cs_know order by created_time desc limit 5;
  id   
-------
 316
 318
 319
 317
 315
(5 rows)

MogDB=>WITH RECURSIVE cs as (select id,title,created_time from cs_know where id>100000)
select id from cs order by created_time desc limit 5;

ERROR:  syntax error at or near ""
LINE 2: select id from cs order by created_time desc limit 5;
                                                            ^
MogDB=#