如果我在cobar中调用mysql 函数将日期转化为时间戳,也是会报错

cobar 不支持mysql函数吗?
mysql> create table myorder(id int auto_increment primary key,city_id int,place_tm int,name varchar(100));

mysql> insert into myorder (id, city_id, place_tm, name) values (1,10,UNIX_TIMESTAMP('2015-06-08 00:00:00'),'testme1');
ERROR 1003 (HY000): route err: different rule columns should have same value number: {PLACE_TM=[], CITY_ID=[10]}

Start with the provided CREATE TABLE and INSERT statement, focusing on how UNIX_TIMESTAMP('2015-06-08 00:00:00') is handled during routing. Trace the source of ERROR 1003 and determine whether the function should be supported or the limitation documented; done means the behavior is corrected or clearly specified.

Written by the indexing model from the issue text.