doris 2.0.5 怎么修改已有数据表的storage_policy？

doris 2.0.5 怎么修改已有数据表的storage_policy？
修改表的storage_policy报错
errCode = 2, detailMessage = Do not support alter table's storage policy , this table [xxxx] has storage policy 3_Day_cool, the table need to be empty.