"distributed by random buckets auto" results in "Select statement must not embed another statement"

[comodohusky]

When using fe http api to get _query_plan, I found that the "distributed by random buckets auto" would respond "Select statement must not embed another statement".

Table Structure

create table `test6`
(
    `id`    int null,
    `time`  date null,
    `name`  varchar(10) null,
    `count` int sum null
) engine=olap
aggregate key(`id`, `time`, `name`)
distributed by random buckets auto
properties (
"replication_allocation" = "tag.location.default: 1"
);

HTTP Request

POST http://FE_IP:HTTP_PORT/api/test/test6/_query_plan
{"sql": "select * from test.test6;"}

Response Code

{
  "msg": "success",
  "code": 0,
  "data": {
    "exception": "Select statement must not embed another statement",
    "status": 400
  },
  "count": 0
}