CREATE TABLE `klcxkj` (
  `id` int(11) NULL,
  `name` varchar(20) NULL
) ENGINE=OLAP
UNIQUE KEY(`id`)
COMMENT 'OLAP'
DISTRIBUTED BY HASH(`id`) BUCKETS 1
PROPERTIES (
"replication_allocation" = "tag.location.default: 1",
"in_memory" = "false",
"storage_format" = "V2",
"disable_auto_compaction" = "false"
); 

insert into klcxkj values (1, 'abcde');

select collect_list(name, 2) from klcxkj;
ERROR 1105 (HY000): errCode = 2, detailMessage = No matching function with signature: collect_list(varchar(20), tinyint(4)).

mysql [test]>select collect_list(name, 2) from klcxkj;
+-------------------------+
| collect_list(`name`, 2) |
+-------------------------+
| ['abcde']               |
+-------------------------+
1 row in set (0.00 sec)