CREATE TABLE `tbl1` (
  `k1` int(11) NULL COMMENT "",
  `k2` int(11) NULL COMMENT ""
) ENGINE=OLAP
DUPLICATE KEY(`k1`, `k2`)
COMMENT "OLAP"
DISTRIBUTED BY HASH(`k1`) BUCKETS 1
PROPERTIES (
"replication_num" = "1",
"in_memory" = "false",
"storage_format" = "V2"
);

insert into tbl1 values(1,2);
delete from tbl1 where k1=1;
alter table tbl1 modify column k2 bigint key;