DATETIME类型。 mysql> CREATE TABLE testTable1 (k1 bigint, k2 varchar(100), v decimal SUM) DISTRIBUTED BY RANDOM BUCKETS 8; mysql> CREATE TABLE testTable1 (k1 bigint, k2 varchar(100), v decimal SUM) DISTRIBUTED -+ +-------+----------------+------+-------+---------+-------+ | k1 | bigint(20) | Yes | true | N/A | | | k1 | bigint(20) | Yes | true | N/A | | | k2 | varchar(100) in set (0.01 sec) CREATE TABLE testTable2 (k1 bigint, k2 varchar(100), v decimal(8,5) SUM) DISTRIBUTED BY RANDOM BUCKETS 8; CREATE TABLE testTable2 (k1 bigint, k2 varchar(100), v decimal(8,5) SUM) DISTRIBUTED