DDL语句如下：
CREATE TABLE ods_working_procedure_check_detail (
dim_id bigint NOT NULL,
uid bigint NOT NULL,
check_date datetime NOT NULL,
proj_code int NULL,
check_value float NULL
) ENGINE=OLAP
UNIQUE KEY(dim_id, uid, check_date)
DISTRIBUTED BY HASH(dim_id) BUCKETS 48;
普通的计数可以正常返回结果：
SELECT year(check_date) as cyear, month(check_date) as cmonth, count(1) as num
FROM ods_working_procedure_check_detail
where check_date >= '2023-12-01 00:00:00' and check_date < '2024-01-01 00:00:00'
group by 1,2;
一旦加了去重统计，就会报错：
SELECT year(check_date) as cyear, month(check_date) as cmonth, count(1) as num, count(distinct uid) as num1
FROM ods_working_procedure_check_detail
where check_date >= '2023-12-01 00:00:00' and check_date < '2024-01-01 00:00:00'
group by 1,2;
