1
说我观察超速事故所在的表架构如下:蜂巢组通过与立方体组在同一查询
create table speeding_data(
date_of_occurrence date,
year int,
make string,
model string,
speed int
);
我想观察下的不同组合平均速度这些特征,但希望它总是按照date_of_occurrence
分组,例如东西可能是这样的
select date_of_occurrence, year, make, model, avg(speed)
from speeding_data
group by date_of_occurrence
group by year, make, model with cube;
只是想知道是否有产生这种结果蜂巢?