--! qt:dataset:part | |
select p_mfgr, p_name, p_size, | |
min(p_retailprice), | |
rank() over(distribute by p_mfgr sort by p_name)as r, | |
dense_rank() over(distribute by p_mfgr sort by p_name) as dr, | |
p_size, p_size - lag(p_size,-1,p_size) over(distribute by p_mfgr sort by p_name) as deltaSz | |
from part | |
group by p_mfgr, p_name, p_size | |
; |