Hi, all I have a tuple like this: (group_a,group_b,group_c,value) and I want to calculate the values in a data cube way, which means I want to generate new tuples from the original one :
(all,all,all,value) (group_a,all,all,value) (all,group_b,all,value) (group_a,group_b,all,value) (all,all,group_c,value) (group_a,all,group_c,value) (all,group_b,group_c,value) and then group by ($0, $1, $2) . How can I do this? I've wrote a Eval function, but it can not generate more tuples from one tuple. thanks. Haitao Yao [email protected] weibo: @haitao_yao Skype: haitao.yao.final
