View - map and reduce
I do not can clearly understand how I can do next functionality. I have the big view, and I need to create few reports by data of view. As I read in documentation it's possible to do with reduce() function but it's not recomentded: "not to transform the output information or concatenate the information into a single structure...". If I return all data from view and apply filtering and grouping logic in my application it's will realy slow. I read documentation again and not found way to resolve my issue. Any help?