1. A machine-implemented method, comprising: initializing an intermediate storage structure to house regression input variables on each node of a database environment; gathering data from a database into the intermediate storage structures on each node; and merging year week data found on each of the nodes together, via the intermediate storage structure, and pertaining to a same product stock keeping unit (SKU); placing the merged year week data on a particular node; and processing a regression service for each SKU on each node.