Hi, Depends on your data, but just emit transaction id from set as key and his amount as value with map and _sum these values with reduce function. If you need totals for all set, then emit [set_id, item_id] key and group results by specific level.
-- ,,,^..^,,, On Tue, Jul 31, 2012 at 6:38 AM, Samuel Williams <[email protected]> wrote: > Hi, > > Given a set of transactions with each transaction having an integer amount > or something similar, is it possible to generate a running total for each > transaction using map-reduce in CouchDB? > > Kind regards, > Samuel
