Hi Alex, Will your suggested approach give me a running balance such as on a bank statement with a list of transactions?
Kind regards, Samuel On 31 July 2012 18:12, Alexander Shorin <[email protected]> wrote: > 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 >
