0.6 has Hadoop map/reduce support (see contrib/wordcount for an example) but this is more for analytics (small numbers of large queries) than live web app style load.
Cassandra also has range queries (get_slice_range) -- performing a slice across sequential rows, where you don't necessarily know all the keys in advance -- which is suitable for low latency queries. On Thu, Mar 4, 2010 at 11:00 AM, Matthew Chambers <chamb...@imageworks.com> wrote: > Hi everyone, I've been tasked with researching noSQL databases for use at > Imageworks. So far I've checked out Couch, HBase, and Cassandra. One > question I have, and I've looked around for this but couldn't find anything, > does Cassandra have integrated map/reduce functionality or do you access data > purely by unique key? > > -Matt >