In some cases you may be able to add a secondary index. Aaron
On 14 Apr 2011, at 03:11, Edward Capriolo wrote: > On Wed, Apr 13, 2011 at 10:39 AM, Jean-Yves LEBLEU <jleb...@gmail.com> wrote: >> Hi all, >> >> Just some thoughts and question I have about cassandra data modeling. >> >> If I understand well, cassandra is better on writing than on reading. >> So you have to think about your queries to design cassandra schema. We >> are doing incremental design, and already have our system in >> production and we have to develop new queries. >> How do you usualy do when you have new queries, do you write a >> specific job to update data in the database to match the new query you >> are writing ? >> >> Thanks for your help. >> >> Jean-Yves >> > > Good point, Generally you will need to write some type of range > scanning/map reduce application to process and back fill your data.
