We have built a similar system, you can ready about our data model in CQL3 here:We are going to be presenting a similar talk next week at the cassandra summit.--On Fri, Jun 7, 2013 at 12:34 PM, Davide Anastasia <Davide.Anastasia@qualitycapital.com> wrote:
I am trying to build the storage of stock prices in Cassandra. My queries are ideally of three types:
- give me everything between time A and time B;
- give me everything about symbol X;
- give me everything of type Y;
…or an intersection of the three. Something I will be happy doing is:
- give me all the trades about APPL between 7:00am and 3:00pm of a certain day.
However, being a time series, I will be happy to retrieve the data in ascending order of timestamp (from 7:00 to 3:00).
I have tried to build my table with the timestamp (as timeuuid) as primary key, however I cannot manage to get my data in order and and “order by” in CQL3 raise an error and doesn’t perform the query.
Does anybody have any suggestion to get a good design the fits my queries?