This would be a solution if I wanted to get the N most recently CREATED guids,
but I'm interested in the most recently SEEN guids.
On May 8, 2010, at 10:00 AM, Ed Anuff wrote:
> Is there a reason you can't use time-based guids? Those would be sorted the
> way you wanted.
>
> On Fri, May 7, 2010 at 8:31 PM, William Ashley <wash...@gmail.com> wrote:
>
> Hopefully I’ve sufficiently explained what I’m trying to do. Now on to
> solving this problem in Cassandra. I’ve been trying to find a way that allows
> both of the above operations to be performed efficiently. Updates are a
> breeze with a structure like this:
>
> // Row key is userId
> 12345 : {
> // Column name is guid
> ‘256fb890-5a4b-11df-a08a-0800200c9a66’ : {
> // Column timestamp is last time guid was seen
> timestamp : 387587235233
> }
> }
>
