without the ability to do disjoint column slices, i would probably use 5
different rows.
userId:itemType -> activityId
then it's a multiget slice of 10 items from each of your 5 rows.
On 26/03/2012 22:16, Ertio Lew wrote:
I need to store activities by each user, on 5 items types. I always
want to read last 10 activities on each item type, by a user (ie,
total activities to read at a time =50).
I am wanting to store these activities in a single row for each user
so that they can be retrieved in single row query, since I want to
read all the last 10 activities on each item.. I am thinking of
creating composite names appending "itemtype" :
"activityId"(activityId is just timestamp value) but then, I don't see
about how to read the last 10 activities from all itemtypes.
Any ideas about schema to do this better way ?
