Paginating over rows in a partition

As our users create more and more  status updates, we'll build pagination functionality into MyStatus so that the information on the page doesn't overwhelm readers. For the sake of convenience, let's say that each page will only contain three status updates.

To retrieve the first page, we'll use the LIMIT keyword that we first encountered in Chapter 2, The First Table:

SELECT "id", DATEOF("id"), "body"
FROM "user_status_updates"
WHERE "username" = 'alice'
LIMIT 3;

As expected, Cassandra will give us the first three rows in ascending order of id:

Now, we'll ask for the collection of rows where the id value is strictly greater than the last id we saw:

SELECT "id", DATEOF("id"), "body"
FROM "user_status_updates"
WHERE "username" = 'alice'
AND id > 3f9df710-e8f7-11e3-9211-5f98e903bf02
LIMIT 3;

This is similar to the pagination query for users that we made in Chapter 2, The First Table, but in some ways it's simpler. We keep the restriction of rows to alice's...