Question

pycassa has pycassa.util.convert_time_to_uuid(time_arg, lowest_val=True, randomize=False)

phpcassa has static string uuid1 ([string $node = null], [int $time = null])

Can phpcassa’s uuid1 be used to get lowest/highest uuids like in pycassa?
If not, what’s the best approach to ensure you get everything between two given timestamps?

Answer 1

Strictly speaking, Cassandra sorts primarily by the timestamp component of a v1 UUID, and in the case of a tie, it sorts by the remaining bytes:

int res = compareTimestampBytes(o1, o2);
if (res != 0)
    return res;
return o1.compareTo(o2);

phpcassa should offer something similar to pycassa here. As a workaround in the meantime, you can set the last 8 bytes of the return value to 0x00.