I saw on this page: http://wiki.apache.org/cassandra/API07
*KeyRange A KeyRange is used by get_range_slices to define the range of keys to get the slices for. The semantics of start keys and tokens are slightly different. Keys are start-inclusive; tokens are start-exclusive. Token ranges may also wrap -- that is, the end token may be less than the start one. Thus, a range from keyX to keyX is a one-element range, but a range from tokenY to tokenY is the full ring. from the above, tokens are start-exclusive, then a range from tokenY to tokenY will not include tokenY, so the range is not the "full ring", am I right? -stanley *
