I cannot Display the Book page you are referring to, but your General understanding is correct. A Range Refers to several rows, a slice Refers to several columns. A RangeSlice is a combination of Both. From all rows in a Range get a specific slice of columns.
Am 25.05.2011 um 10:43 schrieb "david lee" <iecan...@gmail.com<mailto:iecan...@gmail.com>>: hi guys, i'm reading up on the book "Cassandra - Definitive guide" and i don't seem to understand what it says about "ranges and slices" my understanding is a range as in "a mathematical range to define a subset from an ordered set of elements", in cassandra typically means a range of rows whereas a slice means a range of columns. a range query refers to a query to retrieve a range of rows whereas a slice range queyr refers to a query to retrieve range of columns within a row. i may be talking about total nonsense but i really am more confused after reading this portion of the book <http://books.google.com/books?id=MKGSbCbEdg0C&pg=PA134&lpg=PA134&dq=cassandra+%22range+query%22+%22range+slice%22&source=bl&ots=XoPB4uA60u&sig=uDDoQe0FRkQobHnr-vPvvQ3B8TQ&hl=en&ei=ub3cTcvGLZLevQOuxs3CDw&sa=X&oi=book_result&ct=result&resnum=4&ved=0CCwQ6AEwAw#v=onepage&q=cassandra%20%22range%20query%22%20%22range%20slice%22&f=false>http://books.google.com/books?id=MKGSbCbEdg0C&pg=PA134&lpg=PA134&dq=cassandra+%22range+query%22+%22range+slice%22&source=bl&ots=XoPB4uA60u&sig=uDDoQe0FRkQobHnr-vPvvQ3B8TQ&hl=en&ei=ub3cTcvGLZLevQOuxs3CDw&sa=X&oi=book_result&ct=result&resnum=4&ved=0CCwQ6AEwAw#v=onepage&q=cassandra%20%22range%20query%22%20%22range%20slice%22&f=false many thanx in advance david
