On Mon, May 24, 2010 at 4:53 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > (a) cassandra does not use update-in-place storage so doing the update > as part of the get call isn't much of an efficiency gain
If you could issue an "update" type of command, any other data needed for the new copy of the object could be copied internally to the server, saving the round-trip of that data over the wire to the client. I know from my own experience using Postgres that this is a big win for some operations. In this particular case there are several megabytes of data involved, so there would be a significant efficiency gain, IMO.
