On Fri, Jul 8, 2011 at 9:22 AM, AJ <a...@dude.podzone.net> wrote: > > I think it would be really cool to be able to rename a column, or, more > generally, a move command to move data from one column to another in the > same CF without the client having to read and resend the column value. This > would be extremely powerful, imo. I suspect the execution would be quick > and could even be made atomic (per node) as I suspect it would mostly entail > only reference updates.
Cassandra don't work like that. We would have no other choice than to read the column and write it back with a different name (and it would not be atomic). So the only win we would get from doing this server side would lie in not transferring the value across the network. -- Sylvain
