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From Sylvain Lebresne <sylv...@datastax.com>
Subject Re: Command Request: rename a column
Date Fri, 08 Jul 2011 08:18:30 GMT
On Fri, Jul 8, 2011 at 9:22 AM, AJ <aj@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

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