Count of the columns in a row, not an exact count as that would requiring 
stopping clients from writing to the row and we do not do that. 

Have a poke around 
http://www.datastax.com/docs/0.8/data_model/index
and
http://wiki.apache.org/cassandra/DataModel

Or are you asking about counter columns ?

Cheers

 
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com

On 14 Jun 2011, at 03:27, Sijie YANG wrote:

> Hi, All
> 
> I am newbie to cassandra. I have a simple question but don't find any clear 
> answer by searching google: 
> What's the meaning of count column in Cassandra? Thanks.

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