You cannot set the the TTL without also setting the column value. 

Could you keep a record of future deletes in a CF and then action them as a batch process ? 


Aaron Morton
Freelance Developer

On 5/04/2012, at 2:00 PM, 金剑 wrote:


We would like to leverage Cassandra's expiration to manage our data's lifecycle. We need to: Delete data after a period, like: 1 hour , when user clicked the "Delete" button. 

We need to read and insert the column in order to update the TTL, but this is unacceptable in our system that might need to readout gigabytes of data.

Is there a way to do this?

Best Regards!

Jian Jin