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From Robert Coli <rc...@digg.com>
Subject Re: Is there any way to store muti-version data based on the timestamp?
Date Wed, 01 Dec 2010 17:36:36 GMT
On 12/1/10 4:56 AM, Daniel Lundin wrote:
>> Correct. Unlike BigTable and HBase, Cassandra columns don't have a
>> version dimension.
>> Timestamp is used for (crude) conflict resolution, and older versions
>> are always overwritten.
I would be careful with the word "overwritten" here as it obfuscated the 
immutability of SSTables, and conceptual understanding of same is 
important to understanding the actual versioning behavior and how it 
relates to what data has to be read to satisfy queries. :)

=Rob


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