Cassandra has no way of knowing that all the data is in the most recent sstable, and will have to check the others too, and this bring a lot of difficulty to data compaction.
I have a question that if I want a high performance data compaction, how can I implement that all the columns are all in the most recent sstable, by this, I think the read and write performace will be better. Thanks. 2012-02-17 zhangcheng