It doesn't. It collects the row on each sstables and then merge all the columns of each snapshot of that row, dropping the deleted ones and solving using the timestamp the ones with conflicts
Sent from my iPhone On 09/04/2011, at 21:52, mcasandra <mohitanch...@gmail.com> wrote: > That I understand but my basic quesiton was how does it know that there are > multiple updates that have occurred on the same column? and how does it > efficiently knows which sstable have these updates? > > -- > View this message in context: > http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Columns-values-integer-need-frequent-updates-increments-tp6251464p6258033.html > Sent from the cassandra-u...@incubator.apache.org mailing list archive at > Nabble.com.