cassandra - Does the SSTable change when I update a column? -


i understand insert operations come commitlog first, , memtable second, after compacted sstable.

after compaction sstable, perform update operation existing column. must sstable changed update value of column?

http://wiki.apache.org/cassandra/memtablesstable says:

once flushed, sstable files immutable; no further writes may done

your updated value written commitlog, , memtable, , flushed new sstable on-disk. later, sstable may merged other sstables form new larger sstable (and old ones discarded) - compaction stage.


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