Compaction assumes that the sstables it has as input are ordered correctly (otherwise it would have to read the full row into memory to re-sort). So it would have to be a new operation, and not feasible in general for larger-than-memory rows. I don't think we'll ever add this.
On Wed, Feb 23, 2011 at 6:23 PM, Narendra Sharma <narendra.sha...@gmail.com> wrote: > Today it is not possible to change the comparators (compare_with and > compare_subcolumns_with). I went through the discussion on thread > http://comments.gmane.org/gmane.comp.db.cassandra.user/12466. > > Does it make sense to atleast allow one way change i.e. from specific types > to generic type? For eg change from TimeUUIDType or UTF8 to BytesType. This > could be a manual process where users will do the schema change and then run > major compaction on all the nodes to fix the ordering. > > Thanks, > Naren > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
