case RENAME:
for (Map.Entry<ColumnIdentifier, ColumnIdentifier> entry : renames.entrySet())
{
ColumnIdentifier from = entry.getKey();
ColumnIdentifier to = entry.getValue();
cfm.renameColumn(from.key, from.toString(), to.key, to.toString());
}
break;
}
MigrationManager.announceColumnFamilyUpdate(cfm, false);