LabelMapBuilder: implementation using java quicksort + heap sort
This is a lot more efficient in terms of disk space and processing speed than piping nodes to GNU sort.
Migrated from D7475 (view on Phabricator)
Staging instance, all changes can be removed at any time
This is a lot more efficient in terms of disk space and processing speed than piping nodes to GNU sort.
Migrated from D7475 (view on Phabricator)