3 ms·

Further down that thread: > Fractal tree indexes are patented. It is distributed as commercial extension to MySQL. So we can't include it into PostgreSQL core.

Further down that thread: > Fractal tree indexes are patented. It is distributed as commercial extension to MySQL. So we can't include it into PostgreSQL core. http://www.postgresql.org/message-id/CAPpHfdtV46zQjp88HR5U3hw-Uw7xYWrVDGgyqOE6NWYKQrtPLA@mail.gmail.com http://www.postgresql.org/message-id/CAPpHfdtV46zQjp88HR5U3h...

jdc0589 11y ago
wow... thats pretty depressing
- rch 11y ago
  It's been a while - patents are designed to expire, and in this area they sometimes actually do.
  - hyperpape 11y ago
    Sometimes? I wasn't aware there were exceptions.
deciplex 11y ago
Here's the patent: http://www.google.com/patents/US8185551 http://www.google.com/patents/US8185551 Regarding using the tech in OSS, there is an interesting discussion here: https://www.reddit.com/r/linux/comments/1hn7rg/whats_next_after_btrees_as_in_btrfs_fractal_tree/ https://www.reddit.com/r/linux/comments/1hn7rg/whats_next_af... (see the comment from bradleykuszmaul a little ways down).