I asked the author of the QuickLZ algorithm about licensing...
Sounds like he is willing to cooperate. This is what I got from him:
On Sat, Jan 3, 2009 at 17:56, Lasse Reinhold <lar@quicklz.com> wrote:
> Hi Stephen,
>
> That sounds really exciting, I'd love to see QuickLZ included into
> PostgreSQL. I'd be glad to offer support and add custom optimizations,
> features or hacks or whatever should turn up.
>
> My only concern is to avoid undermining the commercial license, but this
> can, as you suggest, be solved by exceptionally allowing QuickLZ to be
> linked with PostgreSQL. Since I have exclusive copyright of QuickLZ any
> construction is possible.
>
> Greetings,
>
> Lasse Reinhold
> Developer
> http://www.quicklz.com/
> lar@quicklz.com
>
> On Sat Jan 3 15:46 , 'Stephen R. van den Berg' sent:
>
> PostgreSQL is the most advanced Open Source database at this moment, it is
> being distributed under a Berkeley license though.
>
> What if we'd like to use your QuickLZ algorithm in the PostgreSQL core
> to compress rows in the internal archive format (it's not going to be a
> compression algorithm which is exposed to the SQL level)?
> Is it conceivable that you'd allow us to use the algorithm free of charge
> and allow it to be distributed under the Berkeley license, as long as it
> is part of the PostgreSQL backend?
> --
> Sincerely,
> Stephen R. van den Berg.
>
> Expect the unexpected!
> )
>
>
--
Sincerely, Stephen R. van den Berg.
