You seem to be working for EnterpriseDB, which is a company specializing on postgres. So how does EnterpriseDB sell the advanced server? By modifying it, I guess! So that is something similar I want to do. Getting a few dollars for some hard work is not bad for me. Plus I love to find new things, so it would be fun as well.
I would surely include the PostgreSQL licence in the product (if I get successful to) and sell it to a few peopl who are looking for some specific features and are pissed off with the great MySQL. Thanks to both DAVE and Heikki :) -Vaibhav (*_*) On Sun, Sep 19, 2010 at 11:58 PM, Heikki Linnakangas < heikki.linnakan...@enterprisedb.com> wrote: > On 20/09/10 09:48, Vaibhav Kaushal wrote: > >> 1. PostgreSQL can be distributed freely according to the license terms. >> Can >> it be sold (for a price) without changing anything in the source? >> > > Yes. > > You will have a hard time finding anyone to buy it, though, because you can > download it for free from the PostgreSQL website. > > > 2. Does the license restrict me from adding my closed source additions to >> the project and then sell the product? I want to add in a few files here >> and >> there which would be closed source in nature, while all the changes made >> to >> the original files will be open, and then sell the modified database with >> a >> dual license. Is this possible? >> > > In general, yes. I don't know what exactly you mean by the dual license, > but you are free to mix proprietary code with the PostgreSQL sources, and > sell or distribute for free the combined product with or without sources. > The only requirement of the PostgreSQL license is that all copies must > include the copyright notices and the license text. > > (Disclaimer: I am not a lawyer) > > -- > Heikki Linnakangas > EnterpriseDB http://www.enterprisedb.com >
