License question

From: Shachar Shemesh <psql(at)shemesh(dot)biz>
To: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: License question
Date: 2004-04-22 09:35:20
Message-ID: 408791D8.1010600@shemesh.biz
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Hi all,

Who can give an authorative answer regarding distributing PostgreSQL
under a different license?

In particular, the front page claims that PostgreSQL is under the BSD
license. The problem is that there are two. The four clause license,
which is not GPL compatible, and the three clause, which is.
Then again, the license itself is neither three not four clause. It is
somewhat similar to the X11 license, though not identical.

The problem is this:
I'm using some code adapted from the PostgreSQL sources in the OLE DB
provider, which is LGPL. I am not sure whether the PostgreSQL license is
LGPL compatible, or what I need to do in order to use it. I have already
placed copyright notices copied from the file I copied the actual code
from, but do I need to do anything else? Is it at all possible to do
this relicensing?

Shachar

--
Shachar Shemesh
Lingnu Open Source Consulting
http://www.lingnu.com/

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