What is the copyright of PostgreSQL?
PostgreSQL is distributed under the classic BSD license. Basically, it allows users to do anything they want with the code, including reselling binaries without the source code. The only restriction is that you not hold us legally liable for problems with the software. There is also the requirement that this copyright appear in all copies of the software. Here is the actual BSD license we use: PostgreSQL Data Base Management System Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group Portions Copyright (c) 1994-1996 Regents of the University of California Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies.
PostgreSQL is distributed under the classic BSD license. Basically, it allows users to do anything they want with the code, including reselling binaries without the source code. The only restriction is that you not hold us legally liable for problems with the software. There is also the requirement that this copyright appear in all copies of the software.