From the objective of OSS-DB Exam Silver - General Knowledge - general features of OSS-DB
Sample Question
2.03
I want to modify the functionality of PostgreSQL. Choose the answer from the following descriptions.
- The only way to do this is to request the PostgreSQL global development community to alter the code base.
- You may request the Japan based PostgreSQL User Group to modify the source code for a fee.
- If you purchase the source code for a fee, you can freely modify it and distribute it.
- The source code is free, but special permission from the global development team is necessary to distribute the modified code.
- Source code obtained free of charge maybe modified and then distributed for a fee.
※This sample exam is different from those that appear in the actual OSS-DB Exam.
2018/04/02
Answer and Explanation
The PostgreSQL License is based on BSD, allowing distribution of source code free of charge; no special restrictions apply to its modification.
Distribution of source code does not require any obligation to display the license agreement, nor is there an obligation to disclose modified code. You may also charge a fee for the distribution of the product if you so wish.
New functionality may be requested of the global development community, but that is not the only way to introduce new functionality.
As the Japan based PostgreSQL User Group is a community based user group, they do not provide services such as product modification.
Therefore, the correct answer is E.