> If you want to use any part of this document and/or any figure, please contact me. If you work at Amazon, you cannot use and refer to this document because of the copyright violation issues. This is an interesting inclusion, would they be referring to copies of this book being sold on Amazon? Or usage in their documentation? I'm genuinely curious what the issue is with them...
Not sure but I assume it's Amazon offering Postgres as a service through AWS Aurora.
Unlikely, Postgres license is as liberal as they get:
> 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.