@wraptile i totally get your concern and kina agree. I know the pain of dealing with GUIDs from the consumer-developer perspective but the main drawback is the length of it and that it's impossible to remember that string (so you need to copy-paste it all the time). But really, that's not a huge problem. My biggest argument for is that it's supported natively by PostgreSQL so no additional maintenance is needed at any time in the future. And the less 3rd party maintenance needed, the better