The core developers literally sell support... One 'feature' Oracle has, that is very important to some large companies, is that they offer truly full stack sup

The core developers literally sell support... One 'feature' Oracle has, that is very important to some large companies, is that they offer truly full stack support, from the hardware up to the application layer. If I buy support from some PG developers and they diagnose that the problem is actually with my RAID controller firmware or a bug in my inventory management software, will they still take responsibility for fixing it? Edit: Another aspect is how long will it take for one of those PG core developers to show up on site? Oracle already has a team of support engineers (either first or third party) in most major cities in the world.