I know it can exist just fine as an independent extension. I was asking more about whether you had gotten any signal that the core team was interested at all.

With software projects like these, you often have a somewhat insular core team who isn't particularly amenable to innovations that may be perceived as disruptive or "not invented here" or going against the grain, or for other reasons. With 30+ years fighting the downsides of MVCC vacuums and heap bloat you would think and hope they would be jumping at the opportunity.

The extension system is great. But extensions will always suffer from not being part of the core. For example, if you use a cloud provider like AWS and GCP, you're limited by what extensions are included, as well as their release cadence.