I can’t understand whether HA would rely on the standard postgresql tooling or if you have to pay for some kind of enterprise license to get it.
The code is source-available, license philosophy is explained in this blog post https://www.timescale.com/blog/building-open-source-business...
That includes the HA implementation, and I think someone else shared the docs for that. Hope this helps.
I can’t understand whether HA would rely on the standard postgresql tooling or if you have to pay for some kind of enterprise license to get it.