This is really cool, looking forward to trying it out.
Obligatory mention of Neon (https://neon.com/) and Xata (https://xata.io/) which both support “instant” Postgres DB branching on Postgres versions prior to 18.
Aurora clones are copy-on-write at the storage layer, which solves part of the problem, but RDS still provisions you a new cluster with its own endpoints, etc, which is slow ~10 mins, so not really practical for the integration testing use case.
Obligatory mention of Neon (https://neon.com/) and Xata (https://xata.io/) which both support “instant” Postgres DB branching on Postgres versions prior to 18.