GoKawiilGnomon launches as a Postgres extension for branching live database data
Gnomon is a new Postgres extension that lets developers create branches of a live database, similar to Git branches, by issuing SQL commands rather than copying data. Branches read from the main database and store only changed rows, so they open instantly regardless of database size, and changes can later be diffed, merged back with conflict handling, or undone. It installs directly into existing PostgreSQL 15-18 instances, including self-hosted and managed services like RDS, Aurora and Supabase.