It already exists: https://www.enterprisedb.com/products/edb-postgres-advanced-server-secure-ha-oracle-compatible https://www.enterprisedb.com/products/edb-post

It already exists: https://www.enterprisedb.com/products/edb-postgres-advanced-server-secure-ha-oracle-compatible https://www.enterprisedb.com/products/edb-postgres-advanced-... I'm not sure exactly how compatible - I've never had to use it - but EDB has been around for a while and is commercially backed. Plus they employ some core PostgreSQL contributors.