EnterpriseDB does exactly this on top of PostgreSQL and has done so for a long time. Early on, their compatibility layer was their USP. https://www.enterprise

EnterpriseDB does exactly this on top of PostgreSQL and has done so for a long time. Early on, their compatibility layer was their USP. https://www.enterprisedb.com/docs/epas/latest/fundamentals/epas_fundamentals/epas_compat_ora_dev_guide/ https://www.enterprisedb.com/docs/epas/latest/fundamentals/e...