If someone is planning to use PostgreSQL as a NoSQL solution, one can use BDR (Bi-Directional Multi-Master Replication -> https://github.com/2ndQuadrant/bdr htt

If someone is planning to use PostgreSQL as a NoSQL solution, one can use BDR (Bi-Directional Multi-Master Replication -> https://github.com/2ndQuadrant/bdr https://github.com/2ndQuadrant/bdr) and its global sequences (if needed). There are plenty of other replication solutions available for Postgres, indeed.