PostgreSQL forks and evolutions

  • HadoopDB – hybrid of MapReduce and DBMS.
  • IBM Netezza – high-performance data warehouse appliances.
  • Postgres-XL – Scalable Open Source PostgreSQL-based Database Cluster.
  • RecDB – Open Source Recommendation Engine Built Entirely Inside PostgreSQL.
  • Stado – open source MPP database system solely targeted at data warehousing and data mart applications.
  • Yahoo Everest – multi-peta-byte database / MPP derived by PostgreSQL.