Greenplum Database does have a Postgres heritage; however, Greenplum Database forked from Postgres some time ago and has devoted years of research and development efforts to build several industry-leading database and analytics features in the Greenplum kernel. Greenplum has industry leading data-loading capabilities and provides various innovative features like Polymorphic Data Storage™, MPP Scatter/Gather Streaming™, Greenplum MapReduce, and Multilevel

Fault Tolerance. Please visit http://www.greenplum.com/technology/architecture to learn more about Greenplum architecture.