The following table lists the basic concepts involved in HybridDB for PostgreSQL.
|Group||The operation unit in HybridDB for PostgreSQL.
|Group type||The package of computing resources available.
|Number of groups||The number of purchased groups.
|MPP||Massively Parallel Processing, a distributed Shared Nothing computing architecture. MPP improves the performance by parallel computing of multiple shared-nothing nodes (known as groups in HybridDB for PostgreSQL).|