Overview#
EDB Postgres Distributed (PGD) provides multi-master replication and data distribution with advanced conflict management, data-loss protection, and throughput up to 5X faster than native logical replication . It also enables distributed Postgres clusters with high availability up to five 9s.
- Postgres Distributed terminology
- Asynchronous replication
- Commit scopes
- CAMO or commit-at-most-once
- Conflicts
- Connection Manager
- Consensus
- Cluster
- DDL (data definition language)
- DML (data manipulation language)
- Durability
- Eager
- Eventual consistency
- Failover
- Group commit
- Immediate consistency
- Lag Control
- Logical replication
- Logical standby node
- Node
- Node groups
- PGD cluster
- PGD node
- Physical replication
- Postgres cluster
- Quorum
- Quorum Commit
- Replicated available fault tolerance (Raft)
- Read scalability
- Subscription
- Switchover
- Synchronous replication
- Subscriber-only nodes
- Two-phase commit (2PC)
- Vertical scaling or scale up
- Witness nodes
- Write leader
- Writer
- Known issues and limitations
- PGD compatibility
- Product lifecycle and release roadmap