Replication

EDB Postgres Extended Server provides the core functionality to support the following replication and high availability features in

EDB Postgres Distributed :

• Commit At Most Once (CAMO)

• Group commit

• Eager replication

• Decoding worker

• Assessment tooling

• Lag tracker

• Lag control

• Timestamp snapshots

• Transaction streaming

• Missing partition conflict

• No need for UPDATE trigger on tables with TOAST

• Automatically hold back FREEZE

Asynchronous processing

EDB Postgres Extended Server includes a synchronous_replication_availability parameter. A value of async for this parameter enables asynchronous processing when not enough standby servers are available (when compared with the values as per synchronous_standby_names ). The behavior reverts to synchronous replication when the required number of synchronous standby servers reappear.