Replication v17

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.