May 26, 2018
PostgreSQL master to multiple replicas replication system
Slony-I is enterprise-level “master to multiple slaves” replication system with cascading and failover.
The big picture for the development of Slony-I is to build a master-slave system that includes all features and capabilities needed to replicate large databases to a reasonably limited number of slave systems.
Slony-I is developed as a system for data centers and backup sites, where the normal mode of operation is that all nodes are available.
Differences from 1.2 stream
Removal of TABLE ADD KEY
It drops all support for databases prior to PostgreSQL version 8.3.