PostgreSQL + Replication, is 100% pure PostgreSQL with integrated replication. Written in pure C, the Mammoth PostgreSQL + Replication is a powerful addition to the Command Prompt PostgreSQL line of products. It is designed specifically with reliability in mind and it works with the Open Source and Command Prompt versions of PostgreSQL. Mammoth PostgreSQL + Replication supports asynchronous replication and is designed to be WAN tolerant. It uses a distributed TransactionLog to keep track of updates produced by the Master database. The system allows for multiple Slaves to receive updates in either a continuous or batch mode.
Documentation
1.7 documentation

Requirements

The primary requirements for Mammoth PostgreSQL + Replication are:

1. The table to be replicated must contain a Primary Key. Multi-column keys are okay.
2. The database name on the Master & Slaves must be the same.

Features

1. Master to Multi-Slave
2. Per table replication selection
3. SSL connectivity between communication processes
4. Compressed connectivity for greater efficiency
5. Designed to be WAN and congested network tolerant
6. Batch Mode for updates to offsite locations at off peak hours
7. Continuous mode for live replication.
8. Combined with Heartbeat or other failover software it provides a true "in the database" 24/7 capable PostgreSQL.
9. Self-installable: With complete and thorough documentation, any qualified system administrator can install Mammoth PostgreSQL + Replication.
10. Backed by a long term company with 8 straight years of profitable operation, with no debt, no outside investors, and who is a member of the Better Business Bureau.
11. Source Available: Although not Open Source, a non distributable version of the source is optionally available with the software and should Command Prompt, Inc. at any time cease business operations or end of life the Mammoth PostgreSQL + Replication product, the delivered source code shall be released under an Open Source license that conforms to the Open Source definition as described at OpenSource.org.
12. Reasonable cost: Starting at just 1000.00 for a Master/Slave solution, Mammoth PostgreSQL + Replication is the most cost effective replication solution available for PostgreSQL.

Availability

Going Open Source! Watch this page