SQL Load Balancer for PostgreSQL - Mailing list pgsql-php

Here is a new project that some people might be interested
in.  This project now supports Oracle8i and PostgreSQL.
There is a PHP module as well.

SQL Load Balancer  (SQLB)
http://sqlb.sourceforge.net/

The SQLB project is used to improve SQL requests to a
database. It provides programs that have permanent
connections to a DB, a program that checks the integrity of
transactions, and a library to link with programs that need
to make SQL queries.

Brent