Pgpool-II is a middleware that works between PostgreSQL servers and a
PostgreSQL database client. It has support for:

  - Connection Pooling
  - SQL Level Replication
  - Load Balancing
  - Limiting Exceeding Connections

Docs are available at: http://www.pgpool.net/docs/latest/en/html/

Note that this SlackBuild comes without a default configuration.
Sample config files will be installed to "/etc/pgpool.conf.sample-*".