Preface

Table of Contents
What is Postgres-XL?
A Brief History of PostgreSQL and Postgres-XL
Conventions
Further Information
Bug Reporting Guidelines

This book is the official documentation of Postgres-XL. It has been written by the Postgres-XL developers and other volunteers in parallel to the development of the Postgres-XL software. It describes all the functionality that the current version of Postgres-XL officially supports.

Postgres-XL is essentially a collection of multiple PostgreSQL database to provide both read and write performance scalability. It also provides full-featured transaction consistency as PostgreSQL provides, at the exception of SSI which is incomplete.

Postgres-XL inherits almost all major features from PostgreSQL. This document is also based upon PostgreSQL reference manual.

To make the large amount of information about Postgres-XL manageable, this book has been organized in several parts. Each part is targeted at a different class of users, or at users in different stages of their Postgres-XL experience: