Book Image

MySQL 5.1 Plugin Development

Book Image

MySQL 5.1 Plugin Development

Overview of this book

MySQL has introduced a Plugin API with its latest version – a robust, powerful, and easy way of extending the server functionality with loadable modules on the fly. But until now anyone wishing to develop a plugin would almost certainly need to dig into the MySQL source code and search the Web for missing bits of the information.This is the first book on the MySQL Plugin API. Written together with one of the Plugin API primary architects, it contains all the details you need to build a plugin. It shows what a plugin should contain and how to compile, install, and package it. Every chapter illustrates the material with thoroughly explained source code examples.Starting from the basic features, common to all plugin types, and the structure of the plugin framework, this book will guide you through the different plugin types, from simple examples to advanced ones. Server monitoring, full-text search in JPEG comments, typo-tolerant searches, getting the list of all user variables, system usage statistics, or a complete storage engine with indexes – these and other plugins are developed in different chapters of this book, demonstrating the power and versatility of the MySQL Plugin API and explaining the intricate details of MySQL Plugin programming.
Table of Contents (16 chapters)
MySQL 5.1 Plugin Development
Credits
About the Authors
About the Reviewer
Preface

Possible extensions


Our TOCAB engine, although fully functional, is still missing few features, before it can be truly called a general purpose storage engine for MySQL. For example:

  • Working delete_row() and update_row() methods.

  • Auto-increment implemented in the engine—this is the only way to make sure that auto-increment numbers are not reused. If it is implemented in the server, as is the case with our engine, every new auto-increment number is the largest auto-increment number in the table plus one. Obviously, when we delete the row with the largest auto-increment number and insert a new row we get the same auto-increment number.

  • A working records_in_range() method. Most probably it would require some modifications in the Tokyo Cabinet source code.

  • Our engine should not require the user to specify a primary key, but needs to generate a hidden primary key automatically, if necessary.

  • Working optimize() and analyze() methods (there is the tcbdboptimize() method that can be used here...