The book "PostgreSQL 8.4 Official Documentation - Volume IV. Reference" is the part of the official documentation for PostgreSQL 8.4.

To make the large amount of information about PostgreSQL manageable, this information has been organized in several volumes. Each volume is targeted at a different class of users, or at users in different stages of their PostgreSQL experience:

Volume IV consists from:

• Part VI contains reference information about SQL commands, client and server programs. This part supports the other parts with structured information sorted by command or program.