A while ago we wrote about DZone RefCards cheatsheets and how its a shame there isn't one for PostgreSQL. They are a very attractive and useful vehicle for learning and brushing up on the most important pieces
of a piece of software or framework. Since that time we have been diligently working on one for PostgreSQL to fill the missing PostgreSQL slot. The fruits of
our labor are finally out, and a bit quicker than we expected. The cheatsheet covers both old features and new features introduced in PostgreSQL 8.4. We hope its useful to many old and new PostgreSQL users.