The following bug has been logged online:
Bug reference: 4037
Logged by: Daniel Cristian Cruz
Email address: danielcristian@gmail.com
PostgreSQL version: 8.3
Operating system: Windows
Description: Manual bug: 2.5. Querying a Table
Details:
Where it says:
"Notice how the AS clause is used to relabel the output column. (The AS
clause is optional.)"
It's wrong, because it causes an error if executed without it.