leachim6/hello-world — pull request #42 by d0ugal (2012-04-29 09:47:57+00:00)
Title: Update p/postgresql.sql

postgres=# SELECT 'Hello World' as hello_message;
hello_message
---------------
Hello World
(1 row)

postgres=# SELECT 'Hello World';
?column?
-------------
Hello World
(1 row)

The `as hello_message` doesn't really do anything other than give the column a name. This would be the same as performing a variable assignment in other languages, which those examples don't do.