BUG #5911: pg_notify() function only works when channel name is lower case

The following bug has been logged online:

Bug reference: 5911
Logged by: Joshua McDougall
Email address: josh(at)schemaverse(dot)com
PostgreSQL version: 9.0.3
Operating system: Slackware Linux Kernel 2.6.28.6
Description: pg_notify() function only works when channel name is
lower case
Details:

When using the pg_notify(text,text) function, the channel name MUST be lower
case otherwise the message does not go through.

So, while this will work:

LISTEN ERRORCHANNEL;
NOTIFY ERRORCHANNEL, 'something!';
NOTIFY eRrorChanNel, 'something!';

this will not:
SELECT pg_notify('ERRORCHANNEL','something!');

You must use:
SELECT pg_notify('errorchannel','something!');