Change in behaviour of ORDER BY clause in PG7.3

Since upgrading to 7.3 I've noticed that the ORDER BY clause seems to 
ignore leading spaces/punctuation for eg we have a simple table with 6 
rows containing:

'a'
'b'
'c'
'd'
' bill'
'-bill'

SELECT * FROM table ORDER BY 1;

gives:

a
bbill
-bill
c
d

which is different from previous versions and different to MySQL and SQL 
Server. Is this a bug, or can you turn this behaviour off? It's breaking a 
lot of our applications!

-- 
Ollie Clark    -    oliverc@comp.leeds.ac.uk    -    ol@ollieclark.com
http://www.ollieclark.com/acronyms.html