CASE in ORDER BY clause

[Louis-David Mitterrand <vindex+lists-pgsql-general@xxxxxxxxxxx>]

Hi,

I am trying the following:

	critik=# select start_date from show_date order by case when start_date > CURRENT_DATE then start_date desc else start_date asc end;
	ERROR:  syntax error at or near "desc"
	LINE 1: ...se when start_date > CURRENT_DATE then start_date desc else 
	...

If I remove the "desc" and "asc" then the quey is accepted but doesn't 
do what I want.

OTOH if I try:

	critik=# select start_date from show_date order by start_date case when start_date > CURRENT_DATE then desc else asc end;
	ERROR:  syntax error at or near "case"
	LINE 1: ...ect start_date from show_date order by start_date case when ...

How can i order ASC or DESC depending on a condition?

Thanks,