"Louis-David Mitterrand" <[EMAIL PROTECTED]> writes: > However if I try: > > select start_date from show_date order by 'start_date desc'; > > I get a: > > ERROR: non-integer constant in ORDER BY
The quotes mean you are asking to sort by the string "start_date desc" which is an error because sorting by a constant value is pointless. Moreover, "asc" and "desc" are part of the order by and have to go after the expression. Look more carefully at the original suggestion: On Fri, Jul 06, 2007 at 08:02:54PM +0400, Viatcheslav Kalinin wrote: > > # select start_date from show_date > # order by > # case when start_date > CURRENT_DATE then start_date end desc, > # case when start_date <= CURRENT_DATE then start_date end asc; This is two sorting expressions, one of which will be null for all rows but which one is null will vary from row to row. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
