>>> On Tue, Aug 14, 2007 at 8:48 AM, in message
<b1a365afcf3059983eecc3db74a3cadf(at)83(dot)225(dot)75(dot)94>, <giuseppe(dot)derossi(at)email(dot)it>
wrote:
> I was studying a solution which foresees the 'case when' construct...
> now I can use it in addition to array_to_string . In fact my solution
> failed too if <it's raining cats and dogs :-) >, but if there are some more
> values I get them all as well.
Is there a timestamp, date, or sequence number that you can use to break
ties? Without something like that, I don't think you can do what you want
with set-based logic -- you would need to do something procedural without
any guarantee that you'd get the same results in two different runs.
-Kevin