Search the recent archives for "DECODE" and "NVL" (those are Oracle
functions, but people had he same problems with them as you with
CONCAT).
The basic idea is that in postgres you can overload functions, so you
can create more versions of the function with different parameter
counts/types. Just make sure you implement all the variations you use in
your code.
Cheers,
Csaba.
On Tue, 2003-09-16 at 15:50, Marek Lewczuk wrote:
> >
> > text concat(text,text)
> >
> > return text1 || text2
> >
>
> If it would be so simple I would not write to this group. You see,
> CONCAT function doesn't have any arguments limitations, so there could
> be one, two or more arguments. And this is my problem, how to write
> function without given arguments number.
>
>
>
>
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