Re: Variadic parameters vs parameter defaults

On Wed, Dec 17, 2008 at 11:07 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> ISTM one could make a pretty good argument that this last case should
> succeed, producing an empty-array argument.  If you buy that, then it
> is sensible to forbid defaults for variadics,

Yep, +1 for this approach.  I would intuitively expect that, if I omit
variadic argument(s) when calling a function, that the function ends
up getting an empty array of the appropriate type.

And when writing a variadic function, I wouldn't find it all
surprising or annoying if I was not allowed to override this default.
In the unlikely case I want my function to do something special when
it gets an empty array, I can write that behaviour into the function
body.

Cheers,
BJ