Re: xmlconcat as variadic function

On Mon, Nov 17, 2008 at 6:22 AM, Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
> Here is a patch to reimplement the xmlconcat functionality as a variadic
> function instead of a hardcoded special expression type. I haven't found
> any variadic function in the set of built-in functions so far, so I figured
> I would ask for feedback before we go down this route.

One small side effect is that variadic functions have stricter casting
rules...you can't pass string literals without a cast. This is not
necessarily a bad thing, but the invocations are not quite compatible.

merlin