Re: Variadic parameters vs parameter defaults

Jeff Davis <pgsql@j-davis.com> writes:
> On Tue, 2008-12-16 at 19:07 -0500, Tom Lane wrote:
>> ISTM one could make a pretty good argument that this last case should
>> succeed, producing an empty-array argument.

> We had a similar discussion before, and you replied here:
> http://archives.postgresql.org/pgsql-patches/2008-07/msg00150.php

> Are you now in favor of allowing zero arguments for a variadic
> parameter?

No, not as such (at least not now that I've had a chance to digest the
alternatives).  The default-parameter mechanism gives us another
solution tool, but if you don't use a default then the same ambiguities
as before still exist.
        regards, tom lane