plpgsql default arguments

Hello-

I am running postgres on a Linux system and have been using plpgsql to
write functions. Is there a way to specify default arguments? For
example, I would like to offer the user to specify a date to use in my
function but if no date is specified I would like to use the current
date. Easy to do in C, C++, Perl, and Python (and, I assume Java), but
I can't find anything in the documentation or on Google. Is it possible
in plpgsql?

Thanks,
--greg

--
Greg Lindstrom 501 975.4859 (office)
Senior Programmer 501 219-4455 (fax)
NovaSys Health greg(dot)lindstrom(at)novasyshealth(dot)com
Little Rock, Arkansas

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