hi,
i wrote a function in plperl which i want to use with postfix. the
function should only return a value in certain cases, otherwise it
should return "nothing", not the empty string. i don't know how to do that.
presently i begin with
"CREATE FUNCTION foo (text, text) RETURNS character varying (255)"
and end with
"if ($ary[0][1] eq $bar) { return $val; }"
this ALWAYS returns a "row", which is not what i want
thx for advice
matthias