Vincenzo Romano <vincenzo.romano@notorand.it> writes:
> I'm using the printf() function as seen here:
> http://wiki.postgresql.org/wiki/Sprintf
... which is "variadic anyarray".
> I was expecting that a "variadic polymorphic" function was able to
> accept a "variable number of arguments of different types" (a-la C),
> while it looks to me that it actually means "variable number of
> arguments of a single type".
Yup. The array can only contain one element type.
regards, tom lane