elein <elein(at)varlena(dot)com> writes:
> So, other than C, plperl or pltcl is the way to go.
> As long as they can input generic composite types
> (I wasn't sure of that, but I should have known),
Come to think of it, that is a problem: we don't have any way to declare
a function as taking "any tuple type". So even though pltcl or plperl
functions could be written to work with such input, we can't declare them.
This is a problem even for C functions. You could declare a C function
as taking "any", but then you can't even check that what you got was a
tuple ...
Something to work on for 7.5, I suppose.
regards, tom lane