elein <[EMAIL PROTECTED]> writes:
> You can do it in C, of course.

Yeah.  Also you could do it easily in plperl or pltcl (composite-type
arguments get passed as perl hashes or Tcl arrays respectively).
plpgsql does not have any facility for run-time determination of field
names, so you're pretty much out of luck in that particular language.

                        regards, tom lane

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