Re: new and old as parameter in a function

"Riccardo G. Facchini" <abief_ag_-postgresql(at)yahoo(dot)com> writes:
> By Reading the documentation, I understand that I can write a PLPGSQL
> function that receives a parameter of type RECORD,

You misread it --- that's not presently supported.

regression=# create function foo(record) returns int as '
regression'# begin
regression'# return $1.f1;
regression'# end' language plpgsql;
ERROR: plpgsql functions cannot take type record

However you can make a plpgsql function that accepts a parameter of a
specific (named) rowtype:

regression=# create table fooey(f1 int, f2 text);
CREATE TABLE
regression=# create function foo(fooey) returns int as '
regression'# begin
regression'# return $1.f1;
regression'# end' language plpgsql;
CREATE FUNCTION

regards, tom lane