Re: Trigger and function not on speaking terms

On Mon, 2 Aug 2004, Jeff Boes wrote:

> Hmm, this is puzzling me:
>
> create or replace function fn_foo(text) returns trigger as '
> begin
>    # Do some stuff with $1
> end;
> ' language 'plpgsql';
>
> CREATE FUNCTION
>
> create table bar (aaa text);
>
> CREATE TABLE
>
> create trigger trg_bar
> after insert or update on bar
> execute procedure fn_foo('string');
>
> ERROR:  function fn_foo() does not exist
>
> It would seem my trigger definition is trying to find fn_foo(), when I
> mean for it to call fn_foo(TEXT).

I don't remember why, but the arguments from the create trigger statement
are passed differently from standard arguments (I think it's like TGARGS
in plpgsql).