Re: A bug in triggers PG 7.1.3 or misunderstand ?

tgl@sss.pgh.pa.us (Tom Lane) wrote in message news:<28856.1001608373@sss.pgh.pa.us>...
> I think you need "return old", not "return new", in the body of the
> trigger if you want the delete to take place.  new would be NULL in
> a delete situation ...
> 
>             regards, tom lane
> 
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Ok I saw that in the documentation so I tryied a variant of it:

if TG_OP = 'DELETE' thenreturn old;
elsereturn new;
end if;

But the TG_OP comes empty and it allawys try return new preventing the
delete to happen.

And that was supposed to work isn't it ?