> Probably a very simple question, but how do you define a function that
> returns the sucess of an insert or update in a function i.e.
>
> CREATE FUNCTION foo ( varchar, int8 ) RETURNS bool
> AS 'UPDATE table WHERE something'
> LANGUAGE 'sql';
With SQL functions you can't (as far as I know). Try PLPGSQL ones instead,
you can use the keyword 'found'. See the documentation for details.
Zoltan