On Tue, 20 Aug 2002, Martin Marques wrote: > Quoting Stephan Szabo <[EMAIL PROTECTED]>: > > > > > > The problemas are two: > > > > > > 1) when I try to create the trigger, it says that the function doesn't > > exist. > > > Why is this happening? > > > > You should probably show us what you were trying to do, but I'm going to > > guess that the function doesn't have the right signature. On > > current versions, Trigger functions should return opaque and take no > > arguments (any arguments given on the create trigger line are passed > > in a different fashion). > > I have this function which works OK. > > CREATE FUNCTION ahora (integer) RETURNS integer AS ' > UPDATE usuarios SET tmodif = now() > WHERE codigo = $1; > SELECT 1 as RESULT; > ' LANGUAGE SQL
Trigger functions have no args and return opaque and I don't think you can use sql language functions, but I'm not sure. Something like: create function ahora_trigger() returns opaque as ' begin NEW.tmodif := now(); return NEW; end;' language 'plpgsql'; should work as a before update trigger. ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
