Vacuum from within a function crashes backend

Hello,

I did a vacuum from within a function, and it went sig11 on me.
Is it illegal to do that?

The function:

drop function xorder1_cleanup();
create function xorder1_cleanup() RETURNS integer AS '
declare
x record;
c integer;
begin
c:=0;
FOR x IN SELECT order_id,count(*) as cnt FROM xorder1_updates group by order_id LOOP
if x.cnt > 1 then
c:=c+x.cnt;
delete from xorder1_updates where order_id = x.order_id;
insert into xorder1_updates(order_id) values (x.order_id);
end if;
END LOOP;
execute ''vacuum full analyse xorder1_updates;'';
return c;
end;
' LANGUAGE 'plpgsql';

Magnus

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Programmer/Networker [|] Magnus Naeslund
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