Re: The optimizer is too smart for me - How can I trick it?

> I've implemented Depesz's running total function
> (http://www.depesz.com/index.php/2007/08/17/rownum-anyone-cumulative-
> sum-in-
> one-query/) in my DB, which works great.
> Now what I want to do is get the running total for a certain statement
> and
> then do a subselect on that result so to get a non-zero start on a
> function.
>
> Instead, the optimizer sees what I'm trying to do, moves the where
> clause
> inside the subquery and my output becomes
>
> What can I do to tell the optimizer to keep its hands off my query or
> at
> least get it to not optimize?
>

I think if you add a LIMIT/OFFSET clause to your subquery, the planner
will leave it alone.