Re: bad execution plan for subselects containing windowing-function

Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Andreas Kretschmer <akretschmer(at)spamfence(dot)net> writes:
> > No question, this is a silly query, but the problem is the 2nd query: it
> > is obviously not possible for the planner to put the where-condition
> > into the subquery.
>
> Well, yeah: it might change the results of the window functions.
> I see no bug here. Your second query asks for a much more complicated
> computation, it's not surprising it takes longer.

Thank you for the fast answer.

But sorry, I disagree. It is the same query with the same result. I can't see
how the queries should return different results.

What have i overlooked?

tia, Andreas
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