On 4/9/07, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> "Merlin Moncure" <mmoncure(at)gmail(dot)com> writes:
> > I have an odd performance issue on 8.2 that I'd thought I'd document
> > here. I have a workaround, but I'm if there is something that I'm not
> > seeing.
>
> It's hard to comment on this without seeing the full details of the view
> and tables. I'm wondering where the SubPlans are coming from, for instance.
ah, it looks like the aggregate is being re-expanded for each field
returned by the aggregate. I notice this for non-trivial record
returning functions also. standard m.o. is to push into a subquery
and expand afterwords.
merlin