Re: sunquery and estimated rows

В Сбт, 17.04.2004, в 01:45, Tom Lane пишет:

> The planner sees that as "where scope = <some complicated expression>"
> and falls back to a default estimate.  It won't simplify a sub-select
> to a constant.  (Some people consider that a feature ;-).)

Why?

Thanks

--
Markus Bertheau <twanger@bluetwanger.de>