Re: Improving RLS qual pushdown

Поиск
Список
Период
Сортировка
От Dean Rasheed
Тема Re: Improving RLS qual pushdown
Дата
Msg-id CAEZATCVFrkpwchRmzBzCxPU76Fvj=J7rWz7Z9Ww5F-d2Q8nAZg@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Improving RLS qual pushdown  (Robert Haas <robertmhaas@gmail.com>)
Ответы Re: Improving RLS qual pushdown  (Robert Haas <robertmhaas@gmail.com>)
Список pgsql-hackers
On 14 January 2015 at 13:29, Robert Haas <robertmhaas@gmail.com> wrote:
> One thing they could still leak is the number of times they got
> called, and thus possibly the number of unseen rows.  Now if the
> expressions get constant-folded away that won't be an issue, but a
> clever user can probably avoid that.
>

Right now, EXPLAIN ANALYSE can be used to tell you the number of
unseen rows. Is that something that people are concerned about, and
are there any plans to change it?

Regards,
Dean



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Merlin Moncure
Дата:
Сообщение: Re: hung backends stuck in spinlock heavy endless loop
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Minor configure tweak to simplify adjusting gcc warnings