Re: [PATCH] Increase the maximum value track_activity_query_size

Поиск
Список
Период
Сортировка
От Andrew Dunstan
Тема Re: [PATCH] Increase the maximum value track_activity_query_size
Дата
Msg-id CAA8=A7_z-B3DZVi4Pj84fX+hm5q27px+qOMLL2x=A2x1+M=MRA@mail.gmail.com
обсуждение исходный текст
Ответ на Re: [PATCH] Increase the maximum value track_activity_query_size  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Список pgsql-hackers
On Tue, Dec 31, 2019 at 11:16 AM Tomas Vondra
<tomas.vondra@2ndquadrant.com> wrote:
>
> On Tue, Dec 31, 2019 at 10:25:26AM +1030, Andrew Dunstan wrote:
> >On Tue, Dec 31, 2019 at 10:16 AM Andrew Dunstan
> ><andrew.dunstan@2ndquadrant.com> wrote:
> >>
> >> On Tue, Dec 31, 2019 at 9:38 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> >>
> >> >
> >> > This doesn't seem like a reason not to allow a higher limit, like a
> >> > megabyte or so, but I'm not sure that pushing it to the moon would be
> >> > wise.
> >> >
> >>
> >>
> >> Just to get a mental handle on the size of queries we might be
> >> allowing before truncation, I did some very rough arithmetic on what
> >> well known texts might fit in a megabyte. By my calculations you could
> >> fit about four Animal Farms or one Madame Bovary in about a megabyte.
> >> So I think that seems like more than enough :-). (My mind kinda
> >> explores at the thought of debugging a query as long as Animal Farm.)
> >>
> >
> >
> >Turns out my arithmetic was a bit off. Animal Farm is 90 kb, Madame
> >Bovary 678 Kb.
> >
>
> Not sure, but the Animal Farm text I found is about ~450kB (~120 pages,
> with ~3kB per page) ...


My browser has led me astray.
http://gutenberg.net.au/ebooks01/0100011.txt is in fact 172618 bytes.

cheers

andrew


-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Jon Jensen
Дата:
Сообщение: [PATCH] Fix parallel query doc typos
Следующее
От: "Bossart, Nathan"
Дата:
Сообщение: Re: archive status ".ready" files may be created too early