Re: Should pg 11 use a lot more memory building an spgist index?

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: Should pg 11 use a lot more memory building an spgist index?
Дата
Msg-id 25927.1540557847@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Should pg 11 use a lot more memory building an spgist index?  (Bruno Wolff III <bruno@wolff.to>)
Ответы Re: Should pg 11 use a lot more memory building an spgist index?
Re: Should pg 11 use a lot more memory building an spgist index?
Список pgsql-general
Bruno Wolff III <bruno@wolff.to> writes:
>   Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Hmm, in my hands this produces the same size leak (~28GB) in either v10
>> or v11.  In HEAD, somebody's made it even worse (~43GB).  So this is
>> certainly pretty broken, but I'm not sure why it seems worse to you in
>> v11 than before.

> As a short term work around, could I create the index first and use 
> insert statements, each in their own transaction, to get the table loaded 
> with the index?

Yes; it might also be that you don't even need to break it up into
separate statements.

> Is the issue on Fedora taking very long to build a normal spgist index for 
> network addresses worth pursuing separately, or is it likely to be the same 
> underlying cause?

This issue only applies if it was an exclusion constraint.  If you saw
slowness or bloat with a plain index, that would be worth investigating
separately.

            regards, tom lane


В списке pgsql-general по дате отправления:

Предыдущее
От: Andrew Gierth
Дата:
Сообщение: Re: Shell Command within function
Следующее
От: Thomas Kellerer
Дата:
Сообщение: Different memory allocation strategy in Postgres 11?