Re: Postgresql 9.1.2 - abnormal memory usage

Поиск
Список
Период
Сортировка
От Heikki Linnakangas
Тема Re: Postgresql 9.1.2 - abnormal memory usage
Дата
Msg-id 4EE5E66F.5080508@enterprisedb.com
обсуждение исходный текст
Ответ на Re: Postgresql 9.1.2 - abnormal memory usage  (Matteo Beccati <php@beccati.com>)
Ответы Re: Postgresql 9.1.2 - abnormal memory usage  (Jochen Erwied <jochen@pgsql-bugs.erwied.eu>)
Список pgsql-bugs
On 12.12.2011 13:16, Matteo Beccati wrote:
> On 12/12/2011 09:29, Heikki Linnakangas wrote:
>> On 12.12.2011 08:26, Tom Lane wrote:
>>> Andres Freund<andres@anarazel.de>   writes:
>>>> In 3b8161723c645853021b57330dd2ea0484ec6131 Heikki made DatumGetInetP
>>>> unpack
>>>> toasted values. Unfortunately the btree support functions for the
>>>> inet type
>>>> didn't free memory which they have to do in contrast to about
>>>> everything else.
>>>
>>>> I fixed a few more functions than strictly necessary but I guess
>>>> thats ok.
>>>
>>> Seems like the correct fix is to revert these functions to the former
>>> behavior, ie they should be using the PP macros not the unpacking ones.
>>
>> Agreed, there's no need to unpack here. Fixed, thanks for the report!
>
> Just to clarify, am I correct assuming that the issue does not affect
> tables which have non-indexed inet fields?

Hmm, I think it might also affect queries that do large merge joins on
inet fields. Not sure about that. In any case, it's a memory leak that
gets cleared at the end of statement, so it can only become a problem
when dealing with large data sets.

--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

В списке pgsql-bugs по дате отправления:

Предыдущее
От: Matteo Beccati
Дата:
Сообщение: Re: Postgresql 9.1.2 - abnormal memory usage
Следующее
От: Jochen Erwied
Дата:
Сообщение: Re: Postgresql 9.1.2 - abnormal memory usage