Re: Delete huge Table under XFS

Поиск
Список
Период
Сортировка
От Andreas Kretschmer
Тема Re: Delete huge Table under XFS
Дата
Msg-id 357e7bd3-1b40-180c-14ce-7911229b5efb@a-kretschmer.de
обсуждение исходный текст
Ответ на Delete huge Table under XFS  (Joao Junior <jcoj2006@gmail.com>)
Ответы Re: Delete huge Table under XFS  (Joao Junior <jcoj2006@gmail.com>)
Список pgsql-performance

Am 19.09.19 um 17:59 schrieb Joao Junior:
>
>
> I have a table that Is not being use anymore, I want to drop it.
> The table is huge, around 800GB and it has some index on it.
>
> When I execute the drop table command it goes very slow, I realised 
> that the problem is the filesystem.
> It seems that XFS doesn't handle well big files, there are some 
> discussion about it in some lists.

PG doesn't create one big file for this table, but about 800 files with 
1GB size each.

>
> I have to find a way do delete the table in chunks.

Why? If you want to delete all rows, just use TRUNCATE.


Regards, Andreas

-- 
2ndQuadrant - The PostgreSQL Support Company.
www.2ndQuadrant.com




В списке pgsql-performance по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: comparing output of internal pg tables of referenced tables
Следующее
От: Luís Roberto Weck
Дата:
Сообщение: Slow query on a one-tuple table