Re: Question about DROP TABLE

Поиск
Список
Период
Сортировка
Искать
От
Pavel Stehule
Тема
Re: Question about DROP TABLE
Дата
Msg-id
CAFj8pRCWbVhOfeyf9Gfd2sGSbq4+3Q1DB=2wktpggyQumeFR9Q@mail.gmail.com
Ответ на
Question about DROP TABLE (Michal Novotny)
Список
Дерево обсуждения
Question about DROP TABLE Michal Novotny <michal.novotny@trustport.com>
Re: Question about DROP TABLE Andres Freund <andres@anarazel.de>
Re: Question about DROP TABLE Michal Novotny <michal.novotny@trustport.com>
Re: Question about DROP TABLE Andres Freund <andres@anarazel.de>
Re: Question about DROP TABLE Michal Novotny <michal.novotny@trustport.com>
Re: Question about DROP TABLE Michal Novotny <michal.novotny@trustport.com>
Re: Question about DROP TABLE Pavel Stehule <pavel.stehule@gmail.com>
Re: Question about DROP TABLE Michal Novotny <michal.novotny@trustport.com>
Re: Question about DROP TABLE Pavel Stehule <pavel.stehule@gmail.com>
Re: Question about DROP TABLE Andres Freund <andres@anarazel.de>
Re: Question about DROP TABLE Michal Novotny <michal.novotny@trustport.com>
Re: Question about DROP TABLE Marko Tiikkaja <marko@joh.to>
Re: Question about DROP TABLE Pavel Stehule <pavel.stehule@gmail.com>
Hi

2016-01-12 11:57 GMT+01:00 Michal Novotny <michal.novotny@trustport.com>:
Dear PostgreSQL Hackers,
I've discovered an issue with dropping a large table (~5T). I was
thinking drop table is fast operation however I found out my assumption
was wrong.

Is there any way how to tune it to drop a large table in the matter of
seconds or minutes? Any configuration variable in the postgresql.conf or
any tune up options available?

drop table should be fast.

There can be two reasons why not:

1. locks - are you sure, so this statement didn't wait on some lock?

2. filesystem issue  - can you check the speed of rm 5TB file on your IO?

Regards

Pavel



 

PostgreSQL version used is PgSQL 9.4.

Thanks a lot!
Michal


--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

В списке pgsql-hackers по дате отправления
От: Michal Novotny
Дата:
Сообщение: Question about DROP TABLE
От: Andres Freund
Дата:
Сообщение: Re: Question about DROP TABLE
FAQ