Search Postgresql Archives

Re: Performance of subselects

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sun, Mar 8, 2009 at 12:47 PM, Grzegorz Jaśkiewicz <gryzman@xxxxxxxxx> wrote:
> work_mem constraints amount of memory allocated per connection, hence

Actually, it's per sort. And there can be > 1 sort per query.

> you can run out of memory if too many connections try to use too much
> of it at the same time, that's why it is advisable to set work_mem per
> connection/query, should the connection/query require more.

Definitely.

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


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux