Re: Performance of subselects

On Sun, Mar 8, 2009 at 12:47 PM, Grzegorz Jaśkiewicz <gryzman@gmail.com> 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.