Re: Drupal and PostgreSQL - performance issues?

* Tomasz Ostrowski (tometzky(at)batory(dot)org(dot)pl) wrote:
> There is an issue report with lengthy discussion on drupal.org:
> http://drupal.org/node/196862
> And a proposed patch:
> http://drupal.org/files/issues/drupal_lookup_path-5.x.patch.txt
> which uses "limit 1". This patch is not applied though. I don't know why.

I don't see 'limit 1' anywhere in that patch.. And you don't want to
use 'limit 1' *and* count(*), that doesn't do what you're expecting
(since count(*) is an aggregate and limit 1 is applied after). You
really want to do something more like:

select true from tab1 limit 1;

And then test if you got back any rows or not (which might be what
*your* patch does, hadn't looked at it yet).

Thanks,

Stephen