pp wrote:

> > We haven't done measurements. It's not a terribly complex query, but it
> > is one extra query, so there's a performance impact per definition, even
> > if it's minimal.
>
> Yes, but If I get data with /pag/page2/234(my_id).html
> I need run additional querry to block displaying "invisible"
> pages. So the speed shoul stay the same.

When querying for non-existant guids, the speed would be the same, as
the guid query wuold return false and no further work would be done. If
the object exists it takes an additional query to actually fetch the
object data. The guid query just returns information on where to find
this actual object data.

Emile



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