> OTOH, looking for images on Commons in "GFDL" and "Buildings in
> Berlin" took ~2min. Might be the giant GFDL category, or the
> toolserver, or both. I'll try to fiddle with it some more utilising
> cat_pages/cat_files.


Hah! By using small categories first, then restricting possible
page_ids in the query for the larger categories, I got it down to 3
sec!

Testing "Buildings in Berlin" and "PD Old" (to avoid false timings
from cache) : < 0.6 sec.

This way, adding more intersections with small categories (where
currently "small" is < 20.000 pages) will actually make the query run
faster.

I think I'm onto something here. Then again, I thought that before :-)

Magnus

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