--- Comment #4 from Bryan Tong Minh <> 2011-01-24 
08:08:02 UTC ---
(In reply to comment #3)
> (In reply to comment #2)
> > Somebody who has knowledge about how mysql handles indices needs to look 
> > into
> > this. I don't know if MySQL is able to merge three indices to make the 
> > required
> > query sane.
> There is no such thing as merging indices.
Well, then we're pretty screwed already, as we are sorting by img_name and have
conditions on img_size, which are two separate indices.

We should first make sure that img_name is included in all indices.

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