https://bugzilla.wikimedia.org/show_bug.cgi?id=56840

--- Comment #15 from C. Scott Ananian <canan...@wikimedia.org> ---
I think it's actually the OFFSET clause (in this case, the first element of the
LIMIT tuple) which is slowing things down.  There isn't an effective index that
can quickly give you the "86786th article after Centennial_Trail_State_Park". 
So instead it's sequentially scanning through 86,786 entries (and the offset
grows the further you go).

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