Large aperture query#42
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This is a PR that speeds up large aperture ellipse or circular queries, by actually checking what is the status of each face.
In practice the effect of this will be limited to skipping a few faces.
Given the way the sql is written currently*, there is no benefit from classifying face as fully covered vs partially covered.
((i1<i<i2) or (i3<i<i4)
or
(i5<i<i6) or (i7<i<i8)) AND distance()<..
where i1..i2,i3..i4 correspond to fully covered cells, i5..i6,i7..i8 correspond to partially cells