[postgis-users] Why should these boxes intersect?

[DrYSG]

It took me 72 hours to add a GIST indexed geography column, but now I can
report the results:

I don't see any noticable performance hit in going from goem x geom
intersection to geog x geog intersection (where the geog column in the table
is 20M in size).

I think this is due to the fact that the search is disk speed limited.




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