[postgis-devel] Should EMPTY be spatially equal to self ?

[Sandro Santilli]

I was doing this nice round-trip WKB test:

  SELECT ST_Equals(g, g::wkb::geometry)

... when I got a few FALSE returns.

WKB Reader or Writer bug ?
NO, it is that EMPTY isn't equal to itself !

So, what do you think ? Should it be equal ?

The box of an EMPTY geometry is an EMPTY box.
Is the EMPTY box equal to self ? I think it is.

See also http://trac.osgeo.org/postgis/ticket/1453

--strk; 

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