[postgis-devel] Empty for Discussion

[Paul Ramsey]

> On Feb 10, 2023, at 3:48 PM, Regina Obe <lr at pcorp.us> wrote:
> 
> Agree in the sense, that yes if number of geometries is 0, then I expect ST_GeometryN of anything to give me NULL back.  It has also been like that for quite some time so all supported versions I assume agree (I didn’t check 3.0).
> 

Right, but we're talking about GEOMETRYCOLLECTION(POINT EMPTY, POINT EMPTY) here, which has... 2 geometries in the collection.