[postgis-devel] Empty for Discussion

[Martin Davis]

So seems to me that

ST_NumGeometries('GEOMETRYCOLLECTION(POINT EMPTY, POINT EMPTY)'::geometry)
==> 0

is inconsistent with

ST_GeometryN('GEOMETRYCOLLECTION(POINT EMPTY, POINT EMPTY)'::geometry, 1)
==> POINT EMPTY

I think ST_NumGeometries('GEOMETRYCOLLECTION(POINT EMPTY, POINT
EMPTY)'::geometry) should return 2.

On Fri, Feb 10, 2023 at 11:39 AM Paul Ramsey <pramsey at cleverelephant.ca>
wrote:

> select st_astext('GEOMETRYCOLLECTION(POINT EMPTY, POINT EMPTY)'::geometry);
> select st_isempty('GEOMETRYCOLLECTION(POINT EMPTY, POINT
> EMPTY)'::geometry);
> select st_numgeometries('GEOMETRYCOLLECTION(POINT EMPTY, POINT
> EMPTY)'::geometry); st_numgeometries
> select st_astext(st_geometryn('GEOMETRYCOLLECTION(POINT EMPTY, POINT
> EMPTY)'::geometry, 1));
>
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