paleolimbot opened a new issue, #304:
URL: https://github.com/apache/sedona-db/issues/304

   In https://github.com/apache/sedona-db/pull/298 we implemented ST_Boundary() 
using GEOS with some custom logic to handle geometry collections. The 
non-geometry collection case should be reasonably easy to implement using 
geo-traits (writing output incrementally with `sedona_geometry::wkb_factory`). 
The geometrycollection case I believe can use the wkb geometry classes (which 
are fairly lightweight since they do not own their coordinate sequences).


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