jiayuasu opened a new issue, #3175: URL: https://github.com/apache/sedona/issues/3175
## What's missing `ST_Intersection` has no geography overload. `docs/api/sql/geography/Geography-Functions/` currently documents ST_Area, ST_AsEWKT, ST_AsText, ST_Buffer, ST_Centroid, ST_Contains, ST_DWithin, ST_Distance, ST_Envelope, ST_Equals, ST_GeometryType, ST_Intersects, ST_Length, ST_NPoints, ST_NumGeometries and ST_Within — the overlay operations are absent. ```sql -- wanted SELECT ST_Area(ST_Intersection(geogA, geogB)); -- spherical overlay, area in m^2 ``` ## Why This is the one function blocking the geography form of SpatialBench Q9 (building conflation / IoU) on Sedona. The query is a polygon self-join that computes `ST_Area(ST_Intersection(a, b)) / (area_a + area_b - overlap)`; with geography inputs the areas come back in m² and the IoU is directly interpretable, whereas the planar form yields square degrees. ## Reference SedonaDB already implements it — `ST_Intersection(geography, geography) -> geography` — so there is a reference for the expected semantics. Part of https://github.com/apache/sedona/issues/2830. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
