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FromGeoJSON - polygon Z
:memory: #use in-memory database
SELECT AsText(GeomFromGeoJSON('{"type":"Polygon","coordinates":[[[1,2,2.3],[4,5,1.2],[2,2,1.6],[1,2,2.3]],[[1.5,2.5,2],[3.5,4.5,9],[2.5,3,1],[1.5,2.5,2]]]}'));
1 # rows (not including the header row)
1 # columns
AsText(GeomFromGeoJSON('{"type":"Polygon","coordinates":[[[1,2,2.3],[4,5,1.2],[2,2,1.6],[1,2,2.3]],[[1.5,2.5,2],[3.5,4.5,9],[2.5,3,1],[1.5,2.5,2]]]}')):0
POLYGON Z((1 2 2.3, 4 5 1.2, 2 2 1.6, 1 2 2.3), (1.5 2.5 2, 3.5 4.5 9, 2.5 3 1, 1.5 2.5 2))
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