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FromGeoJSON - polygon Z
:memory: #use in-memory database
SELECT AsEWkt(GeomFromGeoJSON('{"type":"Polygon","crs":{"type":"name","properties":{"name":"EPSG:3003"}},"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
AsEWkt(GeomFromGeoJSON('{"type":"Polygon","crs":{"type":"name","properties":{"name":"EPSG:3003"}},"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
SRID=3003;POLYGON((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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