[postgis-devel] Issue 93 in postgis: ST_Extent() and ST_Estimated_Extent() return BOX2DFLOAT4s

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Comment #2 on issue 93 by olivier.courtin: ST_Extent() and  
ST_Estimated_Extent() return BOX2DFLOAT4s
http://code.google.com/p/postgis/issues/detail?id=93

box3d_extent is not recognize by other Postgis function who already are  
able to deal with box3d


SELECT ST_Extent("surfaceProperty") FROM "PrimitiveGeoFeature";
BOX(45.174 30.466,45.891 30.899)

SELECT ST_MAX(ST_Extent("surfaceProperty")) FROM "PrimitiveGeoFeature";
ERROR:  function st_max(box3d_extent) does not exist

SELECT ST_MAX(ST_Extent("surfaceProperty")::box2d)  
FROM "PrimitiveGeoFeature";
ERROR:  cannot cast type box3d_extent to box2d

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