[Qgis-user] Clip - unsupported geometrytype -2147483646

[ralfwessels]

Hi Lene,

if you store your data in PostGIS, you can use ST_GeometryType().

Example counting the objects by geometry type:
/SELECT COUNT(*) AS number, ST_GeometryType(geometry) AS geomtype FROM
mytable
GROUP BY ST_GeometryType(geometry)/

.....but if there are different geometry objects in a dataset, the PostGIS
geometry data type should be "geometry"  and not "MultiPolygon",
"MultiLine.......

ralf




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