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Fixed LayerMapping with Oracle 23c.
Oracle 23c collapses MULTI geometries with only one entry to their non-MULTI type. Added check when loading geometries from the database that a MULTI type is returned. Reconvert to correct geometry type, if required.
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@ -646,6 +646,14 @@ class LayerMapping:
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else:
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geom = geom_value.ogr
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new = OGRGeometry(kwargs[self.geom_field])
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if (
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geom_typeid := geom.geos.geom_typeid
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) in self.MULTI_TYPES:
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# Database returned non-MULTI type, reconvert.
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multi_type = self.MULTI_TYPES[geom_typeid]
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g = OGRGeometry(multi_type)
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g.add(geom)
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geom = g
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for g in new:
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geom.add(g)
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setattr(m, self.geom_field, geom.wkt)
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