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It seems you miss the ST_relate function like in PostGIS. Search "relate" word in the reference functions for version 4.2. The signature will look like below : ST_Relate( geom1 Geometry , geom2 Geometry , patternMatrix String ) : Integer patternMatrix is the DE-9IM pattern. PS: If your spatialite version is old, ST_relate may be named relate


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perhaps not as much an answer as a workaround? not sure what is going on with GetNextFeature in conjunction with SetFeature - but it would not iterate as expected. (a bug?) the below workaround seems to do the trick - by first getting a list of all feature FID's - then using GetFeature() in a new loop. def updatePt(): print 'updating...' ...



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