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Combine different keys in overlapping polygons

Question asked by kat_bizou_2020 on Jul 7, 2020
Latest reply on Jul 9, 2020 by

We have a polygon layer and in some places polygons with different keys overlap. The overlapping cases vary from 2 to 4 different overlapping polygons .

When a polygon overlaps in part with another we want to spit them in more polygons (2 new polygons of the no overlapping area and one third new polygon for the overlapping area but having also the key information of the 2 overlapping polygons.

We could split them using UNION but how could we “MERGE” the different information of the common area polygons?

Any idea will be very helpful.