This seems like a pretty basic question to ask but something we haven't encountered yet with FME Desktop. If we have two datasets and I only want to do a one way synchronization of the attribute values from a new polygon layer to an old polygon layer. How do I do that? I don't want to overwrite the geometry features in the old layer, but I do want to "calculate" the new attribute values over to the new layer. Will just changing the geometry in the writer dialog box from polygon to no_geom and selecting "UPDATE" as writer mode do the trick? It doesn't seem like it would be that simple.
+5
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21 August 2021
UPDATE will require a primary key field common to both datasets so that it knows what record to update. But I would say that, yes, with an AttributeManager in between them, you should be able to map the attributes you want and have the old polygons update with the new info.
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