Hi all, so I have a problem with user rowers2 who has been tracing buildings (with Tracer2) quite carelessly. After doing this (which he does in quite high volume) he then merges address nodes with building outlines. E.g. https://nrenner.github.io/achavi/?changeset=53993885 JOSM has an option to merge (by copying tags and deleting the node) address nodes into building outlines. However, it can also merge POI whenever they have address tags, which isn't always appropriate, e.g. for ATMs or anything that doesn't occupy the whole building (quite easy to tell by common sense, but not really automatically).
I stumbled into this ATM shenanigans purely by chance in PostGIS when searching for nodes inside areas which both have same amenity value. But this pertains also to other POI like tourism=information. How can I, having a full history dump for an area, find all POI nodes (having shop/amenity/office...) that were deleted by user rowers2? Or, which DB schema can deal with history reasonably? Michał
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