[OSM-dev] osm2pgsql, -e option might affect too many tiles

[marqqs at gmx.eu]

Hello,

I'm using osm2pgsql with the excellent -e option which allows me to generate dirty-tiles lists. It's my observation that the output can be somewhat extensive if you just change ONE node. For example:

I change the name of a single node. This causes osm2pgsql to put not only the node's tile on the list but also every tile which is touched by every way which uses this single node. I guess there's a reason for this behaviour. Does anybody know situations in which it is really necessary to rerender all these ways?

Markus