[OSM-dev] Planet diff's revisited

Thomas Walraet thomas at walraet.com
Wed Jul 25 13:18:58 BST 2007


Brett Henderson a écrit :
> 
> Osmosis can also generate diff files (actually object changes, not line 
> changes) but I suspect Jon's diff tool will be a lot quicker if it works 
> at a raw text file level rather than an OSM entity level.  Then again, 
> his use of an xml delta file extension suggests otherwise.

I think it's better to have a diff at OSM entity level.

Such a diff may be used by a script to modify a base populated with 
osm2pgsql (instead of importing the whole DB each week).
It could also be used easily to know which tiles need to be redrawn 
since last planet.




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