[OSM-talk] db stats - deleted elements
Andy Robinson
Andy_J_Robinson at blueyonder.co.uk
Wed Aug 23 14:56:52 BST 2006
Joerg kindly sent me the node/segment/way raw stats from the Aug 18 planet.
It reveals that the online stats page (via the wiki) misrepresents the
actual database contents due to the inclusion of deletions. The error is
small for nodes, less than 2%, presumably because it's more likely to change
the segment or way rather than delete nodes. Also, do I recall that the
early Tiger data for segments needed to be updated, so that may be skewing
it too?
The basic figures are below. There will be a small error in these values due
to the planet dump occurring a few hours after the raw stats for the 18th
Aug were written.
Difference
as
percentage
Nodes on Nodes in of active
stats page planet Difference elements
Nodes 13689463 13436254 253209 1.88%
Segments 10796543 9566333 1230210 12.86%
Ways 2953365 2548673 404692 15.88%
Cheers,
Andy
Andy Robinson
Andy_J_Robinson at blueyonder.co.uk
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