[OSM-dev] osm2pgsql deltas

Steve Hill steve at nexusuk.org
Mon Jan 18 10:23:44 GMT 2010


On Mon, 18 Jan 2010, Frederik Ramm wrote:

> Yes, and I have explained about 1.000 times that what comes out of Osmosis

You may have explained all this on this list 1,000 times (which I very 
much doubt), but I couldn't find any of it properly documented anywhere on 
the Wiki...

> WILL be one single (daily or 1.73daily or 2.918daily or 0.002daily depending 
> on how often you call it) file.

I'd wager that having Osmosis download 1440 minutely diffs and assemble 
them into a daily diff is going to take significantly more time than just 
wgetting a single daily diff.  However, I can't verify my assumption at 
the moment because I'm having to spend my time battling (and currently 
failing) to get a honking great Java application (Osmosis) to work to do 
all this.  I'm afraid this seems like a retrograde step to me, compared 
with the relative simplicity of stuffing diffs directly into osm2pgsql.

-- 

  - Steve
    xmpp:steve at nexusuk.org   sip:steve at nexusuk.org   http://www.nexusuk.org/

      Servatis a periculum, servatis a maleficum - Whisper, Evanescence





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