[Tilesathome] blank tile lookup problem

spaetz osm at sspaeth.de
Tue Jul 31 12:36:33 BST 2007


On Tue, Jul 31, 2007 at 10:45:58AM +0200, Frederik Ramm wrote:
> Am I right that this is only applicable to level 11 and smaller?  
> Because for Level 12 and above, the uploading client knows which  
> tiles are completely empty, and we do not have to insert tons of  
> blank tile records - right?

You are right, on inserting a blank tile we just have to check whether the "higher" blank info has the right type of blank (which it always should) and not insert anything.

I adapted my proposal on the wiki page, it is still very much work in progress though and I spot many flaws as i think about it. :-)

Still, I think it might be beneficial to not have a table with 72mio entries in it :-).

spaetz
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