[OSM-dev] Database Schema (was Re: [OSM-talk] Oh dear - planet has duplicate id's)
steve at asklater.com
Mon Jun 25 09:46:35 BST 2007
On 25 Jun 2007, at 06:38, Raphaël Jacquot wrote:
> Tom Hughes wrote:
>> Now ideally I want to do a keyed read on 2+2 then next to 2+3, then
>> do a keyed read on 3+2 and next to 3+3. But I don't actually know
>> what values will match in the first column before I start (and there
>> might be a very large number in a real world case).
>> The alternative (and what will happen now) is that I start at 2+2 and
>> next to 3+3, but that is only marginally better than dropping the
>> column and effectively starting at 2+1 and nexting to 3+4 as I am
>> saving a little bit on the first and last latitudes.
> ideally, this should use
Ideally you should back up your points and refute others
> and that
> for the indexes...
> dev mailing list
> dev at openstreetmap.org
SteveC | steve at asklater.com | http://www.asklater.com/steve/
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