[OSM-dev] Using NULL values in mapnik / postgres DB

Frederik Ramm frederik at remote.org
Wed Feb 21 00:01:24 GMT 2007


Hi,

    just a quick chip-in from someone who is totally ignorant of the 
Postgres data model:

> If we're changing the database layout; do you see a chance of changing the 
> scheme with one column per feature to something like one column with a 
> feature_id. Then for example
[...]

I don't know the relation between your "linestrings" and what I know as 
segments. Just wanted to say that I regularly create multiple ways 
sharing the same segments (e.g. one being a road, one a tram running on 
that road). I guess this will automatically separate in multiple 
"linestrings" and thus not pose a problem?

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00.09' E008°23.33'




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