[OSM-dev] osm2pgsql hstore support

[Sven Geggus]

Lennard <ldp at xs4all.nl> wrote:

> Very cool this. What's the speed to access the hstore column, compared 
> to the generic columns we now have?

I did not yet try to measure this.

> On the one hand, this has the potential to greatly increase the size of 
> the db, as you will now get all kinds of tags you're never interested 
> in.

Shure, but unwanted tags can already get removed using the delete flag in
the stylefile. While testing I already removed note and source tags
while importing data.

> On the other hand, one can now quickly use keys one never used 
> before, without the need to reimport the whole db.

Thats the thing I was up to: Enabling the generation of special
interest maps with tags somebody invented just recently.

Sven

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